From 56de1377ad92f72ee4e5cb0faf7a9b6048fdf0bf Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Wed, 30 Jul 2014 11:13:52 +0800 Subject: hwmon: (ads1015) Fix off-by-one for valid channel index checking Current code uses channel as array index, so the valid channel value is 0 .. ADS1015_CHANNELS - 1. Signed-off-by: Axel Lin Cc: stable@vger.kernel.org Signed-off-by: Guenter Roeck --- drivers/hwmon/ads1015.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/hwmon/ads1015.c b/drivers/hwmon/ads1015.c index 7f9dc2f86b63..22e0c926989d 100644 --- a/drivers/hwmon/ads1015.c +++ b/drivers/hwmon/ads1015.c @@ -198,7 +198,7 @@ static int ads1015_get_channels_config_of(struct i2c_client *client) } channel = be32_to_cpup(property); - if (channel > ADS1015_CHANNELS) { + if (channel >= ADS1015_CHANNELS) { dev_err(&client->dev, "invalid channel index %d on %s\n", channel, node->full_name); -- cgit v1.2.3 From 3248c3b771ddd9d31695da17ba350eb6e1b80a53 Mon Sep 17 00:00:00 2001 From: Guenter Roeck Date: Tue, 29 Jul 2014 22:23:12 -0700 Subject: hwmon: (lm85) Fix various errors on attribute writes Temperature limit register writes did not account for negative numbers. As a result, writing -127000 resulted in -126000 written into the temperature limit register. This problem affected temp[1-3]_min, temp[1-3]_max, temp[1-3]_auto_temp_crit, and temp[1-3]_auto_temp_min. When writing pwm[1-3]_freq, a long variable was auto-converted into an int without range check. Wiring values larger than MAXINT resulted in unexpected register values. When writing temp[1-3]_auto_temp_max, an unsigned long variable was auto-converted into an int without range check. Writing values larger than MAXINT resulted in unexpected register values. vrm is an u8, so the written value needs to be limited to [0, 255]. Cc: Axel Lin Cc: stable@vger.kernel.org Reviewed-by: Axel Lin Signed-off-by: Guenter Roeck --- drivers/hwmon/lm85.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) diff --git a/drivers/hwmon/lm85.c b/drivers/hwmon/lm85.c index b0129a54e1a6..ef627ea71cc8 100644 --- a/drivers/hwmon/lm85.c +++ b/drivers/hwmon/lm85.c @@ -155,7 +155,7 @@ static inline u16 FAN_TO_REG(unsigned long val) /* Temperature is reported in .001 degC increments */ #define TEMP_TO_REG(val) \ - clamp_val(SCALE(val, 1000, 1), -127, 127) + DIV_ROUND_CLOSEST(clamp_val((val), -127000, 127000), 1000) #define TEMPEXT_FROM_REG(val, ext) \ SCALE(((val) << 4) + (ext), 16, 1000) #define TEMP_FROM_REG(val) ((val) * 1000) @@ -189,7 +189,7 @@ static const int lm85_range_map[] = { 13300, 16000, 20000, 26600, 32000, 40000, 53300, 80000 }; -static int RANGE_TO_REG(int range) +static int RANGE_TO_REG(long range) { int i; @@ -211,7 +211,7 @@ static const int adm1027_freq_map[8] = { /* 1 Hz */ 11, 15, 22, 29, 35, 44, 59, 88 }; -static int FREQ_TO_REG(const int *map, int freq) +static int FREQ_TO_REG(const int *map, unsigned long freq) { int i; @@ -460,6 +460,9 @@ static ssize_t store_vrm_reg(struct device *dev, struct device_attribute *attr, if (err) return err; + if (val > 255) + return -EINVAL; + data->vrm = val; return count; } -- cgit v1.2.3 From 1074d683a51f1aded3562add9ef313e75d557327 Mon Sep 17 00:00:00 2001 From: Guenter Roeck Date: Tue, 29 Jul 2014 20:48:59 -0700 Subject: hwmon: (lm78) Fix overflow problems seen when writing large temperature limits On platforms with sizeof(int) < sizeof(long), writing a temperature limit larger than MAXINT will result in unpredictable limit values written to the chip. Avoid auto-conversion from long to int to fix the problem. Cc: Axel Lin Cc: stable@vger.kernel.org Reviewed-by: Axel Lin Signed-off-by: Guenter Roeck --- drivers/hwmon/lm78.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/hwmon/lm78.c b/drivers/hwmon/lm78.c index 9efadfc851bc..c1eb464f0fd0 100644 --- a/drivers/hwmon/lm78.c +++ b/drivers/hwmon/lm78.c @@ -108,7 +108,7 @@ static inline int FAN_FROM_REG(u8 val, int div) * TEMP: mC (-128C to +127C) * REG: 1C/bit, two's complement */ -static inline s8 TEMP_TO_REG(int val) +static inline s8 TEMP_TO_REG(long val) { int nval = clamp_val(val, -128000, 127000) ; return nval < 0 ? (nval - 500) / 1000 : (nval + 500) / 1000; -- cgit v1.2.3 From cf44819c98db11163f58f08b822d626c7a8f5188 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Thu, 31 Jul 2014 09:43:19 +0800 Subject: hwmon: (amc6821) Fix possible race condition bug Ensure mutex lock protects the read-modify-write period to prevent possible race condition bug. In additional, update data->valid should also be protected by the mutex lock. Signed-off-by: Axel Lin Cc: stable@vger.kernel.org Signed-off-by: Guenter Roeck --- drivers/hwmon/amc6821.c | 17 +++++++++++------ 1 file changed, 11 insertions(+), 6 deletions(-) diff --git a/drivers/hwmon/amc6821.c b/drivers/hwmon/amc6821.c index 9f2be3dd28f3..8a67ec6279a4 100644 --- a/drivers/hwmon/amc6821.c +++ b/drivers/hwmon/amc6821.c @@ -360,11 +360,13 @@ static ssize_t set_pwm1_enable( if (config) return config; + mutex_lock(&data->update_lock); config = i2c_smbus_read_byte_data(client, AMC6821_REG_CONF1); if (config < 0) { dev_err(&client->dev, "Error reading configuration register, aborting.\n"); - return config; + count = config; + goto unlock; } switch (val) { @@ -381,14 +383,15 @@ static ssize_t set_pwm1_enable( config |= AMC6821_CONF1_FDRC1; break; default: - return -EINVAL; + count = -EINVAL; + goto unlock; } - mutex_lock(&data->update_lock); if (i2c_smbus_write_byte_data(client, AMC6821_REG_CONF1, config)) { dev_err(&client->dev, "Configuration register write error, aborting.\n"); count = -EIO; } +unlock: mutex_unlock(&data->update_lock); return count; } @@ -493,8 +496,9 @@ static ssize_t set_temp_auto_point_temp( return -EINVAL; } - data->valid = 0; mutex_lock(&data->update_lock); + data->valid = 0; + switch (ix) { case 0: ptemp[0] = clamp_val(val / 1000, 0, @@ -658,13 +662,14 @@ static ssize_t set_fan1_div( if (config) return config; + mutex_lock(&data->update_lock); config = i2c_smbus_read_byte_data(client, AMC6821_REG_CONF4); if (config < 0) { dev_err(&client->dev, "Error reading configuration register, aborting.\n"); - return config; + count = config; + goto EXIT; } - mutex_lock(&data->update_lock); switch (val) { case 2: config &= ~AMC6821_CONF4_PSPR; -- cgit v1.2.3 From 99765db299f0b07093318395f789a716ed23fc95 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Thu, 31 Jul 2014 22:58:04 +0800 Subject: hwmon: (lm77) Prevent overflow problem when writing large limits On platforms with sizeof(int) < sizeof(long), writing a temperature limit larger than MAXINT will result in unpredictable limit values written to the chip. Clamp the input values to the supported limits first to fix the problem. For set_temp_hyst: As Guenter pointed out that the temperature is read as unsigned and stored in an unsigned long. This is wrong; nothing in the datasheet suggests that the value (the absolute temperature) must be positive. So change it to signed. Signed-off-by: Axel Lin Signed-off-by: Guenter Roeck --- drivers/hwmon/lm77.c | 11 ++++++----- 1 file changed, 6 insertions(+), 5 deletions(-) diff --git a/drivers/hwmon/lm77.c b/drivers/hwmon/lm77.c index 5ceb443b938d..69b05cc2f60e 100644 --- a/drivers/hwmon/lm77.c +++ b/drivers/hwmon/lm77.c @@ -80,8 +80,7 @@ struct lm77_data { */ static inline s16 LM77_TEMP_TO_REG(int temp) { - int ntemp = clamp_val(temp, LM77_TEMP_MIN, LM77_TEMP_MAX); - return (ntemp / 500) * 8; + return (temp / 500) * 8; } static inline int LM77_TEMP_FROM_REG(s16 reg) @@ -175,6 +174,7 @@ static ssize_t set_temp(struct device *dev, struct device_attribute *devattr, if (err) return err; + val = clamp_val(val, LM77_TEMP_MIN, LM77_TEMP_MAX); mutex_lock(&data->update_lock); data->temp[nr] = val; lm77_write_value(client, temp_regs[nr], LM77_TEMP_TO_REG(val)); @@ -192,15 +192,16 @@ static ssize_t set_temp_hyst(struct device *dev, { struct lm77_data *data = dev_get_drvdata(dev); struct i2c_client *client = data->client; - unsigned long val; + long val; int err; - err = kstrtoul(buf, 10, &val); + err = kstrtol(buf, 10, &val); if (err) return err; mutex_lock(&data->update_lock); - data->temp[t_hyst] = data->temp[t_crit] - val; + val = clamp_val(data->temp[t_crit] - val, LM77_TEMP_MIN, LM77_TEMP_MAX); + data->temp[t_hyst] = val; lm77_write_value(client, LM77_REG_TEMP_HYST, LM77_TEMP_TO_REG(data->temp[t_hyst])); mutex_unlock(&data->update_lock); -- cgit v1.2.3 From f4ff415564cbd1221e5bbac80f97ee94b7e5258d Mon Sep 17 00:00:00 2001 From: Scott Kanowitz Date: Thu, 12 Jun 2014 16:22:15 -0400 Subject: hwmon: Add support for Lattice's POWR1220 power manager IC This patch adds support for Lattice's POWR1220 power manager IC. Read access to all the ADCs on the chip are supported through the hwmon sysfs files. Signed-off-by: Scott Kanowitz [Guenter Roeck: Removed some extra ( )] Signed-off-by: Guenter Roeck --- Documentation/hwmon/powr1220 | 45 +++++ drivers/hwmon/Kconfig | 12 ++ drivers/hwmon/Makefile | 1 + drivers/hwmon/powr1220.c | 391 +++++++++++++++++++++++++++++++++++++++++++ 4 files changed, 449 insertions(+) create mode 100644 Documentation/hwmon/powr1220 create mode 100644 drivers/hwmon/powr1220.c diff --git a/Documentation/hwmon/powr1220 b/Documentation/hwmon/powr1220 new file mode 100644 index 000000000000..21e44f71ae6e --- /dev/null +++ b/Documentation/hwmon/powr1220 @@ -0,0 +1,45 @@ +Kernel driver powr1220 +================== + +Supported chips: + * Lattice POWR1220AT8 + Prefix: 'powr1220' + Addresses scanned: none + Datasheet: Publicly available at the Lattice website + http://www.latticesemi.com/ + +Author: Scott Kanowitz + +Description +----------- + +This driver supports the Lattice POWR1220AT8 chip. The POWR1220 +includes voltage monitoring for 14 inputs as well as trim settings +for output voltages and GPIOs. This driver implements the voltage +monitoring portion of the chip. + +Voltages are sampled by a 12-bit ADC with a step size of 2 mV. +An in-line attenuator allows measurements from 0 to 6 V. The +attenuator is enabled or disabled depending on the setting of the +input's max value. The driver will enable the attenuator for any +value over the low measurement range maximum of 2 V. + +The input naming convention is as follows: + +driver name pin name +in0 VMON1 +in1 VMON2 +in2 VMON3 +in2 VMON4 +in4 VMON5 +in5 VMON6 +in6 VMON7 +in7 VMON8 +in8 VMON9 +in9 VMON10 +in10 VMON11 +in11 VMON12 +in12 VCCA +in13 VCCINP + +The ADC readings are updated on request with a minimum period of 1s. diff --git a/drivers/hwmon/Kconfig b/drivers/hwmon/Kconfig index 02d3d85829f3..d8410df01fd2 100644 --- a/drivers/hwmon/Kconfig +++ b/drivers/hwmon/Kconfig @@ -608,6 +608,18 @@ config SENSORS_JC42 This driver can also be built as a module. If so, the module will be called jc42. +config SENSORS_POWR1220 + tristate "Lattice POWR1220 Power Monitoring" + depends on I2C + default n + help + If you say yes here you get access to the hardware monitoring + functions of the Lattice POWR1220 isp Power Supply Monitoring, + Sequencing and Margining Controller. + + This driver can also be built as a module. If so, the module + will be called powr1220. + config SENSORS_LINEAGE tristate "Lineage Compact Power Line Power Entry Module" depends on I2C diff --git a/drivers/hwmon/Makefile b/drivers/hwmon/Makefile index 3dc0f02f71d2..b5914d8f770c 100644 --- a/drivers/hwmon/Makefile +++ b/drivers/hwmon/Makefile @@ -120,6 +120,7 @@ obj-$(CONFIG_SENSORS_NTC_THERMISTOR) += ntc_thermistor.o obj-$(CONFIG_SENSORS_PC87360) += pc87360.o obj-$(CONFIG_SENSORS_PC87427) += pc87427.o obj-$(CONFIG_SENSORS_PCF8591) += pcf8591.o +obj-$(CONFIG_SENSORS_POWR1220) += powr1220.o obj-$(CONFIG_SENSORS_S3C) += s3c-hwmon.o obj-$(CONFIG_SENSORS_SCH56XX_COMMON)+= sch56xx-common.o obj-$(CONFIG_SENSORS_SCH5627) += sch5627.o diff --git a/drivers/hwmon/powr1220.c b/drivers/hwmon/powr1220.c new file mode 100644 index 000000000000..3014e4ac741e --- /dev/null +++ b/drivers/hwmon/powr1220.c @@ -0,0 +1,391 @@ +/* + * powr1220.c - Driver for the Lattice POWR1220 programmable power supply + * and monitor. Users can read all ADC inputs along with their labels + * using the sysfs nodes. + * + * Copyright (c) 2014 Echo360 http://www.echo360.com + * Scott Kanowitz + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#define ADC_STEP_MV 2 +#define ADC_MAX_LOW_MEASUREMENT_MV 2000 + +enum powr1220_regs { + VMON_STATUS0, + VMON_STATUS1, + VMON_STATUS2, + OUTPUT_STATUS0, + OUTPUT_STATUS1, + OUTPUT_STATUS2, + INPUT_STATUS, + ADC_VALUE_LOW, + ADC_VALUE_HIGH, + ADC_MUX, + UES_BYTE0, + UES_BYTE1, + UES_BYTE2, + UES_BYTE3, + GP_OUTPUT1, + GP_OUTPUT2, + GP_OUTPUT3, + INPUT_VALUE, + RESET, + TRIM1_TRIM, + TRIM2_TRIM, + TRIM3_TRIM, + TRIM4_TRIM, + TRIM5_TRIM, + TRIM6_TRIM, + TRIM7_TRIM, + TRIM8_TRIM, + MAX_POWR1220_REGS +}; + +enum powr1220_adc_values { + VMON1, + VMON2, + VMON3, + VMON4, + VMON5, + VMON6, + VMON7, + VMON8, + VMON9, + VMON10, + VMON11, + VMON12, + VCCA, + VCCINP, + MAX_POWR1220_ADC_VALUES +}; + +struct powr1220_data { + struct i2c_client *client; + struct mutex update_lock; + bool adc_valid[MAX_POWR1220_ADC_VALUES]; + /* the next value is in jiffies */ + unsigned long adc_last_updated[MAX_POWR1220_ADC_VALUES]; + + /* values */ + int adc_maxes[MAX_POWR1220_ADC_VALUES]; + int adc_values[MAX_POWR1220_ADC_VALUES]; +}; + +static const char * const input_names[] = { + [VMON1] = "vmon1", + [VMON2] = "vmon2", + [VMON3] = "vmon3", + [VMON4] = "vmon4", + [VMON5] = "vmon5", + [VMON6] = "vmon6", + [VMON7] = "vmon7", + [VMON8] = "vmon8", + [VMON9] = "vmon9", + [VMON10] = "vmon10", + [VMON11] = "vmon11", + [VMON12] = "vmon12", + [VCCA] = "vcca", + [VCCINP] = "vccinp", +}; + +/* Reads the specified ADC channel */ +static int powr1220_read_adc(struct device *dev, int ch_num) +{ + struct powr1220_data *data = dev_get_drvdata(dev); + int reading; + int result; + int adc_range = 0; + + mutex_lock(&data->update_lock); + + if (time_after(jiffies, data->adc_last_updated[ch_num] + HZ) || + !data->adc_valid[ch_num]) { + /* + * figure out if we need to use the attenuator for + * high inputs or inputs that we don't yet have a measurement + * for. We dynamically set the attenuator depending on the + * max reading. + */ + if (data->adc_maxes[ch_num] > ADC_MAX_LOW_MEASUREMENT_MV || + data->adc_maxes[ch_num] == 0) + adc_range = 1 << 4; + + /* set the attenuator and mux */ + result = i2c_smbus_write_byte_data(data->client, ADC_MUX, + adc_range | ch_num); + if (result) + goto exit; + + /* + * wait at least Tconvert time (200 us) for the + * conversion to complete + */ + udelay(200); + + /* get the ADC reading */ + result = i2c_smbus_read_byte_data(data->client, ADC_VALUE_LOW); + if (result < 0) + goto exit; + + reading = result >> 4; + + /* get the upper half of the reading */ + result = i2c_smbus_read_byte_data(data->client, ADC_VALUE_HIGH); + if (result < 0) + goto exit; + + reading |= result << 4; + + /* now convert the reading to a voltage */ + reading *= ADC_STEP_MV; + data->adc_values[ch_num] = reading; + data->adc_valid[ch_num] = true; + data->adc_last_updated[ch_num] = jiffies; + result = reading; + + if (reading > data->adc_maxes[ch_num]) + data->adc_maxes[ch_num] = reading; + } else { + result = data->adc_values[ch_num]; + } + +exit: + mutex_unlock(&data->update_lock); + + return result; +} + +/* Shows the voltage associated with the specified ADC channel */ +static ssize_t powr1220_show_voltage(struct device *dev, + struct device_attribute *dev_attr, char *buf) +{ + struct sensor_device_attribute *attr = to_sensor_dev_attr(dev_attr); + int adc_val = powr1220_read_adc(dev, attr->index); + + if (adc_val < 0) + return adc_val; + + return sprintf(buf, "%d\n", adc_val); +} + +/* Shows the maximum setting associated with the specified ADC channel */ +static ssize_t powr1220_show_max(struct device *dev, + struct device_attribute *dev_attr, char *buf) +{ + struct sensor_device_attribute *attr = to_sensor_dev_attr(dev_attr); + struct powr1220_data *data = dev_get_drvdata(dev); + + return sprintf(buf, "%d\n", data->adc_maxes[attr->index]); +} + +/* Shows the label associated with the specified ADC channel */ +static ssize_t powr1220_show_label(struct device *dev, + struct device_attribute *dev_attr, char *buf) +{ + struct sensor_device_attribute *attr = to_sensor_dev_attr(dev_attr); + + return sprintf(buf, "%s\n", input_names[attr->index]); +} + +static SENSOR_DEVICE_ATTR(in0_input, S_IRUGO, powr1220_show_voltage, NULL, + VMON1); +static SENSOR_DEVICE_ATTR(in1_input, S_IRUGO, powr1220_show_voltage, NULL, + VMON2); +static SENSOR_DEVICE_ATTR(in2_input, S_IRUGO, powr1220_show_voltage, NULL, + VMON3); +static SENSOR_DEVICE_ATTR(in3_input, S_IRUGO, powr1220_show_voltage, NULL, + VMON4); +static SENSOR_DEVICE_ATTR(in4_input, S_IRUGO, powr1220_show_voltage, NULL, + VMON5); +static SENSOR_DEVICE_ATTR(in5_input, S_IRUGO, powr1220_show_voltage, NULL, + VMON6); +static SENSOR_DEVICE_ATTR(in6_input, S_IRUGO, powr1220_show_voltage, NULL, + VMON7); +static SENSOR_DEVICE_ATTR(in7_input, S_IRUGO, powr1220_show_voltage, NULL, + VMON8); +static SENSOR_DEVICE_ATTR(in8_input, S_IRUGO, powr1220_show_voltage, NULL, + VMON9); +static SENSOR_DEVICE_ATTR(in9_input, S_IRUGO, powr1220_show_voltage, NULL, + VMON10); +static SENSOR_DEVICE_ATTR(in10_input, S_IRUGO, powr1220_show_voltage, NULL, + VMON11); +static SENSOR_DEVICE_ATTR(in11_input, S_IRUGO, powr1220_show_voltage, NULL, + VMON12); +static SENSOR_DEVICE_ATTR(in12_input, S_IRUGO, powr1220_show_voltage, NULL, + VCCA); +static SENSOR_DEVICE_ATTR(in13_input, S_IRUGO, powr1220_show_voltage, NULL, + VCCINP); + +static SENSOR_DEVICE_ATTR(in0_highest, S_IRUGO, powr1220_show_max, NULL, + VMON1); +static SENSOR_DEVICE_ATTR(in1_highest, S_IRUGO, powr1220_show_max, NULL, + VMON2); +static SENSOR_DEVICE_ATTR(in2_highest, S_IRUGO, powr1220_show_max, NULL, + VMON3); +static SENSOR_DEVICE_ATTR(in3_highest, S_IRUGO, powr1220_show_max, NULL, + VMON4); +static SENSOR_DEVICE_ATTR(in4_highest, S_IRUGO, powr1220_show_max, NULL, + VMON5); +static SENSOR_DEVICE_ATTR(in5_highest, S_IRUGO, powr1220_show_max, NULL, + VMON6); +static SENSOR_DEVICE_ATTR(in6_highest, S_IRUGO, powr1220_show_max, NULL, + VMON7); +static SENSOR_DEVICE_ATTR(in7_highest, S_IRUGO, powr1220_show_max, NULL, + VMON8); +static SENSOR_DEVICE_ATTR(in8_highest, S_IRUGO, powr1220_show_max, NULL, + VMON9); +static SENSOR_DEVICE_ATTR(in9_highest, S_IRUGO, powr1220_show_max, NULL, + VMON10); +static SENSOR_DEVICE_ATTR(in10_highest, S_IRUGO, powr1220_show_max, NULL, + VMON11); +static SENSOR_DEVICE_ATTR(in11_highest, S_IRUGO, powr1220_show_max, NULL, + VMON12); +static SENSOR_DEVICE_ATTR(in12_highest, S_IRUGO, powr1220_show_max, NULL, + VCCA); +static SENSOR_DEVICE_ATTR(in13_highest, S_IRUGO, powr1220_show_max, NULL, + VCCINP); + +static SENSOR_DEVICE_ATTR(in0_label, S_IRUGO, powr1220_show_label, NULL, + VMON1); +static SENSOR_DEVICE_ATTR(in1_label, S_IRUGO, powr1220_show_label, NULL, + VMON2); +static SENSOR_DEVICE_ATTR(in2_label, S_IRUGO, powr1220_show_label, NULL, + VMON3); +static SENSOR_DEVICE_ATTR(in3_label, S_IRUGO, powr1220_show_label, NULL, + VMON4); +static SENSOR_DEVICE_ATTR(in4_label, S_IRUGO, powr1220_show_label, NULL, + VMON5); +static SENSOR_DEVICE_ATTR(in5_label, S_IRUGO, powr1220_show_label, NULL, + VMON6); +static SENSOR_DEVICE_ATTR(in6_label, S_IRUGO, powr1220_show_label, NULL, + VMON7); +static SENSOR_DEVICE_ATTR(in7_label, S_IRUGO, powr1220_show_label, NULL, + VMON8); +static SENSOR_DEVICE_ATTR(in8_label, S_IRUGO, powr1220_show_label, NULL, + VMON9); +static SENSOR_DEVICE_ATTR(in9_label, S_IRUGO, powr1220_show_label, NULL, + VMON10); +static SENSOR_DEVICE_ATTR(in10_label, S_IRUGO, powr1220_show_label, NULL, + VMON11); +static SENSOR_DEVICE_ATTR(in11_label, S_IRUGO, powr1220_show_label, NULL, + VMON12); +static SENSOR_DEVICE_ATTR(in12_label, S_IRUGO, powr1220_show_label, NULL, + VCCA); +static SENSOR_DEVICE_ATTR(in13_label, S_IRUGO, powr1220_show_label, NULL, + VCCINP); + +static struct attribute *powr1220_attrs[] = { + &sensor_dev_attr_in0_input.dev_attr.attr, + &sensor_dev_attr_in1_input.dev_attr.attr, + &sensor_dev_attr_in2_input.dev_attr.attr, + &sensor_dev_attr_in3_input.dev_attr.attr, + &sensor_dev_attr_in4_input.dev_attr.attr, + &sensor_dev_attr_in5_input.dev_attr.attr, + &sensor_dev_attr_in6_input.dev_attr.attr, + &sensor_dev_attr_in7_input.dev_attr.attr, + &sensor_dev_attr_in8_input.dev_attr.attr, + &sensor_dev_attr_in9_input.dev_attr.attr, + &sensor_dev_attr_in10_input.dev_attr.attr, + &sensor_dev_attr_in11_input.dev_attr.attr, + &sensor_dev_attr_in12_input.dev_attr.attr, + &sensor_dev_attr_in13_input.dev_attr.attr, + + &sensor_dev_attr_in0_highest.dev_attr.attr, + &sensor_dev_attr_in1_highest.dev_attr.attr, + &sensor_dev_attr_in2_highest.dev_attr.attr, + &sensor_dev_attr_in3_highest.dev_attr.attr, + &sensor_dev_attr_in4_highest.dev_attr.attr, + &sensor_dev_attr_in5_highest.dev_attr.attr, + &sensor_dev_attr_in6_highest.dev_attr.attr, + &sensor_dev_attr_in7_highest.dev_attr.attr, + &sensor_dev_attr_in8_highest.dev_attr.attr, + &sensor_dev_attr_in9_highest.dev_attr.attr, + &sensor_dev_attr_in10_highest.dev_attr.attr, + &sensor_dev_attr_in11_highest.dev_attr.attr, + &sensor_dev_attr_in12_highest.dev_attr.attr, + &sensor_dev_attr_in13_highest.dev_attr.attr, + + &sensor_dev_attr_in0_label.dev_attr.attr, + &sensor_dev_attr_in1_label.dev_attr.attr, + &sensor_dev_attr_in2_label.dev_attr.attr, + &sensor_dev_attr_in3_label.dev_attr.attr, + &sensor_dev_attr_in4_label.dev_attr.attr, + &sensor_dev_attr_in5_label.dev_attr.attr, + &sensor_dev_attr_in6_label.dev_attr.attr, + &sensor_dev_attr_in7_label.dev_attr.attr, + &sensor_dev_attr_in8_label.dev_attr.attr, + &sensor_dev_attr_in9_label.dev_attr.attr, + &sensor_dev_attr_in10_label.dev_attr.attr, + &sensor_dev_attr_in11_label.dev_attr.attr, + &sensor_dev_attr_in12_label.dev_attr.attr, + &sensor_dev_attr_in13_label.dev_attr.attr, + + NULL +}; + +ATTRIBUTE_GROUPS(powr1220); + +static int powr1220_probe(struct i2c_client *client, + const struct i2c_device_id *id) +{ + struct powr1220_data *data; + struct device *hwmon_dev; + + if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA)) + return -ENODEV; + + data = devm_kzalloc(&client->dev, sizeof(*data), GFP_KERNEL); + if (!data) + return -ENOMEM; + + mutex_init(&data->update_lock); + data->client = client; + + hwmon_dev = devm_hwmon_device_register_with_groups(&client->dev, + client->name, data, powr1220_groups); + + return PTR_ERR_OR_ZERO(hwmon_dev); +} + +static const struct i2c_device_id powr1220_ids[] = { + { "powr1220", 0, }, + { } +}; + +MODULE_DEVICE_TABLE(i2c, powr1220_ids); + +static struct i2c_driver powr1220_driver = { + .class = I2C_CLASS_HWMON, + .driver = { + .name = "powr1220", + }, + .probe = powr1220_probe, + .id_table = powr1220_ids, +}; + +module_i2c_driver(powr1220_driver); + +MODULE_AUTHOR("Scott Kanowitz"); +MODULE_DESCRIPTION("POWR1220 driver"); +MODULE_LICENSE("GPL"); -- cgit v1.2.3 From 5495af5f3e6e2cce34a2c22ecd8b1a94e93c184a Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Sat, 14 Jun 2014 14:33:24 +0800 Subject: hwmon: (twl4030-madc-hwmon) Convert to devm_hwmon_device_register_with_groups Use ATTRIBUTE_GROUPS macro and devm_hwmon_device_register_with_groups() to simplify the code a bit. Signed-off-by: Axel Lin Signed-off-by: Guenter Roeck --- drivers/hwmon/twl4030-madc-hwmon.c | 38 ++++++-------------------------------- 1 file changed, 6 insertions(+), 32 deletions(-) diff --git a/drivers/hwmon/twl4030-madc-hwmon.c b/drivers/hwmon/twl4030-madc-hwmon.c index 6c6d440bb2dd..9a0e2b8e8b94 100644 --- a/drivers/hwmon/twl4030-madc-hwmon.c +++ b/drivers/hwmon/twl4030-madc-hwmon.c @@ -74,7 +74,7 @@ static SENSOR_DEVICE_ATTR(in11_input, S_IRUGO, madc_read, NULL, 11); static SENSOR_DEVICE_ATTR(in12_input, S_IRUGO, madc_read, NULL, 12); static SENSOR_DEVICE_ATTR(in15_input, S_IRUGO, madc_read, NULL, 15); -static struct attribute *twl4030_madc_attributes[] = { +static struct attribute *twl4030_madc_attrs[] = { &sensor_dev_attr_in0_input.dev_attr.attr, &sensor_dev_attr_temp1_input.dev_attr.attr, &sensor_dev_attr_in2_input.dev_attr.attr, @@ -91,46 +91,20 @@ static struct attribute *twl4030_madc_attributes[] = { &sensor_dev_attr_in15_input.dev_attr.attr, NULL }; - -static const struct attribute_group twl4030_madc_group = { - .attrs = twl4030_madc_attributes, -}; +ATTRIBUTE_GROUPS(twl4030_madc); static int twl4030_madc_hwmon_probe(struct platform_device *pdev) { - int ret; struct device *hwmon; - ret = sysfs_create_group(&pdev->dev.kobj, &twl4030_madc_group); - if (ret) - goto err_sysfs; - hwmon = hwmon_device_register(&pdev->dev); - if (IS_ERR(hwmon)) { - dev_err(&pdev->dev, "hwmon_device_register failed.\n"); - ret = PTR_ERR(hwmon); - goto err_reg; - } - - return 0; - -err_reg: - sysfs_remove_group(&pdev->dev.kobj, &twl4030_madc_group); -err_sysfs: - - return ret; -} - -static int twl4030_madc_hwmon_remove(struct platform_device *pdev) -{ - hwmon_device_unregister(&pdev->dev); - sysfs_remove_group(&pdev->dev.kobj, &twl4030_madc_group); - - return 0; + hwmon = devm_hwmon_device_register_with_groups(&pdev->dev, + "twl4030_madc", NULL, + twl4030_madc_groups); + return PTR_ERR_OR_ZERO(hwmon); } static struct platform_driver twl4030_madc_hwmon_driver = { .probe = twl4030_madc_hwmon_probe, - .remove = twl4030_madc_hwmon_remove, .driver = { .name = "twl4030_madc_hwmon", .owner = THIS_MODULE, -- cgit v1.2.3 From 49153b092ceb099a5f38a645e3c40b4bd4e28a82 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Sat, 14 Jun 2014 14:50:50 +0800 Subject: hwmon: (gpio-fan) Convert to devm_hwmon_device_register_with_groups This simplifies the code a bit and also ensures the attribute groups are properly removed from sysfs when unload the module. Signed-off-by: Axel Lin Signed-off-by: Guenter Roeck --- drivers/hwmon/gpio-fan.c | 17 ++++------------- 1 file changed, 4 insertions(+), 13 deletions(-) diff --git a/drivers/hwmon/gpio-fan.c b/drivers/hwmon/gpio-fan.c index 2566c43dd1e9..a43e5b004eb8 100644 --- a/drivers/hwmon/gpio-fan.c +++ b/drivers/hwmon/gpio-fan.c @@ -537,9 +537,10 @@ static int gpio_fan_probe(struct platform_device *pdev) } /* Make this driver part of hwmon class. */ - fan_data->hwmon_dev = hwmon_device_register_with_groups(&pdev->dev, - "gpio_fan", fan_data, - gpio_fan_groups); + fan_data->hwmon_dev = + devm_hwmon_device_register_with_groups(&pdev->dev, + "gpio_fan", fan_data, + gpio_fan_groups); if (IS_ERR(fan_data->hwmon_dev)) return PTR_ERR(fan_data->hwmon_dev); @@ -548,15 +549,6 @@ static int gpio_fan_probe(struct platform_device *pdev) return 0; } -static int gpio_fan_remove(struct platform_device *pdev) -{ - struct gpio_fan_data *fan_data = platform_get_drvdata(pdev); - - hwmon_device_unregister(fan_data->hwmon_dev); - - return 0; -} - #ifdef CONFIG_PM_SLEEP static int gpio_fan_suspend(struct device *dev) { @@ -588,7 +580,6 @@ static SIMPLE_DEV_PM_OPS(gpio_fan_pm, gpio_fan_suspend, gpio_fan_resume); static struct platform_driver gpio_fan_driver = { .probe = gpio_fan_probe, - .remove = gpio_fan_remove, .driver = { .name = "gpio-fan", .pm = GPIO_FAN_PM, -- cgit v1.2.3 From d17a7dca04b23586f6c284f98196fbe0ac7607a8 Mon Sep 17 00:00:00 2001 From: Heiko Schocher Date: Wed, 18 Jun 2014 07:37:17 +0200 Subject: hwmon: Driver for TI TMP103 temperature sensor Driver for the TI TMP103. The TI TMP103 is similar to the TMP102. It differs from the TMP102 by having only 8 bit registers. Signed-off-by: Heiko Schocher [linux@roeck-us.net: Select REGMAP_I2C in Kconfig] Signed-off-by: Guenter Roeck --- .../devicetree/bindings/i2c/trivial-devices.txt | 1 + Documentation/hwmon/tmp103 | 28 +++ drivers/hwmon/Kconfig | 11 ++ drivers/hwmon/Makefile | 1 + drivers/hwmon/tmp103.c | 205 +++++++++++++++++++++ 5 files changed, 246 insertions(+) create mode 100644 Documentation/hwmon/tmp103 create mode 100644 drivers/hwmon/tmp103.c diff --git a/Documentation/devicetree/bindings/i2c/trivial-devices.txt b/Documentation/devicetree/bindings/i2c/trivial-devices.txt index bef86e57c388..fc944e0ed039 100644 --- a/Documentation/devicetree/bindings/i2c/trivial-devices.txt +++ b/Documentation/devicetree/bindings/i2c/trivial-devices.txt @@ -83,5 +83,6 @@ stm,m41t80 M41T80 - SERIAL ACCESS RTC WITH ALARMS taos,tsl2550 Ambient Light Sensor with SMBUS/Two Wire Serial Interface ti,tsc2003 I2C Touch-Screen Controller ti,tmp102 Low Power Digital Temperature Sensor with SMBUS/Two Wire Serial Interface +ti,tmp103 Low Power Digital Temperature Sensor with SMBUS/Two Wire Serial Interface ti,tmp275 Digital Temperature Sensor winbond,wpct301 i2c trusted platform module (TPM) diff --git a/Documentation/hwmon/tmp103 b/Documentation/hwmon/tmp103 new file mode 100644 index 000000000000..ec00a15645ba --- /dev/null +++ b/Documentation/hwmon/tmp103 @@ -0,0 +1,28 @@ +Kernel driver tmp103 +==================== + +Supported chips: + * Texas Instruments TMP103 + Prefix: 'tmp103' + Addresses scanned: none + Product info and datasheet: http://www.ti.com/product/tmp103 + +Author: + Heiko Schocher + +Description +----------- + +The TMP103 is a digital output temperature sensor in a four-ball +wafer chip-scale package (WCSP). The TMP103 is capable of reading +temperatures to a resolution of 1°C. The TMP103 is specified for +operation over a temperature range of –40°C to +125°C. + +Resolution: 8 Bits +Accuracy: ±1°C Typ (–10°C to +100°C) + +The driver provides the common sysfs-interface for temperatures (see +Documentation/hwmon/sysfs-interface under Temperatures). + +Please refer how to instantiate this driver: +Documentation/i2c/instantiating-devices diff --git a/drivers/hwmon/Kconfig b/drivers/hwmon/Kconfig index d8410df01fd2..a01a166e511b 100644 --- a/drivers/hwmon/Kconfig +++ b/drivers/hwmon/Kconfig @@ -1405,6 +1405,17 @@ config SENSORS_TMP102 This driver can also be built as a module. If so, the module will be called tmp102. +config SENSORS_TMP103 + tristate "Texas Instruments TMP103" + depends on I2C + select REGMAP_I2C + help + If you say yes here you get support for Texas Instruments TMP103 + sensor chips. + + This driver can also be built as a module. If so, the module + will be called tmp103. + config SENSORS_TMP401 tristate "Texas Instruments TMP401 and compatibles" depends on I2C diff --git a/drivers/hwmon/Makefile b/drivers/hwmon/Makefile index b5914d8f770c..1362382a3187 100644 --- a/drivers/hwmon/Makefile +++ b/drivers/hwmon/Makefile @@ -136,6 +136,7 @@ obj-$(CONFIG_SENSORS_SMSC47M192)+= smsc47m192.o obj-$(CONFIG_SENSORS_AMC6821) += amc6821.o obj-$(CONFIG_SENSORS_THMC50) += thmc50.o obj-$(CONFIG_SENSORS_TMP102) += tmp102.o +obj-$(CONFIG_SENSORS_TMP103) += tmp103.o obj-$(CONFIG_SENSORS_TMP401) += tmp401.o obj-$(CONFIG_SENSORS_TMP421) += tmp421.o obj-$(CONFIG_SENSORS_TWL4030_MADC)+= twl4030-madc-hwmon.o diff --git a/drivers/hwmon/tmp103.c b/drivers/hwmon/tmp103.c new file mode 100644 index 000000000000..e69dbcacac89 --- /dev/null +++ b/drivers/hwmon/tmp103.c @@ -0,0 +1,205 @@ +/* + * Texas Instruments TMP103 SMBus temperature sensor driver + * Copyright (C) 2014 Heiko Schocher + * + * Based on: + * Texas Instruments TMP102 SMBus temperature sensor driver + * + * Copyright (C) 2010 Steven King + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#define TMP103_TEMP_REG 0x00 +#define TMP103_CONF_REG 0x01 +#define TMP103_TLOW_REG 0x02 +#define TMP103_THIGH_REG 0x03 + +#define TMP103_CONF_M0 0x01 +#define TMP103_CONF_M1 0x02 +#define TMP103_CONF_LC 0x04 +#define TMP103_CONF_FL 0x08 +#define TMP103_CONF_FH 0x10 +#define TMP103_CONF_CR0 0x20 +#define TMP103_CONF_CR1 0x40 +#define TMP103_CONF_ID 0x80 +#define TMP103_CONF_SD (TMP103_CONF_M1) +#define TMP103_CONF_SD_MASK (TMP103_CONF_M0 | TMP103_CONF_M1) + +#define TMP103_CONFIG (TMP103_CONF_CR1 | TMP103_CONF_M1) +#define TMP103_CONFIG_MASK (TMP103_CONF_CR0 | TMP103_CONF_CR1 | \ + TMP103_CONF_M0 | TMP103_CONF_M1) + +static inline int tmp103_reg_to_mc(s8 val) +{ + return val * 1000; +} + +static inline u8 tmp103_mc_to_reg(int val) +{ + return DIV_ROUND_CLOSEST(val, 1000); +} + +static ssize_t tmp103_show_temp(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + struct sensor_device_attribute *sda = to_sensor_dev_attr(attr); + struct regmap *regmap = dev_get_drvdata(dev); + unsigned int regval; + int ret; + + ret = regmap_read(regmap, sda->index, ®val); + if (ret < 0) + return ret; + + return sprintf(buf, "%d\n", tmp103_reg_to_mc(regval)); +} + +static ssize_t tmp103_set_temp(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t count) +{ + struct sensor_device_attribute *sda = to_sensor_dev_attr(attr); + struct regmap *regmap = dev_get_drvdata(dev); + long val; + int ret; + + if (kstrtol(buf, 10, &val) < 0) + return -EINVAL; + + val = clamp_val(val, -55000, 127000); + ret = regmap_write(regmap, sda->index, tmp103_mc_to_reg(val)); + return ret ? ret : count; +} + +static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, tmp103_show_temp, NULL , + TMP103_TEMP_REG); + +static SENSOR_DEVICE_ATTR(temp1_min, S_IWUSR | S_IRUGO, tmp103_show_temp, + tmp103_set_temp, TMP103_TLOW_REG); + +static SENSOR_DEVICE_ATTR(temp1_max, S_IWUSR | S_IRUGO, tmp103_show_temp, + tmp103_set_temp, TMP103_THIGH_REG); + +static struct attribute *tmp103_attrs[] = { + &sensor_dev_attr_temp1_input.dev_attr.attr, + &sensor_dev_attr_temp1_min.dev_attr.attr, + &sensor_dev_attr_temp1_max.dev_attr.attr, + NULL +}; +ATTRIBUTE_GROUPS(tmp103); + +static bool tmp103_regmap_is_volatile(struct device *dev, unsigned int reg) +{ + return reg == TMP103_TEMP_REG; +} + +static struct regmap_config tmp103_regmap_config = { + .reg_bits = 8, + .val_bits = 8, + .max_register = TMP103_THIGH_REG, + .volatile_reg = tmp103_regmap_is_volatile, +}; + +static int tmp103_probe(struct i2c_client *client, + const struct i2c_device_id *id) +{ + struct device *dev = &client->dev; + struct device *hwmon_dev; + struct regmap *regmap; + int ret; + + if (!i2c_check_functionality(client->adapter, + I2C_FUNC_SMBUS_BYTE_DATA)) { + dev_err(&client->dev, + "adapter doesn't support SMBus byte transactions\n"); + return -ENODEV; + } + + regmap = devm_regmap_init_i2c(client, &tmp103_regmap_config); + if (IS_ERR(regmap)) { + dev_err(dev, "failed to allocate register map\n"); + return PTR_ERR(regmap); + } + + ret = regmap_update_bits(regmap, TMP103_CONF_REG, TMP103_CONFIG_MASK, + TMP103_CONFIG); + if (ret < 0) { + dev_err(&client->dev, "error writing config register\n"); + return ret; + } + + hwmon_dev = hwmon_device_register_with_groups(dev, client->name, + regmap, tmp103_groups); + return PTR_ERR_OR_ZERO(hwmon_dev); +} + +#ifdef CONFIG_PM +static int tmp103_suspend(struct device *dev) +{ + struct regmap *regmap = dev_get_drvdata(dev); + + return regmap_update_bits(regmap, TMP103_CONF_REG, + TMP103_CONF_SD_MASK, 0); +} + +static int tmp103_resume(struct device *dev) +{ + struct regmap *regmap = dev_get_drvdata(dev); + + return regmap_update_bits(regmap, TMP103_CONF_REG, + TMP103_CONF_SD_MASK, TMP103_CONF_SD); +} + +static const struct dev_pm_ops tmp103_dev_pm_ops = { + .suspend = tmp103_suspend, + .resume = tmp103_resume, +}; + +#define TMP103_DEV_PM_OPS (&tmp103_dev_pm_ops) +#else +#define TMP103_DEV_PM_OPS NULL +#endif /* CONFIG_PM */ + +static const struct i2c_device_id tmp103_id[] = { + { "tmp103", 0 }, + { } +}; +MODULE_DEVICE_TABLE(i2c, tmp103_id); + +static struct i2c_driver tmp103_driver = { + .driver = { + .name = "tmp103", + .pm = TMP103_DEV_PM_OPS, + }, + .probe = tmp103_probe, + .id_table = tmp103_id, +}; + +module_i2c_driver(tmp103_driver); + +MODULE_AUTHOR("Heiko Schocher "); +MODULE_DESCRIPTION("Texas Instruments TMP103 temperature sensor driver"); +MODULE_LICENSE("GPL"); -- cgit v1.2.3 From 11f7e494fd726c119c6f576b4cf1dc09e9f665b8 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Sat, 7 Jun 2014 07:55:10 +0800 Subject: hwmon: (atxp1) Convert to devm_hwmon_device_register_with_groups Use ATTRIBUTE_GROUPS macro and devm_hwmon_device_register_with_groups. This simplifies the code a bit. Signed-off-by: Axel Lin Signed-off-by: Guenter Roeck --- drivers/hwmon/atxp1.c | 76 ++++++++++++++------------------------------------- 1 file changed, 21 insertions(+), 55 deletions(-) diff --git a/drivers/hwmon/atxp1.c b/drivers/hwmon/atxp1.c index 2ae8a304b5ef..4c829bb2f9db 100644 --- a/drivers/hwmon/atxp1.c +++ b/drivers/hwmon/atxp1.c @@ -46,7 +46,7 @@ MODULE_AUTHOR("Sebastian Witt "); static const unsigned short normal_i2c[] = { 0x37, 0x4e, I2C_CLIENT_END }; struct atxp1_data { - struct device *hwmon_dev; + struct i2c_client *client; struct mutex update_lock; unsigned long last_updated; u8 valid; @@ -61,11 +61,8 @@ struct atxp1_data { static struct atxp1_data *atxp1_update_device(struct device *dev) { - struct i2c_client *client; - struct atxp1_data *data; - - client = to_i2c_client(dev); - data = i2c_get_clientdata(client); + struct atxp1_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; mutex_lock(&data->update_lock); @@ -105,15 +102,12 @@ static ssize_t atxp1_storevcore(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { - struct atxp1_data *data; - struct i2c_client *client; + struct atxp1_data *data = atxp1_update_device(dev); + struct i2c_client *client = data->client; int vid, cvid; unsigned long vcore; int err; - client = to_i2c_client(dev); - data = atxp1_update_device(dev); - err = kstrtoul(buf, 10, &vcore); if (err) return err; @@ -184,14 +178,11 @@ static ssize_t atxp1_storegpio1(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { - struct atxp1_data *data; - struct i2c_client *client; + struct atxp1_data *data = atxp1_update_device(dev); + struct i2c_client *client = data->client; unsigned long value; int err; - client = to_i2c_client(dev); - data = atxp1_update_device(dev); - err = kstrtoul(buf, 16, &value); if (err) return err; @@ -234,7 +225,7 @@ static ssize_t atxp1_storegpio2(struct device *dev, const char *buf, size_t count) { struct atxp1_data *data = atxp1_update_device(dev); - struct i2c_client *client = to_i2c_client(dev); + struct i2c_client *client = data->client; unsigned long value; int err; @@ -260,17 +251,13 @@ static ssize_t atxp1_storegpio2(struct device *dev, */ static DEVICE_ATTR(gpio2, S_IRUGO | S_IWUSR, atxp1_showgpio2, atxp1_storegpio2); -static struct attribute *atxp1_attributes[] = { +static struct attribute *atxp1_attrs[] = { &dev_attr_gpio1.attr, &dev_attr_gpio2.attr, &dev_attr_cpu0_vid.attr, NULL }; - -static const struct attribute_group atxp1_group = { - .attrs = atxp1_attributes, -}; - +ATTRIBUTE_GROUPS(atxp1); /* Return 0 if detection is successful, -ENODEV otherwise */ static int atxp1_detect(struct i2c_client *new_client, @@ -314,50 +301,30 @@ static int atxp1_detect(struct i2c_client *new_client, return 0; } -static int atxp1_probe(struct i2c_client *new_client, +static int atxp1_probe(struct i2c_client *client, const struct i2c_device_id *id) { + struct device *dev = &client->dev; struct atxp1_data *data; - int err; + struct device *hwmon_dev; - data = devm_kzalloc(&new_client->dev, sizeof(struct atxp1_data), - GFP_KERNEL); + data = devm_kzalloc(dev, sizeof(struct atxp1_data), GFP_KERNEL); if (!data) return -ENOMEM; /* Get VRM */ data->vrm = vid_which_vrm(); - i2c_set_clientdata(new_client, data); + data->client = client; mutex_init(&data->update_lock); - /* Register sysfs hooks */ - err = sysfs_create_group(&new_client->dev.kobj, &atxp1_group); - if (err) - return err; - - data->hwmon_dev = hwmon_device_register(&new_client->dev); - if (IS_ERR(data->hwmon_dev)) { - err = PTR_ERR(data->hwmon_dev); - goto exit_remove_files; - } - - dev_info(&new_client->dev, "Using VRM: %d.%d\n", - data->vrm / 10, data->vrm % 10); - - return 0; - -exit_remove_files: - sysfs_remove_group(&new_client->dev.kobj, &atxp1_group); - return err; -}; - -static int atxp1_remove(struct i2c_client *client) -{ - struct atxp1_data *data = i2c_get_clientdata(client); + hwmon_dev = devm_hwmon_device_register_with_groups(dev, client->name, + data, + atxp1_groups); + if (IS_ERR(hwmon_dev)) + return PTR_ERR(hwmon_dev); - hwmon_device_unregister(data->hwmon_dev); - sysfs_remove_group(&client->dev.kobj, &atxp1_group); + dev_info(dev, "Using VRM: %d.%d\n", data->vrm / 10, data->vrm % 10); return 0; }; @@ -374,7 +341,6 @@ static struct i2c_driver atxp1_driver = { .name = "atxp1", }, .probe = atxp1_probe, - .remove = atxp1_remove, .id_table = atxp1_id, .detect = atxp1_detect, .address_list = normal_i2c, -- cgit v1.2.3 From f82b2c344994f23c003c967fb833d1a0d7b2527f Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Tue, 17 Jun 2014 15:38:23 +0800 Subject: hwmon: (ads7828) Convert to devm_hwmon_device_register_with_groups Use ATTRIBUTE_GROUPS macro and devm_hwmon_device_register_with_groups() to simplify the code a bit. Signed-off-by: Axel Lin Signed-off-by: Guenter Roeck --- drivers/hwmon/ads7828.c | 52 +++++++++++++------------------------------------ 1 file changed, 14 insertions(+), 38 deletions(-) diff --git a/drivers/hwmon/ads7828.c b/drivers/hwmon/ads7828.c index 7092c78f814f..a622d40eec17 100644 --- a/drivers/hwmon/ads7828.c +++ b/drivers/hwmon/ads7828.c @@ -50,7 +50,7 @@ enum ads7828_chips { ads7828, ads7830 }; /* Client specific data */ struct ads7828_data { - struct device *hwmon_dev; + struct i2c_client *client; struct mutex update_lock; /* Mutex protecting updates */ unsigned long last_updated; /* Last updated time (in jiffies) */ u16 adc_input[ADS7828_NCH]; /* ADS7828_NCH samples */ @@ -72,8 +72,8 @@ static inline u8 ads7828_cmd_byte(u8 cmd, int ch) /* Update data for the device (all 8 channels) */ static struct ads7828_data *ads7828_update_device(struct device *dev) { - struct i2c_client *client = to_i2c_client(dev); - struct ads7828_data *data = i2c_get_clientdata(client); + struct ads7828_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; mutex_lock(&data->update_lock); @@ -116,7 +116,7 @@ static SENSOR_DEVICE_ATTR(in5_input, S_IRUGO, ads7828_show_in, NULL, 5); static SENSOR_DEVICE_ATTR(in6_input, S_IRUGO, ads7828_show_in, NULL, 6); static SENSOR_DEVICE_ATTR(in7_input, S_IRUGO, ads7828_show_in, NULL, 7); -static struct attribute *ads7828_attributes[] = { +static struct attribute *ads7828_attrs[] = { &sensor_dev_attr_in0_input.dev_attr.attr, &sensor_dev_attr_in1_input.dev_attr.attr, &sensor_dev_attr_in2_input.dev_attr.attr, @@ -128,29 +128,17 @@ static struct attribute *ads7828_attributes[] = { NULL }; -static const struct attribute_group ads7828_group = { - .attrs = ads7828_attributes, -}; - -static int ads7828_remove(struct i2c_client *client) -{ - struct ads7828_data *data = i2c_get_clientdata(client); - - hwmon_device_unregister(data->hwmon_dev); - sysfs_remove_group(&client->dev.kobj, &ads7828_group); - - return 0; -} +ATTRIBUTE_GROUPS(ads7828); static int ads7828_probe(struct i2c_client *client, const struct i2c_device_id *id) { - struct ads7828_platform_data *pdata = dev_get_platdata(&client->dev); + struct device *dev = &client->dev; + struct ads7828_platform_data *pdata = dev_get_platdata(dev); struct ads7828_data *data; - int err; + struct device *hwmon_dev; - data = devm_kzalloc(&client->dev, sizeof(struct ads7828_data), - GFP_KERNEL); + data = devm_kzalloc(dev, sizeof(struct ads7828_data), GFP_KERNEL); if (!data) return -ENOMEM; @@ -182,24 +170,13 @@ static int ads7828_probe(struct i2c_client *client, if (!data->diff_input) data->cmd_byte |= ADS7828_CMD_SD_SE; - i2c_set_clientdata(client, data); + data->client = client; mutex_init(&data->update_lock); - err = sysfs_create_group(&client->dev.kobj, &ads7828_group); - if (err) - return err; - - data->hwmon_dev = hwmon_device_register(&client->dev); - if (IS_ERR(data->hwmon_dev)) { - err = PTR_ERR(data->hwmon_dev); - goto error; - } - - return 0; - -error: - sysfs_remove_group(&client->dev.kobj, &ads7828_group); - return err; + hwmon_dev = devm_hwmon_device_register_with_groups(dev, client->name, + data, + ads7828_groups); + return PTR_ERR_OR_ZERO(hwmon_dev); } static const struct i2c_device_id ads7828_device_ids[] = { @@ -216,7 +193,6 @@ static struct i2c_driver ads7828_driver = { .id_table = ads7828_device_ids, .probe = ads7828_probe, - .remove = ads7828_remove, }; module_i2c_driver(ads7828_driver); -- cgit v1.2.3 From 9a70c97b218f5b78b3a265c3ba797b18fa36bd02 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Tue, 17 Jun 2014 23:10:55 +0800 Subject: hwmon: (wm831x) Convert to devm_hwmon_device_register_with_groups Use ATTRIBUTE_GROUPS macro and devm_hwmon_device_register_with_groups() to simplify the code a bit. Signed-off-by: Axel Lin Acked-by: Charles Keepax Signed-off-by: Guenter Roeck --- drivers/hwmon/wm831x-hwmon.c | 72 +++++++------------------------------------- 1 file changed, 11 insertions(+), 61 deletions(-) diff --git a/drivers/hwmon/wm831x-hwmon.c b/drivers/hwmon/wm831x-hwmon.c index df6ceaf8d58a..3e6a3195cd11 100644 --- a/drivers/hwmon/wm831x-hwmon.c +++ b/drivers/hwmon/wm831x-hwmon.c @@ -29,17 +29,6 @@ #include #include -struct wm831x_hwmon { - struct wm831x *wm831x; - struct device *classdev; -}; - -static ssize_t show_name(struct device *dev, - struct device_attribute *attr, char *buf) -{ - return sprintf(buf, "wm831x\n"); -} - static const char * const input_names[] = { [WM831X_AUX_SYSVDD] = "SYSVDD", [WM831X_AUX_USB] = "USB", @@ -50,15 +39,14 @@ static const char * const input_names[] = { [WM831X_AUX_BATT_TEMP] = "Battery", }; - static ssize_t show_voltage(struct device *dev, struct device_attribute *attr, char *buf) { - struct wm831x_hwmon *hwmon = dev_get_drvdata(dev); + struct wm831x *wm831x = dev_get_drvdata(dev); int channel = to_sensor_dev_attr(attr)->index; int ret; - ret = wm831x_auxadc_read_uv(hwmon->wm831x, channel); + ret = wm831x_auxadc_read_uv(wm831x, channel); if (ret < 0) return ret; @@ -68,11 +56,11 @@ static ssize_t show_voltage(struct device *dev, static ssize_t show_chip_temp(struct device *dev, struct device_attribute *attr, char *buf) { - struct wm831x_hwmon *hwmon = dev_get_drvdata(dev); + struct wm831x *wm831x = dev_get_drvdata(dev); int channel = to_sensor_dev_attr(attr)->index; int ret; - ret = wm831x_auxadc_read(hwmon->wm831x, channel); + ret = wm831x_auxadc_read(wm831x, channel); if (ret < 0) return ret; @@ -100,8 +88,6 @@ static ssize_t show_label(struct device *dev, static SENSOR_DEVICE_ATTR(in##id##_label, S_IRUGO, show_label, \ NULL, name) -static DEVICE_ATTR(name, S_IRUGO, show_name, NULL); - WM831X_VOLTAGE(0, WM831X_AUX_AUX1); WM831X_VOLTAGE(1, WM831X_AUX_AUX2); WM831X_VOLTAGE(2, WM831X_AUX_AUX3); @@ -126,9 +112,7 @@ static SENSOR_DEVICE_ATTR(temp2_input, S_IRUGO, show_voltage, NULL, static SENSOR_DEVICE_ATTR(temp2_label, S_IRUGO, show_label, NULL, WM831X_AUX_BATT_TEMP); -static struct attribute *wm831x_attributes[] = { - &dev_attr_name.attr, - +static struct attribute *wm831x_attrs[] = { &sensor_dev_attr_in0_input.dev_attr.attr, &sensor_dev_attr_in1_input.dev_attr.attr, &sensor_dev_attr_in2_input.dev_attr.attr, @@ -153,55 +137,21 @@ static struct attribute *wm831x_attributes[] = { NULL }; -static const struct attribute_group wm831x_attr_group = { - .attrs = wm831x_attributes, -}; +ATTRIBUTE_GROUPS(wm831x); static int wm831x_hwmon_probe(struct platform_device *pdev) { struct wm831x *wm831x = dev_get_drvdata(pdev->dev.parent); - struct wm831x_hwmon *hwmon; - int ret; - - hwmon = devm_kzalloc(&pdev->dev, sizeof(struct wm831x_hwmon), - GFP_KERNEL); - if (!hwmon) - return -ENOMEM; - - hwmon->wm831x = wm831x; - - ret = sysfs_create_group(&pdev->dev.kobj, &wm831x_attr_group); - if (ret) - return ret; - - hwmon->classdev = hwmon_device_register(&pdev->dev); - if (IS_ERR(hwmon->classdev)) { - ret = PTR_ERR(hwmon->classdev); - goto err_sysfs; - } - - platform_set_drvdata(pdev, hwmon); - - return 0; - -err_sysfs: - sysfs_remove_group(&pdev->dev.kobj, &wm831x_attr_group); - return ret; -} - -static int wm831x_hwmon_remove(struct platform_device *pdev) -{ - struct wm831x_hwmon *hwmon = platform_get_drvdata(pdev); - - hwmon_device_unregister(hwmon->classdev); - sysfs_remove_group(&pdev->dev.kobj, &wm831x_attr_group); + struct device *hwmon_dev; - return 0; + hwmon_dev = devm_hwmon_device_register_with_groups(&pdev->dev, "wm831x", + wm831x, + wm831x_groups); + return PTR_ERR_OR_ZERO(hwmon_dev); } static struct platform_driver wm831x_hwmon_driver = { .probe = wm831x_hwmon_probe, - .remove = wm831x_hwmon_remove, .driver = { .name = "wm831x-hwmon", .owner = THIS_MODULE, -- cgit v1.2.3 From b3aabd6db3700dfa6ab334c96cbf16c04929b8a2 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Tue, 17 Jun 2014 23:12:08 +0800 Subject: hwmon: (wm8350) Convert to devm_hwmon_device_register_with_groups Use ATTRIBUTE_GROUPS macro and devm_hwmon_device_register_with_groups() to simplify the code a bit. Signed-off-by: Axel Lin Acked-by: Charles Keepax Signed-off-by: Guenter Roeck --- drivers/hwmon/wm8350-hwmon.c | 50 +++++++------------------------------------- 1 file changed, 7 insertions(+), 43 deletions(-) diff --git a/drivers/hwmon/wm8350-hwmon.c b/drivers/hwmon/wm8350-hwmon.c index 64bf75c9442b..90e3d918e597 100644 --- a/drivers/hwmon/wm8350-hwmon.c +++ b/drivers/hwmon/wm8350-hwmon.c @@ -28,19 +28,12 @@ #include #include -static ssize_t show_name(struct device *dev, - struct device_attribute *attr, char *buf) -{ - return sprintf(buf, "wm8350\n"); -} - static const char * const input_names[] = { [WM8350_AUXADC_USB] = "USB", [WM8350_AUXADC_LINE] = "Line", [WM8350_AUXADC_BATT] = "Battery", }; - static ssize_t show_voltage(struct device *dev, struct device_attribute *attr, char *buf) { @@ -68,15 +61,11 @@ static ssize_t show_label(struct device *dev, static SENSOR_DEVICE_ATTR(in##id##_label, S_IRUGO, show_label, \ NULL, name) -static DEVICE_ATTR(name, S_IRUGO, show_name, NULL); - WM8350_NAMED_VOLTAGE(0, WM8350_AUXADC_USB); WM8350_NAMED_VOLTAGE(1, WM8350_AUXADC_BATT); WM8350_NAMED_VOLTAGE(2, WM8350_AUXADC_LINE); -static struct attribute *wm8350_attributes[] = { - &dev_attr_name.attr, - +static struct attribute *wm8350_attrs[] = { &sensor_dev_attr_in0_input.dev_attr.attr, &sensor_dev_attr_in0_label.dev_attr.attr, &sensor_dev_attr_in1_input.dev_attr.attr, @@ -87,46 +76,21 @@ static struct attribute *wm8350_attributes[] = { NULL, }; -static const struct attribute_group wm8350_attr_group = { - .attrs = wm8350_attributes, -}; +ATTRIBUTE_GROUPS(wm8350); static int wm8350_hwmon_probe(struct platform_device *pdev) { struct wm8350 *wm8350 = platform_get_drvdata(pdev); - int ret; - - ret = sysfs_create_group(&pdev->dev.kobj, &wm8350_attr_group); - if (ret) - goto err; - - wm8350->hwmon.classdev = hwmon_device_register(&pdev->dev); - if (IS_ERR(wm8350->hwmon.classdev)) { - ret = PTR_ERR(wm8350->hwmon.classdev); - goto err_group; - } - - return 0; - -err_group: - sysfs_remove_group(&pdev->dev.kobj, &wm8350_attr_group); -err: - return ret; -} - -static int wm8350_hwmon_remove(struct platform_device *pdev) -{ - struct wm8350 *wm8350 = platform_get_drvdata(pdev); - - hwmon_device_unregister(wm8350->hwmon.classdev); - sysfs_remove_group(&pdev->dev.kobj, &wm8350_attr_group); + struct device *hwmon_dev; - return 0; + hwmon_dev = devm_hwmon_device_register_with_groups(&pdev->dev, "wm8350", + wm8350, + wm8350_groups); + return PTR_ERR_OR_ZERO(hwmon_dev); } static struct platform_driver wm8350_hwmon_driver = { .probe = wm8350_hwmon_probe, - .remove = wm8350_hwmon_remove, .driver = { .name = "wm8350-hwmon", .owner = THIS_MODULE, -- cgit v1.2.3 From 562dc9732ac0ab1274d2ca129b5bee5a3cf778cc Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Thu, 19 Jun 2014 23:29:11 +0800 Subject: hwmon: (fam15h_power) Convert to devm_hwmon_device_register_with_groups Use ATTRIBUTE_GROUPS macro and devm_hwmon_device_register_with_groups() to simplify the code a bit. Signed-off-by: Axel Lin Signed-off-by: Guenter Roeck --- drivers/hwmon/fam15h_power.c | 51 ++++++++------------------------------------ 1 file changed, 9 insertions(+), 42 deletions(-) diff --git a/drivers/hwmon/fam15h_power.c b/drivers/hwmon/fam15h_power.c index 6040121a405a..7e36aa93e2b3 100644 --- a/drivers/hwmon/fam15h_power.c +++ b/drivers/hwmon/fam15h_power.c @@ -45,7 +45,7 @@ MODULE_LICENSE("GPL"); #define REG_TDP_LIMIT3 0xe8 struct fam15h_power_data { - struct device *hwmon_dev; + struct pci_dev *pdev; unsigned int tdp_to_watts; unsigned int base_tdp; unsigned int processor_pwr_watts; @@ -57,8 +57,8 @@ static ssize_t show_power(struct device *dev, u32 val, tdp_limit, running_avg_range; s32 running_avg_capture; u64 curr_pwr_watts; - struct pci_dev *f4 = to_pci_dev(dev); struct fam15h_power_data *data = dev_get_drvdata(dev); + struct pci_dev *f4 = data->pdev; pci_bus_read_config_dword(f4->bus, PCI_DEVFN(PCI_SLOT(f4->devfn), 5), REG_TDP_RUNNING_AVERAGE, &val); @@ -96,23 +96,13 @@ static ssize_t show_power_crit(struct device *dev, } static DEVICE_ATTR(power1_crit, S_IRUGO, show_power_crit, NULL); -static ssize_t show_name(struct device *dev, - struct device_attribute *attr, char *buf) -{ - return sprintf(buf, "fam15h_power\n"); -} -static DEVICE_ATTR(name, S_IRUGO, show_name, NULL); - static struct attribute *fam15h_power_attrs[] = { &dev_attr_power1_input.attr, &dev_attr_power1_crit.attr, - &dev_attr_name.attr, NULL }; -static const struct attribute_group fam15h_power_attr_group = { - .attrs = fam15h_power_attrs, -}; +ATTRIBUTE_GROUPS(fam15h_power); static bool fam15h_power_is_internal_node0(struct pci_dev *f4) { @@ -202,7 +192,7 @@ static int fam15h_power_probe(struct pci_dev *pdev, { struct fam15h_power_data *data; struct device *dev = &pdev->dev; - int err; + struct device *hwmon_dev; /* * though we ignore every other northbridge, we still have to @@ -219,34 +209,12 @@ static int fam15h_power_probe(struct pci_dev *pdev, return -ENOMEM; fam15h_power_init_data(pdev, data); + data->pdev = pdev; - dev_set_drvdata(dev, data); - err = sysfs_create_group(&dev->kobj, &fam15h_power_attr_group); - if (err) - return err; - - data->hwmon_dev = hwmon_device_register(dev); - if (IS_ERR(data->hwmon_dev)) { - err = PTR_ERR(data->hwmon_dev); - goto exit_remove_group; - } - - return 0; - -exit_remove_group: - sysfs_remove_group(&dev->kobj, &fam15h_power_attr_group); - return err; -} - -static void fam15h_power_remove(struct pci_dev *pdev) -{ - struct device *dev; - struct fam15h_power_data *data; - - dev = &pdev->dev; - data = dev_get_drvdata(dev); - hwmon_device_unregister(data->hwmon_dev); - sysfs_remove_group(&dev->kobj, &fam15h_power_attr_group); + hwmon_dev = devm_hwmon_device_register_with_groups(dev, "fam15h_power", + data, + fam15h_power_groups); + return PTR_ERR_OR_ZERO(hwmon_dev); } static const struct pci_device_id fam15h_power_id_table[] = { @@ -260,7 +228,6 @@ static struct pci_driver fam15h_power_driver = { .name = "fam15h_power", .id_table = fam15h_power_id_table, .probe = fam15h_power_probe, - .remove = fam15h_power_remove, .resume = fam15h_power_resume, }; -- cgit v1.2.3 From bab711ae8c7ad40f080dc74cc1c664cfe56ceff3 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Wed, 25 Jun 2014 09:38:57 +0800 Subject: hwmon: (w83l786ng) Avoid forward declaration Reorder functions to avoid forward declaration. Signed-off-by: Axel Lin Acked-by: Kevin Lo Signed-off-by: Guenter Roeck --- drivers/hwmon/w83l786ng.c | 209 ++++++++++++++++++++++------------------------ 1 file changed, 100 insertions(+), 109 deletions(-) diff --git a/drivers/hwmon/w83l786ng.c b/drivers/hwmon/w83l786ng.c index 32487c19cbfc..6caf33a5508b 100644 --- a/drivers/hwmon/w83l786ng.c +++ b/drivers/hwmon/w83l786ng.c @@ -148,32 +148,6 @@ struct w83l786ng_data { u8 tolerance[2]; }; -static int w83l786ng_probe(struct i2c_client *client, - const struct i2c_device_id *id); -static int w83l786ng_detect(struct i2c_client *client, - struct i2c_board_info *info); -static int w83l786ng_remove(struct i2c_client *client); -static void w83l786ng_init_client(struct i2c_client *client); -static struct w83l786ng_data *w83l786ng_update_device(struct device *dev); - -static const struct i2c_device_id w83l786ng_id[] = { - { "w83l786ng", 0 }, - { } -}; -MODULE_DEVICE_TABLE(i2c, w83l786ng_id); - -static struct i2c_driver w83l786ng_driver = { - .class = I2C_CLASS_HWMON, - .driver = { - .name = "w83l786ng", - }, - .probe = w83l786ng_probe, - .remove = w83l786ng_remove, - .id_table = w83l786ng_id, - .detect = w83l786ng_detect, - .address_list = normal_i2c, -}; - static u8 w83l786ng_read_value(struct i2c_client *client, u8 reg) { @@ -186,6 +160,77 @@ w83l786ng_write_value(struct i2c_client *client, u8 reg, u8 value) return i2c_smbus_write_byte_data(client, reg, value); } +static struct w83l786ng_data *w83l786ng_update_device(struct device *dev) +{ + struct i2c_client *client = to_i2c_client(dev); + struct w83l786ng_data *data = i2c_get_clientdata(client); + int i, j; + u8 reg_tmp, pwmcfg; + + mutex_lock(&data->update_lock); + if (time_after(jiffies, data->last_updated + HZ + HZ / 2) + || !data->valid) { + dev_dbg(&client->dev, "Updating w83l786ng data.\n"); + + /* Update the voltages measured value and limits */ + for (i = 0; i < 3; i++) { + data->in[i] = w83l786ng_read_value(client, + W83L786NG_REG_IN(i)); + data->in_min[i] = w83l786ng_read_value(client, + W83L786NG_REG_IN_MIN(i)); + data->in_max[i] = w83l786ng_read_value(client, + W83L786NG_REG_IN_MAX(i)); + } + + /* Update the fan counts and limits */ + for (i = 0; i < 2; i++) { + data->fan[i] = w83l786ng_read_value(client, + W83L786NG_REG_FAN(i)); + data->fan_min[i] = w83l786ng_read_value(client, + W83L786NG_REG_FAN_MIN(i)); + } + + /* Update the fan divisor */ + reg_tmp = w83l786ng_read_value(client, W83L786NG_REG_FAN_DIV); + data->fan_div[0] = reg_tmp & 0x07; + data->fan_div[1] = (reg_tmp >> 4) & 0x07; + + pwmcfg = w83l786ng_read_value(client, W83L786NG_REG_FAN_CFG); + for (i = 0; i < 2; i++) { + data->pwm_mode[i] = + ((pwmcfg >> W83L786NG_PWM_MODE_SHIFT[i]) & 1) + ? 0 : 1; + data->pwm_enable[i] = + ((pwmcfg >> W83L786NG_PWM_ENABLE_SHIFT[i]) & 3) + 1; + data->pwm[i] = + (w83l786ng_read_value(client, W83L786NG_REG_PWM[i]) + & 0x0f) * 0x11; + } + + + /* Update the temperature sensors */ + for (i = 0; i < 2; i++) { + for (j = 0; j < 3; j++) { + data->temp[i][j] = w83l786ng_read_value(client, + W83L786NG_REG_TEMP[i][j]); + } + } + + /* Update Smart Fan I/II tolerance */ + reg_tmp = w83l786ng_read_value(client, W83L786NG_REG_TOLERANCE); + data->tolerance[0] = reg_tmp & 0x0f; + data->tolerance[1] = (reg_tmp >> 4) & 0x0f; + + data->last_updated = jiffies; + data->valid = 1; + + } + + mutex_unlock(&data->update_lock); + + return data; +} + /* following are the sysfs callback functions */ #define show_in_reg(reg) \ static ssize_t \ @@ -662,6 +707,19 @@ w83l786ng_detect(struct i2c_client *client, struct i2c_board_info *info) return 0; } +static void w83l786ng_init_client(struct i2c_client *client) +{ + u8 tmp; + + if (reset) + w83l786ng_write_value(client, W83L786NG_REG_CONFIG, 0x80); + + /* Start monitoring */ + tmp = w83l786ng_read_value(client, W83L786NG_REG_CONFIG); + if (!(tmp & 0x01)) + w83l786ng_write_value(client, W83L786NG_REG_CONFIG, tmp | 0x01); +} + static int w83l786ng_probe(struct i2c_client *client, const struct i2c_device_id *id) { @@ -723,90 +781,23 @@ w83l786ng_remove(struct i2c_client *client) return 0; } -static void -w83l786ng_init_client(struct i2c_client *client) -{ - u8 tmp; - - if (reset) - w83l786ng_write_value(client, W83L786NG_REG_CONFIG, 0x80); - - /* Start monitoring */ - tmp = w83l786ng_read_value(client, W83L786NG_REG_CONFIG); - if (!(tmp & 0x01)) - w83l786ng_write_value(client, W83L786NG_REG_CONFIG, tmp | 0x01); -} - -static struct w83l786ng_data *w83l786ng_update_device(struct device *dev) -{ - struct i2c_client *client = to_i2c_client(dev); - struct w83l786ng_data *data = i2c_get_clientdata(client); - int i, j; - u8 reg_tmp, pwmcfg; - - mutex_lock(&data->update_lock); - if (time_after(jiffies, data->last_updated + HZ + HZ / 2) - || !data->valid) { - dev_dbg(&client->dev, "Updating w83l786ng data.\n"); - - /* Update the voltages measured value and limits */ - for (i = 0; i < 3; i++) { - data->in[i] = w83l786ng_read_value(client, - W83L786NG_REG_IN(i)); - data->in_min[i] = w83l786ng_read_value(client, - W83L786NG_REG_IN_MIN(i)); - data->in_max[i] = w83l786ng_read_value(client, - W83L786NG_REG_IN_MAX(i)); - } - - /* Update the fan counts and limits */ - for (i = 0; i < 2; i++) { - data->fan[i] = w83l786ng_read_value(client, - W83L786NG_REG_FAN(i)); - data->fan_min[i] = w83l786ng_read_value(client, - W83L786NG_REG_FAN_MIN(i)); - } - - /* Update the fan divisor */ - reg_tmp = w83l786ng_read_value(client, W83L786NG_REG_FAN_DIV); - data->fan_div[0] = reg_tmp & 0x07; - data->fan_div[1] = (reg_tmp >> 4) & 0x07; - - pwmcfg = w83l786ng_read_value(client, W83L786NG_REG_FAN_CFG); - for (i = 0; i < 2; i++) { - data->pwm_mode[i] = - ((pwmcfg >> W83L786NG_PWM_MODE_SHIFT[i]) & 1) - ? 0 : 1; - data->pwm_enable[i] = - ((pwmcfg >> W83L786NG_PWM_ENABLE_SHIFT[i]) & 3) + 1; - data->pwm[i] = - (w83l786ng_read_value(client, W83L786NG_REG_PWM[i]) - & 0x0f) * 0x11; - } - - - /* Update the temperature sensors */ - for (i = 0; i < 2; i++) { - for (j = 0; j < 3; j++) { - data->temp[i][j] = w83l786ng_read_value(client, - W83L786NG_REG_TEMP[i][j]); - } - } - - /* Update Smart Fan I/II tolerance */ - reg_tmp = w83l786ng_read_value(client, W83L786NG_REG_TOLERANCE); - data->tolerance[0] = reg_tmp & 0x0f; - data->tolerance[1] = (reg_tmp >> 4) & 0x0f; - - data->last_updated = jiffies; - data->valid = 1; - - } - - mutex_unlock(&data->update_lock); +static const struct i2c_device_id w83l786ng_id[] = { + { "w83l786ng", 0 }, + { } +}; +MODULE_DEVICE_TABLE(i2c, w83l786ng_id); - return data; -} +static struct i2c_driver w83l786ng_driver = { + .class = I2C_CLASS_HWMON, + .driver = { + .name = "w83l786ng", + }, + .probe = w83l786ng_probe, + .remove = w83l786ng_remove, + .id_table = w83l786ng_id, + .detect = w83l786ng_detect, + .address_list = normal_i2c, +}; module_i2c_driver(w83l786ng_driver); -- cgit v1.2.3 From 202e4851f8aa6bad39c7799dac93c6951d064c87 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Wed, 25 Jun 2014 09:39:51 +0800 Subject: hwmon: (w83l786ng) Convert to devm_hwmon_device_register_with_groups Use ATTRIBUTE_GROUPS macro and devm_hwmon_device_register_with_groups() to simplify the code a bit. Signed-off-by: Axel Lin Acked-by: Kevin Lo Signed-off-by: Guenter Roeck --- drivers/hwmon/w83l786ng.c | 86 ++++++++++++++++------------------------------- 1 file changed, 29 insertions(+), 57 deletions(-) diff --git a/drivers/hwmon/w83l786ng.c b/drivers/hwmon/w83l786ng.c index 6caf33a5508b..330299613d38 100644 --- a/drivers/hwmon/w83l786ng.c +++ b/drivers/hwmon/w83l786ng.c @@ -124,7 +124,7 @@ DIV_TO_REG(long val) } struct w83l786ng_data { - struct device *hwmon_dev; + struct i2c_client *client; struct mutex update_lock; char valid; /* !=0 if following fields are valid */ unsigned long last_updated; /* In jiffies */ @@ -162,8 +162,8 @@ w83l786ng_write_value(struct i2c_client *client, u8 reg, u8 value) static struct w83l786ng_data *w83l786ng_update_device(struct device *dev) { - struct i2c_client *client = to_i2c_client(dev); - struct w83l786ng_data *data = i2c_get_clientdata(client); + struct w83l786ng_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; int i, j; u8 reg_tmp, pwmcfg; @@ -252,8 +252,8 @@ store_in_##reg(struct device *dev, struct device_attribute *attr, \ const char *buf, size_t count) \ { \ int nr = to_sensor_dev_attr(attr)->index; \ - struct i2c_client *client = to_i2c_client(dev); \ - struct w83l786ng_data *data = i2c_get_clientdata(client); \ + struct w83l786ng_data *data = dev_get_drvdata(dev); \ + struct i2c_client *client = data->client; \ unsigned long val; \ int err = kstrtoul(buf, 10, &val); \ if (err) \ @@ -305,8 +305,8 @@ store_fan_min(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { int nr = to_sensor_dev_attr(attr)->index; - struct i2c_client *client = to_i2c_client(dev); - struct w83l786ng_data *data = i2c_get_clientdata(client); + struct w83l786ng_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; unsigned long val; int err; @@ -343,8 +343,8 @@ store_fan_div(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { int nr = to_sensor_dev_attr(attr)->index; - struct i2c_client *client = to_i2c_client(dev); - struct w83l786ng_data *data = i2c_get_clientdata(client); + struct w83l786ng_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; unsigned long min; u8 tmp_fan_div; @@ -434,8 +434,8 @@ store_temp(struct device *dev, struct device_attribute *attr, to_sensor_dev_attr_2(attr); int nr = sensor_attr->nr; int index = sensor_attr->index; - struct i2c_client *client = to_i2c_client(dev); - struct w83l786ng_data *data = i2c_get_clientdata(client); + struct w83l786ng_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; long val; int err; @@ -489,8 +489,8 @@ store_pwm_mode(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { int nr = to_sensor_dev_attr(attr)->index; - struct i2c_client *client = to_i2c_client(dev); - struct w83l786ng_data *data = i2c_get_clientdata(client); + struct w83l786ng_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; u8 reg; unsigned long val; int err; @@ -517,8 +517,8 @@ store_pwm(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { int nr = to_sensor_dev_attr(attr)->index; - struct i2c_client *client = to_i2c_client(dev); - struct w83l786ng_data *data = i2c_get_clientdata(client); + struct w83l786ng_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; unsigned long val; int err; @@ -541,8 +541,8 @@ store_pwm_enable(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { int nr = to_sensor_dev_attr(attr)->index; - struct i2c_client *client = to_i2c_client(dev); - struct w83l786ng_data *data = i2c_get_clientdata(client); + struct w83l786ng_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; u8 reg; unsigned long val; int err; @@ -597,8 +597,8 @@ store_tolerance(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { int nr = to_sensor_dev_attr(attr)->index; - struct i2c_client *client = to_i2c_client(dev); - struct w83l786ng_data *data = i2c_get_clientdata(client); + struct w83l786ng_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; u8 tol_tmp, tol_mask; unsigned long val; int err; @@ -653,7 +653,7 @@ static struct sensor_device_attribute sda_tolerance[] = { #define TOLERANCE_UNIT_ATTRS(X) \ &sda_tolerance[X].dev_attr.attr -static struct attribute *w83l786ng_attributes[] = { +static struct attribute *w83l786ng_attrs[] = { IN_UNIT_ATTRS(0), IN_UNIT_ATTRS(1), IN_UNIT_ATTRS(2), @@ -668,9 +668,7 @@ static struct attribute *w83l786ng_attributes[] = { NULL }; -static const struct attribute_group w83l786ng_group = { - .attrs = w83l786ng_attributes, -}; +ATTRIBUTE_GROUPS(w83l786ng); static int w83l786ng_detect(struct i2c_client *client, struct i2c_board_info *info) @@ -725,15 +723,15 @@ w83l786ng_probe(struct i2c_client *client, const struct i2c_device_id *id) { struct device *dev = &client->dev; struct w83l786ng_data *data; - int i, err = 0; + struct device *hwmon_dev; + int i; u8 reg_tmp; - data = devm_kzalloc(&client->dev, sizeof(struct w83l786ng_data), - GFP_KERNEL); + data = devm_kzalloc(dev, sizeof(struct w83l786ng_data), GFP_KERNEL); if (!data) return -ENOMEM; - i2c_set_clientdata(client, data); + data->client = client; mutex_init(&data->update_lock); /* Initialize the chip */ @@ -750,35 +748,10 @@ w83l786ng_probe(struct i2c_client *client, const struct i2c_device_id *id) data->fan_div[0] = reg_tmp & 0x07; data->fan_div[1] = (reg_tmp >> 4) & 0x07; - /* Register sysfs hooks */ - err = sysfs_create_group(&client->dev.kobj, &w83l786ng_group); - if (err) - goto exit_remove; - - data->hwmon_dev = hwmon_device_register(dev); - if (IS_ERR(data->hwmon_dev)) { - err = PTR_ERR(data->hwmon_dev); - goto exit_remove; - } - - return 0; - - /* Unregister sysfs hooks */ - -exit_remove: - sysfs_remove_group(&client->dev.kobj, &w83l786ng_group); - return err; -} - -static int -w83l786ng_remove(struct i2c_client *client) -{ - struct w83l786ng_data *data = i2c_get_clientdata(client); - - hwmon_device_unregister(data->hwmon_dev); - sysfs_remove_group(&client->dev.kobj, &w83l786ng_group); - - return 0; + hwmon_dev = devm_hwmon_device_register_with_groups(dev, client->name, + data, + w83l786ng_groups); + return PTR_ERR_OR_ZERO(hwmon_dev); } static const struct i2c_device_id w83l786ng_id[] = { @@ -793,7 +766,6 @@ static struct i2c_driver w83l786ng_driver = { .name = "w83l786ng", }, .probe = w83l786ng_probe, - .remove = w83l786ng_remove, .id_table = w83l786ng_id, .detect = w83l786ng_detect, .address_list = normal_i2c, -- cgit v1.2.3 From c83959f89f1cbe2e712c11e4a77d89f4d34d09ff Mon Sep 17 00:00:00 2001 From: Frans Klaver Date: Thu, 26 Jun 2014 11:21:11 +0200 Subject: hwmon: (lm75) Add support for TMP112 TMP112 is compatible to LM75. Signed-off-by: Frans Klaver Signed-off-by: Guenter Roeck --- Documentation/hwmon/lm75 | 5 +++-- drivers/hwmon/Kconfig | 4 ++-- drivers/hwmon/lm75.c | 8 ++++++++ 3 files changed, 13 insertions(+), 4 deletions(-) diff --git a/Documentation/hwmon/lm75 b/Documentation/hwmon/lm75 index 2560a9c6d445..c6a5ff1b4641 100644 --- a/Documentation/hwmon/lm75 +++ b/Documentation/hwmon/lm75 @@ -42,13 +42,14 @@ Supported chips: Addresses scanned: none Datasheet: Publicly available at the ST website http://www.st.com/internet/analog/product/121769.jsp - * Texas Instruments TMP100, TMP101, TMP105, TMP75, TMP175, TMP275 - Prefixes: 'tmp100', 'tmp101', 'tmp105', 'tmp175', 'tmp75', 'tmp275' + * Texas Instruments TMP100, TMP101, TMP105, TMP112, TMP75, TMP175, TMP275 + Prefixes: 'tmp100', 'tmp101', 'tmp105', 'tmp112', 'tmp175', 'tmp75', 'tmp275' Addresses scanned: none Datasheet: Publicly available at the Texas Instruments website http://www.ti.com/product/tmp100 http://www.ti.com/product/tmp101 http://www.ti.com/product/tmp105 + http://www.ti.com/product/tmp112 http://www.ti.com/product/tmp75 http://www.ti.com/product/tmp175 http://www.ti.com/product/tmp275 diff --git a/drivers/hwmon/Kconfig b/drivers/hwmon/Kconfig index a01a166e511b..0c7359c5c317 100644 --- a/drivers/hwmon/Kconfig +++ b/drivers/hwmon/Kconfig @@ -894,8 +894,8 @@ config SENSORS_LM75 - NXP's LM75A - ST Microelectronics STDS75 - TelCom (now Microchip) TCN75 - - Texas Instruments TMP100, TMP101, TMP105, TMP75, TMP175, - TMP275 + - Texas Instruments TMP100, TMP101, TMP105, TMP112, TMP75, + TMP175, TMP275 This driver supports driver model based binding through board specific I2C device tables. diff --git a/drivers/hwmon/lm75.c b/drivers/hwmon/lm75.c index 479ffbeed3f8..d16dbb33a531 100644 --- a/drivers/hwmon/lm75.c +++ b/drivers/hwmon/lm75.c @@ -52,6 +52,7 @@ enum lm75_type { /* keep sorted in alphabetical order */ tmp100, tmp101, tmp105, + tmp112, tmp175, tmp275, tmp75, @@ -255,6 +256,12 @@ lm75_probe(struct i2c_client *client, const struct i2c_device_id *id) data->sample_time = HZ; clr_mask |= 1 << 7; /* not one-shot mode */ break; + case tmp112: + set_mask |= 3 << 5; /* 12-bit mode */ + clr_mask |= 1 << 7; /* not one-shot mode */ + data->resolution = 12; + data->sample_time = HZ / 4; + break; case tmp105: case tmp175: case tmp275: @@ -323,6 +330,7 @@ static const struct i2c_device_id lm75_ids[] = { { "tmp100", tmp100, }, { "tmp101", tmp101, }, { "tmp105", tmp105, }, + { "tmp112", tmp112, }, { "tmp175", tmp175, }, { "tmp275", tmp275, }, { "tmp75", tmp75, }, -- cgit v1.2.3 From 233adcefee012ae9b3f3e7d16017bce9072fe62d Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Fri, 27 Jun 2014 22:49:29 +0800 Subject: hwmon: (tmp103) Add missing i2c_set_clientdata call in tmp103_probe Add missing i2c_set_clientdata() call in tmp103_probe, this makes the dev_get_drvdata() call in tmp103_suspend/tmp103_resume return correct address. Signed-off-by: Axel Lin Signed-off-by: Guenter Roeck --- drivers/hwmon/tmp103.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/hwmon/tmp103.c b/drivers/hwmon/tmp103.c index e69dbcacac89..c9f99e0eb368 100644 --- a/drivers/hwmon/tmp103.c +++ b/drivers/hwmon/tmp103.c @@ -151,6 +151,7 @@ static int tmp103_probe(struct i2c_client *client, return ret; } + i2c_set_clientdata(client, regmap); hwmon_dev = hwmon_device_register_with_groups(dev, client->name, regmap, tmp103_groups); return PTR_ERR_OR_ZERO(hwmon_dev); -- cgit v1.2.3 From a5afc18c9fbae900430b60948b940fbdf734d220 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Sun, 29 Jun 2014 14:45:54 +0800 Subject: hwmon: (hih6130) Convert to devm_hwmon_device_register_with_groups Use ATTRIBUTE_GROUPS macro and devm_hwmon_device_register_with_groups() to simplify the code a bit. Signed-off-by: Axel Lin Tested-by: Iain Paton Signed-off-by: Guenter Roeck --- drivers/hwmon/hih6130.c | 88 +++++++++++++------------------------------------ 1 file changed, 23 insertions(+), 65 deletions(-) diff --git a/drivers/hwmon/hih6130.c b/drivers/hwmon/hih6130.c index 7d68a08baaa8..0e01c4e13e33 100644 --- a/drivers/hwmon/hih6130.c +++ b/drivers/hwmon/hih6130.c @@ -46,7 +46,7 @@ * @write_length: length for I2C measurement request */ struct hih6130 { - struct device *hwmon_dev; + struct i2c_client *client; struct mutex lock; bool valid; unsigned long last_update; @@ -62,7 +62,6 @@ struct hih6130 { */ static inline int hih6130_temp_ticks_to_millicelsius(int ticks) { - ticks = ticks >> 2; /* * from data sheet section 5.0 @@ -78,7 +77,6 @@ static inline int hih6130_temp_ticks_to_millicelsius(int ticks) */ static inline int hih6130_rh_ticks_to_per_cent_mille(int ticks) { - ticks &= ~0xC000; /* clear status bits */ /* * from data sheet section 4.0 @@ -89,15 +87,16 @@ static inline int hih6130_rh_ticks_to_per_cent_mille(int ticks) /** * hih6130_update_measurements() - get updated measurements from device - * @client: I2C client device + * @dev: device * * Returns 0 on success, else negative errno. */ -static int hih6130_update_measurements(struct i2c_client *client) +static int hih6130_update_measurements(struct device *dev) { + struct hih6130 *hih6130 = dev_get_drvdata(dev); + struct i2c_client *client = hih6130->client; int ret = 0; int t; - struct hih6130 *hih6130 = i2c_get_clientdata(client); unsigned char tmp[4]; struct i2c_msg msgs[1] = { { @@ -176,9 +175,10 @@ static ssize_t hih6130_show_temperature(struct device *dev, struct device_attribute *attr, char *buf) { - struct i2c_client *client = to_i2c_client(dev); - struct hih6130 *hih6130 = i2c_get_clientdata(client); - int ret = hih6130_update_measurements(client); + struct hih6130 *hih6130 = dev_get_drvdata(dev); + int ret; + + ret = hih6130_update_measurements(dev); if (ret < 0) return ret; return sprintf(buf, "%d\n", hih6130->temperature); @@ -196,9 +196,10 @@ static ssize_t hih6130_show_temperature(struct device *dev, static ssize_t hih6130_show_humidity(struct device *dev, struct device_attribute *attr, char *buf) { - struct i2c_client *client = to_i2c_client(dev); - struct hih6130 *hih6130 = i2c_get_clientdata(client); - int ret = hih6130_update_measurements(client); + struct hih6130 *hih6130 = dev_get_drvdata(dev); + int ret; + + ret = hih6130_update_measurements(dev); if (ret < 0) return ret; return sprintf(buf, "%d\n", hih6130->humidity); @@ -210,79 +211,37 @@ static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, hih6130_show_temperature, static SENSOR_DEVICE_ATTR(humidity1_input, S_IRUGO, hih6130_show_humidity, NULL, 0); -static struct attribute *hih6130_attributes[] = { +static struct attribute *hih6130_attrs[] = { &sensor_dev_attr_temp1_input.dev_attr.attr, &sensor_dev_attr_humidity1_input.dev_attr.attr, NULL }; -static const struct attribute_group hih6130_attr_group = { - .attrs = hih6130_attributes, -}; +ATTRIBUTE_GROUPS(hih6130); -/** - * hih6130_probe() - probe device - * @client: I2C client device - * @id: device ID - * - * Called by the I2C core when an entry in the ID table matches a - * device's name. - * Returns 0 on success. - */ static int hih6130_probe(struct i2c_client *client, const struct i2c_device_id *id) { + struct device *dev = &client->dev; struct hih6130 *hih6130; - int err; + struct device *hwmon_dev; if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) { dev_err(&client->dev, "adapter does not support true I2C\n"); return -ENODEV; } - hih6130 = devm_kzalloc(&client->dev, sizeof(*hih6130), GFP_KERNEL); + hih6130 = devm_kzalloc(dev, sizeof(*hih6130), GFP_KERNEL); if (!hih6130) return -ENOMEM; - i2c_set_clientdata(client, hih6130); - + hih6130->client = client; mutex_init(&hih6130->lock); - err = sysfs_create_group(&client->dev.kobj, &hih6130_attr_group); - if (err) { - dev_dbg(&client->dev, "could not create sysfs files\n"); - return err; - } - - hih6130->hwmon_dev = hwmon_device_register(&client->dev); - if (IS_ERR(hih6130->hwmon_dev)) { - dev_dbg(&client->dev, "unable to register hwmon device\n"); - err = PTR_ERR(hih6130->hwmon_dev); - goto fail_remove_sysfs; - } - - if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_QUICK)) - hih6130->write_length = 1; - - return 0; - -fail_remove_sysfs: - sysfs_remove_group(&client->dev.kobj, &hih6130_attr_group); - return err; -} - -/** - * hih6130_remove() - remove device - * @client: I2C client device - */ -static int hih6130_remove(struct i2c_client *client) -{ - struct hih6130 *hih6130 = i2c_get_clientdata(client); - - hwmon_device_unregister(hih6130->hwmon_dev); - sysfs_remove_group(&client->dev.kobj, &hih6130_attr_group); - - return 0; + hwmon_dev = devm_hwmon_device_register_with_groups(dev, client->name, + hih6130, + hih6130_groups); + return PTR_ERR_OR_ZERO(hwmon_dev); } /* Device ID table */ @@ -295,7 +254,6 @@ MODULE_DEVICE_TABLE(i2c, hih6130_id); static struct i2c_driver hih6130_driver = { .driver.name = "hih6130", .probe = hih6130_probe, - .remove = hih6130_remove, .id_table = hih6130_id, }; -- cgit v1.2.3 From 3ef0bb6f769bc61af0ec073cbf49db6598bdefc0 Mon Sep 17 00:00:00 2001 From: Johannes Pointner Date: Fri, 27 Jun 2014 19:53:53 +0200 Subject: devicetree: Add vendor prefix "epcos" to vendor-prefixes.txt This patch adds the vendor prefix for "epcos" to the vendor-prefixes. Signed-off-by: Johannes Pointner Signed-off-by: Guenter Roeck --- Documentation/devicetree/bindings/vendor-prefixes.txt | 1 + 1 file changed, 1 insertion(+) diff --git a/Documentation/devicetree/bindings/vendor-prefixes.txt b/Documentation/devicetree/bindings/vendor-prefixes.txt index 46a311e728a8..97c9c06132c4 100644 --- a/Documentation/devicetree/bindings/vendor-prefixes.txt +++ b/Documentation/devicetree/bindings/vendor-prefixes.txt @@ -42,6 +42,7 @@ dmo Data Modul AG ebv EBV Elektronik edt Emerging Display Technologies emmicro EM Microelectronic +epcos EPCOS AG epfl Ecole Polytechnique Fédérale de Lausanne epson Seiko Epson Corp. est ESTeem Wireless Modems -- cgit v1.2.3 From ed67f0872be1aa516831332c732752022d4edc7c Mon Sep 17 00:00:00 2001 From: Johannes Pointner Date: Tue, 1 Jul 2014 08:05:52 +0200 Subject: hwmon: (ntc_thermistor) Support B57330V2103 from EPCOS This patch adds support for the ntc thermistor B57330V2103 from EPCOS. Signed-off-by: Johannes Pointner Signed-off-by: Guenter Roeck --- .../devicetree/bindings/hwmon/ntc_thermistor.txt | 1 + Documentation/hwmon/ntc_thermistor | 5 +++ drivers/hwmon/Kconfig | 2 +- drivers/hwmon/ntc_thermistor.c | 50 +++++++++++++++++++++- include/linux/platform_data/ntc_thermistor.h | 1 + 5 files changed, 57 insertions(+), 2 deletions(-) diff --git a/Documentation/devicetree/bindings/hwmon/ntc_thermistor.txt b/Documentation/devicetree/bindings/hwmon/ntc_thermistor.txt index b117b2e9e1a7..2391e5c41999 100644 --- a/Documentation/devicetree/bindings/hwmon/ntc_thermistor.txt +++ b/Documentation/devicetree/bindings/hwmon/ntc_thermistor.txt @@ -3,6 +3,7 @@ NTC Thermistor hwmon sensors Requires node properties: - "compatible" value : one of + "epcos,b57330v2103" "murata,ncp15wb473" "murata,ncp18wb473" "murata,ncp21wb473" diff --git a/Documentation/hwmon/ntc_thermistor b/Documentation/hwmon/ntc_thermistor index 057b77029f26..c5e05e2900a3 100644 --- a/Documentation/hwmon/ntc_thermistor +++ b/Documentation/hwmon/ntc_thermistor @@ -6,6 +6,11 @@ Supported thermistors from Murata: Prefixes: 'ncp15wb473', 'ncp18wb473', 'ncp21wb473', 'ncp03wb473', 'ncp15wl333' Datasheet: Publicly available at Murata +Supported thermistors from EPCOS: +* EPCOS NTC Thermistors B57330V2103 + Prefixes: b57330v2103 + Datasheet: Publicly available at EPCOS + Other NTC thermistors can be supported simply by adding compensation tables; e.g., NCP15WL333 support is added by the table ncpXXwl333. diff --git a/drivers/hwmon/Kconfig b/drivers/hwmon/Kconfig index 0c7359c5c317..ae1e2160c1b5 100644 --- a/drivers/hwmon/Kconfig +++ b/drivers/hwmon/Kconfig @@ -1073,7 +1073,7 @@ config SENSORS_NTC_THERMISTOR Currently, this driver supports NCP15WB473, NCP18WB473, NCP21WB473, NCP03WB473, and NCP15WL333 - from Murata. + from Murata and B57330V2103 from EPCOS. This driver can also be built as a module. If so, the module will be called ntc-thermistor. diff --git a/drivers/hwmon/ntc_thermistor.c b/drivers/hwmon/ntc_thermistor.c index ae66f42c4d6d..bd410722cd4b 100644 --- a/drivers/hwmon/ntc_thermistor.c +++ b/drivers/hwmon/ntc_thermistor.c @@ -51,6 +51,7 @@ static const struct platform_device_id ntc_thermistor_id[] = { { "ncp21wb473", TYPE_NCPXXWB473 }, { "ncp03wb473", TYPE_NCPXXWB473 }, { "ncp15wl333", TYPE_NCPXXWL333 }, + { "b57330v2103", TYPE_B57330V2103}, { }, }; @@ -133,6 +134,47 @@ static const struct ntc_compensation ncpXXwl333[] = { { .temp_c = 125, .ohm = 707 }, }; +/* + * The following compensation table is from the specification of EPCOS NTC + * Thermistors Datasheet + */ +static const struct ntc_compensation b57330v2103[] = { + { .temp_c = -40, .ohm = 190030 }, + { .temp_c = -35, .ohm = 145360 }, + { .temp_c = -30, .ohm = 112060 }, + { .temp_c = -25, .ohm = 87041 }, + { .temp_c = -20, .ohm = 68104 }, + { .temp_c = -15, .ohm = 53665 }, + { .temp_c = -10, .ohm = 42576 }, + { .temp_c = -5, .ohm = 34001 }, + { .temp_c = 0, .ohm = 27326 }, + { .temp_c = 5, .ohm = 22096 }, + { .temp_c = 10, .ohm = 17973 }, + { .temp_c = 15, .ohm = 14703 }, + { .temp_c = 20, .ohm = 12090 }, + { .temp_c = 25, .ohm = 10000 }, + { .temp_c = 30, .ohm = 8311 }, + { .temp_c = 35, .ohm = 6941 }, + { .temp_c = 40, .ohm = 5825 }, + { .temp_c = 45, .ohm = 4911 }, + { .temp_c = 50, .ohm = 4158 }, + { .temp_c = 55, .ohm = 3536 }, + { .temp_c = 60, .ohm = 3019 }, + { .temp_c = 65, .ohm = 2588 }, + { .temp_c = 70, .ohm = 2227 }, + { .temp_c = 75, .ohm = 1924 }, + { .temp_c = 80, .ohm = 1668 }, + { .temp_c = 85, .ohm = 1451 }, + { .temp_c = 90, .ohm = 1266 }, + { .temp_c = 95, .ohm = 1108 }, + { .temp_c = 100, .ohm = 973 }, + { .temp_c = 105, .ohm = 857 }, + { .temp_c = 110, .ohm = 757 }, + { .temp_c = 115, .ohm = 671 }, + { .temp_c = 120, .ohm = 596 }, + { .temp_c = 125, .ohm = 531 }, +}; + struct ntc_data { struct device *hwmon_dev; struct ntc_thermistor_platform_data *pdata; @@ -173,6 +215,8 @@ static const struct of_device_id ntc_match[] = { .data = &ntc_thermistor_id[3] }, { .compatible = "murata,ncp15wl333", .data = &ntc_thermistor_id[4] }, + { .compatible = "epcos,b57330v2103", + .data = &ntc_thermistor_id[5]}, /* Usage of vendor name "ntc" is deprecated */ { .compatible = "ntc,ncp15wb473", @@ -490,6 +534,10 @@ static int ntc_thermistor_probe(struct platform_device *pdev) data->comp = ncpXXwl333; data->n_comp = ARRAY_SIZE(ncpXXwl333); break; + case TYPE_B57330V2103: + data->comp = b57330v2103; + data->n_comp = ARRAY_SIZE(b57330v2103); + break; default: dev_err(&pdev->dev, "Unknown device type: %lu(%s)\n", pdev_id->driver_data, pdev_id->name); @@ -546,7 +594,7 @@ static struct platform_driver ntc_thermistor_driver = { module_platform_driver(ntc_thermistor_driver); -MODULE_DESCRIPTION("NTC Thermistor Driver from Murata"); +MODULE_DESCRIPTION("NTC Thermistor Driver"); MODULE_AUTHOR("MyungJoo Ham "); MODULE_LICENSE("GPL"); MODULE_ALIAS("platform:ntc-thermistor"); diff --git a/include/linux/platform_data/ntc_thermistor.h b/include/linux/platform_data/ntc_thermistor.h index c7285b575462..0a6de4ca4930 100644 --- a/include/linux/platform_data/ntc_thermistor.h +++ b/include/linux/platform_data/ntc_thermistor.h @@ -26,6 +26,7 @@ struct iio_channel; enum ntc_thermistor_type { TYPE_NCPXXWB473, TYPE_NCPXXWL333, + TYPE_B57330V2103, }; struct ntc_thermistor_platform_data { -- cgit v1.2.3 From 045c1391ec3b703ee00643fe9bda7cd65cd463e1 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Tue, 1 Jul 2014 22:31:44 +0800 Subject: hwmon: (ad7414) Convert to devm_hwmon_device_register_with_groups Use ATTRIBUTE_GROUPS macro and devm_hwmon_device_register_with_groups() to simplify the code a bit. Signed-off-by: Axel Lin Signed-off-by: Guenter Roeck --- drivers/hwmon/ad7414.c | 57 ++++++++++++++------------------------------------ 1 file changed, 16 insertions(+), 41 deletions(-) diff --git a/drivers/hwmon/ad7414.c b/drivers/hwmon/ad7414.c index 5d501adc3e54..763490acc0df 100644 --- a/drivers/hwmon/ad7414.c +++ b/drivers/hwmon/ad7414.c @@ -39,7 +39,7 @@ static u8 AD7414_REG_LIMIT[] = { AD7414_REG_T_HIGH, AD7414_REG_T_LOW }; struct ad7414_data { - struct device *hwmon_dev; + struct i2c_client *client; struct mutex lock; /* atomic read data updates */ char valid; /* !=0 if following fields are valid */ unsigned long next_update; /* In jiffies */ @@ -72,8 +72,8 @@ static inline int ad7414_write(struct i2c_client *client, u8 reg, u8 value) static struct ad7414_data *ad7414_update_device(struct device *dev) { - struct i2c_client *client = to_i2c_client(dev); - struct ad7414_data *data = i2c_get_clientdata(client); + struct ad7414_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; mutex_lock(&data->lock); @@ -127,8 +127,8 @@ static ssize_t set_max_min(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { - struct i2c_client *client = to_i2c_client(dev); - struct ad7414_data *data = i2c_get_clientdata(client); + struct ad7414_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; int index = to_sensor_dev_attr(attr)->index; u8 reg = AD7414_REG_LIMIT[index]; long temp; @@ -164,7 +164,7 @@ static ssize_t show_alarm(struct device *dev, struct device_attribute *attr, static SENSOR_DEVICE_ATTR(temp1_min_alarm, S_IRUGO, show_alarm, NULL, 3); static SENSOR_DEVICE_ATTR(temp1_max_alarm, S_IRUGO, show_alarm, NULL, 4); -static struct attribute *ad7414_attributes[] = { +static struct attribute *ad7414_attrs[] = { &sensor_dev_attr_temp1_input.dev_attr.attr, &sensor_dev_attr_temp1_max.dev_attr.attr, &sensor_dev_attr_temp1_min.dev_attr.attr, @@ -173,27 +173,25 @@ static struct attribute *ad7414_attributes[] = { NULL }; -static const struct attribute_group ad7414_group = { - .attrs = ad7414_attributes, -}; +ATTRIBUTE_GROUPS(ad7414); static int ad7414_probe(struct i2c_client *client, const struct i2c_device_id *dev_id) { + struct device *dev = &client->dev; struct ad7414_data *data; + struct device *hwmon_dev; int conf; - int err; if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA | I2C_FUNC_SMBUS_READ_WORD_DATA)) return -EOPNOTSUPP; - data = devm_kzalloc(&client->dev, sizeof(struct ad7414_data), - GFP_KERNEL); + data = devm_kzalloc(dev, sizeof(struct ad7414_data), GFP_KERNEL); if (!data) return -ENOMEM; - i2c_set_clientdata(client, data); + data->client = client; mutex_init(&data->lock); dev_info(&client->dev, "chip found\n"); @@ -201,38 +199,16 @@ static int ad7414_probe(struct i2c_client *client, /* Make sure the chip is powered up. */ conf = i2c_smbus_read_byte_data(client, AD7414_REG_CONF); if (conf < 0) - dev_warn(&client->dev, - "ad7414_probe unable to read config register.\n"); + dev_warn(dev, "ad7414_probe unable to read config register.\n"); else { conf &= ~(1 << 7); i2c_smbus_write_byte_data(client, AD7414_REG_CONF, conf); } - /* Register sysfs hooks */ - err = sysfs_create_group(&client->dev.kobj, &ad7414_group); - if (err) - return err; - - data->hwmon_dev = hwmon_device_register(&client->dev); - if (IS_ERR(data->hwmon_dev)) { - err = PTR_ERR(data->hwmon_dev); - goto exit_remove; - } - - return 0; - -exit_remove: - sysfs_remove_group(&client->dev.kobj, &ad7414_group); - return err; -} - -static int ad7414_remove(struct i2c_client *client) -{ - struct ad7414_data *data = i2c_get_clientdata(client); - - hwmon_device_unregister(data->hwmon_dev); - sysfs_remove_group(&client->dev.kobj, &ad7414_group); - return 0; + hwmon_dev = devm_hwmon_device_register_with_groups(dev, + client->name, + data, ad7414_groups); + return PTR_ERR_OR_ZERO(hwmon_dev); } static const struct i2c_device_id ad7414_id[] = { @@ -246,7 +222,6 @@ static struct i2c_driver ad7414_driver = { .name = "ad7414", }, .probe = ad7414_probe, - .remove = ad7414_remove, .id_table = ad7414_id, }; -- cgit v1.2.3 From 991763a91cbacf1e511ec9bea9ea8539e4d41f39 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Tue, 1 Jul 2014 22:39:08 +0800 Subject: hwmon: (ad7418) Avoid forward declaration Move ad7418_driver to proper place to avoid forward declaration. Also move ad7418_init_client() close to ad7418_probe(). Signed-off-by: Axel Lin Signed-off-by: Guenter Roeck --- drivers/hwmon/ad7418.c | 72 ++++++++++++++++++++++++-------------------------- 1 file changed, 34 insertions(+), 38 deletions(-) diff --git a/drivers/hwmon/ad7418.c b/drivers/hwmon/ad7418.c index 57d4a6295675..f7bf4299413d 100644 --- a/drivers/hwmon/ad7418.c +++ b/drivers/hwmon/ad7418.c @@ -55,44 +55,6 @@ struct ad7418_data { u16 in[4]; }; -static int ad7418_probe(struct i2c_client *client, - const struct i2c_device_id *id); -static int ad7418_remove(struct i2c_client *client); - -static const struct i2c_device_id ad7418_id[] = { - { "ad7416", ad7416 }, - { "ad7417", ad7417 }, - { "ad7418", ad7418 }, - { } -}; -MODULE_DEVICE_TABLE(i2c, ad7418_id); - -static struct i2c_driver ad7418_driver = { - .driver = { - .name = "ad7418", - }, - .probe = ad7418_probe, - .remove = ad7418_remove, - .id_table = ad7418_id, -}; - -static void ad7418_init_client(struct i2c_client *client) -{ - struct ad7418_data *data = i2c_get_clientdata(client); - - int reg = i2c_smbus_read_byte_data(client, AD7418_REG_CONF); - if (reg < 0) { - dev_err(&client->dev, "cannot read configuration register\n"); - } else { - dev_info(&client->dev, "configuring for mode 1\n"); - i2c_smbus_write_byte_data(client, AD7418_REG_CONF, reg & 0xfe); - - if (data->type == ad7417 || data->type == ad7418) - i2c_smbus_write_byte_data(client, - AD7418_REG_CONF2, 0x00); - } -} - static struct ad7418_data *ad7418_update_device(struct device *dev) { struct i2c_client *client = to_i2c_client(dev); @@ -219,6 +181,23 @@ static struct attribute *ad7418_attributes[] = { NULL }; +static void ad7418_init_client(struct i2c_client *client) +{ + struct ad7418_data *data = i2c_get_clientdata(client); + + int reg = i2c_smbus_read_byte_data(client, AD7418_REG_CONF); + if (reg < 0) { + dev_err(&client->dev, "cannot read configuration register\n"); + } else { + dev_info(&client->dev, "configuring for mode 1\n"); + i2c_smbus_write_byte_data(client, AD7418_REG_CONF, reg & 0xfe); + + if (data->type == ad7417 || data->type == ad7418) + i2c_smbus_write_byte_data(client, + AD7418_REG_CONF2, 0x00); + } +} + static int ad7418_probe(struct i2c_client *client, const struct i2c_device_id *id) { @@ -288,6 +267,23 @@ static int ad7418_remove(struct i2c_client *client) return 0; } +static const struct i2c_device_id ad7418_id[] = { + { "ad7416", ad7416 }, + { "ad7417", ad7417 }, + { "ad7418", ad7418 }, + { } +}; +MODULE_DEVICE_TABLE(i2c, ad7418_id); + +static struct i2c_driver ad7418_driver = { + .driver = { + .name = "ad7418", + }, + .probe = ad7418_probe, + .remove = ad7418_remove, + .id_table = ad7418_id, +}; + module_i2c_driver(ad7418_driver); MODULE_AUTHOR("Alessandro Zummo "); -- cgit v1.2.3 From 337076f9b6d8890682dcb7873869ef8dfa8febb2 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Tue, 1 Jul 2014 22:40:29 +0800 Subject: hwmon: (ad7418) Convert to devm_hwmon_device_register_with_groups Use ATTRIBUTE_GROUPS macro and devm_hwmon_device_register_with_groups() to simplify the code a bit. Signed-off-by: Axel Lin Signed-off-by: Guenter Roeck --- drivers/hwmon/ad7418.c | 65 +++++++++++++++++++------------------------------- 1 file changed, 24 insertions(+), 41 deletions(-) diff --git a/drivers/hwmon/ad7418.c b/drivers/hwmon/ad7418.c index f7bf4299413d..a01b731ba5d7 100644 --- a/drivers/hwmon/ad7418.c +++ b/drivers/hwmon/ad7418.c @@ -44,8 +44,7 @@ static const u8 AD7418_REG_TEMP[] = { AD7418_REG_TEMP_IN, AD7418_REG_TEMP_OS }; struct ad7418_data { - struct device *hwmon_dev; - struct attribute_group attrs; + struct i2c_client *client; enum chips type; struct mutex lock; int adc_max; /* number of ADC channels */ @@ -57,8 +56,8 @@ struct ad7418_data { static struct ad7418_data *ad7418_update_device(struct device *dev) { - struct i2c_client *client = to_i2c_client(dev); - struct ad7418_data *data = i2c_get_clientdata(client); + struct ad7418_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; mutex_lock(&data->lock); @@ -127,8 +126,8 @@ static ssize_t set_temp(struct device *dev, struct device_attribute *devattr, const char *buf, size_t count) { struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); - struct i2c_client *client = to_i2c_client(dev); - struct ad7418_data *data = i2c_get_clientdata(client); + struct ad7418_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; long temp; int ret = kstrtol(buf, 10, &temp); @@ -155,14 +154,15 @@ static SENSOR_DEVICE_ATTR(in2_input, S_IRUGO, show_adc, NULL, 1); static SENSOR_DEVICE_ATTR(in3_input, S_IRUGO, show_adc, NULL, 2); static SENSOR_DEVICE_ATTR(in4_input, S_IRUGO, show_adc, NULL, 3); -static struct attribute *ad7416_attributes[] = { +static struct attribute *ad7416_attrs[] = { &sensor_dev_attr_temp1_max.dev_attr.attr, &sensor_dev_attr_temp1_max_hyst.dev_attr.attr, &sensor_dev_attr_temp1_input.dev_attr.attr, NULL }; +ATTRIBUTE_GROUPS(ad7416); -static struct attribute *ad7417_attributes[] = { +static struct attribute *ad7417_attrs[] = { &sensor_dev_attr_temp1_max.dev_attr.attr, &sensor_dev_attr_temp1_max_hyst.dev_attr.attr, &sensor_dev_attr_temp1_input.dev_attr.attr, @@ -172,14 +172,16 @@ static struct attribute *ad7417_attributes[] = { &sensor_dev_attr_in4_input.dev_attr.attr, NULL }; +ATTRIBUTE_GROUPS(ad7417); -static struct attribute *ad7418_attributes[] = { +static struct attribute *ad7418_attrs[] = { &sensor_dev_attr_temp1_max.dev_attr.attr, &sensor_dev_attr_temp1_max_hyst.dev_attr.attr, &sensor_dev_attr_temp1_input.dev_attr.attr, &sensor_dev_attr_in1_input.dev_attr.attr, NULL }; +ATTRIBUTE_GROUPS(ad7418); static void ad7418_init_client(struct i2c_client *client) { @@ -201,70 +203,52 @@ static void ad7418_init_client(struct i2c_client *client) static int ad7418_probe(struct i2c_client *client, const struct i2c_device_id *id) { + struct device *dev = &client->dev; struct i2c_adapter *adapter = client->adapter; struct ad7418_data *data; - int err; + struct device *hwmon_dev; + const struct attribute_group **attr_groups = NULL; if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA | I2C_FUNC_SMBUS_WORD_DATA)) return -EOPNOTSUPP; - data = devm_kzalloc(&client->dev, sizeof(struct ad7418_data), - GFP_KERNEL); + data = devm_kzalloc(dev, sizeof(struct ad7418_data), GFP_KERNEL); if (!data) return -ENOMEM; i2c_set_clientdata(client, data); mutex_init(&data->lock); + data->client = client; data->type = id->driver_data; switch (data->type) { case ad7416: data->adc_max = 0; - data->attrs.attrs = ad7416_attributes; + attr_groups = ad7416_groups; break; case ad7417: data->adc_max = 4; - data->attrs.attrs = ad7417_attributes; + attr_groups = ad7417_groups; break; case ad7418: data->adc_max = 1; - data->attrs.attrs = ad7418_attributes; + attr_groups = ad7418_groups; break; } - dev_info(&client->dev, "%s chip found\n", client->name); + dev_info(dev, "%s chip found\n", client->name); /* Initialize the AD7418 chip */ ad7418_init_client(client); - /* Register sysfs hooks */ - err = sysfs_create_group(&client->dev.kobj, &data->attrs); - if (err) - return err; - - data->hwmon_dev = hwmon_device_register(&client->dev); - if (IS_ERR(data->hwmon_dev)) { - err = PTR_ERR(data->hwmon_dev); - goto exit_remove; - } - - return 0; - -exit_remove: - sysfs_remove_group(&client->dev.kobj, &data->attrs); - return err; -} - -static int ad7418_remove(struct i2c_client *client) -{ - struct ad7418_data *data = i2c_get_clientdata(client); - hwmon_device_unregister(data->hwmon_dev); - sysfs_remove_group(&client->dev.kobj, &data->attrs); - return 0; + hwmon_dev = devm_hwmon_device_register_with_groups(dev, + client->name, + data, attr_groups); + return PTR_ERR_OR_ZERO(hwmon_dev); } static const struct i2c_device_id ad7418_id[] = { @@ -280,7 +264,6 @@ static struct i2c_driver ad7418_driver = { .name = "ad7418", }, .probe = ad7418_probe, - .remove = ad7418_remove, .id_table = ad7418_id, }; -- cgit v1.2.3 From b12e484e8cc6d50706840a89d7db5a7a9354f315 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Sun, 29 Jun 2014 09:41:08 +0800 Subject: hwmon: (adm1029) Avoid forward declarations Reorder functions to avoid forward declarations. Signed-off-by: Axel Lin Signed-off-by: Guenter Roeck --- drivers/hwmon/adm1029.c | 171 ++++++++++++++++++++++-------------------------- 1 file changed, 78 insertions(+), 93 deletions(-) diff --git a/drivers/hwmon/adm1029.c b/drivers/hwmon/adm1029.c index 2804571b269e..eb52287c40d0 100644 --- a/drivers/hwmon/adm1029.c +++ b/drivers/hwmon/adm1029.c @@ -105,40 +105,6 @@ static const u8 ADM1029_REG_FAN_DIV[] = { ADM1029_REG_FAN2_CONFIG, }; -/* - * Functions declaration - */ - -static int adm1029_probe(struct i2c_client *client, - const struct i2c_device_id *id); -static int adm1029_detect(struct i2c_client *client, - struct i2c_board_info *info); -static int adm1029_remove(struct i2c_client *client); -static struct adm1029_data *adm1029_update_device(struct device *dev); -static int adm1029_init_client(struct i2c_client *client); - -/* - * Driver data (common to all clients) - */ - -static const struct i2c_device_id adm1029_id[] = { - { "adm1029", 0 }, - { } -}; -MODULE_DEVICE_TABLE(i2c, adm1029_id); - -static struct i2c_driver adm1029_driver = { - .class = I2C_CLASS_HWMON, - .driver = { - .name = "adm1029", - }, - .probe = adm1029_probe, - .remove = adm1029_remove, - .id_table = adm1029_id, - .detect = adm1029_detect, - .address_list = normal_i2c, -}; - /* * Client data (each client gets its own) */ @@ -155,6 +121,50 @@ struct adm1029_data { u8 fan_div[ARRAY_SIZE(ADM1029_REG_FAN_DIV)]; }; +/* + * function that update the status of the chips (temperature for example) + */ +static struct adm1029_data *adm1029_update_device(struct device *dev) +{ + struct i2c_client *client = to_i2c_client(dev); + struct adm1029_data *data = i2c_get_clientdata(client); + + mutex_lock(&data->update_lock); + /* + * Use the "cache" Luke, don't recheck values + * if there are already checked not a long time later + */ + if (time_after(jiffies, data->last_updated + HZ * 2) + || !data->valid) { + int nr; + + dev_dbg(&client->dev, "Updating adm1029 data\n"); + + for (nr = 0; nr < ARRAY_SIZE(ADM1029_REG_TEMP); nr++) { + data->temp[nr] = + i2c_smbus_read_byte_data(client, + ADM1029_REG_TEMP[nr]); + } + for (nr = 0; nr < ARRAY_SIZE(ADM1029_REG_FAN); nr++) { + data->fan[nr] = + i2c_smbus_read_byte_data(client, + ADM1029_REG_FAN[nr]); + } + for (nr = 0; nr < ARRAY_SIZE(ADM1029_REG_FAN_DIV); nr++) { + data->fan_div[nr] = + i2c_smbus_read_byte_data(client, + ADM1029_REG_FAN_DIV[nr]); + } + + data->last_updated = jiffies; + data->valid = 1; + } + + mutex_unlock(&data->update_lock); + + return data; +} + /* * Sysfs stuff */ @@ -340,6 +350,24 @@ static int adm1029_detect(struct i2c_client *client, return 0; } +static int adm1029_init_client(struct i2c_client *client) +{ + u8 config; + + config = i2c_smbus_read_byte_data(client, ADM1029_REG_CONFIG); + if ((config & 0x10) == 0) { + i2c_smbus_write_byte_data(client, ADM1029_REG_CONFIG, + config | 0x10); + } + /* recheck config */ + config = i2c_smbus_read_byte_data(client, ADM1029_REG_CONFIG); + if ((config & 0x10) == 0) { + dev_err(&client->dev, "Initialization failed!\n"); + return 0; + } + return 1; +} + static int adm1029_probe(struct i2c_client *client, const struct i2c_device_id *id) { @@ -379,23 +407,6 @@ static int adm1029_probe(struct i2c_client *client, return err; } -static int adm1029_init_client(struct i2c_client *client) -{ - u8 config; - config = i2c_smbus_read_byte_data(client, ADM1029_REG_CONFIG); - if ((config & 0x10) == 0) { - i2c_smbus_write_byte_data(client, ADM1029_REG_CONFIG, - config | 0x10); - } - /* recheck config */ - config = i2c_smbus_read_byte_data(client, ADM1029_REG_CONFIG); - if ((config & 0x10) == 0) { - dev_err(&client->dev, "Initialization failed!\n"); - return 0; - } - return 1; -} - static int adm1029_remove(struct i2c_client *client) { struct adm1029_data *data = i2c_get_clientdata(client); @@ -406,49 +417,23 @@ static int adm1029_remove(struct i2c_client *client) return 0; } -/* - * function that update the status of the chips (temperature for example) - */ -static struct adm1029_data *adm1029_update_device(struct device *dev) -{ - struct i2c_client *client = to_i2c_client(dev); - struct adm1029_data *data = i2c_get_clientdata(client); - - mutex_lock(&data->update_lock); - /* - * Use the "cache" Luke, don't recheck values - * if there are already checked not a long time later - */ - if (time_after(jiffies, data->last_updated + HZ * 2) - || !data->valid) { - int nr; - - dev_dbg(&client->dev, "Updating adm1029 data\n"); - - for (nr = 0; nr < ARRAY_SIZE(ADM1029_REG_TEMP); nr++) { - data->temp[nr] = - i2c_smbus_read_byte_data(client, - ADM1029_REG_TEMP[nr]); - } - for (nr = 0; nr < ARRAY_SIZE(ADM1029_REG_FAN); nr++) { - data->fan[nr] = - i2c_smbus_read_byte_data(client, - ADM1029_REG_FAN[nr]); - } - for (nr = 0; nr < ARRAY_SIZE(ADM1029_REG_FAN_DIV); nr++) { - data->fan_div[nr] = - i2c_smbus_read_byte_data(client, - ADM1029_REG_FAN_DIV[nr]); - } - - data->last_updated = jiffies; - data->valid = 1; - } - - mutex_unlock(&data->update_lock); +static const struct i2c_device_id adm1029_id[] = { + { "adm1029", 0 }, + { } +}; +MODULE_DEVICE_TABLE(i2c, adm1029_id); - return data; -} +static struct i2c_driver adm1029_driver = { + .class = I2C_CLASS_HWMON, + .driver = { + .name = "adm1029", + }, + .probe = adm1029_probe, + .remove = adm1029_remove, + .id_table = adm1029_id, + .detect = adm1029_detect, + .address_list = normal_i2c, +}; module_i2c_driver(adm1029_driver); -- cgit v1.2.3 From 4fd5233f82278df58b523b20f1f21967fe7a6c29 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Sun, 29 Jun 2014 09:42:17 +0800 Subject: hwmon: (adm1029) Convert to devm_hwmon_device_register_with_groups Use ATTRIBUTE_GROUPS macro and devm_hwmon_device_register_with_groups() to simplify the code a bit. Signed-off-by: Axel Lin Signed-off-by: Guenter Roeck --- drivers/hwmon/adm1029.c | 55 ++++++++++++++----------------------------------- 1 file changed, 15 insertions(+), 40 deletions(-) diff --git a/drivers/hwmon/adm1029.c b/drivers/hwmon/adm1029.c index eb52287c40d0..8c5cdb560258 100644 --- a/drivers/hwmon/adm1029.c +++ b/drivers/hwmon/adm1029.c @@ -110,7 +110,7 @@ static const u8 ADM1029_REG_FAN_DIV[] = { */ struct adm1029_data { - struct device *hwmon_dev; + struct i2c_client *client; struct mutex update_lock; char valid; /* zero until following fields are valid */ unsigned long last_updated; /* in jiffies */ @@ -126,8 +126,8 @@ struct adm1029_data { */ static struct adm1029_data *adm1029_update_device(struct device *dev) { - struct i2c_client *client = to_i2c_client(dev); - struct adm1029_data *data = i2c_get_clientdata(client); + struct adm1029_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; mutex_lock(&data->update_lock); /* @@ -207,8 +207,8 @@ show_fan_div(struct device *dev, struct device_attribute *devattr, char *buf) static ssize_t set_fan_div(struct device *dev, struct device_attribute *devattr, const char *buf, size_t count) { - struct i2c_client *client = to_i2c_client(dev); - struct adm1029_data *data = i2c_get_clientdata(client); + struct adm1029_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); u8 reg; long val; @@ -280,7 +280,7 @@ static SENSOR_DEVICE_ATTR(fan1_div, S_IRUGO | S_IWUSR, static SENSOR_DEVICE_ATTR(fan2_div, S_IRUGO | S_IWUSR, show_fan_div, set_fan_div, 1); -static struct attribute *adm1029_attributes[] = { +static struct attribute *adm1029_attrs[] = { &sensor_dev_attr_temp1_input.dev_attr.attr, &sensor_dev_attr_temp1_min.dev_attr.attr, &sensor_dev_attr_temp1_max.dev_attr.attr, @@ -299,9 +299,7 @@ static struct attribute *adm1029_attributes[] = { NULL }; -static const struct attribute_group adm1029_group = { - .attrs = adm1029_attributes, -}; +ATTRIBUTE_GROUPS(adm1029); /* * Real code @@ -371,15 +369,15 @@ static int adm1029_init_client(struct i2c_client *client) static int adm1029_probe(struct i2c_client *client, const struct i2c_device_id *id) { + struct device *dev = &client->dev; struct adm1029_data *data; - int err; + struct device *hwmon_dev; - data = devm_kzalloc(&client->dev, sizeof(struct adm1029_data), - GFP_KERNEL); + data = devm_kzalloc(dev, sizeof(struct adm1029_data), GFP_KERNEL); if (!data) return -ENOMEM; - i2c_set_clientdata(client, data); + data->client = client; mutex_init(&data->update_lock); /* @@ -389,32 +387,10 @@ static int adm1029_probe(struct i2c_client *client, if (adm1029_init_client(client) == 0) return -ENODEV; - /* Register sysfs hooks */ - err = sysfs_create_group(&client->dev.kobj, &adm1029_group); - if (err) - return err; - - data->hwmon_dev = hwmon_device_register(&client->dev); - if (IS_ERR(data->hwmon_dev)) { - err = PTR_ERR(data->hwmon_dev); - goto exit_remove_files; - } - - return 0; - - exit_remove_files: - sysfs_remove_group(&client->dev.kobj, &adm1029_group); - return err; -} - -static int adm1029_remove(struct i2c_client *client) -{ - struct adm1029_data *data = i2c_get_clientdata(client); - - hwmon_device_unregister(data->hwmon_dev); - sysfs_remove_group(&client->dev.kobj, &adm1029_group); - - return 0; + hwmon_dev = devm_hwmon_device_register_with_groups(dev, client->name, + data, + adm1029_groups); + return PTR_ERR_OR_ZERO(hwmon_dev); } static const struct i2c_device_id adm1029_id[] = { @@ -429,7 +405,6 @@ static struct i2c_driver adm1029_driver = { .name = "adm1029", }, .probe = adm1029_probe, - .remove = adm1029_remove, .id_table = adm1029_id, .detect = adm1029_detect, .address_list = normal_i2c, -- cgit v1.2.3 From 28e6274d8fa67ecb468eaa219c45595384e3bda8 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Sun, 29 Jun 2014 10:32:36 +0800 Subject: hwmon: (amc6821) Avoid forward declaration Reorder functions to avoid forward declaration. Signed-off-by: Axel Lin Signed-off-by: Guenter Roeck --- drivers/hwmon/amc6821.c | 360 +++++++++++++++++++++--------------------------- 1 file changed, 154 insertions(+), 206 deletions(-) diff --git a/drivers/hwmon/amc6821.c b/drivers/hwmon/amc6821.c index 8a67ec6279a4..29c17fcc487b 100644 --- a/drivers/hwmon/amc6821.c +++ b/drivers/hwmon/amc6821.c @@ -21,7 +21,6 @@ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ - #include /* Needed for KERN_INFO */ #include #include @@ -33,7 +32,6 @@ #include #include - /* * Addresses to scan. */ @@ -41,8 +39,6 @@ static const unsigned short normal_i2c[] = {0x18, 0x19, 0x1a, 0x2c, 0x2d, 0x2e, 0x4c, 0x4d, 0x4e, I2C_CLIENT_END}; - - /* * Insmod parameters */ @@ -53,7 +49,6 @@ module_param(pwminv, int, S_IRUGO); static int init = 1; /*Power-on initialization.*/ module_param(init, int, S_IRUGO); - enum chips { amc6821 }; #define AMC6821_REG_DEV_ID 0x3D @@ -152,40 +147,6 @@ static const u8 fan_reg_hi[] = {AMC6821_REG_TDATA_HI, AMC6821_REG_TACH_LLIMITH, AMC6821_REG_TACH_HLIMITH, }; -static int amc6821_probe( - struct i2c_client *client, - const struct i2c_device_id *id); -static int amc6821_detect( - struct i2c_client *client, - struct i2c_board_info *info); -static int amc6821_init_client(struct i2c_client *client); -static int amc6821_remove(struct i2c_client *client); -static struct amc6821_data *amc6821_update_device(struct device *dev); - -/* - * Driver data (common to all clients) - */ - -static const struct i2c_device_id amc6821_id[] = { - { "amc6821", amc6821 }, - { } -}; - -MODULE_DEVICE_TABLE(i2c, amc6821_id); - -static struct i2c_driver amc6821_driver = { - .class = I2C_CLASS_HWMON, - .driver = { - .name = "amc6821", - }, - .probe = amc6821_probe, - .remove = amc6821_remove, - .id_table = amc6821_id, - .detect = amc6821_detect, - .address_list = normal_i2c, -}; - - /* * Client data (each client gets its own) */ @@ -213,6 +174,108 @@ struct amc6821_data { u8 stat2; }; +static struct amc6821_data *amc6821_update_device(struct device *dev) +{ + struct i2c_client *client = to_i2c_client(dev); + struct amc6821_data *data = i2c_get_clientdata(client); + int timeout = HZ; + u8 reg; + int i; + + mutex_lock(&data->update_lock); + + if (time_after(jiffies, data->last_updated + timeout) || + !data->valid) { + + for (i = 0; i < TEMP_IDX_LEN; i++) + data->temp[i] = i2c_smbus_read_byte_data(client, + temp_reg[i]); + + data->stat1 = i2c_smbus_read_byte_data(client, + AMC6821_REG_STAT1); + data->stat2 = i2c_smbus_read_byte_data(client, + AMC6821_REG_STAT2); + + data->pwm1 = i2c_smbus_read_byte_data(client, + AMC6821_REG_DCY); + for (i = 0; i < FAN1_IDX_LEN; i++) { + data->fan[i] = i2c_smbus_read_byte_data( + client, + fan_reg_low[i]); + data->fan[i] += i2c_smbus_read_byte_data( + client, + fan_reg_hi[i]) << 8; + } + data->fan1_div = i2c_smbus_read_byte_data(client, + AMC6821_REG_CONF4); + data->fan1_div = data->fan1_div & AMC6821_CONF4_PSPR ? 4 : 2; + + data->pwm1_auto_point_pwm[0] = 0; + data->pwm1_auto_point_pwm[2] = 255; + data->pwm1_auto_point_pwm[1] = i2c_smbus_read_byte_data(client, + AMC6821_REG_DCY_LOW_TEMP); + + data->temp1_auto_point_temp[0] = + i2c_smbus_read_byte_data(client, + AMC6821_REG_PSV_TEMP); + data->temp2_auto_point_temp[0] = + data->temp1_auto_point_temp[0]; + reg = i2c_smbus_read_byte_data(client, + AMC6821_REG_LTEMP_FAN_CTRL); + data->temp1_auto_point_temp[1] = (reg & 0xF8) >> 1; + reg &= 0x07; + reg = 0x20 >> reg; + if (reg > 0) + data->temp1_auto_point_temp[2] = + data->temp1_auto_point_temp[1] + + (data->pwm1_auto_point_pwm[2] - + data->pwm1_auto_point_pwm[1]) / reg; + else + data->temp1_auto_point_temp[2] = 255; + + reg = i2c_smbus_read_byte_data(client, + AMC6821_REG_RTEMP_FAN_CTRL); + data->temp2_auto_point_temp[1] = (reg & 0xF8) >> 1; + reg &= 0x07; + reg = 0x20 >> reg; + if (reg > 0) + data->temp2_auto_point_temp[2] = + data->temp2_auto_point_temp[1] + + (data->pwm1_auto_point_pwm[2] - + data->pwm1_auto_point_pwm[1]) / reg; + else + data->temp2_auto_point_temp[2] = 255; + + reg = i2c_smbus_read_byte_data(client, AMC6821_REG_CONF1); + reg = (reg >> 5) & 0x3; + switch (reg) { + case 0: /*open loop: software sets pwm1*/ + data->pwm1_auto_channels_temp = 0; + data->pwm1_enable = 1; + break; + case 2: /*closed loop: remote T (temp2)*/ + data->pwm1_auto_channels_temp = 2; + data->pwm1_enable = 2; + break; + case 3: /*closed loop: local and remote T (temp2)*/ + data->pwm1_auto_channels_temp = 3; + data->pwm1_enable = 3; + break; + case 1: /* + * semi-open loop: software sets rpm, chip controls + * pwm1, currently not implemented + */ + data->pwm1_auto_channels_temp = 0; + data->pwm1_enable = 0; + break; + } + + data->last_updated = jiffies; + data->valid = 1; + } + mutex_unlock(&data->update_lock); + return data; +} static ssize_t get_temp( struct device *dev, @@ -225,8 +288,6 @@ static ssize_t get_temp( return sprintf(buf, "%d\n", data->temp[ix] * 1000); } - - static ssize_t set_temp( struct device *dev, struct device_attribute *attr, @@ -253,9 +314,6 @@ static ssize_t set_temp( return count; } - - - static ssize_t get_temp_alarm( struct device *dev, struct device_attribute *devattr, @@ -294,9 +352,6 @@ static ssize_t get_temp_alarm( return sprintf(buf, "0"); } - - - static ssize_t get_temp2_fault( struct device *dev, struct device_attribute *devattr, @@ -396,7 +451,6 @@ unlock: return count; } - static ssize_t get_pwm1_auto_channels_temp( struct device *dev, struct device_attribute *devattr, @@ -406,7 +460,6 @@ static ssize_t get_pwm1_auto_channels_temp( return sprintf(buf, "%d\n", data->pwm1_auto_channels_temp); } - static ssize_t get_temp_auto_point_temp( struct device *dev, struct device_attribute *devattr, @@ -428,7 +481,6 @@ static ssize_t get_temp_auto_point_temp( } } - static ssize_t get_pwm1_auto_point_pwm( struct device *dev, struct device_attribute *devattr, @@ -439,7 +491,6 @@ static ssize_t get_pwm1_auto_point_pwm( return sprintf(buf, "%d\n", data->pwm1_auto_point_pwm[ix]); } - static inline ssize_t set_slope_register(struct i2c_client *client, u8 reg, u8 dpwm, @@ -462,8 +513,6 @@ static inline ssize_t set_slope_register(struct i2c_client *client, return 0; } - - static ssize_t set_temp_auto_point_temp( struct device *dev, struct device_attribute *attr, @@ -537,8 +586,6 @@ EXIT: return count; } - - static ssize_t set_pwm1_auto_point_pwm( struct device *dev, struct device_attribute *attr, @@ -591,8 +638,6 @@ static ssize_t get_fan( return sprintf(buf, "%d\n", (int)(6000000 / data->fan[ix])); } - - static ssize_t get_fan1_fault( struct device *dev, struct device_attribute *devattr, @@ -605,8 +650,6 @@ static ssize_t get_fan1_fault( return sprintf(buf, "0"); } - - static ssize_t set_fan( struct device *dev, struct device_attribute *attr, @@ -639,8 +682,6 @@ EXIT: return count; } - - static ssize_t get_fan1_div( struct device *dev, struct device_attribute *devattr, @@ -693,8 +734,6 @@ EXIT: return count; } - - static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, get_temp, NULL, IDX_TEMP1_INPUT); static SENSOR_DEVICE_ATTR(temp1_min, S_IRUGO | S_IWUSR, get_temp, @@ -759,8 +798,6 @@ static SENSOR_DEVICE_ATTR_2(temp2_auto_point2_temp, S_IWUSR | S_IRUGO, static SENSOR_DEVICE_ATTR_2(temp2_auto_point3_temp, S_IWUSR | S_IRUGO, get_temp_auto_point_temp, set_temp_auto_point_temp, 2, 2); - - static struct attribute *amc6821_attrs[] = { &sensor_dev_attr_temp1_input.dev_attr.attr, &sensor_dev_attr_temp1_min.dev_attr.attr, @@ -801,8 +838,6 @@ static struct attribute_group amc6821_attr_grp = { .attrs = amc6821_attrs, }; - - /* Return 0 if detection is successful, -ENODEV otherwise */ static int amc6821_detect( struct i2c_client *client, @@ -849,53 +884,6 @@ static int amc6821_detect( return 0; } -static int amc6821_probe( - struct i2c_client *client, - const struct i2c_device_id *id) -{ - struct amc6821_data *data; - int err; - - data = devm_kzalloc(&client->dev, sizeof(struct amc6821_data), - GFP_KERNEL); - if (!data) - return -ENOMEM; - - i2c_set_clientdata(client, data); - mutex_init(&data->update_lock); - - /* - * Initialize the amc6821 chip - */ - err = amc6821_init_client(client); - if (err) - return err; - - err = sysfs_create_group(&client->dev.kobj, &amc6821_attr_grp); - if (err) - return err; - - data->hwmon_dev = hwmon_device_register(&client->dev); - if (!IS_ERR(data->hwmon_dev)) - return 0; - - err = PTR_ERR(data->hwmon_dev); - dev_err(&client->dev, "error registering hwmon device.\n"); - sysfs_remove_group(&client->dev.kobj, &amc6821_attr_grp); - return err; -} - -static int amc6821_remove(struct i2c_client *client) -{ - struct amc6821_data *data = i2c_get_clientdata(client); - - hwmon_device_unregister(data->hwmon_dev); - sysfs_remove_group(&client->dev.kobj, &amc6821_attr_grp); - - return 0; -} - - static int amc6821_init_client(struct i2c_client *client) { int config; @@ -982,110 +970,70 @@ static int amc6821_init_client(struct i2c_client *client) return 0; } - -static struct amc6821_data *amc6821_update_device(struct device *dev) +static int amc6821_probe(struct i2c_client *client, + const struct i2c_device_id *id) { - struct i2c_client *client = to_i2c_client(dev); - struct amc6821_data *data = i2c_get_clientdata(client); - int timeout = HZ; - u8 reg; - int i; - - mutex_lock(&data->update_lock); + struct amc6821_data *data; + int err; - if (time_after(jiffies, data->last_updated + timeout) || - !data->valid) { + data = devm_kzalloc(&client->dev, sizeof(struct amc6821_data), + GFP_KERNEL); + if (!data) + return -ENOMEM; - for (i = 0; i < TEMP_IDX_LEN; i++) - data->temp[i] = i2c_smbus_read_byte_data(client, - temp_reg[i]); + i2c_set_clientdata(client, data); + mutex_init(&data->update_lock); - data->stat1 = i2c_smbus_read_byte_data(client, - AMC6821_REG_STAT1); - data->stat2 = i2c_smbus_read_byte_data(client, - AMC6821_REG_STAT2); + /* + * Initialize the amc6821 chip + */ + err = amc6821_init_client(client); + if (err) + return err; - data->pwm1 = i2c_smbus_read_byte_data(client, - AMC6821_REG_DCY); - for (i = 0; i < FAN1_IDX_LEN; i++) { - data->fan[i] = i2c_smbus_read_byte_data( - client, - fan_reg_low[i]); - data->fan[i] += i2c_smbus_read_byte_data( - client, - fan_reg_hi[i]) << 8; - } - data->fan1_div = i2c_smbus_read_byte_data(client, - AMC6821_REG_CONF4); - data->fan1_div = data->fan1_div & AMC6821_CONF4_PSPR ? 4 : 2; + err = sysfs_create_group(&client->dev.kobj, &amc6821_attr_grp); + if (err) + return err; - data->pwm1_auto_point_pwm[0] = 0; - data->pwm1_auto_point_pwm[2] = 255; - data->pwm1_auto_point_pwm[1] = i2c_smbus_read_byte_data(client, - AMC6821_REG_DCY_LOW_TEMP); + data->hwmon_dev = hwmon_device_register(&client->dev); + if (!IS_ERR(data->hwmon_dev)) + return 0; - data->temp1_auto_point_temp[0] = - i2c_smbus_read_byte_data(client, - AMC6821_REG_PSV_TEMP); - data->temp2_auto_point_temp[0] = - data->temp1_auto_point_temp[0]; - reg = i2c_smbus_read_byte_data(client, - AMC6821_REG_LTEMP_FAN_CTRL); - data->temp1_auto_point_temp[1] = (reg & 0xF8) >> 1; - reg &= 0x07; - reg = 0x20 >> reg; - if (reg > 0) - data->temp1_auto_point_temp[2] = - data->temp1_auto_point_temp[1] + - (data->pwm1_auto_point_pwm[2] - - data->pwm1_auto_point_pwm[1]) / reg; - else - data->temp1_auto_point_temp[2] = 255; + err = PTR_ERR(data->hwmon_dev); + dev_err(&client->dev, "error registering hwmon device.\n"); + sysfs_remove_group(&client->dev.kobj, &amc6821_attr_grp); + return err; +} - reg = i2c_smbus_read_byte_data(client, - AMC6821_REG_RTEMP_FAN_CTRL); - data->temp2_auto_point_temp[1] = (reg & 0xF8) >> 1; - reg &= 0x07; - reg = 0x20 >> reg; - if (reg > 0) - data->temp2_auto_point_temp[2] = - data->temp2_auto_point_temp[1] + - (data->pwm1_auto_point_pwm[2] - - data->pwm1_auto_point_pwm[1]) / reg; - else - data->temp2_auto_point_temp[2] = 255; +static int amc6821_remove(struct i2c_client *client) +{ + struct amc6821_data *data = i2c_get_clientdata(client); - reg = i2c_smbus_read_byte_data(client, AMC6821_REG_CONF1); - reg = (reg >> 5) & 0x3; - switch (reg) { - case 0: /*open loop: software sets pwm1*/ - data->pwm1_auto_channels_temp = 0; - data->pwm1_enable = 1; - break; - case 2: /*closed loop: remote T (temp2)*/ - data->pwm1_auto_channels_temp = 2; - data->pwm1_enable = 2; - break; - case 3: /*closed loop: local and remote T (temp2)*/ - data->pwm1_auto_channels_temp = 3; - data->pwm1_enable = 3; - break; - case 1: /* - * semi-open loop: software sets rpm, chip controls - * pwm1, currently not implemented - */ - data->pwm1_auto_channels_temp = 0; - data->pwm1_enable = 0; - break; - } + hwmon_device_unregister(data->hwmon_dev); + sysfs_remove_group(&client->dev.kobj, &amc6821_attr_grp); - data->last_updated = jiffies; - data->valid = 1; - } - mutex_unlock(&data->update_lock); - return data; + return 0; } +static const struct i2c_device_id amc6821_id[] = { + { "amc6821", amc6821 }, + { } +}; + +MODULE_DEVICE_TABLE(i2c, amc6821_id); + +static struct i2c_driver amc6821_driver = { + .class = I2C_CLASS_HWMON, + .driver = { + .name = "amc6821", + }, + .probe = amc6821_probe, + .remove = amc6821_remove, + .id_table = amc6821_id, + .detect = amc6821_detect, + .address_list = normal_i2c, +}; + module_i2c_driver(amc6821_driver); MODULE_LICENSE("GPL"); -- cgit v1.2.3 From 1276fae2a93142525580d6f6ab77105f4d7a0e09 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Sun, 29 Jun 2014 10:33:34 +0800 Subject: hwmon: (amc6821) Convert to devm_hwmon_device_register_with_groups Use ATTRIBUTE_GROUPS macro and devm_hwmon_device_register_with_groups() to simplify the code a bit. Signed-off-by: Axel Lin Signed-off-by: Guenter Roeck --- drivers/hwmon/amc6821.c | 70 ++++++++++++++++++------------------------------- 1 file changed, 25 insertions(+), 45 deletions(-) diff --git a/drivers/hwmon/amc6821.c b/drivers/hwmon/amc6821.c index 29c17fcc487b..12e851a5af48 100644 --- a/drivers/hwmon/amc6821.c +++ b/drivers/hwmon/amc6821.c @@ -152,7 +152,7 @@ static const u8 fan_reg_hi[] = {AMC6821_REG_TDATA_HI, */ struct amc6821_data { - struct device *hwmon_dev; + struct i2c_client *client; struct mutex update_lock; char valid; /* zero until following fields are valid */ unsigned long last_updated; /* in jiffies */ @@ -176,8 +176,8 @@ struct amc6821_data { static struct amc6821_data *amc6821_update_device(struct device *dev) { - struct i2c_client *client = to_i2c_client(dev); - struct amc6821_data *data = i2c_get_clientdata(client); + struct amc6821_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; int timeout = HZ; u8 reg; int i; @@ -294,8 +294,8 @@ static ssize_t set_temp( const char *buf, size_t count) { - struct i2c_client *client = to_i2c_client(dev); - struct amc6821_data *data = i2c_get_clientdata(client); + struct amc6821_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; int ix = to_sensor_dev_attr(attr)->index; long val; @@ -379,8 +379,8 @@ static ssize_t set_pwm1( const char *buf, size_t count) { - struct i2c_client *client = to_i2c_client(dev); - struct amc6821_data *data = i2c_get_clientdata(client); + struct amc6821_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; long val; int ret = kstrtol(buf, 10, &val); if (ret) @@ -408,8 +408,8 @@ static ssize_t set_pwm1_enable( const char *buf, size_t count) { - struct i2c_client *client = to_i2c_client(dev); - struct amc6821_data *data = i2c_get_clientdata(client); + struct amc6821_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; long val; int config = kstrtol(buf, 10, &val); if (config) @@ -519,8 +519,8 @@ static ssize_t set_temp_auto_point_temp( const char *buf, size_t count) { - struct i2c_client *client = to_i2c_client(dev); struct amc6821_data *data = amc6821_update_device(dev); + struct i2c_client *client = data->client; int ix = to_sensor_dev_attr_2(attr)->index; int nr = to_sensor_dev_attr_2(attr)->nr; u8 *ptemp; @@ -592,8 +592,8 @@ static ssize_t set_pwm1_auto_point_pwm( const char *buf, size_t count) { - struct i2c_client *client = to_i2c_client(dev); - struct amc6821_data *data = i2c_get_clientdata(client); + struct amc6821_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; int dpwm; long val; int ret = kstrtol(buf, 10, &val); @@ -655,8 +655,8 @@ static ssize_t set_fan( struct device_attribute *attr, const char *buf, size_t count) { - struct i2c_client *client = to_i2c_client(dev); - struct amc6821_data *data = i2c_get_clientdata(client); + struct amc6821_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; long val; int ix = to_sensor_dev_attr(attr)->index; int ret = kstrtol(buf, 10, &val); @@ -696,8 +696,8 @@ static ssize_t set_fan1_div( struct device_attribute *attr, const char *buf, size_t count) { - struct i2c_client *client = to_i2c_client(dev); - struct amc6821_data *data = i2c_get_clientdata(client); + struct amc6821_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; long val; int config = kstrtol(buf, 10, &val); if (config) @@ -834,9 +834,7 @@ static struct attribute *amc6821_attrs[] = { NULL }; -static struct attribute_group amc6821_attr_grp = { - .attrs = amc6821_attrs, -}; +ATTRIBUTE_GROUPS(amc6821); /* Return 0 if detection is successful, -ENODEV otherwise */ static int amc6821_detect( @@ -973,15 +971,16 @@ static int amc6821_init_client(struct i2c_client *client) static int amc6821_probe(struct i2c_client *client, const struct i2c_device_id *id) { + struct device *dev = &client->dev; struct amc6821_data *data; + struct device *hwmon_dev; int err; - data = devm_kzalloc(&client->dev, sizeof(struct amc6821_data), - GFP_KERNEL); + data = devm_kzalloc(dev, sizeof(struct amc6821_data), GFP_KERNEL); if (!data) return -ENOMEM; - i2c_set_clientdata(client, data); + data->client = client; mutex_init(&data->update_lock); /* @@ -991,28 +990,10 @@ static int amc6821_probe(struct i2c_client *client, if (err) return err; - err = sysfs_create_group(&client->dev.kobj, &amc6821_attr_grp); - if (err) - return err; - - data->hwmon_dev = hwmon_device_register(&client->dev); - if (!IS_ERR(data->hwmon_dev)) - return 0; - - err = PTR_ERR(data->hwmon_dev); - dev_err(&client->dev, "error registering hwmon device.\n"); - sysfs_remove_group(&client->dev.kobj, &amc6821_attr_grp); - return err; -} - -static int amc6821_remove(struct i2c_client *client) -{ - struct amc6821_data *data = i2c_get_clientdata(client); - - hwmon_device_unregister(data->hwmon_dev); - sysfs_remove_group(&client->dev.kobj, &amc6821_attr_grp); - - return 0; + hwmon_dev = devm_hwmon_device_register_with_groups(dev, client->name, + data, + amc6821_groups); + return PTR_ERR_OR_ZERO(hwmon_dev); } static const struct i2c_device_id amc6821_id[] = { @@ -1028,7 +1009,6 @@ static struct i2c_driver amc6821_driver = { .name = "amc6821", }, .probe = amc6821_probe, - .remove = amc6821_remove, .id_table = amc6821_id, .detect = amc6821_detect, .address_list = normal_i2c, -- cgit v1.2.3 From 7b3dadc4b391c878c26917e23e2af8653dd13db3 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Sun, 29 Jun 2014 11:32:01 +0800 Subject: hwmon: (emc6w201) Convert to devm_hwmon_device_register_with_groups Use ATTRIBUTE_GROUPS macro and devm_hwmon_device_register_with_groups() to simplify the code a bit. Signed-off-by: Axel Lin Signed-off-by: Guenter Roeck --- drivers/hwmon/emc6w201.c | 64 ++++++++++++++---------------------------------- 1 file changed, 19 insertions(+), 45 deletions(-) diff --git a/drivers/hwmon/emc6w201.c b/drivers/hwmon/emc6w201.c index f76a74cb6dc4..e87da902f3ae 100644 --- a/drivers/hwmon/emc6w201.c +++ b/drivers/hwmon/emc6w201.c @@ -56,7 +56,7 @@ enum subfeature { input, min, max }; */ struct emc6w201_data { - struct device *hwmon_dev; + struct i2c_client *client; struct mutex update_lock; char valid; /* zero until following fields are valid */ unsigned long last_updated; /* in jiffies */ @@ -134,8 +134,8 @@ static int emc6w201_write8(struct i2c_client *client, u8 reg, u8 val) static struct emc6w201_data *emc6w201_update_device(struct device *dev) { - struct i2c_client *client = to_i2c_client(dev); - struct emc6w201_data *data = i2c_get_clientdata(client); + struct emc6w201_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; int nr; mutex_lock(&data->update_lock); @@ -203,8 +203,8 @@ static ssize_t show_in(struct device *dev, struct device_attribute *devattr, static ssize_t set_in(struct device *dev, struct device_attribute *devattr, const char *buf, size_t count) { - struct i2c_client *client = to_i2c_client(dev); - struct emc6w201_data *data = i2c_get_clientdata(client); + struct emc6w201_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; int sf = to_sensor_dev_attr_2(devattr)->index; int nr = to_sensor_dev_attr_2(devattr)->nr; int err; @@ -240,8 +240,8 @@ static ssize_t show_temp(struct device *dev, struct device_attribute *devattr, static ssize_t set_temp(struct device *dev, struct device_attribute *devattr, const char *buf, size_t count) { - struct i2c_client *client = to_i2c_client(dev); - struct emc6w201_data *data = i2c_get_clientdata(client); + struct emc6w201_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; int sf = to_sensor_dev_attr_2(devattr)->index; int nr = to_sensor_dev_attr_2(devattr)->nr; int err; @@ -283,8 +283,8 @@ static ssize_t show_fan(struct device *dev, struct device_attribute *devattr, static ssize_t set_fan(struct device *dev, struct device_attribute *devattr, const char *buf, size_t count) { - struct i2c_client *client = to_i2c_client(dev); - struct emc6w201_data *data = i2c_get_clientdata(client); + struct emc6w201_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; int sf = to_sensor_dev_attr_2(devattr)->index; int nr = to_sensor_dev_attr_2(devattr)->nr; int err; @@ -388,7 +388,7 @@ static SENSOR_DEVICE_ATTR_2(fan5_input, S_IRUGO, show_fan, NULL, 4, input); static SENSOR_DEVICE_ATTR_2(fan5_min, S_IRUGO | S_IWUSR, show_fan, set_fan, 4, min); -static struct attribute *emc6w201_attributes[] = { +static struct attribute *emc6w201_attrs[] = { &sensor_dev_attr_in0_input.dev_attr.attr, &sensor_dev_attr_in0_min.dev_attr.attr, &sensor_dev_attr_in0_max.dev_attr.attr, @@ -440,9 +440,7 @@ static struct attribute *emc6w201_attributes[] = { NULL }; -static const struct attribute_group emc6w201_group = { - .attrs = emc6w201_attributes, -}; +ATTRIBUTE_GROUPS(emc6w201); /* * Driver interface @@ -488,44 +486,21 @@ static int emc6w201_detect(struct i2c_client *client, static int emc6w201_probe(struct i2c_client *client, const struct i2c_device_id *id) { + struct device *dev = &client->dev; struct emc6w201_data *data; - int err; + struct device *hwmon_dev; - data = devm_kzalloc(&client->dev, sizeof(struct emc6w201_data), - GFP_KERNEL); + data = devm_kzalloc(dev, sizeof(struct emc6w201_data), GFP_KERNEL); if (!data) return -ENOMEM; - i2c_set_clientdata(client, data); + data->client = client; mutex_init(&data->update_lock); - /* Create sysfs attribute */ - err = sysfs_create_group(&client->dev.kobj, &emc6w201_group); - if (err) - return err; - - /* Expose as a hwmon device */ - data->hwmon_dev = hwmon_device_register(&client->dev); - if (IS_ERR(data->hwmon_dev)) { - err = PTR_ERR(data->hwmon_dev); - goto exit_remove; - } - - return 0; - - exit_remove: - sysfs_remove_group(&client->dev.kobj, &emc6w201_group); - return err; -} - -static int emc6w201_remove(struct i2c_client *client) -{ - struct emc6w201_data *data = i2c_get_clientdata(client); - - hwmon_device_unregister(data->hwmon_dev); - sysfs_remove_group(&client->dev.kobj, &emc6w201_group); - - return 0; + hwmon_dev = devm_hwmon_device_register_with_groups(dev, client->name, + data, + emc6w201_groups); + return PTR_ERR_OR_ZERO(hwmon_dev); } static const struct i2c_device_id emc6w201_id[] = { @@ -540,7 +515,6 @@ static struct i2c_driver emc6w201_driver = { .name = "emc6w201", }, .probe = emc6w201_probe, - .remove = emc6w201_remove, .id_table = emc6w201_id, .detect = emc6w201_detect, .address_list = normal_i2c, -- cgit v1.2.3 From fa0efc4091e2299741a0391eeaadd36f335d942e Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Sun, 29 Jun 2014 15:00:59 +0800 Subject: hwmon: (htu21) Convert to devm_hwmon_device_register_with_groups Use ATTRIBUTE_GROUPS macro and devm_hwmon_device_register_with_groups() to simplify the code a bit. Signed-off-by: Axel Lin Signed-off-by: Guenter Roeck --- drivers/hwmon/htu21.c | 69 ++++++++++++++++----------------------------------- 1 file changed, 22 insertions(+), 47 deletions(-) diff --git a/drivers/hwmon/htu21.c b/drivers/hwmon/htu21.c index 839086e0e951..4c3bbb72f82a 100644 --- a/drivers/hwmon/htu21.c +++ b/drivers/hwmon/htu21.c @@ -31,7 +31,7 @@ #define HTU21_RH_MEASUREMENT_HM 0xE5 struct htu21 { - struct device *hwmon_dev; + struct i2c_client *client; struct mutex lock; bool valid; unsigned long last_update; @@ -59,10 +59,11 @@ static inline int htu21_rh_ticks_to_per_cent_mille(int ticks) return ((15625 * ticks) >> 13) - 6000; } -static int htu21_update_measurements(struct i2c_client *client) +static int htu21_update_measurements(struct device *dev) { + struct htu21 *htu21 = dev_get_drvdata(dev); + struct i2c_client *client = htu21->client; int ret = 0; - struct htu21 *htu21 = i2c_get_clientdata(client); mutex_lock(&htu21->lock); @@ -90,9 +91,10 @@ out: static ssize_t htu21_show_temperature(struct device *dev, struct device_attribute *attr, char *buf) { - struct i2c_client *client = to_i2c_client(dev); - struct htu21 *htu21 = i2c_get_clientdata(client); - int ret = htu21_update_measurements(client); + struct htu21 *htu21 = dev_get_drvdata(dev); + int ret; + + ret = htu21_update_measurements(dev); if (ret < 0) return ret; return sprintf(buf, "%d\n", htu21->temperature); @@ -101,9 +103,10 @@ static ssize_t htu21_show_temperature(struct device *dev, static ssize_t htu21_show_humidity(struct device *dev, struct device_attribute *attr, char *buf) { - struct i2c_client *client = to_i2c_client(dev); - struct htu21 *htu21 = i2c_get_clientdata(client); - int ret = htu21_update_measurements(client); + struct htu21 *htu21 = dev_get_drvdata(dev); + int ret; + + ret = htu21_update_measurements(dev); if (ret < 0) return ret; return sprintf(buf, "%d\n", htu21->humidity); @@ -114,21 +117,20 @@ static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, static SENSOR_DEVICE_ATTR(humidity1_input, S_IRUGO, htu21_show_humidity, NULL, 0); -static struct attribute *htu21_attributes[] = { +static struct attribute *htu21_attrs[] = { &sensor_dev_attr_temp1_input.dev_attr.attr, &sensor_dev_attr_humidity1_input.dev_attr.attr, NULL }; -static const struct attribute_group htu21_group = { - .attrs = htu21_attributes, -}; +ATTRIBUTE_GROUPS(htu21); static int htu21_probe(struct i2c_client *client, const struct i2c_device_id *id) { + struct device *dev = &client->dev; struct htu21 *htu21; - int err; + struct device *hwmon_dev; if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_READ_WORD_DATA)) { @@ -137,43 +139,17 @@ static int htu21_probe(struct i2c_client *client, return -ENODEV; } - htu21 = devm_kzalloc(&client->dev, sizeof(*htu21), GFP_KERNEL); + htu21 = devm_kzalloc(dev, sizeof(*htu21), GFP_KERNEL); if (!htu21) return -ENOMEM; - i2c_set_clientdata(client, htu21); - + htu21->client = client; mutex_init(&htu21->lock); - err = sysfs_create_group(&client->dev.kobj, &htu21_group); - if (err) { - dev_dbg(&client->dev, "could not create sysfs files\n"); - return err; - } - htu21->hwmon_dev = hwmon_device_register(&client->dev); - if (IS_ERR(htu21->hwmon_dev)) { - dev_dbg(&client->dev, "unable to register hwmon device\n"); - err = PTR_ERR(htu21->hwmon_dev); - goto error; - } - - dev_info(&client->dev, "initialized\n"); - - return 0; - -error: - sysfs_remove_group(&client->dev.kobj, &htu21_group); - return err; -} - -static int htu21_remove(struct i2c_client *client) -{ - struct htu21 *htu21 = i2c_get_clientdata(client); - - hwmon_device_unregister(htu21->hwmon_dev); - sysfs_remove_group(&client->dev.kobj, &htu21_group); - - return 0; + hwmon_dev = devm_hwmon_device_register_with_groups(dev, client->name, + htu21, + htu21_groups); + return PTR_ERR_OR_ZERO(hwmon_dev); } static const struct i2c_device_id htu21_id[] = { @@ -188,7 +164,6 @@ static struct i2c_driver htu21_driver = { .name = "htu21", }, .probe = htu21_probe, - .remove = htu21_remove, .id_table = htu21_id, }; -- cgit v1.2.3 From 034b44b4a22371c5bcbfb602a5420f3b75939dd8 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Wed, 2 Jul 2014 08:42:18 +0800 Subject: hwmon: Make regmap configs const Signed-off-by: Axel Lin Signed-off-by: Guenter Roeck --- drivers/hwmon/emc1403.c | 2 +- drivers/hwmon/ltc2945.c | 2 +- drivers/hwmon/ltc4222.c | 2 +- drivers/hwmon/ltc4260.c | 2 +- drivers/hwmon/tmp103.c | 2 +- 5 files changed, 5 insertions(+), 5 deletions(-) diff --git a/drivers/hwmon/emc1403.c b/drivers/hwmon/emc1403.c index a37b2204a418..1ea7ca510f84 100644 --- a/drivers/hwmon/emc1403.c +++ b/drivers/hwmon/emc1403.c @@ -416,7 +416,7 @@ static bool emc1403_regmap_is_volatile(struct device *dev, unsigned int reg) } } -static struct regmap_config emc1403_regmap_config = { +static const struct regmap_config emc1403_regmap_config = { .reg_bits = 8, .val_bits = 8, .cache_type = REGCACHE_RBTREE, diff --git a/drivers/hwmon/ltc2945.c b/drivers/hwmon/ltc2945.c index 3701b329b6ae..1b92e4f6e234 100644 --- a/drivers/hwmon/ltc2945.c +++ b/drivers/hwmon/ltc2945.c @@ -469,7 +469,7 @@ static struct attribute *ltc2945_attrs[] = { }; ATTRIBUTE_GROUPS(ltc2945); -static struct regmap_config ltc2945_regmap_config = { +static const struct regmap_config ltc2945_regmap_config = { .reg_bits = 8, .val_bits = 8, .max_register = LTC2945_MIN_ADIN_THRES_L, diff --git a/drivers/hwmon/ltc4222.c b/drivers/hwmon/ltc4222.c index 07c25653659f..88f747292816 100644 --- a/drivers/hwmon/ltc4222.c +++ b/drivers/hwmon/ltc4222.c @@ -186,7 +186,7 @@ static struct attribute *ltc4222_attrs[] = { }; ATTRIBUTE_GROUPS(ltc4222); -static struct regmap_config ltc4222_regmap_config = { +static const struct regmap_config ltc4222_regmap_config = { .reg_bits = 8, .val_bits = 8, .max_register = LTC4222_ADC_CONTROL, diff --git a/drivers/hwmon/ltc4260.c b/drivers/hwmon/ltc4260.c index 453a250d9df5..afb09574b12c 100644 --- a/drivers/hwmon/ltc4260.c +++ b/drivers/hwmon/ltc4260.c @@ -150,7 +150,7 @@ static struct attribute *ltc4260_attrs[] = { }; ATTRIBUTE_GROUPS(ltc4260); -static struct regmap_config ltc4260_regmap_config = { +static const struct regmap_config ltc4260_regmap_config = { .reg_bits = 8, .val_bits = 8, .max_register = LTC4260_ADIN, diff --git a/drivers/hwmon/tmp103.c b/drivers/hwmon/tmp103.c index c9f99e0eb368..c74d2da389d9 100644 --- a/drivers/hwmon/tmp103.c +++ b/drivers/hwmon/tmp103.c @@ -116,7 +116,7 @@ static bool tmp103_regmap_is_volatile(struct device *dev, unsigned int reg) return reg == TMP103_TEMP_REG; } -static struct regmap_config tmp103_regmap_config = { +static const struct regmap_config tmp103_regmap_config = { .reg_bits = 8, .val_bits = 8, .max_register = TMP103_THIGH_REG, -- cgit v1.2.3 From 7560dc0a6d45dbf0d32eb56172dd5062753a8dcc Mon Sep 17 00:00:00 2001 From: Guenter Roeck Date: Wed, 25 Jun 2014 08:08:35 -0700 Subject: hwmon: (lm63) Fix smatch warnings smatch complains as follows when checking lm63.c. drivers/hwmon/lm63.c:594 set_temp11() warn: '65504' 65504 can't fit into 32767 'data->temp11[nr]' drivers/hwmon/lm63.c:596 set_temp11() warn: '32768' 32768 can't fit into 32767 'data->temp11[nr]' Fix by using DIV_ROUND_CLOSEST and clamp_val to convert the values. While we are at it, modify other macros as well for consistency and to make the code easier to understand. Signed-off-by: Guenter Roeck --- drivers/hwmon/lm63.c | 27 ++++++++++----------------- 1 file changed, 10 insertions(+), 17 deletions(-) diff --git a/drivers/hwmon/lm63.c b/drivers/hwmon/lm63.c index 848b9611151f..33bfdb444138 100644 --- a/drivers/hwmon/lm63.c +++ b/drivers/hwmon/lm63.c @@ -126,24 +126,17 @@ static const unsigned short normal_i2c[] = { 0x18, 0x4c, 0x4e, I2C_CLIENT_END }; #define FAN_TO_REG(val) ((val) <= 82 ? 0xFFFC : \ (5400000 / (val)) & 0xFFFC) #define TEMP8_FROM_REG(reg) ((reg) * 1000) -#define TEMP8_TO_REG(val) ((val) <= -128000 ? -128 : \ - (val) >= 127000 ? 127 : \ - (val) < 0 ? ((val) - 500) / 1000 : \ - ((val) + 500) / 1000) -#define TEMP8U_TO_REG(val) ((val) <= 0 ? 0 : \ - (val) >= 255000 ? 255 : \ - ((val) + 500) / 1000) +#define TEMP8_TO_REG(val) DIV_ROUND_CLOSEST(clamp_val((val), -128000, \ + 127000), 1000) +#define TEMP8U_TO_REG(val) DIV_ROUND_CLOSEST(clamp_val((val), 0, \ + 255000), 1000) #define TEMP11_FROM_REG(reg) ((reg) / 32 * 125) -#define TEMP11_TO_REG(val) ((val) <= -128000 ? 0x8000 : \ - (val) >= 127875 ? 0x7FE0 : \ - (val) < 0 ? ((val) - 62) / 125 * 32 : \ - ((val) + 62) / 125 * 32) -#define TEMP11U_TO_REG(val) ((val) <= 0 ? 0 : \ - (val) >= 255875 ? 0xFFE0 : \ - ((val) + 62) / 125 * 32) -#define HYST_TO_REG(val) ((val) <= 0 ? 0 : \ - (val) >= 127000 ? 127 : \ - ((val) + 500) / 1000) +#define TEMP11_TO_REG(val) (DIV_ROUND_CLOSEST(clamp_val((val), -128000, \ + 127875), 125) * 32) +#define TEMP11U_TO_REG(val) (DIV_ROUND_CLOSEST(clamp_val((val), 0, \ + 255875), 125) * 32) +#define HYST_TO_REG(val) DIV_ROUND_CLOSEST(clamp_val((val), 0, 127000), \ + 1000) #define UPDATE_INTERVAL(max, rate) \ ((1000 << (LM63_MAX_CONVRATE - (rate))) / (max)) -- cgit v1.2.3 From 40ebdb9274ba71b6211f500904a3935af81a00ca Mon Sep 17 00:00:00 2001 From: Guenter Roeck Date: Mon, 30 Jun 2014 07:34:30 -0700 Subject: hwmon: (w83791d) Fix smatch warning smatch complains as follows when checking w83791d.c. drivers/hwmon/w83791d.c:996 store_temp23() warn: '32768' 32768 can't fit into 32767 'data->temp_add[nr][index]' Fix by using DIV_ROUND_CLOSEST and clamp_val to convert the values. While we are at it, modify other macros as well for consistency and to make the code easier to understand. Signed-off-by: Guenter Roeck --- drivers/hwmon/w83791d.c | 15 ++++++--------- 1 file changed, 6 insertions(+), 9 deletions(-) diff --git a/drivers/hwmon/w83791d.c b/drivers/hwmon/w83791d.c index bdcf2dce5ec4..cb3765fec98c 100644 --- a/drivers/hwmon/w83791d.c +++ b/drivers/hwmon/w83791d.c @@ -249,19 +249,16 @@ static u8 fan_to_reg(long rpm, int div) * the bottom 7 bits will always be zero */ #define TEMP23_FROM_REG(val) ((val) / 128 * 500) -#define TEMP23_TO_REG(val) ((val) <= -128000 ? 0x8000 : \ - (val) >= 127500 ? 0x7F80 : \ - (val) < 0 ? ((val) - 250) / 500 * 128 : \ - ((val) + 250) / 500 * 128) +#define TEMP23_TO_REG(val) (DIV_ROUND_CLOSEST(clamp_val((val), -128000, \ + 127500), 500) * 128) /* for thermal cruise target temp, 7-bits, LSB = 1 degree Celsius */ -#define TARGET_TEMP_TO_REG(val) ((val) < 0 ? 0 : \ - (val) >= 127000 ? 127 : \ - ((val) + 500) / 1000) +#define TARGET_TEMP_TO_REG(val) DIV_ROUND_CLOSEST(clamp_val((val), 0, 127000), \ + 1000) /* for thermal cruise temp tolerance, 4-bits, LSB = 1 degree Celsius */ -#define TOL_TEMP_TO_REG(val) ((val) >= 15000 ? 15 : \ - ((val) + 500) / 1000) +#define TOL_TEMP_TO_REG(val) DIV_ROUND_CLOSEST(clamp_val((val), 0, 15000), \ + 1000) #define BEEP_MASK_TO_REG(val) ((val) & 0xffffff) #define BEEP_MASK_FROM_REG(val) ((val) & 0xffffff) -- cgit v1.2.3 From 6579d589eaa0f86a902504f76b4f973e2978d951 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Wed, 2 Jul 2014 20:36:50 +0800 Subject: hwmon: (lm93) Convert to devm_hwmon_device_register_with_groups Use ATTRIBUTE_GROUPS macro and devm_hwmon_device_register_with_groups() to simplify the code a bit. Signed-off-by: Axel Lin Signed-off-by: Guenter Roeck --- drivers/hwmon/lm93.c | 154 ++++++++++++++++++++++----------------------------- 1 file changed, 66 insertions(+), 88 deletions(-) diff --git a/drivers/hwmon/lm93.c b/drivers/hwmon/lm93.c index 6c2df576f253..90bb04858117 100644 --- a/drivers/hwmon/lm93.c +++ b/drivers/hwmon/lm93.c @@ -207,7 +207,7 @@ struct block1_t { * Client-specific data */ struct lm93_data { - struct device *hwmon_dev; + struct i2c_client *client; struct mutex update_lock; unsigned long last_updated; /* In jiffies */ @@ -919,8 +919,8 @@ static void lm93_read_block(struct i2c_client *client, u8 fbn, u8 *values) static struct lm93_data *lm93_update_device(struct device *dev) { - struct i2c_client *client = to_i2c_client(dev); - struct lm93_data *data = i2c_get_clientdata(client); + struct lm93_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; const unsigned long interval = HZ + (HZ / 2); mutex_lock(&data->update_lock); @@ -1158,8 +1158,8 @@ static ssize_t store_in_min(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { int nr = (to_sensor_dev_attr(attr))->index; - struct i2c_client *client = to_i2c_client(dev); - struct lm93_data *data = i2c_get_clientdata(client); + struct lm93_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; int vccp = nr - 6; long vid; unsigned long val; @@ -1239,8 +1239,8 @@ static ssize_t store_in_max(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { int nr = (to_sensor_dev_attr(attr))->index; - struct i2c_client *client = to_i2c_client(dev); - struct lm93_data *data = i2c_get_clientdata(client); + struct lm93_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; int vccp = nr - 6; long vid; unsigned long val; @@ -1323,8 +1323,8 @@ static ssize_t store_temp_min(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { int nr = (to_sensor_dev_attr(attr))->index; - struct i2c_client *client = to_i2c_client(dev); - struct lm93_data *data = i2c_get_clientdata(client); + struct lm93_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; long val; int err; @@ -1358,8 +1358,8 @@ static ssize_t store_temp_max(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { int nr = (to_sensor_dev_attr(attr))->index; - struct i2c_client *client = to_i2c_client(dev); - struct lm93_data *data = i2c_get_clientdata(client); + struct lm93_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; long val; int err; @@ -1394,8 +1394,8 @@ static ssize_t store_temp_auto_base(struct device *dev, const char *buf, size_t count) { int nr = (to_sensor_dev_attr(attr))->index; - struct i2c_client *client = to_i2c_client(dev); - struct lm93_data *data = i2c_get_clientdata(client); + struct lm93_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; long val; int err; @@ -1430,8 +1430,8 @@ static ssize_t store_temp_auto_boost(struct device *dev, const char *buf, size_t count) { int nr = (to_sensor_dev_attr(attr))->index; - struct i2c_client *client = to_i2c_client(dev); - struct lm93_data *data = i2c_get_clientdata(client); + struct lm93_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; long val; int err; @@ -1469,8 +1469,8 @@ static ssize_t store_temp_auto_boost_hyst(struct device *dev, const char *buf, size_t count) { int nr = (to_sensor_dev_attr(attr))->index; - struct i2c_client *client = to_i2c_client(dev); - struct lm93_data *data = i2c_get_clientdata(client); + struct lm93_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; unsigned long val; int err; @@ -1520,8 +1520,8 @@ static ssize_t store_temp_auto_offset(struct device *dev, struct sensor_device_attribute_2 *s_attr = to_sensor_dev_attr_2(attr); int nr = s_attr->index; int ofs = s_attr->nr; - struct i2c_client *client = to_i2c_client(dev); - struct lm93_data *data = i2c_get_clientdata(client); + struct lm93_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; unsigned long val; int err; @@ -1632,8 +1632,8 @@ static ssize_t store_temp_auto_pwm_min(struct device *dev, const char *buf, size_t count) { int nr = (to_sensor_dev_attr(attr))->index; - struct i2c_client *client = to_i2c_client(dev); - struct lm93_data *data = i2c_get_clientdata(client); + struct lm93_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; u8 reg, ctl4; unsigned long val; int err; @@ -1680,8 +1680,8 @@ static ssize_t store_temp_auto_offset_hyst(struct device *dev, const char *buf, size_t count) { int nr = (to_sensor_dev_attr(attr))->index; - struct i2c_client *client = to_i2c_client(dev); - struct lm93_data *data = i2c_get_clientdata(client); + struct lm93_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; u8 reg; unsigned long val; int err; @@ -1741,8 +1741,8 @@ static ssize_t store_fan_min(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { int nr = (to_sensor_dev_attr(attr))->index; - struct i2c_client *client = to_i2c_client(dev); - struct lm93_data *data = i2c_get_clientdata(client); + struct lm93_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; unsigned long val; int err; @@ -1824,8 +1824,8 @@ static ssize_t store_fan_smart_tach(struct device *dev, const char *buf, size_t count) { int nr = (to_sensor_dev_attr(attr))->index; - struct i2c_client *client = to_i2c_client(dev); - struct lm93_data *data = i2c_get_clientdata(client); + struct lm93_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; unsigned long val; int err; @@ -1880,8 +1880,8 @@ static ssize_t store_pwm(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { int nr = (to_sensor_dev_attr(attr))->index; - struct i2c_client *client = to_i2c_client(dev); - struct lm93_data *data = i2c_get_clientdata(client); + struct lm93_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; u8 ctl2, ctl4; unsigned long val; int err; @@ -1928,8 +1928,8 @@ static ssize_t store_pwm_enable(struct device *dev, const char *buf, size_t count) { int nr = (to_sensor_dev_attr(attr))->index; - struct i2c_client *client = to_i2c_client(dev); - struct lm93_data *data = i2c_get_clientdata(client); + struct lm93_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; u8 ctl2; unsigned long val; int err; @@ -2006,8 +2006,8 @@ static ssize_t store_pwm_freq(struct device *dev, const char *buf, size_t count) { int nr = (to_sensor_dev_attr(attr))->index; - struct i2c_client *client = to_i2c_client(dev); - struct lm93_data *data = i2c_get_clientdata(client); + struct lm93_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; u8 ctl4; unsigned long val; int err; @@ -2046,8 +2046,8 @@ static ssize_t store_pwm_auto_channels(struct device *dev, const char *buf, size_t count) { int nr = (to_sensor_dev_attr(attr))->index; - struct i2c_client *client = to_i2c_client(dev); - struct lm93_data *data = i2c_get_clientdata(client); + struct lm93_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; unsigned long val; int err; @@ -2087,8 +2087,8 @@ static ssize_t store_pwm_auto_spinup_min(struct device *dev, const char *buf, size_t count) { int nr = (to_sensor_dev_attr(attr))->index; - struct i2c_client *client = to_i2c_client(dev); - struct lm93_data *data = i2c_get_clientdata(client); + struct lm93_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; u8 ctl3, ctl4; unsigned long val; int err; @@ -2130,8 +2130,8 @@ static ssize_t store_pwm_auto_spinup_time(struct device *dev, const char *buf, size_t count) { int nr = (to_sensor_dev_attr(attr))->index; - struct i2c_client *client = to_i2c_client(dev); - struct lm93_data *data = i2c_get_clientdata(client); + struct lm93_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; u8 ctl3; unsigned long val; int err; @@ -2168,8 +2168,8 @@ static ssize_t store_pwm_auto_prochot_ramp(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { - struct i2c_client *client = to_i2c_client(dev); - struct lm93_data *data = i2c_get_clientdata(client); + struct lm93_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; u8 ramp; unsigned long val; int err; @@ -2202,8 +2202,8 @@ static ssize_t store_pwm_auto_vrdhot_ramp(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { - struct i2c_client *client = to_i2c_client(dev); - struct lm93_data *data = i2c_get_clientdata(client); + struct lm93_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; u8 ramp; unsigned long val; int err; @@ -2270,8 +2270,8 @@ static ssize_t store_prochot_max(struct device *dev, const char *buf, size_t count) { int nr = (to_sensor_dev_attr(attr))->index; - struct i2c_client *client = to_i2c_client(dev); - struct lm93_data *data = i2c_get_clientdata(client); + struct lm93_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; unsigned long val; int err; @@ -2308,8 +2308,8 @@ static ssize_t store_prochot_override(struct device *dev, const char *buf, size_t count) { int nr = (to_sensor_dev_attr(attr))->index; - struct i2c_client *client = to_i2c_client(dev); - struct lm93_data *data = i2c_get_clientdata(client); + struct lm93_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; unsigned long val; int err; @@ -2351,8 +2351,8 @@ static ssize_t store_prochot_interval(struct device *dev, const char *buf, size_t count) { int nr = (to_sensor_dev_attr(attr))->index; - struct i2c_client *client = to_i2c_client(dev); - struct lm93_data *data = i2c_get_clientdata(client); + struct lm93_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; u8 tmp; unsigned long val; int err; @@ -2390,8 +2390,8 @@ static ssize_t store_prochot_override_duty_cycle(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { - struct i2c_client *client = to_i2c_client(dev); - struct lm93_data *data = i2c_get_clientdata(client); + struct lm93_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; unsigned long val; int err; @@ -2423,8 +2423,8 @@ static ssize_t store_prochot_short(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { - struct i2c_client *client = to_i2c_client(dev); - struct lm93_data *data = i2c_get_clientdata(client); + struct lm93_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; unsigned long val; int err; @@ -2631,9 +2631,7 @@ static struct attribute *lm93_attrs[] = { NULL }; -static struct attribute_group lm93_attr_grp = { - .attrs = lm93_attrs, -}; +ATTRIBUTE_GROUPS(lm93); static void lm93_init_client(struct i2c_client *client) { @@ -2726,61 +2724,42 @@ static int lm93_detect(struct i2c_client *client, struct i2c_board_info *info) static int lm93_probe(struct i2c_client *client, const struct i2c_device_id *id) { + struct device *dev = &client->dev; struct lm93_data *data; - int err, func; + struct device *hwmon_dev; + int func; void (*update)(struct lm93_data *, struct i2c_client *); /* choose update routine based on bus capabilities */ func = i2c_get_functionality(client->adapter); if (((LM93_SMBUS_FUNC_FULL & func) == LM93_SMBUS_FUNC_FULL) && (!disable_block)) { - dev_dbg(&client->dev, "using SMBus block data transactions\n"); + dev_dbg(dev, "using SMBus block data transactions\n"); update = lm93_update_client_full; } else if ((LM93_SMBUS_FUNC_MIN & func) == LM93_SMBUS_FUNC_MIN) { - dev_dbg(&client->dev, - "disabled SMBus block data transactions\n"); + dev_dbg(dev, "disabled SMBus block data transactions\n"); update = lm93_update_client_min; } else { - dev_dbg(&client->dev, - "detect failed, smbus byte and/or word data not supported!\n"); + dev_dbg(dev, "detect failed, smbus byte and/or word data not supported!\n"); return -ENODEV; } - data = devm_kzalloc(&client->dev, sizeof(struct lm93_data), GFP_KERNEL); + data = devm_kzalloc(dev, sizeof(struct lm93_data), GFP_KERNEL); if (!data) return -ENOMEM; - i2c_set_clientdata(client, data); /* housekeeping */ + data->client = client; data->update = update; mutex_init(&data->update_lock); /* initialize the chip */ lm93_init_client(client); - err = sysfs_create_group(&client->dev.kobj, &lm93_attr_grp); - if (err) - return err; - - /* Register hwmon driver class */ - data->hwmon_dev = hwmon_device_register(&client->dev); - if (!IS_ERR(data->hwmon_dev)) - return 0; - - err = PTR_ERR(data->hwmon_dev); - dev_err(&client->dev, "error registering hwmon device.\n"); - sysfs_remove_group(&client->dev.kobj, &lm93_attr_grp); - return err; -} - -static int lm93_remove(struct i2c_client *client) -{ - struct lm93_data *data = i2c_get_clientdata(client); - - hwmon_device_unregister(data->hwmon_dev); - sysfs_remove_group(&client->dev.kobj, &lm93_attr_grp); - - return 0; + hwmon_dev = devm_hwmon_device_register_with_groups(dev, client->name, + data, + lm93_groups); + return PTR_ERR_OR_ZERO(hwmon_dev); } static const struct i2c_device_id lm93_id[] = { @@ -2796,7 +2775,6 @@ static struct i2c_driver lm93_driver = { .name = "lm93", }, .probe = lm93_probe, - .remove = lm93_remove, .id_table = lm93_id, .detect = lm93_detect, .address_list = normal_i2c, -- cgit v1.2.3 From d4a972a33932f039fe9dce0cfb2337fee1150f5a Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Thu, 3 Jul 2014 09:46:51 +0800 Subject: hwmon: (gl518sm) Avoid forward declaration Reorder functions to avoid forward declaration. Signed-off-by: Axel Lin Signed-off-by: Guenter Roeck --- drivers/hwmon/gl518sm.c | 263 +++++++++++++++++++++++------------------------- 1 file changed, 126 insertions(+), 137 deletions(-) diff --git a/drivers/hwmon/gl518sm.c b/drivers/hwmon/gl518sm.c index 1e9830513045..0307d8218f87 100644 --- a/drivers/hwmon/gl518sm.c +++ b/drivers/hwmon/gl518sm.c @@ -137,33 +137,98 @@ struct gl518_data { u8 beep_enable; /* Boolean */ }; -static int gl518_probe(struct i2c_client *client, - const struct i2c_device_id *id); -static int gl518_detect(struct i2c_client *client, struct i2c_board_info *info); -static void gl518_init_client(struct i2c_client *client); -static int gl518_remove(struct i2c_client *client); -static int gl518_read_value(struct i2c_client *client, u8 reg); -static int gl518_write_value(struct i2c_client *client, u8 reg, u16 value); -static struct gl518_data *gl518_update_device(struct device *dev); +/* + * Registers 0x07 to 0x0c are word-sized, others are byte-sized + * GL518 uses a high-byte first convention, which is exactly opposite to + * the SMBus standard. + */ +static int gl518_read_value(struct i2c_client *client, u8 reg) +{ + if ((reg >= 0x07) && (reg <= 0x0c)) + return i2c_smbus_read_word_swapped(client, reg); + else + return i2c_smbus_read_byte_data(client, reg); +} -static const struct i2c_device_id gl518_id[] = { - { "gl518sm", 0 }, - { } -}; -MODULE_DEVICE_TABLE(i2c, gl518_id); +static int gl518_write_value(struct i2c_client *client, u8 reg, u16 value) +{ + if ((reg >= 0x07) && (reg <= 0x0c)) + return i2c_smbus_write_word_swapped(client, reg, value); + else + return i2c_smbus_write_byte_data(client, reg, value); +} -/* This is the driver that will be inserted */ -static struct i2c_driver gl518_driver = { - .class = I2C_CLASS_HWMON, - .driver = { - .name = "gl518sm", - }, - .probe = gl518_probe, - .remove = gl518_remove, - .id_table = gl518_id, - .detect = gl518_detect, - .address_list = normal_i2c, -}; +static struct gl518_data *gl518_update_device(struct device *dev) +{ + struct i2c_client *client = to_i2c_client(dev); + struct gl518_data *data = i2c_get_clientdata(client); + int val; + + mutex_lock(&data->update_lock); + + if (time_after(jiffies, data->last_updated + HZ + HZ / 2) + || !data->valid) { + dev_dbg(&client->dev, "Starting gl518 update\n"); + + data->alarms = gl518_read_value(client, GL518_REG_INT); + data->beep_mask = gl518_read_value(client, GL518_REG_ALARM); + + val = gl518_read_value(client, GL518_REG_VDD_LIMIT); + data->voltage_min[0] = val & 0xff; + data->voltage_max[0] = (val >> 8) & 0xff; + val = gl518_read_value(client, GL518_REG_VIN1_LIMIT); + data->voltage_min[1] = val & 0xff; + data->voltage_max[1] = (val >> 8) & 0xff; + val = gl518_read_value(client, GL518_REG_VIN2_LIMIT); + data->voltage_min[2] = val & 0xff; + data->voltage_max[2] = (val >> 8) & 0xff; + val = gl518_read_value(client, GL518_REG_VIN3_LIMIT); + data->voltage_min[3] = val & 0xff; + data->voltage_max[3] = (val >> 8) & 0xff; + + val = gl518_read_value(client, GL518_REG_FAN_COUNT); + data->fan_in[0] = (val >> 8) & 0xff; + data->fan_in[1] = val & 0xff; + + val = gl518_read_value(client, GL518_REG_FAN_LIMIT); + data->fan_min[0] = (val >> 8) & 0xff; + data->fan_min[1] = val & 0xff; + + data->temp_in = gl518_read_value(client, GL518_REG_TEMP_IN); + data->temp_max = + gl518_read_value(client, GL518_REG_TEMP_MAX); + data->temp_hyst = + gl518_read_value(client, GL518_REG_TEMP_HYST); + + val = gl518_read_value(client, GL518_REG_MISC); + data->fan_div[0] = (val >> 6) & 0x03; + data->fan_div[1] = (val >> 4) & 0x03; + data->fan_auto1 = (val >> 3) & 0x01; + + data->alarms &= data->alarm_mask; + + val = gl518_read_value(client, GL518_REG_CONF); + data->beep_enable = (val >> 2) & 1; + + if (data->type != gl518sm_r00) { + data->voltage_in[0] = + gl518_read_value(client, GL518_REG_VDD); + data->voltage_in[1] = + gl518_read_value(client, GL518_REG_VIN1); + data->voltage_in[2] = + gl518_read_value(client, GL518_REG_VIN2); + } + data->voltage_in[3] = + gl518_read_value(client, GL518_REG_VIN3); + + data->last_updated = jiffies; + data->valid = 1; + } + + mutex_unlock(&data->update_lock); + + return data; +} /* * Sysfs stuff @@ -539,6 +604,26 @@ static int gl518_detect(struct i2c_client *client, struct i2c_board_info *info) return 0; } +/* + * Called when we have found a new GL518SM. + * Note that we preserve D4:NoFan2 and D2:beep_enable. + */ +static void gl518_init_client(struct i2c_client *client) +{ + /* Make sure we leave D7:Reset untouched */ + u8 regvalue = gl518_read_value(client, GL518_REG_CONF) & 0x7f; + + /* Comparator mode (D3=0), standby mode (D6=0) */ + gl518_write_value(client, GL518_REG_CONF, (regvalue &= 0x37)); + + /* Never interrupts */ + gl518_write_value(client, GL518_REG_MASK, 0x00); + + /* Clear status register (D5=1), start (D6=1) */ + gl518_write_value(client, GL518_REG_CONF, 0x20 | regvalue); + gl518_write_value(client, GL518_REG_CONF, 0x40 | regvalue); +} + static int gl518_probe(struct i2c_client *client, const struct i2c_device_id *id) { @@ -584,27 +669,6 @@ exit_remove_files: return err; } - -/* - * Called when we have found a new GL518SM. - * Note that we preserve D4:NoFan2 and D2:beep_enable. - */ -static void gl518_init_client(struct i2c_client *client) -{ - /* Make sure we leave D7:Reset untouched */ - u8 regvalue = gl518_read_value(client, GL518_REG_CONF) & 0x7f; - - /* Comparator mode (D3=0), standby mode (D6=0) */ - gl518_write_value(client, GL518_REG_CONF, (regvalue &= 0x37)); - - /* Never interrupts */ - gl518_write_value(client, GL518_REG_MASK, 0x00); - - /* Clear status register (D5=1), start (D6=1) */ - gl518_write_value(client, GL518_REG_CONF, 0x20 | regvalue); - gl518_write_value(client, GL518_REG_CONF, 0x40 | regvalue); -} - static int gl518_remove(struct i2c_client *client) { struct gl518_data *data = i2c_get_clientdata(client); @@ -617,98 +681,23 @@ static int gl518_remove(struct i2c_client *client) return 0; } -/* - * Registers 0x07 to 0x0c are word-sized, others are byte-sized - * GL518 uses a high-byte first convention, which is exactly opposite to - * the SMBus standard. - */ -static int gl518_read_value(struct i2c_client *client, u8 reg) -{ - if ((reg >= 0x07) && (reg <= 0x0c)) - return i2c_smbus_read_word_swapped(client, reg); - else - return i2c_smbus_read_byte_data(client, reg); -} - -static int gl518_write_value(struct i2c_client *client, u8 reg, u16 value) -{ - if ((reg >= 0x07) && (reg <= 0x0c)) - return i2c_smbus_write_word_swapped(client, reg, value); - else - return i2c_smbus_write_byte_data(client, reg, value); -} - -static struct gl518_data *gl518_update_device(struct device *dev) -{ - struct i2c_client *client = to_i2c_client(dev); - struct gl518_data *data = i2c_get_clientdata(client); - int val; - - mutex_lock(&data->update_lock); - - if (time_after(jiffies, data->last_updated + HZ + HZ / 2) - || !data->valid) { - dev_dbg(&client->dev, "Starting gl518 update\n"); - - data->alarms = gl518_read_value(client, GL518_REG_INT); - data->beep_mask = gl518_read_value(client, GL518_REG_ALARM); - - val = gl518_read_value(client, GL518_REG_VDD_LIMIT); - data->voltage_min[0] = val & 0xff; - data->voltage_max[0] = (val >> 8) & 0xff; - val = gl518_read_value(client, GL518_REG_VIN1_LIMIT); - data->voltage_min[1] = val & 0xff; - data->voltage_max[1] = (val >> 8) & 0xff; - val = gl518_read_value(client, GL518_REG_VIN2_LIMIT); - data->voltage_min[2] = val & 0xff; - data->voltage_max[2] = (val >> 8) & 0xff; - val = gl518_read_value(client, GL518_REG_VIN3_LIMIT); - data->voltage_min[3] = val & 0xff; - data->voltage_max[3] = (val >> 8) & 0xff; - - val = gl518_read_value(client, GL518_REG_FAN_COUNT); - data->fan_in[0] = (val >> 8) & 0xff; - data->fan_in[1] = val & 0xff; - - val = gl518_read_value(client, GL518_REG_FAN_LIMIT); - data->fan_min[0] = (val >> 8) & 0xff; - data->fan_min[1] = val & 0xff; - - data->temp_in = gl518_read_value(client, GL518_REG_TEMP_IN); - data->temp_max = - gl518_read_value(client, GL518_REG_TEMP_MAX); - data->temp_hyst = - gl518_read_value(client, GL518_REG_TEMP_HYST); - - val = gl518_read_value(client, GL518_REG_MISC); - data->fan_div[0] = (val >> 6) & 0x03; - data->fan_div[1] = (val >> 4) & 0x03; - data->fan_auto1 = (val >> 3) & 0x01; - - data->alarms &= data->alarm_mask; - - val = gl518_read_value(client, GL518_REG_CONF); - data->beep_enable = (val >> 2) & 1; - - if (data->type != gl518sm_r00) { - data->voltage_in[0] = - gl518_read_value(client, GL518_REG_VDD); - data->voltage_in[1] = - gl518_read_value(client, GL518_REG_VIN1); - data->voltage_in[2] = - gl518_read_value(client, GL518_REG_VIN2); - } - data->voltage_in[3] = - gl518_read_value(client, GL518_REG_VIN3); - - data->last_updated = jiffies; - data->valid = 1; - } - - mutex_unlock(&data->update_lock); +static const struct i2c_device_id gl518_id[] = { + { "gl518sm", 0 }, + { } +}; +MODULE_DEVICE_TABLE(i2c, gl518_id); - return data; -} +static struct i2c_driver gl518_driver = { + .class = I2C_CLASS_HWMON, + .driver = { + .name = "gl518sm", + }, + .probe = gl518_probe, + .remove = gl518_remove, + .id_table = gl518_id, + .detect = gl518_detect, + .address_list = normal_i2c, +}; module_i2c_driver(gl518_driver); -- cgit v1.2.3 From 18faf5b9befa0009ab796990eaa25af81f0f3b6f Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Thu, 3 Jul 2014 09:48:04 +0800 Subject: hwmon: (gl518sm) Convert to devm_hwmon_device_register_with_groups Use ATTRIBUTE_GROUPS macro and devm_hwmon_device_register_with_groups() to simplify the code a bit. Signed-off-by: Axel Lin Signed-off-by: Guenter Roeck --- drivers/hwmon/gl518sm.c | 76 ++++++++++++++++--------------------------------- 1 file changed, 25 insertions(+), 51 deletions(-) diff --git a/drivers/hwmon/gl518sm.c b/drivers/hwmon/gl518sm.c index 0307d8218f87..0212c8317bca 100644 --- a/drivers/hwmon/gl518sm.c +++ b/drivers/hwmon/gl518sm.c @@ -114,7 +114,8 @@ static inline u8 FAN_TO_REG(long rpm, int div) /* Each client has this additional data */ struct gl518_data { - struct device *hwmon_dev; + struct i2c_client *client; + const struct attribute_group *groups[3]; enum chips type; struct mutex update_lock; @@ -160,8 +161,8 @@ static int gl518_write_value(struct i2c_client *client, u8 reg, u16 value) static struct gl518_data *gl518_update_device(struct device *dev) { - struct i2c_client *client = to_i2c_client(dev); - struct gl518_data *data = i2c_get_clientdata(client); + struct gl518_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; int val; mutex_lock(&data->update_lock); @@ -293,8 +294,8 @@ static ssize_t set_##suffix(struct device *dev, \ struct device_attribute *attr, \ const char *buf, size_t count) \ { \ - struct i2c_client *client = to_i2c_client(dev); \ - struct gl518_data *data = i2c_get_clientdata(client); \ + struct gl518_data *data = dev_get_drvdata(dev); \ + struct i2c_client *client = data->client; \ long val; \ int err = kstrtol(buf, 10, &val); \ if (err) \ @@ -312,8 +313,8 @@ static ssize_t set_##suffix(struct device *dev, \ struct device_attribute *attr, \ const char *buf, size_t count) \ { \ - struct i2c_client *client = to_i2c_client(dev); \ - struct gl518_data *data = i2c_get_clientdata(client); \ + struct gl518_data *data = dev_get_drvdata(dev); \ + struct i2c_client *client = data->client; \ int regvalue; \ unsigned long val; \ int err = kstrtoul(buf, 10, &val); \ @@ -351,8 +352,8 @@ set(BEEP_MASK, beep_mask, beep_mask, GL518_REG_ALARM); static ssize_t set_fan_min(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { - struct i2c_client *client = to_i2c_client(dev); - struct gl518_data *data = i2c_get_clientdata(client); + struct gl518_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; int nr = to_sensor_dev_attr(attr)->index; int regvalue; unsigned long val; @@ -384,8 +385,8 @@ static ssize_t set_fan_min(struct device *dev, struct device_attribute *attr, static ssize_t set_fan_div(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { - struct i2c_client *client = to_i2c_client(dev); - struct gl518_data *data = i2c_get_clientdata(client); + struct gl518_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; int nr = to_sensor_dev_attr(attr)->index; int regvalue; unsigned long val; @@ -485,8 +486,8 @@ static ssize_t show_beep(struct device *dev, struct device_attribute *attr, static ssize_t set_beep(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { - struct i2c_client *client = to_i2c_client(dev); - struct gl518_data *data = i2c_get_clientdata(client); + struct gl518_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; int bitnr = to_sensor_dev_attr(attr)->index; unsigned long bit; int err; @@ -627,15 +628,16 @@ static void gl518_init_client(struct i2c_client *client) static int gl518_probe(struct i2c_client *client, const struct i2c_device_id *id) { + struct device *dev = &client->dev; + struct device *hwmon_dev; struct gl518_data *data; - int err, revision; + int revision; - data = devm_kzalloc(&client->dev, sizeof(struct gl518_data), - GFP_KERNEL); + data = devm_kzalloc(dev, sizeof(struct gl518_data), GFP_KERNEL); if (!data) return -ENOMEM; - i2c_set_clientdata(client, data); + data->client = client; revision = gl518_read_value(client, GL518_REG_REVISION); data->type = revision == 0x80 ? gl518sm_r80 : gl518sm_r00; mutex_init(&data->update_lock); @@ -644,41 +646,14 @@ static int gl518_probe(struct i2c_client *client, data->alarm_mask = 0xff; gl518_init_client(client); - /* Register sysfs hooks */ - err = sysfs_create_group(&client->dev.kobj, &gl518_group); - if (err) - return err; - if (data->type == gl518sm_r80) { - err = sysfs_create_group(&client->dev.kobj, &gl518_group_r80); - if (err) - goto exit_remove_files; - } - - data->hwmon_dev = hwmon_device_register(&client->dev); - if (IS_ERR(data->hwmon_dev)) { - err = PTR_ERR(data->hwmon_dev); - goto exit_remove_files; - } - - return 0; - -exit_remove_files: - sysfs_remove_group(&client->dev.kobj, &gl518_group); - if (data->type == gl518sm_r80) - sysfs_remove_group(&client->dev.kobj, &gl518_group_r80); - return err; -} - -static int gl518_remove(struct i2c_client *client) -{ - struct gl518_data *data = i2c_get_clientdata(client); - - hwmon_device_unregister(data->hwmon_dev); - sysfs_remove_group(&client->dev.kobj, &gl518_group); + /* sysfs hooks */ + data->groups[0] = &gl518_group; if (data->type == gl518sm_r80) - sysfs_remove_group(&client->dev.kobj, &gl518_group_r80); + data->groups[1] = &gl518_group_r80; - return 0; + hwmon_dev = devm_hwmon_device_register_with_groups(dev, client->name, + data, data->groups); + return PTR_ERR_OR_ZERO(hwmon_dev); } static const struct i2c_device_id gl518_id[] = { @@ -693,7 +668,6 @@ static struct i2c_driver gl518_driver = { .name = "gl518sm", }, .probe = gl518_probe, - .remove = gl518_remove, .id_table = gl518_id, .detect = gl518_detect, .address_list = normal_i2c, -- cgit v1.2.3 From df51f2d7bc8bf99a7f9c29b2f334e412613c2efc Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Thu, 3 Jul 2014 09:49:21 +0800 Subject: hwmon: (gl520sm) Avoid forward declaration Reorder functions to avoid forward declaration. Signed-off-by: Axel Lin Signed-off-by: Guenter Roeck --- drivers/hwmon/gl520sm.c | 317 +++++++++++++++++++++++------------------------- 1 file changed, 150 insertions(+), 167 deletions(-) diff --git a/drivers/hwmon/gl520sm.c b/drivers/hwmon/gl520sm.c index ed56e09c3dd7..86c08a17210d 100644 --- a/drivers/hwmon/gl520sm.c +++ b/drivers/hwmon/gl520sm.c @@ -73,38 +73,6 @@ static const u8 GL520_REG_TEMP_MAX_HYST[] = { 0x06, 0x18 }; #define GL520_REG_BEEP_MASK 0x10 #define GL520_REG_BEEP_ENABLE GL520_REG_CONF -/* - * Function declarations - */ - -static int gl520_probe(struct i2c_client *client, - const struct i2c_device_id *id); -static int gl520_detect(struct i2c_client *client, struct i2c_board_info *info); -static void gl520_init_client(struct i2c_client *client); -static int gl520_remove(struct i2c_client *client); -static int gl520_read_value(struct i2c_client *client, u8 reg); -static int gl520_write_value(struct i2c_client *client, u8 reg, u16 value); -static struct gl520_data *gl520_update_device(struct device *dev); - -/* Driver data */ -static const struct i2c_device_id gl520_id[] = { - { "gl520sm", 0 }, - { } -}; -MODULE_DEVICE_TABLE(i2c, gl520_id); - -static struct i2c_driver gl520_driver = { - .class = I2C_CLASS_HWMON, - .driver = { - .name = "gl520sm", - }, - .probe = gl520_probe, - .remove = gl520_remove, - .id_table = gl520_id, - .detect = gl520_detect, - .address_list = normal_i2c, -}; - /* Client data */ struct gl520_data { struct device *hwmon_dev; @@ -131,6 +99,102 @@ struct gl520_data { u8 two_temps; }; +/* + * Registers 0x07 to 0x0c are word-sized, others are byte-sized + * GL520 uses a high-byte first convention + */ +static int gl520_read_value(struct i2c_client *client, u8 reg) +{ + if ((reg >= 0x07) && (reg <= 0x0c)) + return i2c_smbus_read_word_swapped(client, reg); + else + return i2c_smbus_read_byte_data(client, reg); +} + +static int gl520_write_value(struct i2c_client *client, u8 reg, u16 value) +{ + if ((reg >= 0x07) && (reg <= 0x0c)) + return i2c_smbus_write_word_swapped(client, reg, value); + else + return i2c_smbus_write_byte_data(client, reg, value); +} + +static struct gl520_data *gl520_update_device(struct device *dev) +{ + struct i2c_client *client = to_i2c_client(dev); + struct gl520_data *data = i2c_get_clientdata(client); + int val, i; + + mutex_lock(&data->update_lock); + + if (time_after(jiffies, data->last_updated + 2 * HZ) || !data->valid) { + + dev_dbg(&client->dev, "Starting gl520sm update\n"); + + data->alarms = gl520_read_value(client, GL520_REG_ALARMS); + data->beep_mask = gl520_read_value(client, GL520_REG_BEEP_MASK); + data->vid = gl520_read_value(client, + GL520_REG_VID_INPUT) & 0x1f; + + for (i = 0; i < 4; i++) { + data->in_input[i] = gl520_read_value(client, + GL520_REG_IN_INPUT[i]); + val = gl520_read_value(client, GL520_REG_IN_LIMIT[i]); + data->in_min[i] = val & 0xff; + data->in_max[i] = (val >> 8) & 0xff; + } + + val = gl520_read_value(client, GL520_REG_FAN_INPUT); + data->fan_input[0] = (val >> 8) & 0xff; + data->fan_input[1] = val & 0xff; + + val = gl520_read_value(client, GL520_REG_FAN_MIN); + data->fan_min[0] = (val >> 8) & 0xff; + data->fan_min[1] = val & 0xff; + + data->temp_input[0] = gl520_read_value(client, + GL520_REG_TEMP_INPUT[0]); + data->temp_max[0] = gl520_read_value(client, + GL520_REG_TEMP_MAX[0]); + data->temp_max_hyst[0] = gl520_read_value(client, + GL520_REG_TEMP_MAX_HYST[0]); + + val = gl520_read_value(client, GL520_REG_FAN_DIV); + data->fan_div[0] = (val >> 6) & 0x03; + data->fan_div[1] = (val >> 4) & 0x03; + data->fan_off = (val >> 2) & 0x01; + + data->alarms &= data->alarm_mask; + + val = gl520_read_value(client, GL520_REG_CONF); + data->beep_enable = !((val >> 2) & 1); + + /* Temp1 and Vin4 are the same input */ + if (data->two_temps) { + data->temp_input[1] = gl520_read_value(client, + GL520_REG_TEMP_INPUT[1]); + data->temp_max[1] = gl520_read_value(client, + GL520_REG_TEMP_MAX[1]); + data->temp_max_hyst[1] = gl520_read_value(client, + GL520_REG_TEMP_MAX_HYST[1]); + } else { + data->in_input[4] = gl520_read_value(client, + GL520_REG_IN_INPUT[4]); + data->in_min[4] = gl520_read_value(client, + GL520_REG_IN_MIN[4]); + data->in_max[4] = gl520_read_value(client, + GL520_REG_IN_MAX[4]); + } + + data->last_updated = jiffies; + data->valid = 1; + } + + mutex_unlock(&data->update_lock); + + return data; +} + /* * Sysfs stuff */ @@ -772,6 +836,44 @@ static int gl520_detect(struct i2c_client *client, struct i2c_board_info *info) return 0; } +/* Called when we have found a new GL520SM. */ +static void gl520_init_client(struct i2c_client *client) +{ + struct gl520_data *data = i2c_get_clientdata(client); + u8 oldconf, conf; + + conf = oldconf = gl520_read_value(client, GL520_REG_CONF); + + data->alarm_mask = 0xff; + data->vrm = vid_which_vrm(); + + if (extra_sensor_type == 1) + conf &= ~0x10; + else if (extra_sensor_type == 2) + conf |= 0x10; + data->two_temps = !(conf & 0x10); + + /* If IRQ# is disabled, we can safely force comparator mode */ + if (!(conf & 0x20)) + conf &= 0xf7; + + /* Enable monitoring if needed */ + conf |= 0x40; + + if (conf != oldconf) + gl520_write_value(client, GL520_REG_CONF, conf); + + gl520_update_device(&(client->dev)); + + if (data->fan_min[0] == 0) + data->alarm_mask &= ~0x20; + if (data->fan_min[1] == 0) + data->alarm_mask &= ~0x40; + + data->beep_mask &= data->alarm_mask; + gl520_write_value(client, GL520_REG_BEEP_MASK, data->beep_mask); +} + static int gl520_probe(struct i2c_client *client, const struct i2c_device_id *id) { @@ -817,45 +919,6 @@ exit_remove_files: return err; } - -/* Called when we have found a new GL520SM. */ -static void gl520_init_client(struct i2c_client *client) -{ - struct gl520_data *data = i2c_get_clientdata(client); - u8 oldconf, conf; - - conf = oldconf = gl520_read_value(client, GL520_REG_CONF); - - data->alarm_mask = 0xff; - data->vrm = vid_which_vrm(); - - if (extra_sensor_type == 1) - conf &= ~0x10; - else if (extra_sensor_type == 2) - conf |= 0x10; - data->two_temps = !(conf & 0x10); - - /* If IRQ# is disabled, we can safely force comparator mode */ - if (!(conf & 0x20)) - conf &= 0xf7; - - /* Enable monitoring if needed */ - conf |= 0x40; - - if (conf != oldconf) - gl520_write_value(client, GL520_REG_CONF, conf); - - gl520_update_device(&(client->dev)); - - if (data->fan_min[0] == 0) - data->alarm_mask &= ~0x20; - if (data->fan_min[1] == 0) - data->alarm_mask &= ~0x40; - - data->beep_mask &= data->alarm_mask; - gl520_write_value(client, GL520_REG_BEEP_MASK, data->beep_mask); -} - static int gl520_remove(struct i2c_client *client) { struct gl520_data *data = i2c_get_clientdata(client); @@ -868,103 +931,23 @@ static int gl520_remove(struct i2c_client *client) return 0; } +static const struct i2c_device_id gl520_id[] = { + { "gl520sm", 0 }, + { } +}; +MODULE_DEVICE_TABLE(i2c, gl520_id); -/* - * Registers 0x07 to 0x0c are word-sized, others are byte-sized - * GL520 uses a high-byte first convention - */ -static int gl520_read_value(struct i2c_client *client, u8 reg) -{ - if ((reg >= 0x07) && (reg <= 0x0c)) - return i2c_smbus_read_word_swapped(client, reg); - else - return i2c_smbus_read_byte_data(client, reg); -} - -static int gl520_write_value(struct i2c_client *client, u8 reg, u16 value) -{ - if ((reg >= 0x07) && (reg <= 0x0c)) - return i2c_smbus_write_word_swapped(client, reg, value); - else - return i2c_smbus_write_byte_data(client, reg, value); -} - - -static struct gl520_data *gl520_update_device(struct device *dev) -{ - struct i2c_client *client = to_i2c_client(dev); - struct gl520_data *data = i2c_get_clientdata(client); - int val, i; - - mutex_lock(&data->update_lock); - - if (time_after(jiffies, data->last_updated + 2 * HZ) || !data->valid) { - - dev_dbg(&client->dev, "Starting gl520sm update\n"); - - data->alarms = gl520_read_value(client, GL520_REG_ALARMS); - data->beep_mask = gl520_read_value(client, GL520_REG_BEEP_MASK); - data->vid = gl520_read_value(client, - GL520_REG_VID_INPUT) & 0x1f; - - for (i = 0; i < 4; i++) { - data->in_input[i] = gl520_read_value(client, - GL520_REG_IN_INPUT[i]); - val = gl520_read_value(client, GL520_REG_IN_LIMIT[i]); - data->in_min[i] = val & 0xff; - data->in_max[i] = (val >> 8) & 0xff; - } - - val = gl520_read_value(client, GL520_REG_FAN_INPUT); - data->fan_input[0] = (val >> 8) & 0xff; - data->fan_input[1] = val & 0xff; - - val = gl520_read_value(client, GL520_REG_FAN_MIN); - data->fan_min[0] = (val >> 8) & 0xff; - data->fan_min[1] = val & 0xff; - - data->temp_input[0] = gl520_read_value(client, - GL520_REG_TEMP_INPUT[0]); - data->temp_max[0] = gl520_read_value(client, - GL520_REG_TEMP_MAX[0]); - data->temp_max_hyst[0] = gl520_read_value(client, - GL520_REG_TEMP_MAX_HYST[0]); - - val = gl520_read_value(client, GL520_REG_FAN_DIV); - data->fan_div[0] = (val >> 6) & 0x03; - data->fan_div[1] = (val >> 4) & 0x03; - data->fan_off = (val >> 2) & 0x01; - - data->alarms &= data->alarm_mask; - - val = gl520_read_value(client, GL520_REG_CONF); - data->beep_enable = !((val >> 2) & 1); - - /* Temp1 and Vin4 are the same input */ - if (data->two_temps) { - data->temp_input[1] = gl520_read_value(client, - GL520_REG_TEMP_INPUT[1]); - data->temp_max[1] = gl520_read_value(client, - GL520_REG_TEMP_MAX[1]); - data->temp_max_hyst[1] = gl520_read_value(client, - GL520_REG_TEMP_MAX_HYST[1]); - } else { - data->in_input[4] = gl520_read_value(client, - GL520_REG_IN_INPUT[4]); - data->in_min[4] = gl520_read_value(client, - GL520_REG_IN_MIN[4]); - data->in_max[4] = gl520_read_value(client, - GL520_REG_IN_MAX[4]); - } - - data->last_updated = jiffies; - data->valid = 1; - } - - mutex_unlock(&data->update_lock); - - return data; -} +static struct i2c_driver gl520_driver = { + .class = I2C_CLASS_HWMON, + .driver = { + .name = "gl520sm", + }, + .probe = gl520_probe, + .remove = gl520_remove, + .id_table = gl520_id, + .detect = gl520_detect, + .address_list = normal_i2c, +}; module_i2c_driver(gl520_driver); -- cgit v1.2.3 From d1b9c3f50304376f365e305ff61c3ae9a358e2f9 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Thu, 3 Jul 2014 09:50:13 +0800 Subject: hwmon: (gl520sm) Convert to devm_hwmon_device_register_with_groups Use ATTRIBUTE_GROUPS macro and devm_hwmon_device_register_with_groups() to simplify the code a bit. Signed-off-by: Axel Lin Signed-off-by: Guenter Roeck --- drivers/hwmon/gl520sm.c | 96 ++++++++++++++++++------------------------------- 1 file changed, 35 insertions(+), 61 deletions(-) diff --git a/drivers/hwmon/gl520sm.c b/drivers/hwmon/gl520sm.c index 86c08a17210d..dee93ec87d02 100644 --- a/drivers/hwmon/gl520sm.c +++ b/drivers/hwmon/gl520sm.c @@ -75,7 +75,8 @@ static const u8 GL520_REG_TEMP_MAX_HYST[] = { 0x06, 0x18 }; /* Client data */ struct gl520_data { - struct device *hwmon_dev; + struct i2c_client *client; + const struct attribute_group *groups[3]; struct mutex update_lock; char valid; /* zero until the following fields are valid */ unsigned long last_updated; /* in jiffies */ @@ -121,8 +122,8 @@ static int gl520_write_value(struct i2c_client *client, u8 reg, u16 value) static struct gl520_data *gl520_update_device(struct device *dev) { - struct i2c_client *client = to_i2c_client(dev); - struct gl520_data *data = i2c_get_clientdata(client); + struct gl520_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; int val, i; mutex_lock(&data->update_lock); @@ -255,8 +256,8 @@ static ssize_t get_in_max(struct device *dev, struct device_attribute *attr, static ssize_t set_in_min(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { - struct i2c_client *client = to_i2c_client(dev); - struct gl520_data *data = i2c_get_clientdata(client); + struct gl520_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; int n = to_sensor_dev_attr(attr)->index; u8 r; long v; @@ -289,8 +290,8 @@ static ssize_t set_in_min(struct device *dev, struct device_attribute *attr, static ssize_t set_in_max(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { - struct i2c_client *client = to_i2c_client(dev); - struct gl520_data *data = i2c_get_clientdata(client); + struct gl520_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; int n = to_sensor_dev_attr(attr)->index; u8 r; long v; @@ -390,8 +391,8 @@ static ssize_t get_fan_off(struct device *dev, struct device_attribute *attr, static ssize_t set_fan_min(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { - struct i2c_client *client = to_i2c_client(dev); - struct gl520_data *data = i2c_get_clientdata(client); + struct gl520_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; int n = to_sensor_dev_attr(attr)->index; u8 r; unsigned long v; @@ -429,8 +430,8 @@ static ssize_t set_fan_min(struct device *dev, struct device_attribute *attr, static ssize_t set_fan_div(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { - struct i2c_client *client = to_i2c_client(dev); - struct gl520_data *data = i2c_get_clientdata(client); + struct gl520_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; int n = to_sensor_dev_attr(attr)->index; u8 r; unsigned long v; @@ -478,8 +479,8 @@ static ssize_t set_fan_div(struct device *dev, struct device_attribute *attr, static ssize_t set_fan_off(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { - struct i2c_client *client = to_i2c_client(dev); - struct gl520_data *data = i2c_get_clientdata(client); + struct gl520_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; u8 r; unsigned long v; int err; @@ -546,8 +547,8 @@ static ssize_t get_temp_max_hyst(struct device *dev, static ssize_t set_temp_max(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { - struct i2c_client *client = to_i2c_client(dev); - struct gl520_data *data = i2c_get_clientdata(client); + struct gl520_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; int n = to_sensor_dev_attr(attr)->index; long v; int err; @@ -566,8 +567,8 @@ static ssize_t set_temp_max(struct device *dev, struct device_attribute *attr, static ssize_t set_temp_max_hyst(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { - struct i2c_client *client = to_i2c_client(dev); - struct gl520_data *data = i2c_get_clientdata(client); + struct gl520_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; int n = to_sensor_dev_attr(attr)->index; long v; int err; @@ -619,8 +620,8 @@ static ssize_t get_beep_mask(struct device *dev, struct device_attribute *attr, static ssize_t set_beep_enable(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { - struct i2c_client *client = to_i2c_client(dev); - struct gl520_data *data = i2c_get_clientdata(client); + struct gl520_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; u8 r; unsigned long v; int err; @@ -643,8 +644,8 @@ static ssize_t set_beep_enable(struct device *dev, struct device_attribute static ssize_t set_beep_mask(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { - struct i2c_client *client = to_i2c_client(dev); - struct gl520_data *data = i2c_get_clientdata(client); + struct gl520_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; unsigned long r; int err; @@ -697,8 +698,8 @@ static ssize_t get_beep(struct device *dev, struct device_attribute *attr, static ssize_t set_beep(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { - struct i2c_client *client = to_i2c_client(dev); - struct gl520_data *data = i2c_get_clientdata(client); + struct gl520_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; int bitnr = to_sensor_dev_attr(attr)->index; unsigned long bit; @@ -877,58 +878,32 @@ static void gl520_init_client(struct i2c_client *client) static int gl520_probe(struct i2c_client *client, const struct i2c_device_id *id) { + struct device *dev = &client->dev; + struct device *hwmon_dev; struct gl520_data *data; - int err; - data = devm_kzalloc(&client->dev, sizeof(struct gl520_data), - GFP_KERNEL); + data = devm_kzalloc(dev, sizeof(struct gl520_data), GFP_KERNEL); if (!data) return -ENOMEM; i2c_set_clientdata(client, data); mutex_init(&data->update_lock); + data->client = client; /* Initialize the GL520SM chip */ gl520_init_client(client); - /* Register sysfs hooks */ - err = sysfs_create_group(&client->dev.kobj, &gl520_group); - if (err) - return err; + /* sysfs hooks */ + data->groups[0] = &gl520_group; if (data->two_temps) - err = sysfs_create_group(&client->dev.kobj, &gl520_group_temp2); + data->groups[1] = &gl520_group_temp2; else - err = sysfs_create_group(&client->dev.kobj, &gl520_group_in4); - - if (err) - goto exit_remove_files; - - data->hwmon_dev = hwmon_device_register(&client->dev); - if (IS_ERR(data->hwmon_dev)) { - err = PTR_ERR(data->hwmon_dev); - goto exit_remove_files; - } - - return 0; + data->groups[1] = &gl520_group_in4; -exit_remove_files: - sysfs_remove_group(&client->dev.kobj, &gl520_group); - sysfs_remove_group(&client->dev.kobj, &gl520_group_in4); - sysfs_remove_group(&client->dev.kobj, &gl520_group_temp2); - return err; -} - -static int gl520_remove(struct i2c_client *client) -{ - struct gl520_data *data = i2c_get_clientdata(client); - - hwmon_device_unregister(data->hwmon_dev); - sysfs_remove_group(&client->dev.kobj, &gl520_group); - sysfs_remove_group(&client->dev.kobj, &gl520_group_in4); - sysfs_remove_group(&client->dev.kobj, &gl520_group_temp2); - - return 0; + hwmon_dev = devm_hwmon_device_register_with_groups(dev, client->name, + data, data->groups); + return PTR_ERR_OR_ZERO(hwmon_dev); } static const struct i2c_device_id gl520_id[] = { @@ -943,7 +918,6 @@ static struct i2c_driver gl520_driver = { .name = "gl520sm", }, .probe = gl520_probe, - .remove = gl520_remove, .id_table = gl520_id, .detect = gl520_detect, .address_list = normal_i2c, -- cgit v1.2.3 From 48995bc4bb9446b81ddf32ee56be0e47aab50557 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Thu, 3 Jul 2014 21:45:33 +0800 Subject: hwmon: (adm1021) Avoid forward declaration Reorder functions to avoid forward declaration. Signed-off-by: Axel Lin Signed-off-by: Guenter Roeck --- drivers/hwmon/adm1021.c | 175 +++++++++++++++++++++++------------------------- 1 file changed, 83 insertions(+), 92 deletions(-) diff --git a/drivers/hwmon/adm1021.c b/drivers/hwmon/adm1021.c index d74241bb278c..1fdcc3e703b9 100644 --- a/drivers/hwmon/adm1021.c +++ b/drivers/hwmon/adm1021.c @@ -98,41 +98,63 @@ struct adm1021_data { u8 remote_temp_offset_prec; }; -static int adm1021_probe(struct i2c_client *client, - const struct i2c_device_id *id); -static int adm1021_detect(struct i2c_client *client, - struct i2c_board_info *info); -static void adm1021_init_client(struct i2c_client *client); -static struct adm1021_data *adm1021_update_device(struct device *dev); - /* (amalysh) read only mode, otherwise any limit's writing confuse BIOS */ static bool read_only; +static struct adm1021_data *adm1021_update_device(struct device *dev) +{ + struct adm1021_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; -static const struct i2c_device_id adm1021_id[] = { - { "adm1021", adm1021 }, - { "adm1023", adm1023 }, - { "max1617", max1617 }, - { "max1617a", max1617a }, - { "thmc10", thmc10 }, - { "lm84", lm84 }, - { "gl523sm", gl523sm }, - { "mc1066", mc1066 }, - { } -}; -MODULE_DEVICE_TABLE(i2c, adm1021_id); + mutex_lock(&data->update_lock); -/* This is the driver that will be inserted */ -static struct i2c_driver adm1021_driver = { - .class = I2C_CLASS_HWMON, - .driver = { - .name = "adm1021", - }, - .probe = adm1021_probe, - .id_table = adm1021_id, - .detect = adm1021_detect, - .address_list = normal_i2c, -}; + if (time_after(jiffies, data->last_updated + HZ + HZ / 2) + || !data->valid) { + int i; + + dev_dbg(dev, "Starting adm1021 update\n"); + + for (i = 0; i < 2; i++) { + data->temp[i] = 1000 * + (s8) i2c_smbus_read_byte_data( + client, ADM1021_REG_TEMP(i)); + data->temp_max[i] = 1000 * + (s8) i2c_smbus_read_byte_data( + client, ADM1021_REG_TOS_R(i)); + if (data->type != lm84) { + data->temp_min[i] = 1000 * + (s8) i2c_smbus_read_byte_data(client, + ADM1021_REG_THYST_R(i)); + } + } + data->alarms = i2c_smbus_read_byte_data(client, + ADM1021_REG_STATUS) & 0x7c; + if (data->type == adm1023) { + /* + * The ADM1023 provides 3 extra bits of precision for + * the remote sensor in extra registers. + */ + data->temp[1] += 125 * (i2c_smbus_read_byte_data( + client, ADM1023_REG_REM_TEMP_PREC) >> 5); + data->temp_max[1] += 125 * (i2c_smbus_read_byte_data( + client, ADM1023_REG_REM_TOS_PREC) >> 5); + data->temp_min[1] += 125 * (i2c_smbus_read_byte_data( + client, ADM1023_REG_REM_THYST_PREC) >> 5); + data->remote_temp_offset = + i2c_smbus_read_byte_data(client, + ADM1023_REG_REM_OFFSET); + data->remote_temp_offset_prec = + i2c_smbus_read_byte_data(client, + ADM1023_REG_REM_OFFSET_PREC); + } + data->last_updated = jiffies; + data->valid = 1; + } + + mutex_unlock(&data->update_lock); + + return data; +} static ssize_t show_temp(struct device *dev, struct device_attribute *devattr, char *buf) @@ -411,6 +433,15 @@ static int adm1021_detect(struct i2c_client *client, return 0; } +static void adm1021_init_client(struct i2c_client *client) +{ + /* Enable ADC and disable suspend mode */ + i2c_smbus_write_byte_data(client, ADM1021_REG_CONFIG_W, + i2c_smbus_read_byte_data(client, ADM1021_REG_CONFIG_R) & 0xBF); + /* Set Conversion rate to 1/sec (this can be tinkered with) */ + i2c_smbus_write_byte_data(client, ADM1021_REG_CONV_RATE_W, 0x04); +} + static int adm1021_probe(struct i2c_client *client, const struct i2c_device_id *id) { @@ -440,69 +471,29 @@ static int adm1021_probe(struct i2c_client *client, return PTR_ERR_OR_ZERO(hwmon_dev); } -static void adm1021_init_client(struct i2c_client *client) -{ - /* Enable ADC and disable suspend mode */ - i2c_smbus_write_byte_data(client, ADM1021_REG_CONFIG_W, - i2c_smbus_read_byte_data(client, ADM1021_REG_CONFIG_R) & 0xBF); - /* Set Conversion rate to 1/sec (this can be tinkered with) */ - i2c_smbus_write_byte_data(client, ADM1021_REG_CONV_RATE_W, 0x04); -} - -static struct adm1021_data *adm1021_update_device(struct device *dev) -{ - struct adm1021_data *data = dev_get_drvdata(dev); - struct i2c_client *client = data->client; - - mutex_lock(&data->update_lock); - - if (time_after(jiffies, data->last_updated + HZ + HZ / 2) - || !data->valid) { - int i; - - dev_dbg(dev, "Starting adm1021 update\n"); - - for (i = 0; i < 2; i++) { - data->temp[i] = 1000 * - (s8) i2c_smbus_read_byte_data( - client, ADM1021_REG_TEMP(i)); - data->temp_max[i] = 1000 * - (s8) i2c_smbus_read_byte_data( - client, ADM1021_REG_TOS_R(i)); - if (data->type != lm84) { - data->temp_min[i] = 1000 * - (s8) i2c_smbus_read_byte_data(client, - ADM1021_REG_THYST_R(i)); - } - } - data->alarms = i2c_smbus_read_byte_data(client, - ADM1021_REG_STATUS) & 0x7c; - if (data->type == adm1023) { - /* - * The ADM1023 provides 3 extra bits of precision for - * the remote sensor in extra registers. - */ - data->temp[1] += 125 * (i2c_smbus_read_byte_data( - client, ADM1023_REG_REM_TEMP_PREC) >> 5); - data->temp_max[1] += 125 * (i2c_smbus_read_byte_data( - client, ADM1023_REG_REM_TOS_PREC) >> 5); - data->temp_min[1] += 125 * (i2c_smbus_read_byte_data( - client, ADM1023_REG_REM_THYST_PREC) >> 5); - data->remote_temp_offset = - i2c_smbus_read_byte_data(client, - ADM1023_REG_REM_OFFSET); - data->remote_temp_offset_prec = - i2c_smbus_read_byte_data(client, - ADM1023_REG_REM_OFFSET_PREC); - } - data->last_updated = jiffies; - data->valid = 1; - } - - mutex_unlock(&data->update_lock); +static const struct i2c_device_id adm1021_id[] = { + { "adm1021", adm1021 }, + { "adm1023", adm1023 }, + { "max1617", max1617 }, + { "max1617a", max1617a }, + { "thmc10", thmc10 }, + { "lm84", lm84 }, + { "gl523sm", gl523sm }, + { "mc1066", mc1066 }, + { } +}; +MODULE_DEVICE_TABLE(i2c, adm1021_id); - return data; -} +static struct i2c_driver adm1021_driver = { + .class = I2C_CLASS_HWMON, + .driver = { + .name = "adm1021", + }, + .probe = adm1021_probe, + .id_table = adm1021_id, + .detect = adm1021_detect, + .address_list = normal_i2c, +}; module_i2c_driver(adm1021_driver); -- cgit v1.2.3 From 851a7afa82c9cbbfa2f85151872a29db0a3f6cbf Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Thu, 3 Jul 2014 21:48:15 +0800 Subject: hwmon: (adm1025) Avoid forward declaration Reorder functions to avoid forward declaration. Signed-off-by: Axel Lin Signed-off-by: Guenter Roeck --- drivers/hwmon/adm1025.c | 224 ++++++++++++++++++++++-------------------------- 1 file changed, 104 insertions(+), 120 deletions(-) diff --git a/drivers/hwmon/adm1025.c b/drivers/hwmon/adm1025.c index 9ffc4c8ca8b5..0533c2c679f6 100644 --- a/drivers/hwmon/adm1025.c +++ b/drivers/hwmon/adm1025.c @@ -102,41 +102,6 @@ static const int in_scale[6] = { 2500, 2250, 3300, 5000, 12000, 3300 }; (((val) < 0 ? (val) - 500 : \ (val) + 500) / 1000)) -/* - * Functions declaration - */ - -static int adm1025_probe(struct i2c_client *client, - const struct i2c_device_id *id); -static int adm1025_detect(struct i2c_client *client, - struct i2c_board_info *info); -static void adm1025_init_client(struct i2c_client *client); -static int adm1025_remove(struct i2c_client *client); -static struct adm1025_data *adm1025_update_device(struct device *dev); - -/* - * Driver data (common to all clients) - */ - -static const struct i2c_device_id adm1025_id[] = { - { "adm1025", adm1025 }, - { "ne1619", ne1619 }, - { } -}; -MODULE_DEVICE_TABLE(i2c, adm1025_id); - -static struct i2c_driver adm1025_driver = { - .class = I2C_CLASS_HWMON, - .driver = { - .name = "adm1025", - }, - .probe = adm1025_probe, - .remove = adm1025_remove, - .id_table = adm1025_id, - .detect = adm1025_detect, - .address_list = normal_i2c, -}; - /* * Client data (each client gets its own) */ @@ -158,6 +123,51 @@ struct adm1025_data { u8 vrm; }; +static struct adm1025_data *adm1025_update_device(struct device *dev) +{ + struct i2c_client *client = to_i2c_client(dev); + struct adm1025_data *data = i2c_get_clientdata(client); + + mutex_lock(&data->update_lock); + + if (time_after(jiffies, data->last_updated + HZ * 2) || !data->valid) { + int i; + + dev_dbg(&client->dev, "Updating data.\n"); + for (i = 0; i < 6; i++) { + data->in[i] = i2c_smbus_read_byte_data(client, + ADM1025_REG_IN(i)); + data->in_min[i] = i2c_smbus_read_byte_data(client, + ADM1025_REG_IN_MIN(i)); + data->in_max[i] = i2c_smbus_read_byte_data(client, + ADM1025_REG_IN_MAX(i)); + } + for (i = 0; i < 2; i++) { + data->temp[i] = i2c_smbus_read_byte_data(client, + ADM1025_REG_TEMP(i)); + data->temp_min[i] = i2c_smbus_read_byte_data(client, + ADM1025_REG_TEMP_LOW(i)); + data->temp_max[i] = i2c_smbus_read_byte_data(client, + ADM1025_REG_TEMP_HIGH(i)); + } + data->alarms = i2c_smbus_read_byte_data(client, + ADM1025_REG_STATUS1) + | (i2c_smbus_read_byte_data(client, + ADM1025_REG_STATUS2) << 8); + data->vid = (i2c_smbus_read_byte_data(client, + ADM1025_REG_VID) & 0x0f) + | ((i2c_smbus_read_byte_data(client, + ADM1025_REG_VID4) & 0x01) << 4); + + data->last_updated = jiffies; + data->valid = 1; + } + + mutex_unlock(&data->update_lock); + + return data; +} + /* * Sysfs stuff */ @@ -470,6 +480,48 @@ static int adm1025_detect(struct i2c_client *client, return 0; } +static void adm1025_init_client(struct i2c_client *client) +{ + u8 reg; + struct adm1025_data *data = i2c_get_clientdata(client); + int i; + + data->vrm = vid_which_vrm(); + + /* + * Set high limits + * Usually we avoid setting limits on driver init, but it happens + * that the ADM1025 comes with stupid default limits (all registers + * set to 0). In case the chip has not gone through any limit + * setting yet, we better set the high limits to the max so that + * no alarm triggers. + */ + for (i = 0; i < 6; i++) { + reg = i2c_smbus_read_byte_data(client, + ADM1025_REG_IN_MAX(i)); + if (reg == 0) + i2c_smbus_write_byte_data(client, + ADM1025_REG_IN_MAX(i), + 0xFF); + } + for (i = 0; i < 2; i++) { + reg = i2c_smbus_read_byte_data(client, + ADM1025_REG_TEMP_HIGH(i)); + if (reg == 0) + i2c_smbus_write_byte_data(client, + ADM1025_REG_TEMP_HIGH(i), + 0x7F); + } + + /* + * Start the conversions + */ + reg = i2c_smbus_read_byte_data(client, ADM1025_REG_CONFIG); + if (!(reg & 0x01)) + i2c_smbus_write_byte_data(client, ADM1025_REG_CONFIG, + (reg&0x7E)|0x01); +} + static int adm1025_probe(struct i2c_client *client, const struct i2c_device_id *id) { @@ -515,48 +567,6 @@ exit_remove: return err; } -static void adm1025_init_client(struct i2c_client *client) -{ - u8 reg; - struct adm1025_data *data = i2c_get_clientdata(client); - int i; - - data->vrm = vid_which_vrm(); - - /* - * Set high limits - * Usually we avoid setting limits on driver init, but it happens - * that the ADM1025 comes with stupid default limits (all registers - * set to 0). In case the chip has not gone through any limit - * setting yet, we better set the high limits to the max so that - * no alarm triggers. - */ - for (i = 0; i < 6; i++) { - reg = i2c_smbus_read_byte_data(client, - ADM1025_REG_IN_MAX(i)); - if (reg == 0) - i2c_smbus_write_byte_data(client, - ADM1025_REG_IN_MAX(i), - 0xFF); - } - for (i = 0; i < 2; i++) { - reg = i2c_smbus_read_byte_data(client, - ADM1025_REG_TEMP_HIGH(i)); - if (reg == 0) - i2c_smbus_write_byte_data(client, - ADM1025_REG_TEMP_HIGH(i), - 0x7F); - } - - /* - * Start the conversions - */ - reg = i2c_smbus_read_byte_data(client, ADM1025_REG_CONFIG); - if (!(reg & 0x01)) - i2c_smbus_write_byte_data(client, ADM1025_REG_CONFIG, - (reg&0x7E)|0x01); -} - static int adm1025_remove(struct i2c_client *client) { struct adm1025_data *data = i2c_get_clientdata(client); @@ -568,50 +578,24 @@ static int adm1025_remove(struct i2c_client *client) return 0; } -static struct adm1025_data *adm1025_update_device(struct device *dev) -{ - struct i2c_client *client = to_i2c_client(dev); - struct adm1025_data *data = i2c_get_clientdata(client); - - mutex_lock(&data->update_lock); - - if (time_after(jiffies, data->last_updated + HZ * 2) || !data->valid) { - int i; - - dev_dbg(&client->dev, "Updating data.\n"); - for (i = 0; i < 6; i++) { - data->in[i] = i2c_smbus_read_byte_data(client, - ADM1025_REG_IN(i)); - data->in_min[i] = i2c_smbus_read_byte_data(client, - ADM1025_REG_IN_MIN(i)); - data->in_max[i] = i2c_smbus_read_byte_data(client, - ADM1025_REG_IN_MAX(i)); - } - for (i = 0; i < 2; i++) { - data->temp[i] = i2c_smbus_read_byte_data(client, - ADM1025_REG_TEMP(i)); - data->temp_min[i] = i2c_smbus_read_byte_data(client, - ADM1025_REG_TEMP_LOW(i)); - data->temp_max[i] = i2c_smbus_read_byte_data(client, - ADM1025_REG_TEMP_HIGH(i)); - } - data->alarms = i2c_smbus_read_byte_data(client, - ADM1025_REG_STATUS1) - | (i2c_smbus_read_byte_data(client, - ADM1025_REG_STATUS2) << 8); - data->vid = (i2c_smbus_read_byte_data(client, - ADM1025_REG_VID) & 0x0f) - | ((i2c_smbus_read_byte_data(client, - ADM1025_REG_VID4) & 0x01) << 4); - - data->last_updated = jiffies; - data->valid = 1; - } - - mutex_unlock(&data->update_lock); +static const struct i2c_device_id adm1025_id[] = { + { "adm1025", adm1025 }, + { "ne1619", ne1619 }, + { } +}; +MODULE_DEVICE_TABLE(i2c, adm1025_id); - return data; -} +static struct i2c_driver adm1025_driver = { + .class = I2C_CLASS_HWMON, + .driver = { + .name = "adm1025", + }, + .probe = adm1025_probe, + .remove = adm1025_remove, + .id_table = adm1025_id, + .detect = adm1025_detect, + .address_list = normal_i2c, +}; module_i2c_driver(adm1025_driver); -- cgit v1.2.3 From aab3f57a11723c75477f43d7a510c148f2269d16 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Thu, 3 Jul 2014 21:49:27 +0800 Subject: hwmon: (adm1025) Convert to devm_hwmon_device_register_with_groups Use ATTRIBUTE_GROUPS macro and devm_hwmon_device_register_with_groups() to simplify the code a bit. Signed-off-by: Axel Lin Signed-off-by: Guenter Roeck --- drivers/hwmon/adm1025.c | 71 ++++++++++++++++--------------------------------- 1 file changed, 23 insertions(+), 48 deletions(-) diff --git a/drivers/hwmon/adm1025.c b/drivers/hwmon/adm1025.c index 0533c2c679f6..d3d0e8cf27b4 100644 --- a/drivers/hwmon/adm1025.c +++ b/drivers/hwmon/adm1025.c @@ -107,7 +107,8 @@ static const int in_scale[6] = { 2500, 2250, 3300, 5000, 12000, 3300 }; */ struct adm1025_data { - struct device *hwmon_dev; + struct i2c_client *client; + const struct attribute_group *groups[3]; struct mutex update_lock; char valid; /* zero until following fields are valid */ unsigned long last_updated; /* in jiffies */ @@ -125,8 +126,8 @@ struct adm1025_data { static struct adm1025_data *adm1025_update_device(struct device *dev) { - struct i2c_client *client = to_i2c_client(dev); - struct adm1025_data *data = i2c_get_clientdata(client); + struct adm1025_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; mutex_lock(&data->update_lock); @@ -227,8 +228,8 @@ static ssize_t set_in_min(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { int index = to_sensor_dev_attr(attr)->index; - struct i2c_client *client = to_i2c_client(dev); - struct adm1025_data *data = i2c_get_clientdata(client); + struct adm1025_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; long val; int err; @@ -248,8 +249,8 @@ static ssize_t set_in_max(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { int index = to_sensor_dev_attr(attr)->index; - struct i2c_client *client = to_i2c_client(dev); - struct adm1025_data *data = i2c_get_clientdata(client); + struct adm1025_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; long val; int err; @@ -283,8 +284,8 @@ static ssize_t set_temp_min(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { int index = to_sensor_dev_attr(attr)->index; - struct i2c_client *client = to_i2c_client(dev); - struct adm1025_data *data = i2c_get_clientdata(client); + struct adm1025_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; long val; int err; @@ -304,8 +305,8 @@ static ssize_t set_temp_max(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { int index = to_sensor_dev_attr(attr)->index; - struct i2c_client *client = to_i2c_client(dev); - struct adm1025_data *data = i2c_get_clientdata(client); + struct adm1025_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; long val; int err; @@ -525,57 +526,32 @@ static void adm1025_init_client(struct i2c_client *client) static int adm1025_probe(struct i2c_client *client, const struct i2c_device_id *id) { + struct device *dev = &client->dev; + struct device *hwmon_dev; struct adm1025_data *data; - int err; u8 config; - data = devm_kzalloc(&client->dev, sizeof(struct adm1025_data), - GFP_KERNEL); + data = devm_kzalloc(dev, sizeof(struct adm1025_data), GFP_KERNEL); if (!data) return -ENOMEM; i2c_set_clientdata(client, data); + data->client = client; mutex_init(&data->update_lock); /* Initialize the ADM1025 chip */ adm1025_init_client(client); - /* Register sysfs hooks */ - err = sysfs_create_group(&client->dev.kobj, &adm1025_group); - if (err) - return err; - + /* sysfs hooks */ + data->groups[0] = &adm1025_group; /* Pin 11 is either in4 (+12V) or VID4 */ config = i2c_smbus_read_byte_data(client, ADM1025_REG_CONFIG); - if (!(config & 0x20)) { - err = sysfs_create_group(&client->dev.kobj, &adm1025_group_in4); - if (err) - goto exit_remove; - } - - data->hwmon_dev = hwmon_device_register(&client->dev); - if (IS_ERR(data->hwmon_dev)) { - err = PTR_ERR(data->hwmon_dev); - goto exit_remove; - } - - return 0; + if (!(config & 0x20)) + data->groups[1] = &adm1025_group_in4; -exit_remove: - sysfs_remove_group(&client->dev.kobj, &adm1025_group); - sysfs_remove_group(&client->dev.kobj, &adm1025_group_in4); - return err; -} - -static int adm1025_remove(struct i2c_client *client) -{ - struct adm1025_data *data = i2c_get_clientdata(client); - - hwmon_device_unregister(data->hwmon_dev); - sysfs_remove_group(&client->dev.kobj, &adm1025_group); - sysfs_remove_group(&client->dev.kobj, &adm1025_group_in4); - - return 0; + hwmon_dev = devm_hwmon_device_register_with_groups(dev, client->name, + data, data->groups); + return PTR_ERR_OR_ZERO(hwmon_dev); } static const struct i2c_device_id adm1025_id[] = { @@ -591,7 +567,6 @@ static struct i2c_driver adm1025_driver = { .name = "adm1025", }, .probe = adm1025_probe, - .remove = adm1025_remove, .id_table = adm1025_id, .detect = adm1025_detect, .address_list = normal_i2c, -- cgit v1.2.3 From 97df55661a2d60e6554ce9a9ee6fb47606ddc772 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Thu, 3 Jul 2014 21:51:43 +0800 Subject: hwmon: (adm1026) Avoid forward declaration Reorder functions to avoid forward declaration. Signed-off-by: Axel Lin Signed-off-by: Guenter Roeck --- drivers/hwmon/adm1026.c | 452 +++++++++++++++++++++++------------------------- 1 file changed, 219 insertions(+), 233 deletions(-) diff --git a/drivers/hwmon/adm1026.c b/drivers/hwmon/adm1026.c index b3498acb9ab4..cf3ed29943f3 100644 --- a/drivers/hwmon/adm1026.c +++ b/drivers/hwmon/adm1026.c @@ -298,37 +298,6 @@ struct adm1026_data { u8 config3; /* Register value */ }; -static int adm1026_probe(struct i2c_client *client, - const struct i2c_device_id *id); -static int adm1026_detect(struct i2c_client *client, - struct i2c_board_info *info); -static int adm1026_remove(struct i2c_client *client); -static int adm1026_read_value(struct i2c_client *client, u8 reg); -static int adm1026_write_value(struct i2c_client *client, u8 reg, int value); -static void adm1026_print_gpio(struct i2c_client *client); -static void adm1026_fixup_gpio(struct i2c_client *client); -static struct adm1026_data *adm1026_update_device(struct device *dev); -static void adm1026_init_client(struct i2c_client *client); - - -static const struct i2c_device_id adm1026_id[] = { - { "adm1026", 0 }, - { } -}; -MODULE_DEVICE_TABLE(i2c, adm1026_id); - -static struct i2c_driver adm1026_driver = { - .class = I2C_CLASS_HWMON, - .driver = { - .name = "adm1026", - }, - .probe = adm1026_probe, - .remove = adm1026_remove, - .id_table = adm1026_id, - .detect = adm1026_detect, - .address_list = normal_i2c, -}; - static int adm1026_read_value(struct i2c_client *client, u8 reg) { int res; @@ -357,208 +326,6 @@ static int adm1026_write_value(struct i2c_client *client, u8 reg, int value) return res; } -static void adm1026_init_client(struct i2c_client *client) -{ - int value, i; - struct adm1026_data *data = i2c_get_clientdata(client); - - dev_dbg(&client->dev, "Initializing device\n"); - /* Read chip config */ - data->config1 = adm1026_read_value(client, ADM1026_REG_CONFIG1); - data->config2 = adm1026_read_value(client, ADM1026_REG_CONFIG2); - data->config3 = adm1026_read_value(client, ADM1026_REG_CONFIG3); - - /* Inform user of chip config */ - dev_dbg(&client->dev, "ADM1026_REG_CONFIG1 is: 0x%02x\n", - data->config1); - if ((data->config1 & CFG1_MONITOR) == 0) { - dev_dbg(&client->dev, - "Monitoring not currently enabled.\n"); - } - if (data->config1 & CFG1_INT_ENABLE) { - dev_dbg(&client->dev, - "SMBALERT interrupts are enabled.\n"); - } - if (data->config1 & CFG1_AIN8_9) { - dev_dbg(&client->dev, - "in8 and in9 enabled. temp3 disabled.\n"); - } else { - dev_dbg(&client->dev, - "temp3 enabled. in8 and in9 disabled.\n"); - } - if (data->config1 & CFG1_THERM_HOT) { - dev_dbg(&client->dev, - "Automatic THERM, PWM, and temp limits enabled.\n"); - } - - if (data->config3 & CFG3_GPIO16_ENABLE) { - dev_dbg(&client->dev, - "GPIO16 enabled. THERM pin disabled.\n"); - } else { - dev_dbg(&client->dev, - "THERM pin enabled. GPIO16 disabled.\n"); - } - if (data->config3 & CFG3_VREF_250) - dev_dbg(&client->dev, "Vref is 2.50 Volts.\n"); - else - dev_dbg(&client->dev, "Vref is 1.82 Volts.\n"); - /* Read and pick apart the existing GPIO configuration */ - value = 0; - for (i = 0; i <= 15; ++i) { - if ((i & 0x03) == 0) { - value = adm1026_read_value(client, - ADM1026_REG_GPIO_CFG_0_3 + i / 4); - } - data->gpio_config[i] = value & 0x03; - value >>= 2; - } - data->gpio_config[16] = (data->config3 >> 6) & 0x03; - - /* ... and then print it */ - adm1026_print_gpio(client); - - /* - * If the user asks us to reprogram the GPIO config, then - * do it now. - */ - if (gpio_input[0] != -1 || gpio_output[0] != -1 - || gpio_inverted[0] != -1 || gpio_normal[0] != -1 - || gpio_fan[0] != -1) { - adm1026_fixup_gpio(client); - } - - /* - * WE INTENTIONALLY make no changes to the limits, - * offsets, pwms, fans and zones. If they were - * configured, we don't want to mess with them. - * If they weren't, the default is 100% PWM, no - * control and will suffice until 'sensors -s' - * can be run by the user. We DO set the default - * value for pwm1.auto_pwm_min to its maximum - * so that enabling automatic pwm fan control - * without first setting a value for pwm1.auto_pwm_min - * will not result in potentially dangerous fan speed decrease. - */ - data->pwm1.auto_pwm_min = 255; - /* Start monitoring */ - value = adm1026_read_value(client, ADM1026_REG_CONFIG1); - /* Set MONITOR, clear interrupt acknowledge and s/w reset */ - value = (value | CFG1_MONITOR) & (~CFG1_INT_CLEAR & ~CFG1_RESET); - dev_dbg(&client->dev, "Setting CONFIG to: 0x%02x\n", value); - data->config1 = value; - adm1026_write_value(client, ADM1026_REG_CONFIG1, value); - - /* initialize fan_div[] to hardware defaults */ - value = adm1026_read_value(client, ADM1026_REG_FAN_DIV_0_3) | - (adm1026_read_value(client, ADM1026_REG_FAN_DIV_4_7) << 8); - for (i = 0; i <= 7; ++i) { - data->fan_div[i] = DIV_FROM_REG(value & 0x03); - value >>= 2; - } -} - -static void adm1026_print_gpio(struct i2c_client *client) -{ - struct adm1026_data *data = i2c_get_clientdata(client); - int i; - - dev_dbg(&client->dev, "GPIO config is:\n"); - for (i = 0; i <= 7; ++i) { - if (data->config2 & (1 << i)) { - dev_dbg(&client->dev, "\t%sGP%s%d\n", - data->gpio_config[i] & 0x02 ? "" : "!", - data->gpio_config[i] & 0x01 ? "OUT" : "IN", - i); - } else { - dev_dbg(&client->dev, "\tFAN%d\n", i); - } - } - for (i = 8; i <= 15; ++i) { - dev_dbg(&client->dev, "\t%sGP%s%d\n", - data->gpio_config[i] & 0x02 ? "" : "!", - data->gpio_config[i] & 0x01 ? "OUT" : "IN", - i); - } - if (data->config3 & CFG3_GPIO16_ENABLE) { - dev_dbg(&client->dev, "\t%sGP%s16\n", - data->gpio_config[16] & 0x02 ? "" : "!", - data->gpio_config[16] & 0x01 ? "OUT" : "IN"); - } else { - /* GPIO16 is THERM */ - dev_dbg(&client->dev, "\tTHERM\n"); - } -} - -static void adm1026_fixup_gpio(struct i2c_client *client) -{ - struct adm1026_data *data = i2c_get_clientdata(client); - int i; - int value; - - /* Make the changes requested. */ - /* - * We may need to unlock/stop monitoring or soft-reset the - * chip before we can make changes. This hasn't been - * tested much. FIXME - */ - - /* Make outputs */ - for (i = 0; i <= 16; ++i) { - if (gpio_output[i] >= 0 && gpio_output[i] <= 16) - data->gpio_config[gpio_output[i]] |= 0x01; - /* if GPIO0-7 is output, it isn't a FAN tach */ - if (gpio_output[i] >= 0 && gpio_output[i] <= 7) - data->config2 |= 1 << gpio_output[i]; - } - - /* Input overrides output */ - for (i = 0; i <= 16; ++i) { - if (gpio_input[i] >= 0 && gpio_input[i] <= 16) - data->gpio_config[gpio_input[i]] &= ~0x01; - /* if GPIO0-7 is input, it isn't a FAN tach */ - if (gpio_input[i] >= 0 && gpio_input[i] <= 7) - data->config2 |= 1 << gpio_input[i]; - } - - /* Inverted */ - for (i = 0; i <= 16; ++i) { - if (gpio_inverted[i] >= 0 && gpio_inverted[i] <= 16) - data->gpio_config[gpio_inverted[i]] &= ~0x02; - } - - /* Normal overrides inverted */ - for (i = 0; i <= 16; ++i) { - if (gpio_normal[i] >= 0 && gpio_normal[i] <= 16) - data->gpio_config[gpio_normal[i]] |= 0x02; - } - - /* Fan overrides input and output */ - for (i = 0; i <= 7; ++i) { - if (gpio_fan[i] >= 0 && gpio_fan[i] <= 7) - data->config2 &= ~(1 << gpio_fan[i]); - } - - /* Write new configs to registers */ - adm1026_write_value(client, ADM1026_REG_CONFIG2, data->config2); - data->config3 = (data->config3 & 0x3f) - | ((data->gpio_config[16] & 0x03) << 6); - adm1026_write_value(client, ADM1026_REG_CONFIG3, data->config3); - for (i = 15, value = 0; i >= 0; --i) { - value <<= 2; - value |= data->gpio_config[i] & 0x03; - if ((i & 0x03) == 0) { - adm1026_write_value(client, - ADM1026_REG_GPIO_CFG_0_3 + i/4, - value); - value = 0; - } - } - - /* Print the new config */ - adm1026_print_gpio(client); -} - - static struct adm1026_data *adm1026_update_device(struct device *dev) { struct i2c_client *client = to_i2c_client(dev); @@ -1829,6 +1596,207 @@ static int adm1026_detect(struct i2c_client *client, return 0; } +static void adm1026_print_gpio(struct i2c_client *client) +{ + struct adm1026_data *data = i2c_get_clientdata(client); + int i; + + dev_dbg(&client->dev, "GPIO config is:\n"); + for (i = 0; i <= 7; ++i) { + if (data->config2 & (1 << i)) { + dev_dbg(&client->dev, "\t%sGP%s%d\n", + data->gpio_config[i] & 0x02 ? "" : "!", + data->gpio_config[i] & 0x01 ? "OUT" : "IN", + i); + } else { + dev_dbg(&client->dev, "\tFAN%d\n", i); + } + } + for (i = 8; i <= 15; ++i) { + dev_dbg(&client->dev, "\t%sGP%s%d\n", + data->gpio_config[i] & 0x02 ? "" : "!", + data->gpio_config[i] & 0x01 ? "OUT" : "IN", + i); + } + if (data->config3 & CFG3_GPIO16_ENABLE) { + dev_dbg(&client->dev, "\t%sGP%s16\n", + data->gpio_config[16] & 0x02 ? "" : "!", + data->gpio_config[16] & 0x01 ? "OUT" : "IN"); + } else { + /* GPIO16 is THERM */ + dev_dbg(&client->dev, "\tTHERM\n"); + } +} + +static void adm1026_fixup_gpio(struct i2c_client *client) +{ + struct adm1026_data *data = i2c_get_clientdata(client); + int i; + int value; + + /* Make the changes requested. */ + /* + * We may need to unlock/stop monitoring or soft-reset the + * chip before we can make changes. This hasn't been + * tested much. FIXME + */ + + /* Make outputs */ + for (i = 0; i <= 16; ++i) { + if (gpio_output[i] >= 0 && gpio_output[i] <= 16) + data->gpio_config[gpio_output[i]] |= 0x01; + /* if GPIO0-7 is output, it isn't a FAN tach */ + if (gpio_output[i] >= 0 && gpio_output[i] <= 7) + data->config2 |= 1 << gpio_output[i]; + } + + /* Input overrides output */ + for (i = 0; i <= 16; ++i) { + if (gpio_input[i] >= 0 && gpio_input[i] <= 16) + data->gpio_config[gpio_input[i]] &= ~0x01; + /* if GPIO0-7 is input, it isn't a FAN tach */ + if (gpio_input[i] >= 0 && gpio_input[i] <= 7) + data->config2 |= 1 << gpio_input[i]; + } + + /* Inverted */ + for (i = 0; i <= 16; ++i) { + if (gpio_inverted[i] >= 0 && gpio_inverted[i] <= 16) + data->gpio_config[gpio_inverted[i]] &= ~0x02; + } + + /* Normal overrides inverted */ + for (i = 0; i <= 16; ++i) { + if (gpio_normal[i] >= 0 && gpio_normal[i] <= 16) + data->gpio_config[gpio_normal[i]] |= 0x02; + } + + /* Fan overrides input and output */ + for (i = 0; i <= 7; ++i) { + if (gpio_fan[i] >= 0 && gpio_fan[i] <= 7) + data->config2 &= ~(1 << gpio_fan[i]); + } + + /* Write new configs to registers */ + adm1026_write_value(client, ADM1026_REG_CONFIG2, data->config2); + data->config3 = (data->config3 & 0x3f) + | ((data->gpio_config[16] & 0x03) << 6); + adm1026_write_value(client, ADM1026_REG_CONFIG3, data->config3); + for (i = 15, value = 0; i >= 0; --i) { + value <<= 2; + value |= data->gpio_config[i] & 0x03; + if ((i & 0x03) == 0) { + adm1026_write_value(client, + ADM1026_REG_GPIO_CFG_0_3 + i/4, + value); + value = 0; + } + } + + /* Print the new config */ + adm1026_print_gpio(client); +} + +static void adm1026_init_client(struct i2c_client *client) +{ + int value, i; + struct adm1026_data *data = i2c_get_clientdata(client); + + dev_dbg(&client->dev, "Initializing device\n"); + /* Read chip config */ + data->config1 = adm1026_read_value(client, ADM1026_REG_CONFIG1); + data->config2 = adm1026_read_value(client, ADM1026_REG_CONFIG2); + data->config3 = adm1026_read_value(client, ADM1026_REG_CONFIG3); + + /* Inform user of chip config */ + dev_dbg(&client->dev, "ADM1026_REG_CONFIG1 is: 0x%02x\n", + data->config1); + if ((data->config1 & CFG1_MONITOR) == 0) { + dev_dbg(&client->dev, + "Monitoring not currently enabled.\n"); + } + if (data->config1 & CFG1_INT_ENABLE) { + dev_dbg(&client->dev, + "SMBALERT interrupts are enabled.\n"); + } + if (data->config1 & CFG1_AIN8_9) { + dev_dbg(&client->dev, + "in8 and in9 enabled. temp3 disabled.\n"); + } else { + dev_dbg(&client->dev, + "temp3 enabled. in8 and in9 disabled.\n"); + } + if (data->config1 & CFG1_THERM_HOT) { + dev_dbg(&client->dev, + "Automatic THERM, PWM, and temp limits enabled.\n"); + } + + if (data->config3 & CFG3_GPIO16_ENABLE) { + dev_dbg(&client->dev, + "GPIO16 enabled. THERM pin disabled.\n"); + } else { + dev_dbg(&client->dev, + "THERM pin enabled. GPIO16 disabled.\n"); + } + if (data->config3 & CFG3_VREF_250) + dev_dbg(&client->dev, "Vref is 2.50 Volts.\n"); + else + dev_dbg(&client->dev, "Vref is 1.82 Volts.\n"); + /* Read and pick apart the existing GPIO configuration */ + value = 0; + for (i = 0; i <= 15; ++i) { + if ((i & 0x03) == 0) { + value = adm1026_read_value(client, + ADM1026_REG_GPIO_CFG_0_3 + i / 4); + } + data->gpio_config[i] = value & 0x03; + value >>= 2; + } + data->gpio_config[16] = (data->config3 >> 6) & 0x03; + + /* ... and then print it */ + adm1026_print_gpio(client); + + /* + * If the user asks us to reprogram the GPIO config, then + * do it now. + */ + if (gpio_input[0] != -1 || gpio_output[0] != -1 + || gpio_inverted[0] != -1 || gpio_normal[0] != -1 + || gpio_fan[0] != -1) { + adm1026_fixup_gpio(client); + } + + /* + * WE INTENTIONALLY make no changes to the limits, + * offsets, pwms, fans and zones. If they were + * configured, we don't want to mess with them. + * If they weren't, the default is 100% PWM, no + * control and will suffice until 'sensors -s' + * can be run by the user. We DO set the default + * value for pwm1.auto_pwm_min to its maximum + * so that enabling automatic pwm fan control + * without first setting a value for pwm1.auto_pwm_min + * will not result in potentially dangerous fan speed decrease. + */ + data->pwm1.auto_pwm_min = 255; + /* Start monitoring */ + value = adm1026_read_value(client, ADM1026_REG_CONFIG1); + /* Set MONITOR, clear interrupt acknowledge and s/w reset */ + value = (value | CFG1_MONITOR) & (~CFG1_INT_CLEAR & ~CFG1_RESET); + dev_dbg(&client->dev, "Setting CONFIG to: 0x%02x\n", value); + data->config1 = value; + adm1026_write_value(client, ADM1026_REG_CONFIG1, value); + + /* initialize fan_div[] to hardware defaults */ + value = adm1026_read_value(client, ADM1026_REG_FAN_DIV_0_3) | + (adm1026_read_value(client, ADM1026_REG_FAN_DIV_4_7) << 8); + for (i = 0; i <= 7; ++i) { + data->fan_div[i] = DIV_FROM_REG(value & 0x03); + value >>= 2; + } +} + static int adm1026_probe(struct i2c_client *client, const struct i2c_device_id *id) { @@ -1892,6 +1860,24 @@ static int adm1026_remove(struct i2c_client *client) return 0; } +static const struct i2c_device_id adm1026_id[] = { + { "adm1026", 0 }, + { } +}; +MODULE_DEVICE_TABLE(i2c, adm1026_id); + +static struct i2c_driver adm1026_driver = { + .class = I2C_CLASS_HWMON, + .driver = { + .name = "adm1026", + }, + .probe = adm1026_probe, + .remove = adm1026_remove, + .id_table = adm1026_id, + .detect = adm1026_detect, + .address_list = normal_i2c, +}; + module_i2c_driver(adm1026_driver); MODULE_LICENSE("GPL"); -- cgit v1.2.3 From b591d3c1964e7cba6582eb22c7033d37c31a4e99 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Thu, 3 Jul 2014 21:53:01 +0800 Subject: hwmon: (adm1026) Convert to devm_hwmon_device_register_with_groups Use ATTRIBUTE_GROUPS macro and devm_hwmon_device_register_with_groups() to simplify the code a bit. Signed-off-by: Axel Lin Signed-off-by: Guenter Roeck --- drivers/hwmon/adm1026.c | 140 +++++++++++++++++++----------------------------- 1 file changed, 55 insertions(+), 85 deletions(-) diff --git a/drivers/hwmon/adm1026.c b/drivers/hwmon/adm1026.c index cf3ed29943f3..ca8430f92564 100644 --- a/drivers/hwmon/adm1026.c +++ b/drivers/hwmon/adm1026.c @@ -266,7 +266,8 @@ struct pwm_data { }; struct adm1026_data { - struct device *hwmon_dev; + struct i2c_client *client; + const struct attribute_group *groups[3]; struct mutex update_lock; int valid; /* !=0 if following fields are valid */ @@ -328,8 +329,8 @@ static int adm1026_write_value(struct i2c_client *client, u8 reg, int value) static struct adm1026_data *adm1026_update_device(struct device *dev) { - struct i2c_client *client = to_i2c_client(dev); - struct adm1026_data *data = i2c_get_clientdata(client); + struct adm1026_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; int i; long value, alarms, gpio; @@ -495,8 +496,8 @@ static ssize_t set_in_min(struct device *dev, struct device_attribute *attr, { struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); int nr = sensor_attr->index; - struct i2c_client *client = to_i2c_client(dev); - struct adm1026_data *data = i2c_get_clientdata(client); + struct adm1026_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; long val; int err; @@ -523,8 +524,8 @@ static ssize_t set_in_max(struct device *dev, struct device_attribute *attr, { struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); int nr = sensor_attr->index; - struct i2c_client *client = to_i2c_client(dev); - struct adm1026_data *data = i2c_get_clientdata(client); + struct adm1026_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; long val; int err; @@ -582,8 +583,8 @@ static ssize_t show_in16_min(struct device *dev, struct device_attribute *attr, static ssize_t set_in16_min(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { - struct i2c_client *client = to_i2c_client(dev); - struct adm1026_data *data = i2c_get_clientdata(client); + struct adm1026_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; long val; int err; @@ -607,8 +608,8 @@ static ssize_t show_in16_max(struct device *dev, struct device_attribute *attr, static ssize_t set_in16_max(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { - struct i2c_client *client = to_i2c_client(dev); - struct adm1026_data *data = i2c_get_clientdata(client); + struct adm1026_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; long val; int err; @@ -655,8 +656,8 @@ static ssize_t set_fan_min(struct device *dev, struct device_attribute *attr, { struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); int nr = sensor_attr->index; - struct i2c_client *client = to_i2c_client(dev); - struct adm1026_data *data = i2c_get_clientdata(client); + struct adm1026_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; long val; int err; @@ -690,8 +691,8 @@ fan_offset(8); /* Adjust fan_min to account for new fan divisor */ static void fixup_fan_min(struct device *dev, int fan, int old_div) { - struct i2c_client *client = to_i2c_client(dev); - struct adm1026_data *data = i2c_get_clientdata(client); + struct adm1026_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; int new_min; int new_div = data->fan_div[fan]; @@ -719,8 +720,8 @@ static ssize_t set_fan_div(struct device *dev, struct device_attribute *attr, { struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); int nr = sensor_attr->index; - struct i2c_client *client = to_i2c_client(dev); - struct adm1026_data *data = i2c_get_clientdata(client); + struct adm1026_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; long val; int orig_div, new_div; int err; @@ -791,8 +792,8 @@ static ssize_t set_temp_min(struct device *dev, struct device_attribute *attr, { struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); int nr = sensor_attr->index; - struct i2c_client *client = to_i2c_client(dev); - struct adm1026_data *data = i2c_get_clientdata(client); + struct adm1026_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; long val; int err; @@ -820,8 +821,8 @@ static ssize_t set_temp_max(struct device *dev, struct device_attribute *attr, { struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); int nr = sensor_attr->index; - struct i2c_client *client = to_i2c_client(dev); - struct adm1026_data *data = i2c_get_clientdata(client); + struct adm1026_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; long val; int err; @@ -864,8 +865,8 @@ static ssize_t set_temp_offset(struct device *dev, { struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); int nr = sensor_attr->index; - struct i2c_client *client = to_i2c_client(dev); - struct adm1026_data *data = i2c_get_clientdata(client); + struct adm1026_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; long val; int err; @@ -920,8 +921,8 @@ static ssize_t set_temp_auto_point1_temp(struct device *dev, { struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); int nr = sensor_attr->index; - struct i2c_client *client = to_i2c_client(dev); - struct adm1026_data *data = i2c_get_clientdata(client); + struct adm1026_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; long val; int err; @@ -959,8 +960,8 @@ static ssize_t show_temp_crit_enable(struct device *dev, static ssize_t set_temp_crit_enable(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { - struct i2c_client *client = to_i2c_client(dev); - struct adm1026_data *data = i2c_get_clientdata(client); + struct adm1026_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; unsigned long val; int err; @@ -1000,8 +1001,8 @@ static ssize_t set_temp_crit(struct device *dev, struct device_attribute *attr, { struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); int nr = sensor_attr->index; - struct i2c_client *client = to_i2c_client(dev); - struct adm1026_data *data = i2c_get_clientdata(client); + struct adm1026_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; long val; int err; @@ -1035,8 +1036,8 @@ static ssize_t set_analog_out_reg(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { - struct i2c_client *client = to_i2c_client(dev); - struct adm1026_data *data = i2c_get_clientdata(client); + struct adm1026_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; long val; int err; @@ -1145,8 +1146,8 @@ static ssize_t show_alarm_mask(struct device *dev, static ssize_t set_alarm_mask(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { - struct i2c_client *client = to_i2c_client(dev); - struct adm1026_data *data = i2c_get_clientdata(client); + struct adm1026_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; unsigned long mask; long val; int err; @@ -1187,8 +1188,8 @@ static ssize_t show_gpio(struct device *dev, struct device_attribute *attr, static ssize_t set_gpio(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { - struct i2c_client *client = to_i2c_client(dev); - struct adm1026_data *data = i2c_get_clientdata(client); + struct adm1026_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; long gpio; long val; int err; @@ -1220,8 +1221,8 @@ static ssize_t show_gpio_mask(struct device *dev, struct device_attribute *attr, static ssize_t set_gpio_mask(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { - struct i2c_client *client = to_i2c_client(dev); - struct adm1026_data *data = i2c_get_clientdata(client); + struct adm1026_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; long mask; long val; int err; @@ -1254,8 +1255,8 @@ static ssize_t show_pwm_reg(struct device *dev, struct device_attribute *attr, static ssize_t set_pwm_reg(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { - struct i2c_client *client = to_i2c_client(dev); - struct adm1026_data *data = i2c_get_clientdata(client); + struct adm1026_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; if (data->pwm1.enable == 1) { long val; @@ -1284,8 +1285,8 @@ static ssize_t set_auto_pwm_min(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { - struct i2c_client *client = to_i2c_client(dev); - struct adm1026_data *data = i2c_get_clientdata(client); + struct adm1026_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; unsigned long val; int err; @@ -1320,8 +1321,8 @@ static ssize_t show_pwm_enable(struct device *dev, static ssize_t set_pwm_enable(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { - struct i2c_client *client = to_i2c_client(dev); - struct adm1026_data *data = i2c_get_clientdata(client); + struct adm1026_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; int old_enable; unsigned long val; int err; @@ -1800,15 +1801,16 @@ static void adm1026_init_client(struct i2c_client *client) static int adm1026_probe(struct i2c_client *client, const struct i2c_device_id *id) { + struct device *dev = &client->dev; + struct device *hwmon_dev; struct adm1026_data *data; - int err; - data = devm_kzalloc(&client->dev, sizeof(struct adm1026_data), - GFP_KERNEL); + data = devm_kzalloc(dev, sizeof(struct adm1026_data), GFP_KERNEL); if (!data) return -ENOMEM; i2c_set_clientdata(client, data); + data->client = client; mutex_init(&data->update_lock); /* Set the VRM version */ @@ -1817,47 +1819,16 @@ static int adm1026_probe(struct i2c_client *client, /* Initialize the ADM1026 chip */ adm1026_init_client(client); - /* Register sysfs hooks */ - err = sysfs_create_group(&client->dev.kobj, &adm1026_group); - if (err) - return err; - if (data->config1 & CFG1_AIN8_9) - err = sysfs_create_group(&client->dev.kobj, - &adm1026_group_in8_9); - else - err = sysfs_create_group(&client->dev.kobj, - &adm1026_group_temp3); - if (err) - goto exitremove; - - data->hwmon_dev = hwmon_device_register(&client->dev); - if (IS_ERR(data->hwmon_dev)) { - err = PTR_ERR(data->hwmon_dev); - goto exitremove; - } - - return 0; - - /* Error out and cleanup code */ -exitremove: - sysfs_remove_group(&client->dev.kobj, &adm1026_group); + /* sysfs hooks */ + data->groups[0] = &adm1026_group; if (data->config1 & CFG1_AIN8_9) - sysfs_remove_group(&client->dev.kobj, &adm1026_group_in8_9); + data->groups[1] = &adm1026_group_in8_9; else - sysfs_remove_group(&client->dev.kobj, &adm1026_group_temp3); - return err; -} + data->groups[1] = &adm1026_group_temp3; -static int adm1026_remove(struct i2c_client *client) -{ - struct adm1026_data *data = i2c_get_clientdata(client); - hwmon_device_unregister(data->hwmon_dev); - sysfs_remove_group(&client->dev.kobj, &adm1026_group); - if (data->config1 & CFG1_AIN8_9) - sysfs_remove_group(&client->dev.kobj, &adm1026_group_in8_9); - else - sysfs_remove_group(&client->dev.kobj, &adm1026_group_temp3); - return 0; + hwmon_dev = devm_hwmon_device_register_with_groups(dev, client->name, + data, data->groups); + return PTR_ERR_OR_ZERO(hwmon_dev); } static const struct i2c_device_id adm1026_id[] = { @@ -1872,7 +1843,6 @@ static struct i2c_driver adm1026_driver = { .name = "adm1026", }, .probe = adm1026_probe, - .remove = adm1026_remove, .id_table = adm1026_id, .detect = adm1026_detect, .address_list = normal_i2c, -- cgit v1.2.3 From 278ee1c840fcf32f156fd876efcc3780bc580f6c Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Thu, 3 Jul 2014 21:56:33 +0800 Subject: hwmon: (adm1031) Avoid forward declaration Reorder functions to avoid forward declaration. Signed-off-by: Axel Lin Signed-off-by: Guenter Roeck --- drivers/hwmon/adm1031.c | 286 +++++++++++++++++++++++------------------------- 1 file changed, 138 insertions(+), 148 deletions(-) diff --git a/drivers/hwmon/adm1031.c b/drivers/hwmon/adm1031.c index 51c1a5a165ab..9f3cb80a17c7 100644 --- a/drivers/hwmon/adm1031.c +++ b/drivers/hwmon/adm1031.c @@ -105,34 +105,6 @@ struct adm1031_data { s8 temp_crit[3]; }; -static int adm1031_probe(struct i2c_client *client, - const struct i2c_device_id *id); -static int adm1031_detect(struct i2c_client *client, - struct i2c_board_info *info); -static void adm1031_init_client(struct i2c_client *client); -static int adm1031_remove(struct i2c_client *client); -static struct adm1031_data *adm1031_update_device(struct device *dev); - -static const struct i2c_device_id adm1031_id[] = { - { "adm1030", adm1030 }, - { "adm1031", adm1031 }, - { } -}; -MODULE_DEVICE_TABLE(i2c, adm1031_id); - -/* This is the driver that will be inserted */ -static struct i2c_driver adm1031_driver = { - .class = I2C_CLASS_HWMON, - .driver = { - .name = "adm1031", - }, - .probe = adm1031_probe, - .remove = adm1031_remove, - .id_table = adm1031_id, - .detect = adm1031_detect, - .address_list = normal_i2c, -}; - static inline u8 adm1031_read_value(struct i2c_client *client, u8 reg) { return i2c_smbus_read_byte_data(client, reg); @@ -144,6 +116,96 @@ adm1031_write_value(struct i2c_client *client, u8 reg, unsigned int value) return i2c_smbus_write_byte_data(client, reg, value); } +static struct adm1031_data *adm1031_update_device(struct device *dev) +{ + struct i2c_client *client = to_i2c_client(dev); + struct adm1031_data *data = i2c_get_clientdata(client); + unsigned long next_update; + int chan; + + mutex_lock(&data->update_lock); + + next_update = data->last_updated + + msecs_to_jiffies(data->update_interval); + if (time_after(jiffies, next_update) || !data->valid) { + + dev_dbg(&client->dev, "Starting adm1031 update\n"); + for (chan = 0; + chan < ((data->chip_type == adm1031) ? 3 : 2); chan++) { + u8 oldh, newh; + + oldh = + adm1031_read_value(client, ADM1031_REG_TEMP(chan)); + data->ext_temp[chan] = + adm1031_read_value(client, ADM1031_REG_EXT_TEMP); + newh = + adm1031_read_value(client, ADM1031_REG_TEMP(chan)); + if (newh != oldh) { + data->ext_temp[chan] = + adm1031_read_value(client, + ADM1031_REG_EXT_TEMP); +#ifdef DEBUG + oldh = + adm1031_read_value(client, + ADM1031_REG_TEMP(chan)); + + /* oldh is actually newer */ + if (newh != oldh) + dev_warn(&client->dev, + "Remote temperature may be wrong.\n"); +#endif + } + data->temp[chan] = newh; + + data->temp_offset[chan] = + adm1031_read_value(client, + ADM1031_REG_TEMP_OFFSET(chan)); + data->temp_min[chan] = + adm1031_read_value(client, + ADM1031_REG_TEMP_MIN(chan)); + data->temp_max[chan] = + adm1031_read_value(client, + ADM1031_REG_TEMP_MAX(chan)); + data->temp_crit[chan] = + adm1031_read_value(client, + ADM1031_REG_TEMP_CRIT(chan)); + data->auto_temp[chan] = + adm1031_read_value(client, + ADM1031_REG_AUTO_TEMP(chan)); + + } + + data->conf1 = adm1031_read_value(client, ADM1031_REG_CONF1); + data->conf2 = adm1031_read_value(client, ADM1031_REG_CONF2); + + data->alarm = adm1031_read_value(client, ADM1031_REG_STATUS(0)) + | (adm1031_read_value(client, ADM1031_REG_STATUS(1)) << 8); + if (data->chip_type == adm1030) + data->alarm &= 0xc0ff; + + for (chan = 0; chan < (data->chip_type == adm1030 ? 1 : 2); + chan++) { + data->fan_div[chan] = + adm1031_read_value(client, + ADM1031_REG_FAN_DIV(chan)); + data->fan_min[chan] = + adm1031_read_value(client, + ADM1031_REG_FAN_MIN(chan)); + data->fan[chan] = + adm1031_read_value(client, + ADM1031_REG_FAN_SPEED(chan)); + data->pwm[chan] = + (adm1031_read_value(client, + ADM1031_REG_PWM) >> (4 * chan)) & 0x0f; + } + data->last_updated = jiffies; + data->valid = 1; + } + + mutex_unlock(&data->update_lock); + + return data; +} #define TEMP_TO_REG(val) (((val) < 0 ? ((val - 500) / 1000) : \ ((val + 500) / 1000))) @@ -950,6 +1012,37 @@ static int adm1031_detect(struct i2c_client *client, return 0; } +static void adm1031_init_client(struct i2c_client *client) +{ + unsigned int read_val; + unsigned int mask; + int i; + struct adm1031_data *data = i2c_get_clientdata(client); + + mask = (ADM1031_CONF2_PWM1_ENABLE | ADM1031_CONF2_TACH1_ENABLE); + if (data->chip_type == adm1031) { + mask |= (ADM1031_CONF2_PWM2_ENABLE | + ADM1031_CONF2_TACH2_ENABLE); + } + /* Initialize the ADM1031 chip (enables fan speed reading ) */ + read_val = adm1031_read_value(client, ADM1031_REG_CONF2); + if ((read_val | mask) != read_val) + adm1031_write_value(client, ADM1031_REG_CONF2, read_val | mask); + + read_val = adm1031_read_value(client, ADM1031_REG_CONF1); + if ((read_val | ADM1031_CONF1_MONITOR_ENABLE) != read_val) { + adm1031_write_value(client, ADM1031_REG_CONF1, + read_val | ADM1031_CONF1_MONITOR_ENABLE); + } + + /* Read the chip's update rate */ + mask = ADM1031_UPDATE_RATE_MASK; + read_val = adm1031_read_value(client, ADM1031_REG_FAN_FILTER); + i = (read_val & mask) >> ADM1031_UPDATE_RATE_SHIFT; + /* Save it as update interval */ + data->update_interval = update_intervals[i]; +} + static int adm1031_probe(struct i2c_client *client, const struct i2c_device_id *id) { @@ -1008,127 +1101,24 @@ static int adm1031_remove(struct i2c_client *client) return 0; } -static void adm1031_init_client(struct i2c_client *client) -{ - unsigned int read_val; - unsigned int mask; - int i; - struct adm1031_data *data = i2c_get_clientdata(client); - - mask = (ADM1031_CONF2_PWM1_ENABLE | ADM1031_CONF2_TACH1_ENABLE); - if (data->chip_type == adm1031) { - mask |= (ADM1031_CONF2_PWM2_ENABLE | - ADM1031_CONF2_TACH2_ENABLE); - } - /* Initialize the ADM1031 chip (enables fan speed reading ) */ - read_val = adm1031_read_value(client, ADM1031_REG_CONF2); - if ((read_val | mask) != read_val) - adm1031_write_value(client, ADM1031_REG_CONF2, read_val | mask); - - read_val = adm1031_read_value(client, ADM1031_REG_CONF1); - if ((read_val | ADM1031_CONF1_MONITOR_ENABLE) != read_val) { - adm1031_write_value(client, ADM1031_REG_CONF1, - read_val | ADM1031_CONF1_MONITOR_ENABLE); - } - - /* Read the chip's update rate */ - mask = ADM1031_UPDATE_RATE_MASK; - read_val = adm1031_read_value(client, ADM1031_REG_FAN_FILTER); - i = (read_val & mask) >> ADM1031_UPDATE_RATE_SHIFT; - /* Save it as update interval */ - data->update_interval = update_intervals[i]; -} - -static struct adm1031_data *adm1031_update_device(struct device *dev) -{ - struct i2c_client *client = to_i2c_client(dev); - struct adm1031_data *data = i2c_get_clientdata(client); - unsigned long next_update; - int chan; - - mutex_lock(&data->update_lock); - - next_update = data->last_updated - + msecs_to_jiffies(data->update_interval); - if (time_after(jiffies, next_update) || !data->valid) { - - dev_dbg(&client->dev, "Starting adm1031 update\n"); - for (chan = 0; - chan < ((data->chip_type == adm1031) ? 3 : 2); chan++) { - u8 oldh, newh; - - oldh = - adm1031_read_value(client, ADM1031_REG_TEMP(chan)); - data->ext_temp[chan] = - adm1031_read_value(client, ADM1031_REG_EXT_TEMP); - newh = - adm1031_read_value(client, ADM1031_REG_TEMP(chan)); - if (newh != oldh) { - data->ext_temp[chan] = - adm1031_read_value(client, - ADM1031_REG_EXT_TEMP); -#ifdef DEBUG - oldh = - adm1031_read_value(client, - ADM1031_REG_TEMP(chan)); - - /* oldh is actually newer */ - if (newh != oldh) - dev_warn(&client->dev, - "Remote temperature may be wrong.\n"); -#endif - } - data->temp[chan] = newh; - - data->temp_offset[chan] = - adm1031_read_value(client, - ADM1031_REG_TEMP_OFFSET(chan)); - data->temp_min[chan] = - adm1031_read_value(client, - ADM1031_REG_TEMP_MIN(chan)); - data->temp_max[chan] = - adm1031_read_value(client, - ADM1031_REG_TEMP_MAX(chan)); - data->temp_crit[chan] = - adm1031_read_value(client, - ADM1031_REG_TEMP_CRIT(chan)); - data->auto_temp[chan] = - adm1031_read_value(client, - ADM1031_REG_AUTO_TEMP(chan)); - - } - - data->conf1 = adm1031_read_value(client, ADM1031_REG_CONF1); - data->conf2 = adm1031_read_value(client, ADM1031_REG_CONF2); - - data->alarm = adm1031_read_value(client, ADM1031_REG_STATUS(0)) - | (adm1031_read_value(client, ADM1031_REG_STATUS(1)) << 8); - if (data->chip_type == adm1030) - data->alarm &= 0xc0ff; - - for (chan = 0; chan < (data->chip_type == adm1030 ? 1 : 2); - chan++) { - data->fan_div[chan] = - adm1031_read_value(client, - ADM1031_REG_FAN_DIV(chan)); - data->fan_min[chan] = - adm1031_read_value(client, - ADM1031_REG_FAN_MIN(chan)); - data->fan[chan] = - adm1031_read_value(client, - ADM1031_REG_FAN_SPEED(chan)); - data->pwm[chan] = - (adm1031_read_value(client, - ADM1031_REG_PWM) >> (4 * chan)) & 0x0f; - } - data->last_updated = jiffies; - data->valid = 1; - } - - mutex_unlock(&data->update_lock); +static const struct i2c_device_id adm1031_id[] = { + { "adm1030", adm1030 }, + { "adm1031", adm1031 }, + { } +}; +MODULE_DEVICE_TABLE(i2c, adm1031_id); - return data; -} +static struct i2c_driver adm1031_driver = { + .class = I2C_CLASS_HWMON, + .driver = { + .name = "adm1031", + }, + .probe = adm1031_probe, + .remove = adm1031_remove, + .id_table = adm1031_id, + .detect = adm1031_detect, + .address_list = normal_i2c, +}; module_i2c_driver(adm1031_driver); -- cgit v1.2.3 From b060f3c4ac99b050b990b316637f7fd9898b9fd7 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Thu, 3 Jul 2014 21:57:44 +0800 Subject: hwmon: (adm1031) Convert to devm_hwmon_device_register_with_groups Use ATTRIBUTE_GROUPS macro and devm_hwmon_device_register_with_groups() to simplify the code a bit. Signed-off-by: Axel Lin Signed-off-by: Guenter Roeck --- drivers/hwmon/adm1031.c | 101 ++++++++++++++++++------------------------------ 1 file changed, 38 insertions(+), 63 deletions(-) diff --git a/drivers/hwmon/adm1031.c b/drivers/hwmon/adm1031.c index 9f3cb80a17c7..a5818980dad7 100644 --- a/drivers/hwmon/adm1031.c +++ b/drivers/hwmon/adm1031.c @@ -74,7 +74,8 @@ typedef u8 auto_chan_table_t[8][2]; /* Each client has this additional data */ struct adm1031_data { - struct device *hwmon_dev; + struct i2c_client *client; + const struct attribute_group *groups[3]; struct mutex update_lock; int chip_type; char valid; /* !=0 if following fields are valid */ @@ -118,8 +119,8 @@ adm1031_write_value(struct i2c_client *client, u8 reg, unsigned int value) static struct adm1031_data *adm1031_update_device(struct device *dev) { - struct i2c_client *client = to_i2c_client(dev); - struct adm1031_data *data = i2c_get_clientdata(client); + struct adm1031_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; unsigned long next_update; int chan; @@ -342,8 +343,8 @@ static ssize_t set_fan_auto_channel(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { - struct i2c_client *client = to_i2c_client(dev); - struct adm1031_data *data = i2c_get_clientdata(client); + struct adm1031_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; int nr = to_sensor_dev_attr(attr)->index; long val; u8 reg; @@ -417,8 +418,8 @@ static ssize_t set_auto_temp_min(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { - struct i2c_client *client = to_i2c_client(dev); - struct adm1031_data *data = i2c_get_clientdata(client); + struct adm1031_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; int nr = to_sensor_dev_attr(attr)->index; long val; int ret; @@ -447,8 +448,8 @@ static ssize_t set_auto_temp_max(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { - struct i2c_client *client = to_i2c_client(dev); - struct adm1031_data *data = i2c_get_clientdata(client); + struct adm1031_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; int nr = to_sensor_dev_attr(attr)->index; long val; int ret; @@ -490,8 +491,8 @@ static ssize_t show_pwm(struct device *dev, static ssize_t set_pwm(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { - struct i2c_client *client = to_i2c_client(dev); - struct adm1031_data *data = i2c_get_clientdata(client); + struct adm1031_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; int nr = to_sensor_dev_attr(attr)->index; long val; int ret, reg; @@ -603,8 +604,8 @@ static ssize_t show_fan_min(struct device *dev, static ssize_t set_fan_min(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { - struct i2c_client *client = to_i2c_client(dev); - struct adm1031_data *data = i2c_get_clientdata(client); + struct adm1031_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; int nr = to_sensor_dev_attr(attr)->index; long val; int ret; @@ -627,8 +628,8 @@ static ssize_t set_fan_min(struct device *dev, struct device_attribute *attr, static ssize_t set_fan_div(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { - struct i2c_client *client = to_i2c_client(dev); - struct adm1031_data *data = i2c_get_clientdata(client); + struct adm1031_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; int nr = to_sensor_dev_attr(attr)->index; long val; u8 tmp; @@ -729,8 +730,8 @@ static ssize_t set_temp_offset(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { - struct i2c_client *client = to_i2c_client(dev); - struct adm1031_data *data = i2c_get_clientdata(client); + struct adm1031_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; int nr = to_sensor_dev_attr(attr)->index; long val; int ret; @@ -750,8 +751,8 @@ static ssize_t set_temp_offset(struct device *dev, static ssize_t set_temp_min(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { - struct i2c_client *client = to_i2c_client(dev); - struct adm1031_data *data = i2c_get_clientdata(client); + struct adm1031_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; int nr = to_sensor_dev_attr(attr)->index; long val; int ret; @@ -771,8 +772,8 @@ static ssize_t set_temp_min(struct device *dev, struct device_attribute *attr, static ssize_t set_temp_max(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { - struct i2c_client *client = to_i2c_client(dev); - struct adm1031_data *data = i2c_get_clientdata(client); + struct adm1031_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; int nr = to_sensor_dev_attr(attr)->index; long val; int ret; @@ -792,8 +793,8 @@ static ssize_t set_temp_max(struct device *dev, struct device_attribute *attr, static ssize_t set_temp_crit(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { - struct i2c_client *client = to_i2c_client(dev); - struct adm1031_data *data = i2c_get_clientdata(client); + struct adm1031_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; int nr = to_sensor_dev_attr(attr)->index; long val; int ret; @@ -869,8 +870,7 @@ static const unsigned int update_intervals[] = { static ssize_t show_update_interval(struct device *dev, struct device_attribute *attr, char *buf) { - struct i2c_client *client = to_i2c_client(dev); - struct adm1031_data *data = i2c_get_clientdata(client); + struct adm1031_data *data = dev_get_drvdata(dev); return sprintf(buf, "%u\n", data->update_interval); } @@ -879,8 +879,8 @@ static ssize_t set_update_interval(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { - struct i2c_client *client = to_i2c_client(dev); - struct adm1031_data *data = i2c_get_clientdata(client); + struct adm1031_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; unsigned long val; int i, err; u8 reg; @@ -1046,15 +1046,16 @@ static void adm1031_init_client(struct i2c_client *client) static int adm1031_probe(struct i2c_client *client, const struct i2c_device_id *id) { + struct device *dev = &client->dev; + struct device *hwmon_dev; struct adm1031_data *data; - int err; - data = devm_kzalloc(&client->dev, sizeof(struct adm1031_data), - GFP_KERNEL); + data = devm_kzalloc(dev, sizeof(struct adm1031_data), GFP_KERNEL); if (!data) return -ENOMEM; i2c_set_clientdata(client, data); + data->client = client; data->chip_type = id->driver_data; mutex_init(&data->update_lock); @@ -1066,39 +1067,14 @@ static int adm1031_probe(struct i2c_client *client, /* Initialize the ADM1031 chip */ adm1031_init_client(client); - /* Register sysfs hooks */ - err = sysfs_create_group(&client->dev.kobj, &adm1031_group); - if (err) - return err; - - if (data->chip_type == adm1031) { - err = sysfs_create_group(&client->dev.kobj, &adm1031_group_opt); - if (err) - goto exit_remove; - } - - data->hwmon_dev = hwmon_device_register(&client->dev); - if (IS_ERR(data->hwmon_dev)) { - err = PTR_ERR(data->hwmon_dev); - goto exit_remove; - } + /* sysfs hooks */ + data->groups[0] = &adm1031_group; + if (data->chip_type == adm1031) + data->groups[1] = &adm1031_group_opt; - return 0; - -exit_remove: - sysfs_remove_group(&client->dev.kobj, &adm1031_group); - sysfs_remove_group(&client->dev.kobj, &adm1031_group_opt); - return err; -} - -static int adm1031_remove(struct i2c_client *client) -{ - struct adm1031_data *data = i2c_get_clientdata(client); - - hwmon_device_unregister(data->hwmon_dev); - sysfs_remove_group(&client->dev.kobj, &adm1031_group); - sysfs_remove_group(&client->dev.kobj, &adm1031_group_opt); - return 0; + hwmon_dev = devm_hwmon_device_register_with_groups(dev, client->name, + data, data->groups); + return PTR_ERR_OR_ZERO(hwmon_dev); } static const struct i2c_device_id adm1031_id[] = { @@ -1114,7 +1090,6 @@ static struct i2c_driver adm1031_driver = { .name = "adm1031", }, .probe = adm1031_probe, - .remove = adm1031_remove, .id_table = adm1031_id, .detect = adm1031_detect, .address_list = normal_i2c, -- cgit v1.2.3 From 4341fc3f32b278d136179772338ccaa31f222c99 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Thu, 3 Jul 2014 21:59:49 +0800 Subject: hwmon: (adm9240) Avoid forward declaration Reorder functions to avoid forward declaration. Signed-off-by: Axel Lin Signed-off-by: Guenter Roeck --- drivers/hwmon/adm9240.c | 315 +++++++++++++++++++++++------------------------- 1 file changed, 153 insertions(+), 162 deletions(-) diff --git a/drivers/hwmon/adm9240.c b/drivers/hwmon/adm9240.c index 086d02a9ecdc..8235ae4cbeb5 100644 --- a/drivers/hwmon/adm9240.c +++ b/drivers/hwmon/adm9240.c @@ -130,35 +130,6 @@ static inline unsigned int AOUT_FROM_REG(u8 reg) return SCALE(reg, 1250, 255); } -static int adm9240_probe(struct i2c_client *client, - const struct i2c_device_id *id); -static int adm9240_detect(struct i2c_client *client, - struct i2c_board_info *info); -static void adm9240_init_client(struct i2c_client *client); -static int adm9240_remove(struct i2c_client *client); -static struct adm9240_data *adm9240_update_device(struct device *dev); - -/* driver data */ -static const struct i2c_device_id adm9240_id[] = { - { "adm9240", adm9240 }, - { "ds1780", ds1780 }, - { "lm81", lm81 }, - { } -}; -MODULE_DEVICE_TABLE(i2c, adm9240_id); - -static struct i2c_driver adm9240_driver = { - .class = I2C_CLASS_HWMON, - .driver = { - .name = "adm9240", - }, - .probe = adm9240_probe, - .remove = adm9240_remove, - .id_table = adm9240_id, - .detect = adm9240_detect, - .address_list = normal_i2c, -}; - /* per client data */ struct adm9240_data { struct device *hwmon_dev; @@ -181,6 +152,110 @@ struct adm9240_data { u8 vrm; /* -- vrm set on startup, no accessor */ }; +/* write new fan div, callers must hold data->update_lock */ +static void adm9240_write_fan_div(struct i2c_client *client, int nr, + u8 fan_div) +{ + u8 reg, old, shift = (nr + 2) * 2; + + reg = i2c_smbus_read_byte_data(client, ADM9240_REG_VID_FAN_DIV); + old = (reg >> shift) & 3; + reg &= ~(3 << shift); + reg |= (fan_div << shift); + i2c_smbus_write_byte_data(client, ADM9240_REG_VID_FAN_DIV, reg); + dev_dbg(&client->dev, + "fan%d clock divider changed from %u to %u\n", + nr + 1, 1 << old, 1 << fan_div); +} + +static struct adm9240_data *adm9240_update_device(struct device *dev) +{ + struct i2c_client *client = to_i2c_client(dev); + struct adm9240_data *data = i2c_get_clientdata(client); + int i; + + mutex_lock(&data->update_lock); + + /* minimum measurement cycle: 1.75 seconds */ + if (time_after(jiffies, data->last_updated_measure + (HZ * 7 / 4)) + || !data->valid) { + + for (i = 0; i < 6; i++) { /* read voltages */ + data->in[i] = i2c_smbus_read_byte_data(client, + ADM9240_REG_IN(i)); + } + data->alarms = i2c_smbus_read_byte_data(client, + ADM9240_REG_INT(0)) | + i2c_smbus_read_byte_data(client, + ADM9240_REG_INT(1)) << 8; + + /* + * read temperature: assume temperature changes less than + * 0.5'C per two measurement cycles thus ignore possible + * but unlikely aliasing error on lsb reading. --Grant + */ + data->temp = ((i2c_smbus_read_byte_data(client, + ADM9240_REG_TEMP) << 8) | + i2c_smbus_read_byte_data(client, + ADM9240_REG_TEMP_CONF)) / 128; + + for (i = 0; i < 2; i++) { /* read fans */ + data->fan[i] = i2c_smbus_read_byte_data(client, + ADM9240_REG_FAN(i)); + + /* adjust fan clock divider on overflow */ + if (data->valid && data->fan[i] == 255 && + data->fan_div[i] < 3) { + + adm9240_write_fan_div(client, i, + ++data->fan_div[i]); + + /* adjust fan_min if active, but not to 0 */ + if (data->fan_min[i] < 255 && + data->fan_min[i] >= 2) + data->fan_min[i] /= 2; + } + } + data->last_updated_measure = jiffies; + } + + /* minimum config reading cycle: 300 seconds */ + if (time_after(jiffies, data->last_updated_config + (HZ * 300)) + || !data->valid) { + + for (i = 0; i < 6; i++) { + data->in_min[i] = i2c_smbus_read_byte_data(client, + ADM9240_REG_IN_MIN(i)); + data->in_max[i] = i2c_smbus_read_byte_data(client, + ADM9240_REG_IN_MAX(i)); + } + for (i = 0; i < 2; i++) { + data->fan_min[i] = i2c_smbus_read_byte_data(client, + ADM9240_REG_FAN_MIN(i)); + } + data->temp_max[0] = i2c_smbus_read_byte_data(client, + ADM9240_REG_TEMP_MAX(0)); + data->temp_max[1] = i2c_smbus_read_byte_data(client, + ADM9240_REG_TEMP_MAX(1)); + + /* read fan divs and 5-bit VID */ + i = i2c_smbus_read_byte_data(client, ADM9240_REG_VID_FAN_DIV); + data->fan_div[0] = (i >> 4) & 3; + data->fan_div[1] = (i >> 6) & 3; + data->vid = i & 0x0f; + data->vid |= (i2c_smbus_read_byte_data(client, + ADM9240_REG_VID4) & 1) << 4; + /* read analog out */ + data->aout = i2c_smbus_read_byte_data(client, + ADM9240_REG_ANALOG_OUT); + + data->last_updated_config = jiffies; + data->valid = 1; + } + mutex_unlock(&data->update_lock); + return data; +} + /*** sysfs accessors ***/ /* temperature */ @@ -340,22 +415,6 @@ static ssize_t show_fan_div(struct device *dev, return sprintf(buf, "%d\n", 1 << data->fan_div[attr->index]); } -/* write new fan div, callers must hold data->update_lock */ -static void adm9240_write_fan_div(struct i2c_client *client, int nr, - u8 fan_div) -{ - u8 reg, old, shift = (nr + 2) * 2; - - reg = i2c_smbus_read_byte_data(client, ADM9240_REG_VID_FAN_DIV); - old = (reg >> shift) & 3; - reg &= ~(3 << shift); - reg |= (fan_div << shift); - i2c_smbus_write_byte_data(client, ADM9240_REG_VID_FAN_DIV, reg); - dev_dbg(&client->dev, - "fan%d clock divider changed from %u to %u\n", - nr + 1, 1 << old, 1 << fan_div); -} - /* * set fan speed low limit: * @@ -620,49 +679,6 @@ static int adm9240_detect(struct i2c_client *new_client, return 0; } -static int adm9240_probe(struct i2c_client *new_client, - const struct i2c_device_id *id) -{ - struct adm9240_data *data; - int err; - - data = devm_kzalloc(&new_client->dev, sizeof(*data), GFP_KERNEL); - if (!data) - return -ENOMEM; - - i2c_set_clientdata(new_client, data); - mutex_init(&data->update_lock); - - adm9240_init_client(new_client); - - /* populate sysfs filesystem */ - err = sysfs_create_group(&new_client->dev.kobj, &adm9240_group); - if (err) - return err; - - data->hwmon_dev = hwmon_device_register(&new_client->dev); - if (IS_ERR(data->hwmon_dev)) { - err = PTR_ERR(data->hwmon_dev); - goto exit_remove; - } - - return 0; - -exit_remove: - sysfs_remove_group(&new_client->dev.kobj, &adm9240_group); - return err; -} - -static int adm9240_remove(struct i2c_client *client) -{ - struct adm9240_data *data = i2c_get_clientdata(client); - - hwmon_device_unregister(data->hwmon_dev); - sysfs_remove_group(&client->dev.kobj, &adm9240_group); - - return 0; -} - static void adm9240_init_client(struct i2c_client *client) { struct adm9240_data *data = i2c_get_clientdata(client); @@ -705,93 +721,68 @@ static void adm9240_init_client(struct i2c_client *client) } } -static struct adm9240_data *adm9240_update_device(struct device *dev) +static int adm9240_probe(struct i2c_client *new_client, + const struct i2c_device_id *id) { - struct i2c_client *client = to_i2c_client(dev); - struct adm9240_data *data = i2c_get_clientdata(client); - int i; + struct adm9240_data *data; + int err; - mutex_lock(&data->update_lock); + data = devm_kzalloc(&new_client->dev, sizeof(*data), GFP_KERNEL); + if (!data) + return -ENOMEM; - /* minimum measurement cycle: 1.75 seconds */ - if (time_after(jiffies, data->last_updated_measure + (HZ * 7 / 4)) - || !data->valid) { + i2c_set_clientdata(new_client, data); + mutex_init(&data->update_lock); - for (i = 0; i < 6; i++) { /* read voltages */ - data->in[i] = i2c_smbus_read_byte_data(client, - ADM9240_REG_IN(i)); - } - data->alarms = i2c_smbus_read_byte_data(client, - ADM9240_REG_INT(0)) | - i2c_smbus_read_byte_data(client, - ADM9240_REG_INT(1)) << 8; + adm9240_init_client(new_client); - /* - * read temperature: assume temperature changes less than - * 0.5'C per two measurement cycles thus ignore possible - * but unlikely aliasing error on lsb reading. --Grant - */ - data->temp = ((i2c_smbus_read_byte_data(client, - ADM9240_REG_TEMP) << 8) | - i2c_smbus_read_byte_data(client, - ADM9240_REG_TEMP_CONF)) / 128; + /* populate sysfs filesystem */ + err = sysfs_create_group(&new_client->dev.kobj, &adm9240_group); + if (err) + return err; - for (i = 0; i < 2; i++) { /* read fans */ - data->fan[i] = i2c_smbus_read_byte_data(client, - ADM9240_REG_FAN(i)); + data->hwmon_dev = hwmon_device_register(&new_client->dev); + if (IS_ERR(data->hwmon_dev)) { + err = PTR_ERR(data->hwmon_dev); + goto exit_remove; + } - /* adjust fan clock divider on overflow */ - if (data->valid && data->fan[i] == 255 && - data->fan_div[i] < 3) { + return 0; - adm9240_write_fan_div(client, i, - ++data->fan_div[i]); +exit_remove: + sysfs_remove_group(&new_client->dev.kobj, &adm9240_group); + return err; +} - /* adjust fan_min if active, but not to 0 */ - if (data->fan_min[i] < 255 && - data->fan_min[i] >= 2) - data->fan_min[i] /= 2; - } - } - data->last_updated_measure = jiffies; - } +static int adm9240_remove(struct i2c_client *client) +{ + struct adm9240_data *data = i2c_get_clientdata(client); - /* minimum config reading cycle: 300 seconds */ - if (time_after(jiffies, data->last_updated_config + (HZ * 300)) - || !data->valid) { + hwmon_device_unregister(data->hwmon_dev); + sysfs_remove_group(&client->dev.kobj, &adm9240_group); - for (i = 0; i < 6; i++) { - data->in_min[i] = i2c_smbus_read_byte_data(client, - ADM9240_REG_IN_MIN(i)); - data->in_max[i] = i2c_smbus_read_byte_data(client, - ADM9240_REG_IN_MAX(i)); - } - for (i = 0; i < 2; i++) { - data->fan_min[i] = i2c_smbus_read_byte_data(client, - ADM9240_REG_FAN_MIN(i)); - } - data->temp_max[0] = i2c_smbus_read_byte_data(client, - ADM9240_REG_TEMP_MAX(0)); - data->temp_max[1] = i2c_smbus_read_byte_data(client, - ADM9240_REG_TEMP_MAX(1)); + return 0; +} - /* read fan divs and 5-bit VID */ - i = i2c_smbus_read_byte_data(client, ADM9240_REG_VID_FAN_DIV); - data->fan_div[0] = (i >> 4) & 3; - data->fan_div[1] = (i >> 6) & 3; - data->vid = i & 0x0f; - data->vid |= (i2c_smbus_read_byte_data(client, - ADM9240_REG_VID4) & 1) << 4; - /* read analog out */ - data->aout = i2c_smbus_read_byte_data(client, - ADM9240_REG_ANALOG_OUT); +static const struct i2c_device_id adm9240_id[] = { + { "adm9240", adm9240 }, + { "ds1780", ds1780 }, + { "lm81", lm81 }, + { } +}; +MODULE_DEVICE_TABLE(i2c, adm9240_id); - data->last_updated_config = jiffies; - data->valid = 1; - } - mutex_unlock(&data->update_lock); - return data; -} +static struct i2c_driver adm9240_driver = { + .class = I2C_CLASS_HWMON, + .driver = { + .name = "adm9240", + }, + .probe = adm9240_probe, + .remove = adm9240_remove, + .id_table = adm9240_id, + .detect = adm9240_detect, + .address_list = normal_i2c, +}; module_i2c_driver(adm9240_driver); -- cgit v1.2.3 From 781126a0c8debc713a07da16c790253dadb33184 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Wed, 2 Jul 2014 20:26:32 +0800 Subject: hwmon: (smm665) Convert to devm_hwmon_device_register_with_groups Use ATTRIBUTE_GROUPS macro and devm_hwmon_device_register_with_groups() to simplify the code a bit. Signed-off-by: Axel Lin Signed-off-by: Guenter Roeck --- drivers/hwmon/smm665.c | 44 ++++++++++++++++---------------------------- 1 file changed, 16 insertions(+), 28 deletions(-) diff --git a/drivers/hwmon/smm665.c b/drivers/hwmon/smm665.c index 4ef5802df6d8..627c9c3a8255 100644 --- a/drivers/hwmon/smm665.c +++ b/drivers/hwmon/smm665.c @@ -140,7 +140,7 @@ enum chips { smm465, smm665, smm665c, smm764, smm766 }; struct smm665_data { enum chips type; int conversion_time; /* ADC conversion time */ - struct device *hwmon_dev; + struct i2c_client *client; struct mutex update_lock; bool valid; unsigned long last_updated; /* in jiffies */ @@ -239,8 +239,8 @@ static int smm665_read_adc(struct smm665_data *data, int adc) static struct smm665_data *smm665_update_device(struct device *dev) { - struct i2c_client *client = to_i2c_client(dev); - struct smm665_data *data = i2c_get_clientdata(client); + struct smm665_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; struct smm665_data *ret = data; mutex_lock(&data->update_lock); @@ -315,32 +315,28 @@ static int smm665_convert(u16 adcval, int index) static int smm665_get_min(struct device *dev, int index) { - struct i2c_client *client = to_i2c_client(dev); - struct smm665_data *data = i2c_get_clientdata(client); + struct smm665_data *data = dev_get_drvdata(dev); return data->alarm_min_limit[index]; } static int smm665_get_max(struct device *dev, int index) { - struct i2c_client *client = to_i2c_client(dev); - struct smm665_data *data = i2c_get_clientdata(client); + struct smm665_data *data = dev_get_drvdata(dev); return data->alarm_max_limit[index]; } static int smm665_get_lcrit(struct device *dev, int index) { - struct i2c_client *client = to_i2c_client(dev); - struct smm665_data *data = i2c_get_clientdata(client); + struct smm665_data *data = dev_get_drvdata(dev); return data->critical_min_limit[index]; } static int smm665_get_crit(struct device *dev, int index) { - struct i2c_client *client = to_i2c_client(dev); - struct smm665_data *data = i2c_get_clientdata(client); + struct smm665_data *data = dev_get_drvdata(dev); return data->critical_max_limit[index]; } @@ -486,7 +482,7 @@ SMM665_ATTR(temp1, crit_alarm, SMM665_FAULT_TEMP); * Finally, construct an array of pointers to members of the above objects, * as required for sysfs_create_group() */ -static struct attribute *smm665_attributes[] = { +static struct attribute *smm665_attrs[] = { &sensor_dev_attr_in1_input.dev_attr.attr, &sensor_dev_attr_in1_min.dev_attr.attr, &sensor_dev_attr_in1_max.dev_attr.attr, @@ -567,15 +563,14 @@ static struct attribute *smm665_attributes[] = { NULL, }; -static const struct attribute_group smm665_group = { - .attrs = smm665_attributes, -}; +ATTRIBUTE_GROUPS(smm665); static int smm665_probe(struct i2c_client *client, const struct i2c_device_id *id) { struct i2c_adapter *adapter = client->adapter; struct smm665_data *data; + struct device *hwmon_dev; int i, ret; if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA @@ -592,6 +587,7 @@ static int smm665_probe(struct i2c_client *client, i2c_set_clientdata(client, data); mutex_init(&data->update_lock); + data->client = client; data->type = id->driver_data; data->cmdreg = i2c_new_dummy(adapter, (client->addr & ~SMM665_REGMASK) | SMM665_CMDREG_BASE); @@ -662,21 +658,16 @@ static int smm665_probe(struct i2c_client *client, data->alarm_max_limit[i] = smm665_convert(val, i); } - /* Register sysfs hooks */ - ret = sysfs_create_group(&client->dev.kobj, &smm665_group); - if (ret) + hwmon_dev = devm_hwmon_device_register_with_groups(&client->dev, + client->name, data, + smm665_groups); + if (IS_ERR(hwmon_dev)) { + ret = PTR_ERR(hwmon_dev); goto out_unregister; - - data->hwmon_dev = hwmon_device_register(&client->dev); - if (IS_ERR(data->hwmon_dev)) { - ret = PTR_ERR(data->hwmon_dev); - goto out_remove_group; } return 0; -out_remove_group: - sysfs_remove_group(&client->dev.kobj, &smm665_group); out_unregister: i2c_unregister_device(data->cmdreg); return ret; @@ -687,9 +678,6 @@ static int smm665_remove(struct i2c_client *client) struct smm665_data *data = i2c_get_clientdata(client); i2c_unregister_device(data->cmdreg); - hwmon_device_unregister(data->hwmon_dev); - sysfs_remove_group(&client->dev.kobj, &smm665_group); - return 0; } -- cgit v1.2.3 From 8280325288176694a3c22e2f10fdab6d8de5bd99 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Sat, 5 Jul 2014 11:22:44 +0800 Subject: hwmon: (lineage-pem) Convert to devm_hwmon_device_register_with_groups Use ATTRIBUTE_GROUPS macro and devm_hwmon_device_register_with_groups() to simplify the code a bit. Signed-off-by: Axel Lin Signed-off-by: Guenter Roeck --- drivers/hwmon/lineage-pem.c | 66 +++++++++++++-------------------------------- 1 file changed, 19 insertions(+), 47 deletions(-) diff --git a/drivers/hwmon/lineage-pem.c b/drivers/hwmon/lineage-pem.c index ebbb9f4f27a3..84d791bdb62d 100644 --- a/drivers/hwmon/lineage-pem.c +++ b/drivers/hwmon/lineage-pem.c @@ -125,7 +125,8 @@ #define FAN_SPEED_LEN 5 struct pem_data { - struct device *hwmon_dev; + struct i2c_client *client; + const struct attribute_group *groups[4]; struct mutex update_lock; bool valid; @@ -160,8 +161,8 @@ abort: static struct pem_data *pem_update_device(struct device *dev) { - struct i2c_client *client = to_i2c_client(dev); - struct pem_data *data = i2c_get_clientdata(client); + struct pem_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; struct pem_data *ret = data; mutex_lock(&data->update_lock); @@ -444,18 +445,20 @@ static int pem_probe(struct i2c_client *client, const struct i2c_device_id *id) { struct i2c_adapter *adapter = client->adapter; + struct device *dev = &client->dev; + struct device *hwmon_dev; struct pem_data *data; - int ret; + int ret, idx = 0; if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BLOCK_DATA | I2C_FUNC_SMBUS_WRITE_BYTE)) return -ENODEV; - data = devm_kzalloc(&client->dev, sizeof(*data), GFP_KERNEL); + data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL); if (!data) return -ENOMEM; - i2c_set_clientdata(client, data); + data->client = client; mutex_init(&data->update_lock); /* @@ -471,14 +474,12 @@ static int pem_probe(struct i2c_client *client, if (ret < 0) return ret; - dev_info(&client->dev, "Firmware revision %d.%d.%d\n", + dev_info(dev, "Firmware revision %d.%d.%d\n", data->firmware_rev[0], data->firmware_rev[1], data->firmware_rev[2]); - /* Register sysfs hooks */ - ret = sysfs_create_group(&client->dev.kobj, &pem_group); - if (ret) - return ret; + /* sysfs hooks */ + data->groups[idx++] = &pem_group; /* * Check if input readings are supported. @@ -501,12 +502,9 @@ static int pem_probe(struct i2c_client *client, data->input_string[2] || data->input_string[3])) data->input_length = sizeof(data->input_string); } - ret = 0; - if (data->input_length) { - ret = sysfs_create_group(&client->dev.kobj, &pem_input_group); - if (ret) - goto out_remove_groups; - } + + if (data->input_length) + data->groups[idx++] = &pem_input_group; /* * Check if fan speed readings are supported. @@ -520,37 +518,12 @@ static int pem_probe(struct i2c_client *client, if (!ret && (data->fan_speed[0] || data->fan_speed[1] || data->fan_speed[2] || data->fan_speed[3])) { data->fans_supported = true; - ret = sysfs_create_group(&client->dev.kobj, &pem_fan_group); - if (ret) - goto out_remove_groups; - } - - data->hwmon_dev = hwmon_device_register(&client->dev); - if (IS_ERR(data->hwmon_dev)) { - ret = PTR_ERR(data->hwmon_dev); - goto out_remove_groups; + data->groups[idx++] = &pem_fan_group; } - return 0; - -out_remove_groups: - sysfs_remove_group(&client->dev.kobj, &pem_input_group); - sysfs_remove_group(&client->dev.kobj, &pem_fan_group); - sysfs_remove_group(&client->dev.kobj, &pem_group); - return ret; -} - -static int pem_remove(struct i2c_client *client) -{ - struct pem_data *data = i2c_get_clientdata(client); - - hwmon_device_unregister(data->hwmon_dev); - - sysfs_remove_group(&client->dev.kobj, &pem_input_group); - sysfs_remove_group(&client->dev.kobj, &pem_fan_group); - sysfs_remove_group(&client->dev.kobj, &pem_group); - - return 0; + hwmon_dev = devm_hwmon_device_register_with_groups(dev, client->name, + data, data->groups); + return PTR_ERR_OR_ZERO(hwmon_dev); } static const struct i2c_device_id pem_id[] = { @@ -564,7 +537,6 @@ static struct i2c_driver pem_driver = { .name = "lineage_pem", }, .probe = pem_probe, - .remove = pem_remove, .id_table = pem_id, }; -- cgit v1.2.3 From 715f69bef14e4139ff1e19bbc69e0cd07de0f4e9 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Thu, 3 Jul 2014 22:01:48 +0800 Subject: hwmon: (adm9240) Convert to devm_hwmon_device_register_with_groups Use ATTRIBUTE_GROUPS macro and devm_hwmon_device_register_with_groups() to simplify the code a bit. Signed-off-by: Axel Lin Signed-off-by: Guenter Roeck --- drivers/hwmon/adm9240.c | 74 +++++++++++++++++-------------------------------- 1 file changed, 26 insertions(+), 48 deletions(-) diff --git a/drivers/hwmon/adm9240.c b/drivers/hwmon/adm9240.c index 8235ae4cbeb5..98114cef1e43 100644 --- a/drivers/hwmon/adm9240.c +++ b/drivers/hwmon/adm9240.c @@ -132,7 +132,7 @@ static inline unsigned int AOUT_FROM_REG(u8 reg) /* per client data */ struct adm9240_data { - struct device *hwmon_dev; + struct i2c_client *client; struct mutex update_lock; char valid; unsigned long last_updated_measure; @@ -170,8 +170,8 @@ static void adm9240_write_fan_div(struct i2c_client *client, int nr, static struct adm9240_data *adm9240_update_device(struct device *dev) { - struct i2c_client *client = to_i2c_client(dev); - struct adm9240_data *data = i2c_get_clientdata(client); + struct adm9240_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; int i; mutex_lock(&data->update_lock); @@ -278,8 +278,8 @@ static ssize_t set_max(struct device *dev, struct device_attribute *devattr, const char *buf, size_t count) { struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); - struct i2c_client *client = to_i2c_client(dev); - struct adm9240_data *data = i2c_get_clientdata(client); + struct adm9240_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; long val; int err; @@ -334,8 +334,8 @@ static ssize_t set_in_min(struct device *dev, const char *buf, size_t count) { struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); - struct i2c_client *client = to_i2c_client(dev); - struct adm9240_data *data = i2c_get_clientdata(client); + struct adm9240_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; unsigned long val; int err; @@ -356,8 +356,8 @@ static ssize_t set_in_max(struct device *dev, const char *buf, size_t count) { struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); - struct i2c_client *client = to_i2c_client(dev); - struct adm9240_data *data = i2c_get_clientdata(client); + struct adm9240_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; unsigned long val; int err; @@ -431,8 +431,8 @@ static ssize_t set_fan_min(struct device *dev, const char *buf, size_t count) { struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); - struct i2c_client *client = to_i2c_client(dev); - struct adm9240_data *data = i2c_get_clientdata(client); + struct adm9240_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; int nr = attr->index; u8 new_div; unsigned long val; @@ -544,8 +544,8 @@ static ssize_t set_aout(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { - struct i2c_client *client = to_i2c_client(dev); - struct adm9240_data *data = i2c_get_clientdata(client); + struct adm9240_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; long val; int err; @@ -565,8 +565,8 @@ static ssize_t chassis_clear(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { - struct i2c_client *client = to_i2c_client(dev); - struct adm9240_data *data = i2c_get_clientdata(client); + struct adm9240_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; unsigned long val; if (kstrtoul(buf, 10, &val) || val != 0) @@ -583,7 +583,7 @@ static ssize_t chassis_clear(struct device *dev, static SENSOR_DEVICE_ATTR(intrusion0_alarm, S_IRUGO | S_IWUSR, show_alarm, chassis_clear, 12); -static struct attribute *adm9240_attributes[] = { +static struct attribute *adm9240_attrs[] = { &sensor_dev_attr_in0_input.dev_attr.attr, &sensor_dev_attr_in0_min.dev_attr.attr, &sensor_dev_attr_in0_max.dev_attr.attr, @@ -627,9 +627,7 @@ static struct attribute *adm9240_attributes[] = { NULL }; -static const struct attribute_group adm9240_group = { - .attrs = adm9240_attributes, -}; +ATTRIBUTE_GROUPS(adm9240); /*** sensor chip detect and driver install ***/ @@ -724,44 +722,25 @@ static void adm9240_init_client(struct i2c_client *client) static int adm9240_probe(struct i2c_client *new_client, const struct i2c_device_id *id) { + struct device *dev = &new_client->dev; + struct device *hwmon_dev; struct adm9240_data *data; - int err; - data = devm_kzalloc(&new_client->dev, sizeof(*data), GFP_KERNEL); + data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL); if (!data) return -ENOMEM; i2c_set_clientdata(new_client, data); + data->client = new_client; mutex_init(&data->update_lock); adm9240_init_client(new_client); - /* populate sysfs filesystem */ - err = sysfs_create_group(&new_client->dev.kobj, &adm9240_group); - if (err) - return err; - - data->hwmon_dev = hwmon_device_register(&new_client->dev); - if (IS_ERR(data->hwmon_dev)) { - err = PTR_ERR(data->hwmon_dev); - goto exit_remove; - } - - return 0; - -exit_remove: - sysfs_remove_group(&new_client->dev.kobj, &adm9240_group); - return err; -} - -static int adm9240_remove(struct i2c_client *client) -{ - struct adm9240_data *data = i2c_get_clientdata(client); - - hwmon_device_unregister(data->hwmon_dev); - sysfs_remove_group(&client->dev.kobj, &adm9240_group); - - return 0; + hwmon_dev = devm_hwmon_device_register_with_groups(dev, + new_client->name, + data, + adm9240_groups); + return PTR_ERR_OR_ZERO(hwmon_dev); } static const struct i2c_device_id adm9240_id[] = { @@ -778,7 +757,6 @@ static struct i2c_driver adm9240_driver = { .name = "adm9240", }, .probe = adm9240_probe, - .remove = adm9240_remove, .id_table = adm9240_id, .detect = adm9240_detect, .address_list = normal_i2c, -- cgit v1.2.3 From 15ac4ddb3271af9471225ef018eb3907989aaf6a Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Tue, 1 Jul 2014 10:55:55 +0800 Subject: hwmon: (g760a) Avoid forward declaration Move g760a_driver to proper place to avoid forward declaration. Also move g760a_id table close to g760a_driver. Signed-off-by: Axel Lin Signed-off-by: Guenter Roeck --- drivers/hwmon/g760a.c | 35 +++++++++++++++-------------------- 1 file changed, 15 insertions(+), 20 deletions(-) diff --git a/drivers/hwmon/g760a.c b/drivers/hwmon/g760a.c index ea6480b80e7f..8460f8062efc 100644 --- a/drivers/hwmon/g760a.c +++ b/drivers/hwmon/g760a.c @@ -24,12 +24,6 @@ #include #include -static const struct i2c_device_id g760a_id[] = { - { "g760a", 0 }, - { } -}; -MODULE_DEVICE_TABLE(i2c, g760a_id); - enum g760a_regs { G760A_REG_SET_CNT = 0x00, G760A_REG_ACT_CNT = 0x01, @@ -74,20 +68,6 @@ static inline unsigned int rpm_from_cnt(u8 val, u32 clk, u16 div) return ((val == 0x00) ? 0 : ((clk*30)/(val*div))); } -/* new-style driver model */ -static int g760a_probe(struct i2c_client *client, - const struct i2c_device_id *id); -static int g760a_remove(struct i2c_client *client); - -static struct i2c_driver g760a_driver = { - .driver = { - .name = "g760a", - }, - .probe = g760a_probe, - .remove = g760a_remove, - .id_table = g760a_id, -}; - /* read/write wrappers */ static int g760a_read_value(struct i2c_client *client, enum g760a_regs reg) { @@ -247,6 +227,21 @@ static int g760a_remove(struct i2c_client *client) return 0; } +static const struct i2c_device_id g760a_id[] = { + { "g760a", 0 }, + { } +}; +MODULE_DEVICE_TABLE(i2c, g760a_id); + +static struct i2c_driver g760a_driver = { + .driver = { + .name = "g760a", + }, + .probe = g760a_probe, + .remove = g760a_remove, + .id_table = g760a_id, +}; + module_i2c_driver(g760a_driver); MODULE_AUTHOR("Herbert Valerio Riedel "); -- cgit v1.2.3 From e47c39b3a8299e2d84d9e3ca5e591bc5055dd1d8 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Tue, 1 Jul 2014 10:57:38 +0800 Subject: hwmon: (g760a) Convert to devm_hwmon_device_register_with_groups Use ATTRIBUTE_GROUPS macro and devm_hwmon_device_register_with_groups() to simplify the code a bit. Signed-off-by: Axel Lin Signed-off-by: Guenter Roeck --- drivers/hwmon/g760a.c | 53 +++++++++++++-------------------------------------- 1 file changed, 13 insertions(+), 40 deletions(-) diff --git a/drivers/hwmon/g760a.c b/drivers/hwmon/g760a.c index 8460f8062efc..ec6a77da411a 100644 --- a/drivers/hwmon/g760a.c +++ b/drivers/hwmon/g760a.c @@ -38,7 +38,6 @@ enum g760a_regs { struct g760a_data { struct i2c_client *client; - struct device *hwmon_dev; struct mutex update_lock; /* board specific parameters */ @@ -86,8 +85,8 @@ static int g760a_write_value(struct i2c_client *client, enum g760a_regs reg, static struct g760a_data *g760a_update_client(struct device *dev) { - struct i2c_client *client = to_i2c_client(dev); - struct g760a_data *data = i2c_get_clientdata(client); + struct g760a_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; mutex_lock(&data->update_lock); @@ -143,8 +142,8 @@ static ssize_t get_pwm(struct device *dev, struct device_attribute *da, static ssize_t set_pwm(struct device *dev, struct device_attribute *da, const char *buf, size_t count) { - struct i2c_client *client = to_i2c_client(dev); struct g760a_data *data = g760a_update_client(dev); + struct i2c_client *client = data->client; unsigned long val; if (kstrtoul(buf, 10, &val)) @@ -162,16 +161,14 @@ static DEVICE_ATTR(pwm1, S_IWUSR | S_IRUGO, get_pwm, set_pwm); static DEVICE_ATTR(fan1_input, S_IRUGO, show_fan, NULL); static DEVICE_ATTR(fan1_alarm, S_IRUGO, show_fan_alarm, NULL); -static struct attribute *g760a_attributes[] = { +static struct attribute *g760a_attrs[] = { &dev_attr_pwm1.attr, &dev_attr_fan1_input.attr, &dev_attr_fan1_alarm.attr, NULL }; -static const struct attribute_group g760a_group = { - .attrs = g760a_attributes, -}; +ATTRIBUTE_GROUPS(g760a); /* * new-style driver model code @@ -180,20 +177,17 @@ static const struct attribute_group g760a_group = { static int g760a_probe(struct i2c_client *client, const struct i2c_device_id *id) { + struct device *dev = &client->dev; struct g760a_data *data; - int err; + struct device *hwmon_dev; - if (!i2c_check_functionality(client->adapter, - I2C_FUNC_SMBUS_BYTE_DATA)) + if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA)) return -EIO; - data = devm_kzalloc(&client->dev, sizeof(struct g760a_data), - GFP_KERNEL); + data = devm_kzalloc(dev, sizeof(struct g760a_data), GFP_KERNEL); if (!data) return -ENOMEM; - i2c_set_clientdata(client, data); - data->client = client; mutex_init(&data->update_lock); @@ -201,30 +195,10 @@ static int g760a_probe(struct i2c_client *client, data->fan_div = G760A_DEFAULT_FAN_DIV; data->clk = G760A_DEFAULT_CLK; - /* Register sysfs hooks */ - err = sysfs_create_group(&client->dev.kobj, &g760a_group); - if (err) - return err; - - data->hwmon_dev = hwmon_device_register(&client->dev); - if (IS_ERR(data->hwmon_dev)) { - err = PTR_ERR(data->hwmon_dev); - goto error_hwmon_device_register; - } - - return 0; - -error_hwmon_device_register: - sysfs_remove_group(&client->dev.kobj, &g760a_group); - return err; -} - -static int g760a_remove(struct i2c_client *client) -{ - struct g760a_data *data = i2c_get_clientdata(client); - hwmon_device_unregister(data->hwmon_dev); - sysfs_remove_group(&client->dev.kobj, &g760a_group); - return 0; + hwmon_dev = devm_hwmon_device_register_with_groups(dev, client->name, + data, + g760a_groups); + return PTR_ERR_OR_ZERO(hwmon_dev); } static const struct i2c_device_id g760a_id[] = { @@ -238,7 +212,6 @@ static struct i2c_driver g760a_driver = { .name = "g760a", }, .probe = g760a_probe, - .remove = g760a_remove, .id_table = g760a_id, }; -- cgit v1.2.3 From a63ee9d83b960199ae111ff4e2413fbe328d32fe Mon Sep 17 00:00:00 2001 From: Guenter Roeck Date: Tue, 22 Apr 2014 16:13:17 -0700 Subject: hwmon: (tmp421) Strengthen detect function Not all supported chips support the entire I2C address range. Only accept specific chips at the addresses supported by that chip. Check for invalid values in conversion rate and status registers. Signed-off-by: Guenter Roeck Reviewed-by: Jean Delvare --- Documentation/hwmon/tmp421 | 4 ++-- drivers/hwmon/tmp421.c | 14 ++++++++++++++ 2 files changed, 16 insertions(+), 2 deletions(-) diff --git a/Documentation/hwmon/tmp421 b/Documentation/hwmon/tmp421 index 0cf07f824741..d0e77143077f 100644 --- a/Documentation/hwmon/tmp421 +++ b/Documentation/hwmon/tmp421 @@ -8,11 +8,11 @@ Supported chips: Datasheet: http://focus.ti.com/docs/prod/folders/print/tmp421.html * Texas Instruments TMP422 Prefix: 'tmp422' - Addresses scanned: I2C 0x2a, 0x4c, 0x4d, 0x4e and 0x4f + Addresses scanned: I2C 0x4c, 0x4d, 0x4e and 0x4f Datasheet: http://focus.ti.com/docs/prod/folders/print/tmp421.html * Texas Instruments TMP423 Prefix: 'tmp423' - Addresses scanned: I2C 0x2a, 0x4c, 0x4d, 0x4e and 0x4f + Addresses scanned: I2C 0x4c and 0x4d Datasheet: http://focus.ti.com/docs/prod/folders/print/tmp421.html Authors: diff --git a/drivers/hwmon/tmp421.c b/drivers/hwmon/tmp421.c index 7bab7a9bedc6..9438c1bd5d59 100644 --- a/drivers/hwmon/tmp421.c +++ b/drivers/hwmon/tmp421.c @@ -42,6 +42,7 @@ static const unsigned short normal_i2c[] = { 0x2a, 0x4c, 0x4d, 0x4e, 0x4f, enum chips { tmp421, tmp422, tmp423 }; /* The TMP421 registers */ +#define TMP421_STATUS_REG 0x08 #define TMP421_CONFIG_REG_1 0x09 #define TMP421_CONVERSION_RATE_REG 0x0B #define TMP421_MANUFACTURER_ID_REG 0xFE @@ -235,6 +236,7 @@ static int tmp421_detect(struct i2c_client *client, enum chips kind; struct i2c_adapter *adapter = client->adapter; const char *names[] = { "TMP421", "TMP422", "TMP423" }; + int addr = client->addr; u8 reg; if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) @@ -244,15 +246,27 @@ static int tmp421_detect(struct i2c_client *client, if (reg != TMP421_MANUFACTURER_ID) return -ENODEV; + reg = i2c_smbus_read_byte_data(client, TMP421_CONVERSION_RATE_REG); + if (reg & 0xf8) + return -ENODEV; + + reg = i2c_smbus_read_byte_data(client, TMP421_STATUS_REG); + if (reg & 0x7f) + return -ENODEV; + reg = i2c_smbus_read_byte_data(client, TMP421_DEVICE_ID_REG); switch (reg) { case TMP421_DEVICE_ID: kind = tmp421; break; case TMP422_DEVICE_ID: + if (addr == 0x2a) + return -ENODEV; kind = tmp422; break; case TMP423_DEVICE_ID: + if (addr != 0x4c && addr != 0x4d) + return -ENODEV; kind = tmp423; break; default: -- cgit v1.2.3 From 05c77ab240fdcba3886913235e37b43e3223e9ee Mon Sep 17 00:00:00 2001 From: Guenter Roeck Date: Sat, 12 Apr 2014 16:12:06 -0700 Subject: hwmon: (tmp421) Add support for TMP441 and TMP442 TMP441 and TMP442 are compatible to TMP421 and TMP422. Signed-off-by: Guenter Roeck Reviewed-by: Jean Delvare --- Documentation/hwmon/tmp421 | 22 +++++++++++++++------- drivers/hwmon/Kconfig | 2 +- drivers/hwmon/tmp421.c | 21 +++++++++++++++++---- 3 files changed, 33 insertions(+), 12 deletions(-) diff --git a/Documentation/hwmon/tmp421 b/Documentation/hwmon/tmp421 index d0e77143077f..9e6fe5549ca1 100644 --- a/Documentation/hwmon/tmp421 +++ b/Documentation/hwmon/tmp421 @@ -14,6 +14,14 @@ Supported chips: Prefix: 'tmp423' Addresses scanned: I2C 0x4c and 0x4d Datasheet: http://focus.ti.com/docs/prod/folders/print/tmp421.html + * Texas Instruments TMP441 + Prefix: 'tmp441' + Addresses scanned: I2C 0x2a, 0x4c, 0x4d, 0x4e and 0x4f + Datasheet: http://www.ti.com/product/tmp441 + * Texas Instruments TMP442 + Prefix: 'tmp442' + Addresses scanned: I2C 0x4c and 0x4d + Datasheet: http://www.ti.com/product/tmp442 Authors: Andre Prendel @@ -21,13 +29,13 @@ Authors: Description ----------- -This driver implements support for Texas Instruments TMP421, TMP422 -and TMP423 temperature sensor chips. These chips implement one local -and up to one (TMP421), up to two (TMP422) or up to three (TMP423) -remote sensors. Temperature is measured in degrees Celsius. The chips -are wired over I2C/SMBus and specified over a temperature range of -40 -to +125 degrees Celsius. Resolution for both the local and remote -channels is 0.0625 degree C. +This driver implements support for Texas Instruments TMP421, TMP422, +TMP423, TMP441, and TMP442 temperature sensor chips. These chips +implement one local and up to one (TMP421, TMP441), up to two (TMP422, +TMP442) or up to three (TMP423) remote sensors. Temperature is measured +in degrees Celsius. The chips are wired over I2C/SMBus and specified +over a temperature range of -40 to +125 degrees Celsius. Resolution +for both the local and remote channels is 0.0625 degree C. The chips support only temperature measurement. The driver exports the temperature values via the following sysfs files: diff --git a/drivers/hwmon/Kconfig b/drivers/hwmon/Kconfig index ae1e2160c1b5..37908ff8f7ff 100644 --- a/drivers/hwmon/Kconfig +++ b/drivers/hwmon/Kconfig @@ -1431,7 +1431,7 @@ config SENSORS_TMP421 depends on I2C help If you say yes here you get support for Texas Instruments TMP421, - TMP422 and TMP423 temperature sensor chips. + TMP422, TMP423, TMP441, and TMP442 temperature sensor chips. This driver can also be built as a module. If so, the module will be called tmp421. diff --git a/drivers/hwmon/tmp421.c b/drivers/hwmon/tmp421.c index 9438c1bd5d59..2ae383f737b4 100644 --- a/drivers/hwmon/tmp421.c +++ b/drivers/hwmon/tmp421.c @@ -21,7 +21,7 @@ /* * Driver for the Texas Instruments TMP421 SMBus temperature sensor IC. - * Supported models: TMP421, TMP422, TMP423 + * Supported models: TMP421, TMP422, TMP423, TMP441, TMP442 */ #include @@ -39,7 +39,7 @@ static const unsigned short normal_i2c[] = { 0x2a, 0x4c, 0x4d, 0x4e, 0x4f, I2C_CLIENT_END }; -enum chips { tmp421, tmp422, tmp423 }; +enum chips { tmp421, tmp422, tmp423, tmp441, tmp442 }; /* The TMP421 registers */ #define TMP421_STATUS_REG 0x08 @@ -60,11 +60,15 @@ static const u8 TMP421_TEMP_LSB[4] = { 0x10, 0x11, 0x12, 0x13 }; #define TMP421_DEVICE_ID 0x21 #define TMP422_DEVICE_ID 0x22 #define TMP423_DEVICE_ID 0x23 +#define TMP441_DEVICE_ID 0x41 +#define TMP442_DEVICE_ID 0x42 static const struct i2c_device_id tmp421_id[] = { { "tmp421", 2 }, { "tmp422", 3 }, { "tmp423", 4 }, + { "tmp441", 2 }, + { "tmp442", 3 }, { } }; MODULE_DEVICE_TABLE(i2c, tmp421_id); @@ -235,7 +239,8 @@ static int tmp421_detect(struct i2c_client *client, { enum chips kind; struct i2c_adapter *adapter = client->adapter; - const char *names[] = { "TMP421", "TMP422", "TMP423" }; + const char * const names[] = { "TMP421", "TMP422", "TMP423", + "TMP441", "TMP442" }; int addr = client->addr; u8 reg; @@ -269,6 +274,14 @@ static int tmp421_detect(struct i2c_client *client, return -ENODEV; kind = tmp423; break; + case TMP441_DEVICE_ID: + kind = tmp441; + break; + case TMP442_DEVICE_ID: + if (addr != 0x4c && addr != 0x4d) + return -ENODEV; + kind = tmp442; + break; default: return -ENODEV; } @@ -319,5 +332,5 @@ static struct i2c_driver tmp421_driver = { module_i2c_driver(tmp421_driver); MODULE_AUTHOR("Andre Prendel "); -MODULE_DESCRIPTION("Texas Instruments TMP421/422/423 temperature sensor driver"); +MODULE_DESCRIPTION("Texas Instruments TMP421/422/423/441/442 temperature sensor driver"); MODULE_LICENSE("GPL"); -- cgit v1.2.3 From 012cb5e257dcce524ee6207e50ca494d8a2b6013 Mon Sep 17 00:00:00 2001 From: Guenter Roeck Date: Tue, 22 Apr 2014 22:16:33 -0700 Subject: hwmon: (tmp421) Drop FSF mailing address The FSF mailing address can and will change over time, so drop it. Signed-off-by: Guenter Roeck Reviewed-by: Jean Delvare --- drivers/hwmon/tmp421.c | 4 ---- 1 file changed, 4 deletions(-) diff --git a/drivers/hwmon/tmp421.c b/drivers/hwmon/tmp421.c index 2ae383f737b4..85d48d80822a 100644 --- a/drivers/hwmon/tmp421.c +++ b/drivers/hwmon/tmp421.c @@ -13,10 +13,6 @@ * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ /* -- cgit v1.2.3 From a8bfeceb0c1400b9331c00f6969afa6cb82d5d4a Mon Sep 17 00:00:00 2001 From: "Zhu, Richard \\(NSN - CN/Beijing\\)" Date: Tue, 1 Jul 2014 07:14:23 +0000 Subject: hwmon: (pmbus) Add tps40422 front-end driver For TI power management chip TPS40422, READ_TEMPERATURE_2 command is supported on page 1 of the chip, but the original driver(pmbus.c) only tried to detect this command on page 0, this will lead to a result that the temperature sensor in page 1 couldn't be detected. This change is to isolate the tps40422 driver from pmbus.c into a solo front-end driver. Signed-off-by: Zhu Laiwen [Guenter Roeck: Dropped unnecessary license text (fixes checkpatch warning)] Signed-off-by: Guenter Roeck --- Documentation/hwmon/pmbus | 5 ++-- Documentation/hwmon/tps40422 | 64 ++++++++++++++++++++++++++++++++++++++++++ drivers/hwmon/pmbus/Kconfig | 13 +++++++-- drivers/hwmon/pmbus/Makefile | 1 + drivers/hwmon/pmbus/pmbus.c | 1 - drivers/hwmon/pmbus/tps40422.c | 64 ++++++++++++++++++++++++++++++++++++++++++ 6 files changed, 142 insertions(+), 6 deletions(-) create mode 100644 Documentation/hwmon/tps40422 create mode 100644 drivers/hwmon/pmbus/tps40422.c diff --git a/Documentation/hwmon/pmbus b/Documentation/hwmon/pmbus index cf756ed48ff9..a3557da8f5b4 100644 --- a/Documentation/hwmon/pmbus +++ b/Documentation/hwmon/pmbus @@ -23,12 +23,11 @@ Supported chips: http://www.lineagepower.com/oem/pdf/PDT012A0X.pdf http://www.lineagepower.com/oem/pdf/UDT020A0X.pdf http://www.lineagepower.com/oem/pdf/MDT040A0X.pdf - * Texas Instruments TPS40400, TPS40422 - Prefixes: 'tps40400', 'tps40422' + * Texas Instruments TPS40400 + Prefixes: 'tps40400' Addresses scanned: - Datasheets: http://www.ti.com/lit/gpn/tps40400 - http://www.ti.com/lit/gpn/tps40422 * Generic PMBus devices Prefix: 'pmbus' Addresses scanned: - diff --git a/Documentation/hwmon/tps40422 b/Documentation/hwmon/tps40422 new file mode 100644 index 000000000000..24bb0688d515 --- /dev/null +++ b/Documentation/hwmon/tps40422 @@ -0,0 +1,64 @@ +Kernel driver tps40422 +====================== + +Supported chips: + * TI TPS40422 + Prefix: 'tps40422' + Addresses scanned: - + Datasheet: http://www.ti.com/lit/gpn/tps40422 + +Author: Zhu Laiwen + + +Description +----------- + +This driver supports TI TPS40422 Dual-Output or Two-Phase Synchronous Buck +Controller with PMBus + +The driver is a client driver to the core PMBus driver. +Please see Documentation/hwmon/pmbus for details on PMBus client drivers. + + +Usage Notes +----------- + +This driver does not auto-detect devices. You will have to instantiate the +devices explicitly. Please see Documentation/i2c/instantiating-devices for +details. + + +Platform data support +--------------------- + +The driver supports standard PMBus driver platform data. + + +Sysfs entries +------------- + +The following attributes are supported. + +in[1-2]_label "vout[1-2]" +in[1-2]_input Measured voltage. From READ_VOUT register. +in[1-2]_alarm voltage alarm. + +curr[1-2]_input Measured current. From READ_IOUT register. +curr[1-2]_label "iout[1-2]" +curr1_max Maximum current. From IOUT_OC_WARN_LIMIT register. +curr1_crit Critical maximum current. From IOUT_OC_FAULT_LIMIT register. +curr1_max_alarm Current high alarm. From IOUT_OC_WARN_LIMIT status. +curr1_crit_alarm Current critical high alarm. From IOUT_OC_FAULT status. +curr2_alarm Current high alarm. From IOUT_OC_WARNING status. + +temp1_input Measured temperature. From READ_TEMPERATURE_2 register on page 0. +temp1_max Maximum temperature. From OT_WARN_LIMIT register. +temp1_crit Critical high temperature. From OT_FAULT_LIMIT register. +temp1_max_alarm Chip temperature high alarm. Set by comparing + READ_TEMPERATURE_2 on page 0 with OT_WARN_LIMIT if TEMP_OT_WARNING + status is set. +temp1_crit_alarm Chip temperature critical high alarm. Set by comparing + READ_TEMPERATURE_2 on page 0 with OT_FAULT_LIMIT if TEMP_OT_FAULT + status is set. +temp2_input Measured temperature. From READ_TEMPERATURE_2 register on page 1. +temp2_alarm Chip temperature alarm on page 1. diff --git a/drivers/hwmon/pmbus/Kconfig b/drivers/hwmon/pmbus/Kconfig index 39cc63edfbb0..6e1e4935fc62 100644 --- a/drivers/hwmon/pmbus/Kconfig +++ b/drivers/hwmon/pmbus/Kconfig @@ -20,8 +20,7 @@ config SENSORS_PMBUS help If you say yes here you get hardware monitoring support for generic PMBus devices, including but not limited to ADP4000, BMR453, BMR454, - MDT040, NCP4200, NCP4208, PDT003, PDT006, PDT012, UDT020, TPS40400, - and TPS40422. + MDT040, NCP4200, NCP4208, PDT003, PDT006, PDT012, UDT020, and TPS40400. This driver can also be built as a module. If so, the module will be called pmbus. @@ -87,6 +86,16 @@ config SENSORS_MAX8688 This driver can also be built as a module. If so, the module will be called max8688. +config SENSORS_TPS40422 + tristate "TI TPS40422" + default n + help + If you say yes here you get hardware monitoring support for TI + TPS40422. + + This driver can also be built as a module. If so, the module will + be called tps40422. + config SENSORS_UCD9000 tristate "TI UCD90120, UCD90124, UCD9090, UCD90910" default n diff --git a/drivers/hwmon/pmbus/Makefile b/drivers/hwmon/pmbus/Makefile index 789376c85dbb..1454293e985c 100644 --- a/drivers/hwmon/pmbus/Makefile +++ b/drivers/hwmon/pmbus/Makefile @@ -10,6 +10,7 @@ obj-$(CONFIG_SENSORS_LTC2978) += ltc2978.o obj-$(CONFIG_SENSORS_MAX16064) += max16064.o obj-$(CONFIG_SENSORS_MAX34440) += max34440.o obj-$(CONFIG_SENSORS_MAX8688) += max8688.o +obj-$(CONFIG_SENSORS_TPS40422) += tps40422.o obj-$(CONFIG_SENSORS_UCD9000) += ucd9000.o obj-$(CONFIG_SENSORS_UCD9200) += ucd9200.o obj-$(CONFIG_SENSORS_ZL6100) += zl6100.o diff --git a/drivers/hwmon/pmbus/pmbus.c b/drivers/hwmon/pmbus/pmbus.c index 7e91700131a7..554d0249dcde 100644 --- a/drivers/hwmon/pmbus/pmbus.c +++ b/drivers/hwmon/pmbus/pmbus.c @@ -193,7 +193,6 @@ static const struct i2c_device_id pmbus_id[] = { {"pdt012", 1}, {"pmbus", 0}, {"tps40400", 1}, - {"tps40422", 2}, {"udt020", 1}, {} }; diff --git a/drivers/hwmon/pmbus/tps40422.c b/drivers/hwmon/pmbus/tps40422.c new file mode 100644 index 000000000000..32803825d47e --- /dev/null +++ b/drivers/hwmon/pmbus/tps40422.c @@ -0,0 +1,64 @@ +/* + * Hardware monitoring driver for TI TPS40422 + * + * Copyright (c) 2014 Nokia Solutions and Networks. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#include +#include +#include +#include +#include +#include "pmbus.h" + +static struct pmbus_driver_info tps40422_info = { + .pages = 2, + .format[PSC_VOLTAGE_IN] = linear, + .format[PSC_VOLTAGE_OUT] = linear, + .format[PSC_TEMPERATURE] = linear, + .func[0] = PMBUS_HAVE_VOUT | PMBUS_HAVE_TEMP2 + | PMBUS_HAVE_STATUS_VOUT | PMBUS_HAVE_STATUS_TEMP + | PMBUS_HAVE_IOUT | PMBUS_HAVE_STATUS_IOUT, + .func[1] = PMBUS_HAVE_VOUT | PMBUS_HAVE_TEMP2 + | PMBUS_HAVE_STATUS_VOUT | PMBUS_HAVE_STATUS_TEMP + | PMBUS_HAVE_IOUT | PMBUS_HAVE_STATUS_IOUT, +}; + +static int tps40422_probe(struct i2c_client *client, + const struct i2c_device_id *id) +{ + return pmbus_do_probe(client, id, &tps40422_info); +} + +static const struct i2c_device_id tps40422_id[] = { + {"tps40422", 0}, + {} +}; + +MODULE_DEVICE_TABLE(i2c, tps40422_id); + +/* This is the driver that will be inserted */ +static struct i2c_driver tps40422_driver = { + .driver = { + .name = "tps40422", + }, + .probe = tps40422_probe, + .remove = pmbus_do_remove, + .id_table = tps40422_id, +}; + +module_i2c_driver(tps40422_driver); + +MODULE_AUTHOR("Zhu Laiwen "); +MODULE_DESCRIPTION("PMBus driver for TI TPS40422"); +MODULE_LICENSE("GPL"); -- cgit v1.2.3 From 24c1aa8587922ba1a3ca4fa58748e94f13b97fab Mon Sep 17 00:00:00 2001 From: Neelesh Gupta Date: Tue, 8 Jul 2014 14:38:38 +0530 Subject: hwmon: (powerpc/powernv) hwmon driver for power, fan rpm, voltage and temperature MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This patch adds basic kernel support for reading power values, fan speed rpm, voltage and temperature data on powernv platforms which will be exported to user space through sysfs interface. Test results: ------------- [root@tul163p1 ~]# sensors ibmpowernv-isa-0000 Adapter: ISA adapter fan1: 5465 RPM (min = 0 RPM) fan2: 5152 RPM (min = 0 RPM) fan3: 5521 RPM (min = 0 RPM) fan4: 4891 RPM (min = 0 RPM) fan5: 0 RPM (min = 0 RPM) fan6: 0 RPM (min = 0 RPM) fan7: 7480 RPM (min = 0 RPM) fan8: 7944 RPM (min = 0 RPM) temp1: +39.0°C (high = +0.0°C) power1: 190.00 W [root@tul163p1 ~]# ls /sys/devices/platform/ alarmtimer ibmpowernv.0 power rtc-generic serial8250 uevent [root@tul163p1 ~]# ls /sys/devices/platform/ibmpowernv.0/hwmon/hwmon0/ device fan2_min fan4_min fan6_min fan8_min power fan1_fault fan3_fault fan5_fault fan7_fault in1_fault power1_input fan1_input fan3_input fan5_input fan7_input in2_fault subsystem fan1_min fan3_min fan5_min fan7_min in3_fault temp1_input fan2_fault fan4_fault fan6_fault fan8_fault in4_fault temp1_max fan2_input fan4_input fan6_input fan8_input name uevent [root@tul163p1 ~]# ls /sys/class/hwmon/hwmon0/ device fan2_min fan4_min fan6_min fan8_min power fan1_fault fan3_fault fan5_fault fan7_fault in1_fault power1_input fan1_input fan3_input fan5_input fan7_input in2_fault subsystem fan1_min fan3_min fan5_min fan7_min in3_fault temp1_input fan2_fault fan4_fault fan6_fault fan8_fault in4_fault temp1_max fan2_input fan4_input fan6_input fan8_input name uevent [root@tul163p1 ~]# Signed-off-by: Neelesh Gupta Signed-off-by: Guenter Roeck --- .../devicetree/bindings/hwmon/ibmpowernv.txt | 23 ++ Documentation/hwmon/ibmpowernv | 41 +++ drivers/hwmon/Kconfig | 11 + drivers/hwmon/Makefile | 1 + drivers/hwmon/ibmpowernv.c | 364 +++++++++++++++++++++ 5 files changed, 440 insertions(+) create mode 100644 Documentation/devicetree/bindings/hwmon/ibmpowernv.txt create mode 100644 Documentation/hwmon/ibmpowernv create mode 100644 drivers/hwmon/ibmpowernv.c diff --git a/Documentation/devicetree/bindings/hwmon/ibmpowernv.txt b/Documentation/devicetree/bindings/hwmon/ibmpowernv.txt new file mode 100644 index 000000000000..f93242be60a1 --- /dev/null +++ b/Documentation/devicetree/bindings/hwmon/ibmpowernv.txt @@ -0,0 +1,23 @@ +IBM POWERNV platform sensors +---------------------------- + +Required node properties: +- compatible: must be one of + "ibm,opal-sensor-cooling-fan" + "ibm,opal-sensor-amb-temp" + "ibm,opal-sensor-power-supply" + "ibm,opal-sensor-power" +- sensor-id: an opaque id provided by the firmware to the kernel, identifies a + given sensor and its attribute data + +Example sensors node: + +cooling-fan#8-data { + sensor-id = <0x7052107>; + compatible = "ibm,opal-sensor-cooling-fan"; +}; + +amb-temp#1-thrs { + sensor-id = <0x5096000>; + compatible = "ibm,opal-sensor-amb-temp"; +}; diff --git a/Documentation/hwmon/ibmpowernv b/Documentation/hwmon/ibmpowernv new file mode 100644 index 000000000000..8826ba29db36 --- /dev/null +++ b/Documentation/hwmon/ibmpowernv @@ -0,0 +1,41 @@ +Kernel Driver IBMPOWERNV +======================== + +Supported systems: + * Any recent IBM P servers based on POWERNV platform + +Author: Neelesh Gupta + +Description +----------- + +This driver implements reading the platform sensors data like temperature/fan/ +voltage/power for 'POWERNV' platform. + +The driver uses the platform device infrastructure. It probes the device tree +for sensor devices during the __init phase and registers them with the 'hwmon'. +'hwmon' populates the 'sysfs' tree having attribute files, each for a given +sensor type and its attribute data. + +All the nodes in the DT appear under "/ibm,opal/sensors" and each valid node in +the DT maps to an attribute file in 'sysfs'. The node exports unique 'sensor-id' +which the driver uses to make an OPAL call to the firmware. + +Usage notes +----------- +The driver is built statically with the kernel by enabling the config +CONFIG_SENSORS_IBMPOWERNV. It can also be built as module 'ibmpowernv'. + +Sysfs attributes +---------------- + +fanX_input Measured RPM value. +fanX_min Threshold RPM for alert generation. +fanX_fault 0: No fail condition + 1: Failing fan +tempX_input Measured ambient temperature. +tempX_max Threshold ambient temperature for alert generation. +inX_input Measured power supply voltage +inX_fault 0: No fail condition. + 1: Failing power supply. +power1_input System power consumption (microWatt) diff --git a/drivers/hwmon/Kconfig b/drivers/hwmon/Kconfig index 37908ff8f7ff..c0aec8db462f 100644 --- a/drivers/hwmon/Kconfig +++ b/drivers/hwmon/Kconfig @@ -554,6 +554,17 @@ config SENSORS_IBMPEX This driver can also be built as a module. If so, the module will be called ibmpex. +config SENSORS_IBMPOWERNV + tristate "IBM POWERNV platform sensors" + depends on PPC_POWERNV + default y + help + If you say yes here you get support for the temperature/fan/power + sensors on your PowerNV platform. + + This driver can also be built as a module. If so, the module + will be called ibmpowernv. + config SENSORS_IIO_HWMON tristate "Hwmon driver that uses channels specified via iio maps" depends on IIO diff --git a/drivers/hwmon/Makefile b/drivers/hwmon/Makefile index 1362382a3187..f4435ea6b169 100644 --- a/drivers/hwmon/Makefile +++ b/drivers/hwmon/Makefile @@ -71,6 +71,7 @@ obj-$(CONFIG_SENSORS_ULTRA45) += ultra45_env.o obj-$(CONFIG_SENSORS_I5K_AMB) += i5k_amb.o obj-$(CONFIG_SENSORS_IBMAEM) += ibmaem.o obj-$(CONFIG_SENSORS_IBMPEX) += ibmpex.o +obj-$(CONFIG_SENSORS_IBMPOWERNV)+= ibmpowernv.o obj-$(CONFIG_SENSORS_IIO_HWMON) += iio_hwmon.o obj-$(CONFIG_SENSORS_INA209) += ina209.o obj-$(CONFIG_SENSORS_INA2XX) += ina2xx.o diff --git a/drivers/hwmon/ibmpowernv.c b/drivers/hwmon/ibmpowernv.c new file mode 100644 index 000000000000..e6b652a35815 --- /dev/null +++ b/drivers/hwmon/ibmpowernv.c @@ -0,0 +1,364 @@ +/* + * IBM PowerNV platform sensors for temperature/fan/voltage/power + * Copyright (C) 2014 IBM + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. + */ + +#define DRVNAME "ibmpowernv" +#define pr_fmt(fmt) DRVNAME ": " fmt + +#include +#include +#include +#include +#include +#include +#include + +#include +#include +#include + +#define MAX_ATTR_LEN 32 + +/* Sensor suffix name from DT */ +#define DT_FAULT_ATTR_SUFFIX "faulted" +#define DT_DATA_ATTR_SUFFIX "data" +#define DT_THRESHOLD_ATTR_SUFFIX "thrs" + +/* + * Enumerates all the types of sensors in the POWERNV platform and does index + * into 'struct sensor_group' + */ +enum sensors { + FAN, + AMBIENT_TEMP, + POWER_SUPPLY, + POWER_INPUT, + MAX_SENSOR_TYPE, +}; + +static struct sensor_group { + const char *name; + const char *compatible; + struct attribute_group group; + u32 attr_count; +} sensor_groups[] = { + {"fan", "ibm,opal-sensor-cooling-fan"}, + {"temp", "ibm,opal-sensor-amb-temp"}, + {"in", "ibm,opal-sensor-power-supply"}, + {"power", "ibm,opal-sensor-power"} +}; + +struct sensor_data { + u32 id; /* An opaque id of the firmware for each sensor */ + enum sensors type; + char name[MAX_ATTR_LEN]; + struct device_attribute dev_attr; +}; + +struct platform_data { + const struct attribute_group *attr_groups[MAX_SENSOR_TYPE + 1]; + u32 sensors_count; /* Total count of sensors from each group */ +}; + +/* Platform device representing all the ibmpowernv sensors */ +static struct platform_device *pdevice; + +static ssize_t show_sensor(struct device *dev, struct device_attribute *devattr, + char *buf) +{ + struct sensor_data *sdata = container_of(devattr, struct sensor_data, + dev_attr); + ssize_t ret; + u32 x; + + ret = opal_get_sensor_data(sdata->id, &x); + if (ret) + return ret; + + /* Convert temperature to milli-degrees */ + if (sdata->type == AMBIENT_TEMP) + x *= 1000; + /* Convert power to micro-watts */ + else if (sdata->type == POWER_INPUT) + x *= 1000000; + + return sprintf(buf, "%u\n", x); +} + +static int __init get_sensor_index_attr(const char *name, u32 *index, + char *attr) +{ + char *hash_pos = strchr(name, '#'); + char buf[8] = { 0 }; + char *dash_pos; + u32 copy_len; + int err; + + if (!hash_pos) + return -EINVAL; + + dash_pos = strchr(hash_pos, '-'); + if (!dash_pos) + return -EINVAL; + + copy_len = dash_pos - hash_pos - 1; + if (copy_len >= sizeof(buf)) + return -EINVAL; + + strncpy(buf, hash_pos + 1, copy_len); + + err = kstrtou32(buf, 10, index); + if (err) + return err; + + strncpy(attr, dash_pos + 1, MAX_ATTR_LEN); + + return 0; +} + +/* + * This function translates the DT node name into the 'hwmon' attribute name. + * IBMPOWERNV device node appear like cooling-fan#2-data, amb-temp#1-thrs etc. + * which need to be mapped as fan2_input, temp1_max respectively before + * populating them inside hwmon device class. + */ +static int __init create_hwmon_attr_name(struct device *dev, enum sensors type, + const char *node_name, + char *hwmon_attr_name) +{ + char attr_suffix[MAX_ATTR_LEN]; + char *attr_name; + u32 index; + int err; + + err = get_sensor_index_attr(node_name, &index, attr_suffix); + if (err) { + dev_err(dev, "Sensor device node name '%s' is invalid\n", + node_name); + return err; + } + + if (!strcmp(attr_suffix, DT_FAULT_ATTR_SUFFIX)) { + attr_name = "fault"; + } else if (!strcmp(attr_suffix, DT_DATA_ATTR_SUFFIX)) { + attr_name = "input"; + } else if (!strcmp(attr_suffix, DT_THRESHOLD_ATTR_SUFFIX)) { + if (type == AMBIENT_TEMP) + attr_name = "max"; + else if (type == FAN) + attr_name = "min"; + else + return -ENOENT; + } else { + return -ENOENT; + } + + snprintf(hwmon_attr_name, MAX_ATTR_LEN, "%s%d_%s", + sensor_groups[type].name, index, attr_name); + return 0; +} + +static int __init populate_attr_groups(struct platform_device *pdev) +{ + struct platform_data *pdata = platform_get_drvdata(pdev); + const struct attribute_group **pgroups = pdata->attr_groups; + struct device_node *opal, *np; + enum sensors type; + + opal = of_find_node_by_path("/ibm,opal/sensors"); + if (!opal) { + dev_err(&pdev->dev, "Opal node 'sensors' not found\n"); + return -ENODEV; + } + + for_each_child_of_node(opal, np) { + if (np->name == NULL) + continue; + + for (type = 0; type < MAX_SENSOR_TYPE; type++) + if (of_device_is_compatible(np, + sensor_groups[type].compatible)) { + sensor_groups[type].attr_count++; + break; + } + } + + of_node_put(opal); + + for (type = 0; type < MAX_SENSOR_TYPE; type++) { + sensor_groups[type].group.attrs = devm_kzalloc(&pdev->dev, + sizeof(struct attribute *) * + (sensor_groups[type].attr_count + 1), + GFP_KERNEL); + if (!sensor_groups[type].group.attrs) + return -ENOMEM; + + pgroups[type] = &sensor_groups[type].group; + pdata->sensors_count += sensor_groups[type].attr_count; + sensor_groups[type].attr_count = 0; + } + + return 0; +} + +/* + * Iterate through the device tree for each child of 'sensors' node, create + * a sysfs attribute file, the file is named by translating the DT node name + * to the name required by the higher 'hwmon' driver like fan1_input, temp1_max + * etc.. + */ +static int __init create_device_attrs(struct platform_device *pdev) +{ + struct platform_data *pdata = platform_get_drvdata(pdev); + const struct attribute_group **pgroups = pdata->attr_groups; + struct device_node *opal, *np; + struct sensor_data *sdata; + const __be32 *sensor_id; + enum sensors type; + u32 count = 0; + int err = 0; + + opal = of_find_node_by_path("/ibm,opal/sensors"); + sdata = devm_kzalloc(&pdev->dev, pdata->sensors_count * sizeof(*sdata), + GFP_KERNEL); + if (!sdata) { + err = -ENOMEM; + goto exit_put_node; + } + + for_each_child_of_node(opal, np) { + if (np->name == NULL) + continue; + + for (type = 0; type < MAX_SENSOR_TYPE; type++) + if (of_device_is_compatible(np, + sensor_groups[type].compatible)) + break; + + if (type == MAX_SENSOR_TYPE) + continue; + + sensor_id = of_get_property(np, "sensor-id", NULL); + if (!sensor_id) { + dev_info(&pdev->dev, + "'sensor-id' missing in the node '%s'\n", + np->name); + continue; + } + + sdata[count].id = be32_to_cpup(sensor_id); + sdata[count].type = type; + err = create_hwmon_attr_name(&pdev->dev, type, np->name, + sdata[count].name); + if (err) + goto exit_put_node; + + sysfs_attr_init(&sdata[count].dev_attr.attr); + sdata[count].dev_attr.attr.name = sdata[count].name; + sdata[count].dev_attr.attr.mode = S_IRUGO; + sdata[count].dev_attr.show = show_sensor; + + pgroups[type]->attrs[sensor_groups[type].attr_count++] = + &sdata[count++].dev_attr.attr; + } + +exit_put_node: + of_node_put(opal); + return err; +} + +static int __init ibmpowernv_probe(struct platform_device *pdev) +{ + struct platform_data *pdata; + struct device *hwmon_dev; + int err; + + pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL); + if (!pdata) + return -ENOMEM; + + platform_set_drvdata(pdev, pdata); + pdata->sensors_count = 0; + err = populate_attr_groups(pdev); + if (err) + return err; + + /* Create sysfs attribute data for each sensor found in the DT */ + err = create_device_attrs(pdev); + if (err) + return err; + + /* Finally, register with hwmon */ + hwmon_dev = devm_hwmon_device_register_with_groups(&pdev->dev, DRVNAME, + pdata, + pdata->attr_groups); + + return PTR_ERR_OR_ZERO(hwmon_dev); +} + +static struct platform_driver ibmpowernv_driver = { + .driver = { + .owner = THIS_MODULE, + .name = DRVNAME, + }, +}; + +static int __init ibmpowernv_init(void) +{ + int err; + + pdevice = platform_device_alloc(DRVNAME, 0); + if (!pdevice) { + pr_err("Device allocation failed\n"); + err = -ENOMEM; + goto exit; + } + + err = platform_device_add(pdevice); + if (err) { + pr_err("Device addition failed (%d)\n", err); + goto exit_device_put; + } + + err = platform_driver_probe(&ibmpowernv_driver, ibmpowernv_probe); + if (err) { + pr_err("Platfrom driver probe failed\n"); + goto exit_device_del; + } + + return 0; + +exit_device_del: + platform_device_del(pdevice); +exit_device_put: + platform_device_put(pdevice); +exit: + return err; +} + +static void __exit ibmpowernv_exit(void) +{ + platform_driver_unregister(&ibmpowernv_driver); + platform_device_unregister(pdevice); +} + +MODULE_AUTHOR("Neelesh Gupta "); +MODULE_DESCRIPTION("IBM POWERNV platform sensors"); +MODULE_LICENSE("GPL"); + +module_init(ibmpowernv_init); +module_exit(ibmpowernv_exit); -- cgit v1.2.3 From 4395d78056a8b5716f7e1858feb721ccf91fb104 Mon Sep 17 00:00:00 2001 From: Aravind Gopalakrishnan Date: Thu, 10 Jul 2014 17:16:00 -0500 Subject: hwmon: (fam15h_power) Remove needless pci dev id PCI_DEVICE_ID_AMD_16H_NB_F4 can be obtained from it's definition in pci_ids.h. So we don't have to define it again here. Signed-off-by: Aravind Gopalakrishnan Signed-off-by: Guenter Roeck --- drivers/hwmon/fam15h_power.c | 3 --- 1 file changed, 3 deletions(-) diff --git a/drivers/hwmon/fam15h_power.c b/drivers/hwmon/fam15h_power.c index 7e36aa93e2b3..4a7cbfad1d74 100644 --- a/drivers/hwmon/fam15h_power.c +++ b/drivers/hwmon/fam15h_power.c @@ -31,9 +31,6 @@ MODULE_DESCRIPTION("AMD Family 15h CPU processor power monitor"); MODULE_AUTHOR("Andreas Herrmann "); MODULE_LICENSE("GPL"); -/* Family 16h Northbridge's function 4 PCI ID */ -#define PCI_DEVICE_ID_AMD_16H_NB_F4 0x1534 - /* D18F3 */ #define REG_NORTHBRIDGE_CAP 0xe8 -- cgit v1.2.3 From b8d56898307f561d7e100d33c244001a34ee1262 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Fri, 11 Jul 2014 10:44:48 +0800 Subject: hwmon: (sht21) Convert to devm_hwmon_device_register_with_groups Use ATTRIBUTE_GROUPS macro and devm_hwmon_device_register_with_groups() to simplify the code a bit. Signed-off-by: Axel Lin Signed-off-by: Guenter Roeck --- drivers/hwmon/sht21.c | 82 ++++++++++++++------------------------------------- 1 file changed, 22 insertions(+), 60 deletions(-) diff --git a/drivers/hwmon/sht21.c b/drivers/hwmon/sht21.c index 2e9f9570b6f8..84cdb1cf0fb4 100644 --- a/drivers/hwmon/sht21.c +++ b/drivers/hwmon/sht21.c @@ -45,7 +45,7 @@ * @humidity: cached humidity measurement value */ struct sht21 { - struct device *hwmon_dev; + struct i2c_client *client; struct mutex lock; char valid; unsigned long last_update; @@ -85,14 +85,15 @@ static inline int sht21_rh_ticks_to_per_cent_mille(int ticks) /** * sht21_update_measurements() - get updated measurements from device - * @client: I2C client device + * @dev: device * * Returns 0 on success, else negative errno. */ -static int sht21_update_measurements(struct i2c_client *client) +static int sht21_update_measurements(struct device *dev) { int ret = 0; - struct sht21 *sht21 = i2c_get_clientdata(client); + struct sht21 *sht21 = dev_get_drvdata(dev); + struct i2c_client *client = sht21->client; mutex_lock(&sht21->lock); /* @@ -133,9 +134,10 @@ static ssize_t sht21_show_temperature(struct device *dev, struct device_attribute *attr, char *buf) { - struct i2c_client *client = to_i2c_client(dev); - struct sht21 *sht21 = i2c_get_clientdata(client); - int ret = sht21_update_measurements(client); + struct sht21 *sht21 = dev_get_drvdata(dev); + int ret; + + ret = sht21_update_measurements(dev); if (ret < 0) return ret; return sprintf(buf, "%d\n", sht21->temperature); @@ -154,9 +156,10 @@ static ssize_t sht21_show_humidity(struct device *dev, struct device_attribute *attr, char *buf) { - struct i2c_client *client = to_i2c_client(dev); - struct sht21 *sht21 = i2c_get_clientdata(client); - int ret = sht21_update_measurements(client); + struct sht21 *sht21 = dev_get_drvdata(dev); + int ret; + + ret = sht21_update_measurements(dev); if (ret < 0) return ret; return sprintf(buf, "%d\n", sht21->humidity); @@ -168,30 +171,20 @@ static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, sht21_show_temperature, static SENSOR_DEVICE_ATTR(humidity1_input, S_IRUGO, sht21_show_humidity, NULL, 0); -static struct attribute *sht21_attributes[] = { +static struct attribute *sht21_attrs[] = { &sensor_dev_attr_temp1_input.dev_attr.attr, &sensor_dev_attr_humidity1_input.dev_attr.attr, NULL }; -static const struct attribute_group sht21_attr_group = { - .attrs = sht21_attributes, -}; +ATTRIBUTE_GROUPS(sht21); -/** - * sht21_probe() - probe device - * @client: I2C client device - * @id: device ID - * - * Called by the I2C core when an entry in the ID table matches a - * device's name. - * Returns 0 on success. - */ static int sht21_probe(struct i2c_client *client, const struct i2c_device_id *id) { + struct device *dev = &client->dev; + struct device *hwmon_dev; struct sht21 *sht21; - int err; if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_WORD_DATA)) { @@ -200,47 +193,17 @@ static int sht21_probe(struct i2c_client *client, return -ENODEV; } - sht21 = devm_kzalloc(&client->dev, sizeof(*sht21), GFP_KERNEL); + sht21 = devm_kzalloc(dev, sizeof(*sht21), GFP_KERNEL); if (!sht21) return -ENOMEM; - i2c_set_clientdata(client, sht21); + sht21->client = client; mutex_init(&sht21->lock); - err = sysfs_create_group(&client->dev.kobj, &sht21_attr_group); - if (err) { - dev_dbg(&client->dev, "could not create sysfs files\n"); - return err; - } - sht21->hwmon_dev = hwmon_device_register(&client->dev); - if (IS_ERR(sht21->hwmon_dev)) { - dev_dbg(&client->dev, "unable to register hwmon device\n"); - err = PTR_ERR(sht21->hwmon_dev); - goto fail_remove_sysfs; - } - - dev_info(&client->dev, "initialized\n"); - - return 0; - -fail_remove_sysfs: - sysfs_remove_group(&client->dev.kobj, &sht21_attr_group); - return err; -} - -/** - * sht21_remove() - remove device - * @client: I2C client device - */ -static int sht21_remove(struct i2c_client *client) -{ - struct sht21 *sht21 = i2c_get_clientdata(client); - - hwmon_device_unregister(sht21->hwmon_dev); - sysfs_remove_group(&client->dev.kobj, &sht21_attr_group); - - return 0; + hwmon_dev = devm_hwmon_device_register_with_groups(dev, client->name, + sht21, sht21_groups); + return PTR_ERR_OR_ZERO(hwmon_dev); } /* Device ID table */ @@ -253,7 +216,6 @@ MODULE_DEVICE_TABLE(i2c, sht21_id); static struct i2c_driver sht21_driver = { .driver.name = "sht21", .probe = sht21_probe, - .remove = sht21_remove, .id_table = sht21_id, }; -- cgit v1.2.3 From a7b30ea500989e1fde0adbe563976d5379fedb59 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Fri, 11 Jul 2014 16:45:37 +0800 Subject: hwmon: (max16065) Use PTR_ERR_OR_ZERO Signed-off-by: Axel Lin Signed-off-by: Guenter Roeck --- drivers/hwmon/max16065.c | 5 +---- 1 file changed, 1 insertion(+), 4 deletions(-) diff --git a/drivers/hwmon/max16065.c b/drivers/hwmon/max16065.c index d4efc79d7b93..162401aaef71 100644 --- a/drivers/hwmon/max16065.c +++ b/drivers/hwmon/max16065.c @@ -642,10 +642,7 @@ static int max16065_probe(struct i2c_client *client, hwmon_dev = devm_hwmon_device_register_with_groups(dev, client->name, data, data->groups); - if (unlikely(IS_ERR(hwmon_dev))) - return PTR_ERR(hwmon_dev); - - return 0; + return PTR_ERR_OR_ZERO(hwmon_dev); } static const struct i2c_device_id max16065_id[] = { -- cgit v1.2.3 From f073b9942731cbef167b8a6d6bacc80370fddf8c Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Wed, 9 Jul 2014 09:59:51 +0800 Subject: hwmon: (ds620) Convert to devm_hwmon_device_register_with_groups Use ATTRIBUTE_GROUPS macro and devm_hwmon_device_register_with_groups() to simplify the code a bit. Signed-off-by: Axel Lin Signed-off-by: Guenter Roeck --- drivers/hwmon/ds620.c | 60 +++++++++++++++------------------------------------ 1 file changed, 17 insertions(+), 43 deletions(-) diff --git a/drivers/hwmon/ds620.c b/drivers/hwmon/ds620.c index 0918b9136588..edf550fc4eef 100644 --- a/drivers/hwmon/ds620.c +++ b/drivers/hwmon/ds620.c @@ -67,7 +67,7 @@ static const u8 DS620_REG_TEMP[3] = { /* Each client has this additional data */ struct ds620_data { - struct device *hwmon_dev; + struct i2c_client *client; struct mutex update_lock; char valid; /* !=0 if following fields are valid */ unsigned long last_updated; /* In jiffies */ @@ -106,8 +106,8 @@ static void ds620_init_client(struct i2c_client *client) static struct ds620_data *ds620_update_client(struct device *dev) { - struct i2c_client *client = to_i2c_client(dev); - struct ds620_data *data = i2c_get_clientdata(client); + struct ds620_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; struct ds620_data *ret = data; mutex_lock(&data->update_lock); @@ -158,8 +158,8 @@ static ssize_t set_temp(struct device *dev, struct device_attribute *da, long val; struct sensor_device_attribute *attr = to_sensor_dev_attr(da); - struct i2c_client *client = to_i2c_client(dev); - struct ds620_data *data = i2c_get_clientdata(client); + struct ds620_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; res = kstrtol(buf, 10, &val); @@ -181,13 +181,15 @@ static ssize_t show_alarm(struct device *dev, struct device_attribute *da, { struct sensor_device_attribute *attr = to_sensor_dev_attr(da); struct ds620_data *data = ds620_update_client(dev); - struct i2c_client *client = to_i2c_client(dev); + struct i2c_client *client; u16 conf, new_conf; int res; if (IS_ERR(data)) return PTR_ERR(data); + client = data->client; + /* reset alarms if necessary */ res = i2c_smbus_read_word_swapped(client, DS620_REG_CONF); if (res < 0) @@ -213,7 +215,7 @@ static SENSOR_DEVICE_ATTR(temp1_min_alarm, S_IRUGO, show_alarm, NULL, static SENSOR_DEVICE_ATTR(temp1_max_alarm, S_IRUGO, show_alarm, NULL, DS620_REG_CONFIG_THF); -static struct attribute *ds620_attributes[] = { +static struct attribute *ds620_attrs[] = { &sensor_dev_attr_temp1_input.dev_attr.attr, &sensor_dev_attr_temp1_min.dev_attr.attr, &sensor_dev_attr_temp1_max.dev_attr.attr, @@ -222,55 +224,28 @@ static struct attribute *ds620_attributes[] = { NULL }; -static const struct attribute_group ds620_group = { - .attrs = ds620_attributes, -}; +ATTRIBUTE_GROUPS(ds620); static int ds620_probe(struct i2c_client *client, const struct i2c_device_id *id) { + struct device *dev = &client->dev; + struct device *hwmon_dev; struct ds620_data *data; - int err; - data = devm_kzalloc(&client->dev, sizeof(struct ds620_data), - GFP_KERNEL); + data = devm_kzalloc(dev, sizeof(struct ds620_data), GFP_KERNEL); if (!data) return -ENOMEM; - i2c_set_clientdata(client, data); + data->client = client; mutex_init(&data->update_lock); /* Initialize the DS620 chip */ ds620_init_client(client); - /* Register sysfs hooks */ - err = sysfs_create_group(&client->dev.kobj, &ds620_group); - if (err) - return err; - - data->hwmon_dev = hwmon_device_register(&client->dev); - if (IS_ERR(data->hwmon_dev)) { - err = PTR_ERR(data->hwmon_dev); - goto exit_remove_files; - } - - dev_info(&client->dev, "temperature sensor found\n"); - - return 0; - -exit_remove_files: - sysfs_remove_group(&client->dev.kobj, &ds620_group); - return err; -} - -static int ds620_remove(struct i2c_client *client) -{ - struct ds620_data *data = i2c_get_clientdata(client); - - hwmon_device_unregister(data->hwmon_dev); - sysfs_remove_group(&client->dev.kobj, &ds620_group); - - return 0; + hwmon_dev = devm_hwmon_device_register_with_groups(dev, client->name, + data, ds620_groups); + return PTR_ERR_OR_ZERO(hwmon_dev); } static const struct i2c_device_id ds620_id[] = { @@ -287,7 +262,6 @@ static struct i2c_driver ds620_driver = { .name = "ds620", }, .probe = ds620_probe, - .remove = ds620_remove, .id_table = ds620_id, }; -- cgit v1.2.3 From 7a7176aa4bf49685ddbef9adbdaf7383dc62ceed Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Tue, 15 Jul 2014 19:15:01 +0800 Subject: hwmon: (asc7621) Make map tables const Map tables are never changed, so it is safe to make them const. Signed-off-by: Axel Lin Acked-by: George Joseph Signed-off-by: Guenter Roeck --- drivers/hwmon/asc7621.c | 14 +++++++------- 1 file changed, 7 insertions(+), 7 deletions(-) diff --git a/drivers/hwmon/asc7621.c b/drivers/hwmon/asc7621.c index 71463689d163..c77644d45a02 100644 --- a/drivers/hwmon/asc7621.c +++ b/drivers/hwmon/asc7621.c @@ -300,7 +300,7 @@ static ssize_t store_fan16(struct device *dev, * respectively. That doesn't mean that's what the motherboard provides. :) */ -static int asc7621_in_scaling[] = { +static const int asc7621_in_scaling[] = { 2500, 2250, 3300, 5000, 12000 }; @@ -451,7 +451,7 @@ static ssize_t store_temp62(struct device *dev, * hwmon specs, we synthesize the auto_point_2 from them. */ -static u32 asc7621_range_map[] = { +static const u32 asc7621_range_map[] = { 2000, 2500, 3330, 4000, 5000, 6670, 8000, 10000, 13330, 16000, 20000, 26670, 32000, 40000, 53330, 80000, }; @@ -512,7 +512,7 @@ static ssize_t show_pwm_ac(struct device *dev, { SETUP_SHOW_DATA_PARAM(dev, attr); u8 config, altbit, regval; - u8 map[] = { + const u8 map[] = { 0x01, 0x02, 0x04, 0x1f, 0x00, 0x06, 0x07, 0x10, 0x08, 0x0f, 0x1f, 0x1f, 0x1f, 0x1f, 0x1f, 0x1f }; @@ -533,7 +533,7 @@ static ssize_t store_pwm_ac(struct device *dev, SETUP_STORE_DATA_PARAM(dev, attr); unsigned long reqval; u8 currval, config, altbit, newval; - u16 map[] = { + const u16 map[] = { 0x04, 0x00, 0x01, 0xff, 0x02, 0xff, 0x05, 0x06, 0x08, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x0f, 0x07, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, @@ -651,7 +651,7 @@ static ssize_t store_pwm_enable(struct device *dev, return count; } -static u32 asc7621_pwm_freq_map[] = { +static const u32 asc7621_pwm_freq_map[] = { 10, 15, 23, 30, 38, 47, 62, 94, 23000, 24000, 25000, 26000, 27000, 28000, 29000, 30000 }; @@ -700,7 +700,7 @@ static ssize_t store_pwm_freq(struct device *dev, return count; } -static u32 asc7621_pwm_auto_spinup_map[] = { +static const u32 asc7621_pwm_auto_spinup_map[] = { 0, 100, 250, 400, 700, 1000, 2000, 4000 }; @@ -749,7 +749,7 @@ static ssize_t store_pwm_ast(struct device *dev, return count; } -static u32 asc7621_temp_smoothing_time_map[] = { +static const u32 asc7621_temp_smoothing_time_map[] = { 35000, 17600, 11800, 7000, 4400, 3000, 1600, 800 }; -- cgit v1.2.3 From d82d57767c85984132cde4efaf89ad6db290cda3 Mon Sep 17 00:00:00 2001 From: Kamil Debski Date: Wed, 16 Jul 2014 17:46:42 +0200 Subject: hwmon: Add pwm-fan driver The pwm-fan driver enables control of fans connected to PWM lines. This driver uses the PWM framework, so it is compatible with all PWM devices that provide drivers through the PWM framework. Signed-off-by: Kamil Debski Reviewed-by: Varka Bhadram Reviewed-by: Tobias Klauser [Guenter Roeck: Last argument to devm_of_pwm_get is pointer, use NULL] Signed-off-by: Guenter Roeck --- .../devicetree/bindings/hwmon/pwm-fan.txt | 12 ++ Documentation/hwmon/pwm-fan | 17 ++ drivers/hwmon/Kconfig | 11 ++ drivers/hwmon/Makefile | 1 + drivers/hwmon/pwm-fan.c | 194 +++++++++++++++++++++ 5 files changed, 235 insertions(+) create mode 100644 Documentation/devicetree/bindings/hwmon/pwm-fan.txt create mode 100644 Documentation/hwmon/pwm-fan create mode 100644 drivers/hwmon/pwm-fan.c diff --git a/Documentation/devicetree/bindings/hwmon/pwm-fan.txt b/Documentation/devicetree/bindings/hwmon/pwm-fan.txt new file mode 100644 index 000000000000..610757ce4492 --- /dev/null +++ b/Documentation/devicetree/bindings/hwmon/pwm-fan.txt @@ -0,0 +1,12 @@ +Bindings for a fan connected to the PWM lines + +Required properties: +- compatible : "pwm-fan" +- pwms : the PWM that is used to control the PWM fan + +Example: + pwm-fan { + compatible = "pwm-fan"; + status = "okay"; + pwms = <&pwm 0 10000 0>; + }; diff --git a/Documentation/hwmon/pwm-fan b/Documentation/hwmon/pwm-fan new file mode 100644 index 000000000000..18529d2e3bcf --- /dev/null +++ b/Documentation/hwmon/pwm-fan @@ -0,0 +1,17 @@ +Kernel driver pwm-fan +===================== + +This driver enables the use of a PWM module to drive a fan. It uses the +generic PWM interface thus it is hardware independent. It can be used on +many SoCs, as long as the SoC supplies a PWM line driver that exposes +the generic PWM API. + +Author: Kamil Debski + +Description +----------- + +The driver implements a simple interface for driving a fan connected to +a PWM output. It uses the generic PWM interface, thus it can be used with +a range of SoCs. The driver exposes the fan to the user space through +the hwmon's sysfs interface. diff --git a/drivers/hwmon/Kconfig b/drivers/hwmon/Kconfig index c0aec8db462f..b93ab97732c0 100644 --- a/drivers/hwmon/Kconfig +++ b/drivers/hwmon/Kconfig @@ -1128,6 +1128,17 @@ config SENSORS_PCF8591 source drivers/hwmon/pmbus/Kconfig +config SENSORS_PWM_FAN + tristate "PWM fan" + depends on PWM + help + If you say yes here you get support for fans connected to PWM lines. + The driver uses the generic PWM interface, thus it will work on a + variety of SoCs. + + This driver can also be built as a module. If so, the module + will be called pwm-fan. + config SENSORS_SHT15 tristate "Sensiron humidity and temperature sensors. SHT15 and compat." depends on GPIOLIB diff --git a/drivers/hwmon/Makefile b/drivers/hwmon/Makefile index f4435ea6b169..be28152c9848 100644 --- a/drivers/hwmon/Makefile +++ b/drivers/hwmon/Makefile @@ -122,6 +122,7 @@ obj-$(CONFIG_SENSORS_PC87360) += pc87360.o obj-$(CONFIG_SENSORS_PC87427) += pc87427.o obj-$(CONFIG_SENSORS_PCF8591) += pcf8591.o obj-$(CONFIG_SENSORS_POWR1220) += powr1220.o +obj-$(CONFIG_SENSORS_PWM_FAN) += pwm-fan.o obj-$(CONFIG_SENSORS_S3C) += s3c-hwmon.o obj-$(CONFIG_SENSORS_SCH56XX_COMMON)+= sch56xx-common.o obj-$(CONFIG_SENSORS_SCH5627) += sch5627.o diff --git a/drivers/hwmon/pwm-fan.c b/drivers/hwmon/pwm-fan.c new file mode 100644 index 000000000000..af30dd63de6a --- /dev/null +++ b/drivers/hwmon/pwm-fan.c @@ -0,0 +1,194 @@ +/* + * pwm-fan.c - Hwmon driver for fans connected to PWM lines. + * + * Copyright (c) 2014 Samsung Electronics Co., Ltd. + * + * Author: Kamil Debski + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#include +#include +#include +#include +#include +#include +#include +#include + +#define MAX_PWM 255 + +struct pwm_fan_ctx { + struct mutex lock; + struct pwm_device *pwm; + unsigned char pwm_value; +}; + +static ssize_t set_pwm(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) +{ + struct pwm_fan_ctx *ctx = dev_get_drvdata(dev); + unsigned long pwm, duty; + ssize_t ret; + + if (kstrtoul(buf, 10, &pwm) || pwm > MAX_PWM) + return -EINVAL; + + mutex_lock(&ctx->lock); + + if (ctx->pwm_value == pwm) + goto exit_set_pwm_no_change; + + if (pwm == 0) { + pwm_disable(ctx->pwm); + goto exit_set_pwm; + } + + duty = DIV_ROUND_UP(pwm * (ctx->pwm->period - 1), MAX_PWM); + ret = pwm_config(ctx->pwm, duty, ctx->pwm->period); + if (ret) + goto exit_set_pwm_err; + + if (ctx->pwm_value == 0) { + ret = pwm_enable(ctx->pwm); + if (ret) + goto exit_set_pwm_err; + } + +exit_set_pwm: + ctx->pwm_value = pwm; +exit_set_pwm_no_change: + ret = count; +exit_set_pwm_err: + mutex_unlock(&ctx->lock); + return ret; +} + +static ssize_t show_pwm(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct pwm_fan_ctx *ctx = dev_get_drvdata(dev); + + return sprintf(buf, "%u\n", ctx->pwm_value); +} + + +static SENSOR_DEVICE_ATTR(pwm1, S_IRUGO | S_IWUSR, show_pwm, set_pwm, 0); + +static struct attribute *pwm_fan_attrs[] = { + &sensor_dev_attr_pwm1.dev_attr.attr, + NULL, +}; + +ATTRIBUTE_GROUPS(pwm_fan); + +static int pwm_fan_probe(struct platform_device *pdev) +{ + struct device *hwmon; + struct pwm_fan_ctx *ctx; + int duty_cycle; + int ret; + + ctx = devm_kzalloc(&pdev->dev, sizeof(*ctx), GFP_KERNEL); + if (!ctx) + return -ENOMEM; + + mutex_init(&ctx->lock); + + ctx->pwm = devm_of_pwm_get(&pdev->dev, pdev->dev.of_node, NULL); + if (IS_ERR(ctx->pwm)) { + dev_err(&pdev->dev, "Could not get PWM\n"); + return PTR_ERR(ctx->pwm); + } + + dev_set_drvdata(&pdev->dev, ctx); + platform_set_drvdata(pdev, ctx); + + /* Set duty cycle to maximum allowed */ + duty_cycle = ctx->pwm->period - 1; + ctx->pwm_value = MAX_PWM; + + ret = pwm_config(ctx->pwm, duty_cycle, ctx->pwm->period); + if (ret) { + dev_err(&pdev->dev, "Failed to configure PWM\n"); + return ret; + } + + /* Enbale PWM output */ + ret = pwm_enable(ctx->pwm); + if (ret) { + dev_err(&pdev->dev, "Failed to enable PWM\n"); + return ret; + } + + hwmon = devm_hwmon_device_register_with_groups(&pdev->dev, "pwmfan", + ctx, pwm_fan_groups); + if (IS_ERR(hwmon)) { + dev_err(&pdev->dev, "Failed to register hwmon device\n"); + pwm_disable(ctx->pwm); + return PTR_ERR(hwmon); + } + return 0; +} + +static int pwm_fan_remove(struct platform_device *pdev) +{ + struct pwm_fan_ctx *ctx = platform_get_drvdata(pdev); + + if (ctx->pwm_value) + pwm_disable(ctx->pwm); + return 0; +} + +#ifdef CONFIG_PM_SLEEP +static int pwm_fan_suspend(struct device *dev) +{ + struct pwm_fan_ctx *ctx = dev_get_drvdata(dev); + + if (ctx->pwm_value) + pwm_disable(ctx->pwm); + return 0; +} + +static int pwm_fan_resume(struct device *dev) +{ + struct pwm_fan_ctx *ctx = dev_get_drvdata(dev); + + if (ctx->pwm_value) + return pwm_enable(ctx->pwm); + return 0; +} +#endif + +static SIMPLE_DEV_PM_OPS(pwm_fan_pm, pwm_fan_suspend, pwm_fan_resume); + +static struct of_device_id of_pwm_fan_match[] = { + { .compatible = "pwm-fan", }, + {}, +}; + +static struct platform_driver pwm_fan_driver = { + .probe = pwm_fan_probe, + .remove = pwm_fan_remove, + .driver = { + .name = "pwm-fan", + .pm = &pwm_fan_pm, + .of_match_table = of_pwm_fan_match, + }, +}; + +module_platform_driver(pwm_fan_driver); + +MODULE_AUTHOR("Kamil Debski "); +MODULE_ALIAS("platform:pwm-fan"); +MODULE_DESCRIPTION("PWM FAN driver"); +MODULE_LICENSE("GPL"); -- cgit v1.2.3 From a2cc242823399bcb64dcd487f8b51c061844165c Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Wed, 16 Jul 2014 23:09:41 +0800 Subject: hwmon: (adt7462) Avoid forward declaration Reorder functions to avoid forward declaration. Signed-off-by: Axel Lin Signed-off-by: Guenter Roeck --- drivers/hwmon/adt7462.c | 42 ++++++++++++++++++------------------------ 1 file changed, 18 insertions(+), 24 deletions(-) diff --git a/drivers/hwmon/adt7462.c b/drivers/hwmon/adt7462.c index 562cc3881d33..c4a1784e3f2b 100644 --- a/drivers/hwmon/adt7462.c +++ b/drivers/hwmon/adt7462.c @@ -232,30 +232,6 @@ struct adt7462_data { u8 alarms[ADT7462_ALARM_REG_COUNT]; }; -static int adt7462_probe(struct i2c_client *client, - const struct i2c_device_id *id); -static int adt7462_detect(struct i2c_client *client, - struct i2c_board_info *info); -static int adt7462_remove(struct i2c_client *client); - -static const struct i2c_device_id adt7462_id[] = { - { "adt7462", 0 }, - { } -}; -MODULE_DEVICE_TABLE(i2c, adt7462_id); - -static struct i2c_driver adt7462_driver = { - .class = I2C_CLASS_HWMON, - .driver = { - .name = "adt7462", - }, - .probe = adt7462_probe, - .remove = adt7462_remove, - .id_table = adt7462_id, - .detect = adt7462_detect, - .address_list = normal_i2c, -}; - /* * 16-bit registers on the ADT7462 are low-byte first. The data sheet says * that the low byte must be read before the high byte. @@ -1967,6 +1943,24 @@ static int adt7462_remove(struct i2c_client *client) return 0; } +static const struct i2c_device_id adt7462_id[] = { + { "adt7462", 0 }, + { } +}; +MODULE_DEVICE_TABLE(i2c, adt7462_id); + +static struct i2c_driver adt7462_driver = { + .class = I2C_CLASS_HWMON, + .driver = { + .name = "adt7462", + }, + .probe = adt7462_probe, + .remove = adt7462_remove, + .id_table = adt7462_id, + .detect = adt7462_detect, + .address_list = normal_i2c, +}; + module_i2c_driver(adt7462_driver); MODULE_AUTHOR("Darrick J. Wong "); -- cgit v1.2.3 From 573bfe67ca1057febc6a0ccd8caff9a9fdb01994 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Wed, 16 Jul 2014 23:10:46 +0800 Subject: hwmon: (adt7462) Convert to devm_hwmon_device_register_with_groups Use ATTRIBUTE_GROUPS macro and devm_hwmon_device_register_with_groups() to simplify the code a bit. Signed-off-by: Axel Lin Signed-off-by: Guenter Roeck --- drivers/hwmon/adt7462.c | 106 +++++++++++++++++++----------------------------- 1 file changed, 42 insertions(+), 64 deletions(-) diff --git a/drivers/hwmon/adt7462.c b/drivers/hwmon/adt7462.c index c4a1784e3f2b..5929e126da63 100644 --- a/drivers/hwmon/adt7462.c +++ b/drivers/hwmon/adt7462.c @@ -202,8 +202,7 @@ static const unsigned short normal_i2c[] = { 0x58, 0x5C, I2C_CLIENT_END }; (((value) & prefix##_MASK) >> prefix##_SHIFT) struct adt7462_data { - struct device *hwmon_dev; - struct attribute_group attrs; + struct i2c_client *client; struct mutex lock; char sensors_valid; char limits_valid; @@ -681,8 +680,8 @@ static int find_trange_value(int trange) static struct adt7462_data *adt7462_update_device(struct device *dev) { - struct i2c_client *client = to_i2c_client(dev); - struct adt7462_data *data = i2c_get_clientdata(client); + struct adt7462_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; unsigned long local_jiffies = jiffies; int i; @@ -804,8 +803,8 @@ static ssize_t set_temp_min(struct device *dev, size_t count) { struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); - struct i2c_client *client = to_i2c_client(dev); - struct adt7462_data *data = i2c_get_clientdata(client); + struct adt7462_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; long temp; if (kstrtol(buf, 10, &temp) || !temp_enabled(data, attr->index)) @@ -842,8 +841,8 @@ static ssize_t set_temp_max(struct device *dev, size_t count) { struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); - struct i2c_client *client = to_i2c_client(dev); - struct adt7462_data *data = i2c_get_clientdata(client); + struct adt7462_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; long temp; if (kstrtol(buf, 10, &temp) || !temp_enabled(data, attr->index)) @@ -905,8 +904,8 @@ static ssize_t set_volt_max(struct device *dev, size_t count) { struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); - struct i2c_client *client = to_i2c_client(dev); - struct adt7462_data *data = i2c_get_clientdata(client); + struct adt7462_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; int x = voltage_multiplier(data, attr->index); long temp; @@ -947,8 +946,8 @@ static ssize_t set_volt_min(struct device *dev, size_t count) { struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); - struct i2c_client *client = to_i2c_client(dev); - struct adt7462_data *data = i2c_get_clientdata(client); + struct adt7462_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; int x = voltage_multiplier(data, attr->index); long temp; @@ -1037,8 +1036,8 @@ static ssize_t set_fan_min(struct device *dev, const char *buf, size_t count) { struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); - struct i2c_client *client = to_i2c_client(dev); - struct adt7462_data *data = i2c_get_clientdata(client); + struct adt7462_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; long temp; if (kstrtol(buf, 10, &temp) || !temp || @@ -1085,8 +1084,8 @@ static ssize_t set_force_pwm_max(struct device *dev, const char *buf, size_t count) { - struct i2c_client *client = to_i2c_client(dev); - struct adt7462_data *data = i2c_get_clientdata(client); + struct adt7462_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; long temp; u8 reg; @@ -1118,8 +1117,8 @@ static ssize_t set_pwm(struct device *dev, struct device_attribute *devattr, const char *buf, size_t count) { struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); - struct i2c_client *client = to_i2c_client(dev); - struct adt7462_data *data = i2c_get_clientdata(client); + struct adt7462_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; long temp; if (kstrtol(buf, 10, &temp)) @@ -1148,8 +1147,8 @@ static ssize_t set_pwm_max(struct device *dev, const char *buf, size_t count) { - struct i2c_client *client = to_i2c_client(dev); - struct adt7462_data *data = i2c_get_clientdata(client); + struct adt7462_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; long temp; if (kstrtol(buf, 10, &temp)) @@ -1180,8 +1179,8 @@ static ssize_t set_pwm_min(struct device *dev, size_t count) { struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); - struct i2c_client *client = to_i2c_client(dev); - struct adt7462_data *data = i2c_get_clientdata(client); + struct adt7462_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; long temp; if (kstrtol(buf, 10, &temp)) @@ -1214,8 +1213,8 @@ static ssize_t set_pwm_hyst(struct device *dev, size_t count) { struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); - struct i2c_client *client = to_i2c_client(dev); - struct adt7462_data *data = i2c_get_clientdata(client); + struct adt7462_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; long temp; if (kstrtol(buf, 10, &temp)) @@ -1259,8 +1258,8 @@ static ssize_t set_pwm_tmax(struct device *dev, { int temp; struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); - struct i2c_client *client = to_i2c_client(dev); - struct adt7462_data *data = i2c_get_clientdata(client); + struct adt7462_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; int tmin, trange_value; long trange; @@ -1300,8 +1299,8 @@ static ssize_t set_pwm_tmin(struct device *dev, size_t count) { struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); - struct i2c_client *client = to_i2c_client(dev); - struct adt7462_data *data = i2c_get_clientdata(client); + struct adt7462_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; long temp; if (kstrtol(buf, 10, &temp)) @@ -1357,8 +1356,8 @@ static ssize_t set_pwm_auto(struct device *dev, size_t count) { struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); - struct i2c_client *client = to_i2c_client(dev); - struct adt7462_data *data = i2c_get_clientdata(client); + struct adt7462_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; long temp; if (kstrtol(buf, 10, &temp)) @@ -1416,8 +1415,8 @@ static ssize_t set_pwm_auto_temp(struct device *dev, size_t count) { struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); - struct i2c_client *client = to_i2c_client(dev); - struct adt7462_data *data = i2c_get_clientdata(client); + struct adt7462_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; long temp; if (kstrtol(buf, 10, &temp)) @@ -1701,7 +1700,7 @@ static SENSOR_DEVICE_ATTR(pwm3_auto_channels_temp, S_IWUSR | S_IRUGO, static SENSOR_DEVICE_ATTR(pwm4_auto_channels_temp, S_IWUSR | S_IRUGO, show_pwm_auto_temp, set_pwm_auto_temp, 3); -static struct attribute *adt7462_attr[] = { +static struct attribute *adt7462_attrs[] = { &sensor_dev_attr_temp1_max.dev_attr.attr, &sensor_dev_attr_temp2_max.dev_attr.attr, &sensor_dev_attr_temp3_max.dev_attr.attr, @@ -1872,6 +1871,8 @@ static struct attribute *adt7462_attr[] = { NULL }; +ATTRIBUTE_GROUPS(adt7462); + /* Return 0 if detection is successful, -ENODEV otherwise */ static int adt7462_detect(struct i2c_client *client, struct i2c_board_info *info) @@ -1902,45 +1903,23 @@ static int adt7462_detect(struct i2c_client *client, static int adt7462_probe(struct i2c_client *client, const struct i2c_device_id *id) { + struct device *dev = &client->dev; struct adt7462_data *data; - int err; + struct device *hwmon_dev; - data = devm_kzalloc(&client->dev, sizeof(struct adt7462_data), - GFP_KERNEL); + data = devm_kzalloc(dev, sizeof(struct adt7462_data), GFP_KERNEL); if (!data) return -ENOMEM; - i2c_set_clientdata(client, data); + data->client = client; mutex_init(&data->lock); dev_info(&client->dev, "%s chip found\n", client->name); - /* Register sysfs hooks */ - data->attrs.attrs = adt7462_attr; - err = sysfs_create_group(&client->dev.kobj, &data->attrs); - if (err) - return err; - - data->hwmon_dev = hwmon_device_register(&client->dev); - if (IS_ERR(data->hwmon_dev)) { - err = PTR_ERR(data->hwmon_dev); - goto exit_remove; - } - - return 0; - -exit_remove: - sysfs_remove_group(&client->dev.kobj, &data->attrs); - return err; -} - -static int adt7462_remove(struct i2c_client *client) -{ - struct adt7462_data *data = i2c_get_clientdata(client); - - hwmon_device_unregister(data->hwmon_dev); - sysfs_remove_group(&client->dev.kobj, &data->attrs); - return 0; + hwmon_dev = devm_hwmon_device_register_with_groups(dev, client->name, + data, + adt7462_groups); + return PTR_ERR_OR_ZERO(hwmon_dev); } static const struct i2c_device_id adt7462_id[] = { @@ -1955,7 +1934,6 @@ static struct i2c_driver adt7462_driver = { .name = "adt7462", }, .probe = adt7462_probe, - .remove = adt7462_remove, .id_table = adt7462_id, .detect = adt7462_detect, .address_list = normal_i2c, -- cgit v1.2.3 From 9027d933a91e1430ebcd9b9fb8da538cb40284ef Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Wed, 16 Jul 2014 23:12:05 +0800 Subject: hwmon: (adt7470) Avoid forward declaration Reorder functions to avoid forward declaration. Signed-off-by: Axel Lin Signed-off-by: Guenter Roeck --- drivers/hwmon/adt7470.c | 66 ++++++++++++++++++++++--------------------------- 1 file changed, 30 insertions(+), 36 deletions(-) diff --git a/drivers/hwmon/adt7470.c b/drivers/hwmon/adt7470.c index 9ee3913850d6..7dfb1864c6e4 100644 --- a/drivers/hwmon/adt7470.c +++ b/drivers/hwmon/adt7470.c @@ -175,30 +175,6 @@ struct adt7470_data { unsigned int auto_update_interval; }; -static int adt7470_probe(struct i2c_client *client, - const struct i2c_device_id *id); -static int adt7470_detect(struct i2c_client *client, - struct i2c_board_info *info); -static int adt7470_remove(struct i2c_client *client); - -static const struct i2c_device_id adt7470_id[] = { - { "adt7470", 0 }, - { } -}; -MODULE_DEVICE_TABLE(i2c, adt7470_id); - -static struct i2c_driver adt7470_driver = { - .class = I2C_CLASS_HWMON, - .driver = { - .name = "adt7470", - }, - .probe = adt7470_probe, - .remove = adt7470_remove, - .id_table = adt7470_id, - .detect = adt7470_detect, - .address_list = normal_i2c, -}; - /* * 16-bit registers on the ADT7470 are low-byte first. The data sheet says * that the low byte must be read before the high byte. @@ -218,18 +194,6 @@ static inline int adt7470_write_word_data(struct i2c_client *client, u8 reg, || i2c_smbus_write_byte_data(client, reg + 1, value >> 8); } -static void adt7470_init_client(struct i2c_client *client) -{ - int reg = i2c_smbus_read_byte_data(client, ADT7470_REG_CFG); - - if (reg < 0) { - dev_err(&client->dev, "cannot read configuration register\n"); - } else { - /* start monitoring (and do a self-test) */ - i2c_smbus_write_byte_data(client, ADT7470_REG_CFG, reg | 3); - } -} - /* Probe for temperature sensors. Assumes lock is held */ static int adt7470_read_temperatures(struct i2c_client *client, struct adt7470_data *data) @@ -1250,6 +1214,18 @@ static int adt7470_detect(struct i2c_client *client, return 0; } +static void adt7470_init_client(struct i2c_client *client) +{ + int reg = i2c_smbus_read_byte_data(client, ADT7470_REG_CFG); + + if (reg < 0) { + dev_err(&client->dev, "cannot read configuration register\n"); + } else { + /* start monitoring (and do a self-test) */ + i2c_smbus_write_byte_data(client, ADT7470_REG_CFG, reg | 3); + } +} + static int adt7470_probe(struct i2c_client *client, const struct i2c_device_id *id) { @@ -1312,6 +1288,24 @@ static int adt7470_remove(struct i2c_client *client) return 0; } +static const struct i2c_device_id adt7470_id[] = { + { "adt7470", 0 }, + { } +}; +MODULE_DEVICE_TABLE(i2c, adt7470_id); + +static struct i2c_driver adt7470_driver = { + .class = I2C_CLASS_HWMON, + .driver = { + .name = "adt7470", + }, + .probe = adt7470_probe, + .remove = adt7470_remove, + .id_table = adt7470_id, + .detect = adt7470_detect, + .address_list = normal_i2c, +}; + module_i2c_driver(adt7470_driver); MODULE_AUTHOR("Darrick J. Wong "); -- cgit v1.2.3 From 3048577609ef09859505ff2aaf7194a924202193 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Wed, 16 Jul 2014 23:12:54 +0800 Subject: hwmon: (adt7470) Convert to devm_hwmon_device_register_with_groups Use ATTRIBUTE_GROUPS macro and devm_hwmon_device_register_with_groups() to simplify the code a bit. Signed-off-by: Axel Lin Signed-off-by: Guenter Roeck --- drivers/hwmon/adt7470.c | 97 +++++++++++++++++++++---------------------------- 1 file changed, 42 insertions(+), 55 deletions(-) diff --git a/drivers/hwmon/adt7470.c b/drivers/hwmon/adt7470.c index 7dfb1864c6e4..f5da39a68929 100644 --- a/drivers/hwmon/adt7470.c +++ b/drivers/hwmon/adt7470.c @@ -143,8 +143,7 @@ static const unsigned short normal_i2c[] = { 0x2C, 0x2E, 0x2F, I2C_CLIENT_END }; #define FAN_DATA_VALID(x) ((x) && (x) != FAN_PERIOD_INVALID) struct adt7470_data { - struct device *hwmon_dev; - struct attribute_group attrs; + struct i2c_client *client; struct mutex lock; char sensors_valid; char limits_valid; @@ -278,8 +277,8 @@ static int adt7470_update_thread(void *p) static struct adt7470_data *adt7470_update_device(struct device *dev) { - struct i2c_client *client = to_i2c_client(dev); - struct adt7470_data *data = i2c_get_clientdata(client); + struct adt7470_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; unsigned long local_jiffies = jiffies; u8 cfg; int i; @@ -409,8 +408,7 @@ static ssize_t set_auto_update_interval(struct device *dev, const char *buf, size_t count) { - struct i2c_client *client = to_i2c_client(dev); - struct adt7470_data *data = i2c_get_clientdata(client); + struct adt7470_data *data = dev_get_drvdata(dev); long temp; if (kstrtol(buf, 10, &temp)) @@ -438,8 +436,7 @@ static ssize_t set_num_temp_sensors(struct device *dev, const char *buf, size_t count) { - struct i2c_client *client = to_i2c_client(dev); - struct adt7470_data *data = i2c_get_clientdata(client); + struct adt7470_data *data = dev_get_drvdata(dev); long temp; if (kstrtol(buf, 10, &temp)) @@ -471,8 +468,8 @@ static ssize_t set_temp_min(struct device *dev, size_t count) { struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); - struct i2c_client *client = to_i2c_client(dev); - struct adt7470_data *data = i2c_get_clientdata(client); + struct adt7470_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; long temp; if (kstrtol(buf, 10, &temp)) @@ -505,8 +502,8 @@ static ssize_t set_temp_max(struct device *dev, size_t count) { struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); - struct i2c_client *client = to_i2c_client(dev); - struct adt7470_data *data = i2c_get_clientdata(client); + struct adt7470_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; long temp; if (kstrtol(buf, 10, &temp)) @@ -560,8 +557,8 @@ static ssize_t set_fan_max(struct device *dev, const char *buf, size_t count) { struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); - struct i2c_client *client = to_i2c_client(dev); - struct adt7470_data *data = i2c_get_clientdata(client); + struct adt7470_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; long temp; if (kstrtol(buf, 10, &temp) || !temp) @@ -597,8 +594,8 @@ static ssize_t set_fan_min(struct device *dev, const char *buf, size_t count) { struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); - struct i2c_client *client = to_i2c_client(dev); - struct adt7470_data *data = i2c_get_clientdata(client); + struct adt7470_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; long temp; if (kstrtol(buf, 10, &temp) || !temp) @@ -641,8 +638,8 @@ static ssize_t set_force_pwm_max(struct device *dev, const char *buf, size_t count) { - struct i2c_client *client = to_i2c_client(dev); - struct adt7470_data *data = i2c_get_clientdata(client); + struct adt7470_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; long temp; u8 reg; @@ -674,8 +671,8 @@ static ssize_t set_pwm(struct device *dev, struct device_attribute *devattr, const char *buf, size_t count) { struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); - struct i2c_client *client = to_i2c_client(dev); - struct adt7470_data *data = i2c_get_clientdata(client); + struct adt7470_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; long temp; if (kstrtol(buf, 10, &temp)) @@ -706,8 +703,8 @@ static ssize_t set_pwm_max(struct device *dev, size_t count) { struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); - struct i2c_client *client = to_i2c_client(dev); - struct adt7470_data *data = i2c_get_clientdata(client); + struct adt7470_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; long temp; if (kstrtol(buf, 10, &temp)) @@ -739,8 +736,8 @@ static ssize_t set_pwm_min(struct device *dev, size_t count) { struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); - struct i2c_client *client = to_i2c_client(dev); - struct adt7470_data *data = i2c_get_clientdata(client); + struct adt7470_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; long temp; if (kstrtol(buf, 10, &temp)) @@ -782,8 +779,8 @@ static ssize_t set_pwm_tmin(struct device *dev, size_t count) { struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); - struct i2c_client *client = to_i2c_client(dev); - struct adt7470_data *data = i2c_get_clientdata(client); + struct adt7470_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; long temp; if (kstrtol(buf, 10, &temp)) @@ -816,8 +813,8 @@ static ssize_t set_pwm_auto(struct device *dev, size_t count) { struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); - struct i2c_client *client = to_i2c_client(dev); - struct adt7470_data *data = i2c_get_clientdata(client); + struct adt7470_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; int pwm_auto_reg = ADT7470_REG_PWM_CFG(attr->index); int pwm_auto_reg_mask; long temp; @@ -877,8 +874,8 @@ static ssize_t set_pwm_auto_temp(struct device *dev, size_t count) { struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); - struct i2c_client *client = to_i2c_client(dev); - struct adt7470_data *data = i2c_get_clientdata(client); + struct adt7470_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; int pwm_auto_reg = ADT7470_REG_PWM_AUTO_TEMP(attr->index); long temp; u8 reg; @@ -1095,7 +1092,7 @@ static SENSOR_DEVICE_ATTR(pwm3_auto_channels_temp, S_IWUSR | S_IRUGO, static SENSOR_DEVICE_ATTR(pwm4_auto_channels_temp, S_IWUSR | S_IRUGO, show_pwm_auto_temp, set_pwm_auto_temp, 3); -static struct attribute *adt7470_attr[] = { +static struct attribute *adt7470_attrs[] = { &dev_attr_alarm_mask.attr, &dev_attr_num_temp_sensors.attr, &dev_attr_auto_update_interval.attr, @@ -1187,6 +1184,8 @@ static struct attribute *adt7470_attr[] = { NULL }; +ATTRIBUTE_GROUPS(adt7470); + /* Return 0 if detection is successful, -ENODEV otherwise */ static int adt7470_detect(struct i2c_client *client, struct i2c_board_info *info) @@ -1229,11 +1228,11 @@ static void adt7470_init_client(struct i2c_client *client) static int adt7470_probe(struct i2c_client *client, const struct i2c_device_id *id) { + struct device *dev = &client->dev; struct adt7470_data *data; - int err; + struct device *hwmon_dev; - data = devm_kzalloc(&client->dev, sizeof(struct adt7470_data), - GFP_KERNEL); + data = devm_kzalloc(dev, sizeof(struct adt7470_data), GFP_KERNEL); if (!data) return -ENOMEM; @@ -1241,6 +1240,7 @@ static int adt7470_probe(struct i2c_client *client, data->auto_update_interval = AUTO_UPDATE_INTERVAL; i2c_set_clientdata(client, data); + data->client = client; mutex_init(&data->lock); dev_info(&client->dev, "%s chip found\n", client->name); @@ -1249,32 +1249,21 @@ static int adt7470_probe(struct i2c_client *client, adt7470_init_client(client); /* Register sysfs hooks */ - data->attrs.attrs = adt7470_attr; - err = sysfs_create_group(&client->dev.kobj, &data->attrs); - if (err) - return err; - - data->hwmon_dev = hwmon_device_register(&client->dev); - if (IS_ERR(data->hwmon_dev)) { - err = PTR_ERR(data->hwmon_dev); - goto exit_remove; - } + hwmon_dev = devm_hwmon_device_register_with_groups(dev, client->name, + data, + adt7470_groups); + + if (IS_ERR(hwmon_dev)) + return PTR_ERR(hwmon_dev); init_completion(&data->auto_update_stop); data->auto_update = kthread_run(adt7470_update_thread, client, "%s", - dev_name(data->hwmon_dev)); + dev_name(hwmon_dev)); if (IS_ERR(data->auto_update)) { - err = PTR_ERR(data->auto_update); - goto exit_unregister; + return PTR_ERR(data->auto_update); } return 0; - -exit_unregister: - hwmon_device_unregister(data->hwmon_dev); -exit_remove: - sysfs_remove_group(&client->dev.kobj, &data->attrs); - return err; } static int adt7470_remove(struct i2c_client *client) @@ -1283,8 +1272,6 @@ static int adt7470_remove(struct i2c_client *client) kthread_stop(data->auto_update); wait_for_completion(&data->auto_update_stop); - hwmon_device_unregister(data->hwmon_dev); - sysfs_remove_group(&client->dev.kobj, &data->attrs); return 0; } -- cgit v1.2.3 From 9b38a66e1a6570b1aff2c1f892b567eded2b3b4e Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Thu, 17 Jul 2014 19:05:23 +0800 Subject: hwmon: (thmc50) Avoid forward declaration Reorder functions to avoid forward declaration. Signed-off-by: Axel Lin Signed-off-by: Guenter Roeck --- drivers/hwmon/thmc50.c | 160 +++++++++++++++++++++++-------------------------- 1 file changed, 76 insertions(+), 84 deletions(-) diff --git a/drivers/hwmon/thmc50.c b/drivers/hwmon/thmc50.c index db288db7d3e9..bb538dad479b 100644 --- a/drivers/hwmon/thmc50.c +++ b/drivers/hwmon/thmc50.c @@ -85,32 +85,47 @@ struct thmc50_data { u8 alarms; }; -static int thmc50_detect(struct i2c_client *client, - struct i2c_board_info *info); -static int thmc50_probe(struct i2c_client *client, - const struct i2c_device_id *id); -static int thmc50_remove(struct i2c_client *client); -static void thmc50_init_client(struct i2c_client *client); -static struct thmc50_data *thmc50_update_device(struct device *dev); +static struct thmc50_data *thmc50_update_device(struct device *dev) +{ + struct i2c_client *client = to_i2c_client(dev); + struct thmc50_data *data = i2c_get_clientdata(client); + int timeout = HZ / 5 + (data->type == thmc50 ? HZ : 0); -static const struct i2c_device_id thmc50_id[] = { - { "adm1022", adm1022 }, - { "thmc50", thmc50 }, - { } -}; -MODULE_DEVICE_TABLE(i2c, thmc50_id); + mutex_lock(&data->update_lock); -static struct i2c_driver thmc50_driver = { - .class = I2C_CLASS_HWMON, - .driver = { - .name = "thmc50", - }, - .probe = thmc50_probe, - .remove = thmc50_remove, - .id_table = thmc50_id, - .detect = thmc50_detect, - .address_list = normal_i2c, -}; + if (time_after(jiffies, data->last_updated + timeout) + || !data->valid) { + + int temps = data->has_temp3 ? 3 : 2; + int i; + int prog = i2c_smbus_read_byte_data(client, THMC50_REG_CONF); + + prog &= THMC50_REG_CONF_PROGRAMMED; + + for (i = 0; i < temps; i++) { + data->temp_input[i] = i2c_smbus_read_byte_data(client, + THMC50_REG_TEMP[i]); + data->temp_max[i] = i2c_smbus_read_byte_data(client, + THMC50_REG_TEMP_MAX[i]); + data->temp_min[i] = i2c_smbus_read_byte_data(client, + THMC50_REG_TEMP_MIN[i]); + data->temp_critical[i] = + i2c_smbus_read_byte_data(client, + prog ? THMC50_REG_TEMP_CRITICAL[i] + : THMC50_REG_TEMP_DEFAULT[i]); + } + data->analog_out = + i2c_smbus_read_byte_data(client, THMC50_REG_ANALOG_OUT); + data->alarms = + i2c_smbus_read_byte_data(client, THMC50_REG_INTR); + data->last_updated = jiffies; + data->valid = 1; + } + + mutex_unlock(&data->update_lock); + + return data; +} static ssize_t show_analog_out(struct device *dev, struct device_attribute *attr, char *buf) @@ -355,6 +370,26 @@ static int thmc50_detect(struct i2c_client *client, return 0; } +static void thmc50_init_client(struct i2c_client *client) +{ + struct thmc50_data *data = i2c_get_clientdata(client); + int config; + + data->analog_out = i2c_smbus_read_byte_data(client, + THMC50_REG_ANALOG_OUT); + /* set up to at least 1 */ + if (data->analog_out == 0) { + data->analog_out = 1; + i2c_smbus_write_byte_data(client, THMC50_REG_ANALOG_OUT, + data->analog_out); + } + config = i2c_smbus_read_byte_data(client, THMC50_REG_CONF); + config |= 0x1; /* start the chip if it is in standby mode */ + if (data->type == adm1022 && (config & (1 << 7))) + data->has_temp3 = 1; + i2c_smbus_write_byte_data(client, THMC50_REG_CONF, config); +} + static int thmc50_probe(struct i2c_client *client, const struct i2c_device_id *id) { @@ -413,67 +448,24 @@ static int thmc50_remove(struct i2c_client *client) return 0; } -static void thmc50_init_client(struct i2c_client *client) -{ - struct thmc50_data *data = i2c_get_clientdata(client); - int config; - - data->analog_out = i2c_smbus_read_byte_data(client, - THMC50_REG_ANALOG_OUT); - /* set up to at least 1 */ - if (data->analog_out == 0) { - data->analog_out = 1; - i2c_smbus_write_byte_data(client, THMC50_REG_ANALOG_OUT, - data->analog_out); - } - config = i2c_smbus_read_byte_data(client, THMC50_REG_CONF); - config |= 0x1; /* start the chip if it is in standby mode */ - if (data->type == adm1022 && (config & (1 << 7))) - data->has_temp3 = 1; - i2c_smbus_write_byte_data(client, THMC50_REG_CONF, config); -} - -static struct thmc50_data *thmc50_update_device(struct device *dev) -{ - struct i2c_client *client = to_i2c_client(dev); - struct thmc50_data *data = i2c_get_clientdata(client); - int timeout = HZ / 5 + (data->type == thmc50 ? HZ : 0); - - mutex_lock(&data->update_lock); - - if (time_after(jiffies, data->last_updated + timeout) - || !data->valid) { - - int temps = data->has_temp3 ? 3 : 2; - int i; - int prog = i2c_smbus_read_byte_data(client, THMC50_REG_CONF); - - prog &= THMC50_REG_CONF_PROGRAMMED; - - for (i = 0; i < temps; i++) { - data->temp_input[i] = i2c_smbus_read_byte_data(client, - THMC50_REG_TEMP[i]); - data->temp_max[i] = i2c_smbus_read_byte_data(client, - THMC50_REG_TEMP_MAX[i]); - data->temp_min[i] = i2c_smbus_read_byte_data(client, - THMC50_REG_TEMP_MIN[i]); - data->temp_critical[i] = - i2c_smbus_read_byte_data(client, - prog ? THMC50_REG_TEMP_CRITICAL[i] - : THMC50_REG_TEMP_DEFAULT[i]); - } - data->analog_out = - i2c_smbus_read_byte_data(client, THMC50_REG_ANALOG_OUT); - data->alarms = - i2c_smbus_read_byte_data(client, THMC50_REG_INTR); - data->last_updated = jiffies; - data->valid = 1; - } - - mutex_unlock(&data->update_lock); +static const struct i2c_device_id thmc50_id[] = { + { "adm1022", adm1022 }, + { "thmc50", thmc50 }, + { } +}; +MODULE_DEVICE_TABLE(i2c, thmc50_id); - return data; -} +static struct i2c_driver thmc50_driver = { + .class = I2C_CLASS_HWMON, + .driver = { + .name = "thmc50", + }, + .probe = thmc50_probe, + .remove = thmc50_remove, + .id_table = thmc50_id, + .detect = thmc50_detect, + .address_list = normal_i2c, +}; module_i2c_driver(thmc50_driver); -- cgit v1.2.3 From 86fd260e0b15d8718ab711f3fd802713e1bfbe89 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Thu, 17 Jul 2014 19:06:08 +0800 Subject: hwmon: (thmc50) Convert to devm_hwmon_device_register_with_groups Use devm_hwmon_device_register_with_groups() to simplify the code a bit. Signed-off-by: Axel Lin Signed-off-by: Guenter Roeck --- drivers/hwmon/thmc50.c | 78 ++++++++++++++++---------------------------------- 1 file changed, 25 insertions(+), 53 deletions(-) diff --git a/drivers/hwmon/thmc50.c b/drivers/hwmon/thmc50.c index bb538dad479b..6a0ee903127e 100644 --- a/drivers/hwmon/thmc50.c +++ b/drivers/hwmon/thmc50.c @@ -68,7 +68,8 @@ static const u8 THMC50_REG_TEMP_DEFAULT[] = { 0x17, 0x18, 0x18 }; /* Each client has this additional data */ struct thmc50_data { - struct device *hwmon_dev; + struct i2c_client *client; + const struct attribute_group *groups[3]; struct mutex update_lock; enum chips type; @@ -87,8 +88,8 @@ struct thmc50_data { static struct thmc50_data *thmc50_update_device(struct device *dev) { - struct i2c_client *client = to_i2c_client(dev); - struct thmc50_data *data = i2c_get_clientdata(client); + struct thmc50_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; int timeout = HZ / 5 + (data->type == thmc50 ? HZ : 0); mutex_lock(&data->update_lock); @@ -138,8 +139,8 @@ static ssize_t set_analog_out(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { - struct i2c_client *client = to_i2c_client(dev); - struct thmc50_data *data = i2c_get_clientdata(client); + struct thmc50_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; int config; unsigned long tmp; int err; @@ -192,8 +193,8 @@ static ssize_t set_temp_min(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { int nr = to_sensor_dev_attr(attr)->index; - struct i2c_client *client = to_i2c_client(dev); - struct thmc50_data *data = i2c_get_clientdata(client); + struct thmc50_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; long val; int err; @@ -221,8 +222,8 @@ static ssize_t set_temp_max(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { int nr = to_sensor_dev_attr(attr)->index; - struct i2c_client *client = to_i2c_client(dev); - struct thmc50_data *data = i2c_get_clientdata(client); + struct thmc50_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; long val; int err; @@ -370,9 +371,9 @@ static int thmc50_detect(struct i2c_client *client, return 0; } -static void thmc50_init_client(struct i2c_client *client) +static void thmc50_init_client(struct thmc50_data *data) { - struct thmc50_data *data = i2c_get_clientdata(client); + struct i2c_client *client = data->client; int config; data->analog_out = i2c_smbus_read_byte_data(client, @@ -393,59 +394,31 @@ static void thmc50_init_client(struct i2c_client *client) static int thmc50_probe(struct i2c_client *client, const struct i2c_device_id *id) { + struct device *dev = &client->dev; struct thmc50_data *data; - int err; + struct device *hwmon_dev; + int idx = 0; - data = devm_kzalloc(&client->dev, sizeof(struct thmc50_data), - GFP_KERNEL); + data = devm_kzalloc(dev, sizeof(struct thmc50_data), GFP_KERNEL); if (!data) return -ENOMEM; - i2c_set_clientdata(client, data); + data->client = client; data->type = id->driver_data; mutex_init(&data->update_lock); - thmc50_init_client(client); + thmc50_init_client(data); - /* Register sysfs hooks */ - err = sysfs_create_group(&client->dev.kobj, &thmc50_group); - if (err) - return err; - - /* Register ADM1022 sysfs hooks */ - if (data->has_temp3) { - err = sysfs_create_group(&client->dev.kobj, &temp3_group); - if (err) - goto exit_remove_sysfs_thmc50; - } - - /* Register a new directory entry with module sensors */ - data->hwmon_dev = hwmon_device_register(&client->dev); - if (IS_ERR(data->hwmon_dev)) { - err = PTR_ERR(data->hwmon_dev); - goto exit_remove_sysfs; - } + /* sysfs hooks */ + data->groups[idx++] = &thmc50_group; - return 0; - -exit_remove_sysfs: - if (data->has_temp3) - sysfs_remove_group(&client->dev.kobj, &temp3_group); -exit_remove_sysfs_thmc50: - sysfs_remove_group(&client->dev.kobj, &thmc50_group); - return err; -} - -static int thmc50_remove(struct i2c_client *client) -{ - struct thmc50_data *data = i2c_get_clientdata(client); - - hwmon_device_unregister(data->hwmon_dev); - sysfs_remove_group(&client->dev.kobj, &thmc50_group); + /* Register additional ADM1022 sysfs hooks */ if (data->has_temp3) - sysfs_remove_group(&client->dev.kobj, &temp3_group); + data->groups[idx++] = &temp3_group; - return 0; + hwmon_dev = devm_hwmon_device_register_with_groups(dev, client->name, + data, data->groups); + return PTR_ERR_OR_ZERO(hwmon_dev); } static const struct i2c_device_id thmc50_id[] = { @@ -461,7 +434,6 @@ static struct i2c_driver thmc50_driver = { .name = "thmc50", }, .probe = thmc50_probe, - .remove = thmc50_remove, .id_table = thmc50_id, .detect = thmc50_detect, .address_list = normal_i2c, -- cgit v1.2.3 From 7edc8cc19fd00edcc864e8c62a08d3946db28b4d Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Fri, 18 Jul 2014 15:56:59 +0800 Subject: hwmon: (max6639) Make normal_i2c array const Signed-off-by: Axel Lin Acked-by: Roland Stigge Signed-off-by: Guenter Roeck --- drivers/hwmon/max6639.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/hwmon/max6639.c b/drivers/hwmon/max6639.c index 70650de2cbd1..dac6d85f2fd9 100644 --- a/drivers/hwmon/max6639.c +++ b/drivers/hwmon/max6639.c @@ -35,7 +35,7 @@ #include /* Addresses to scan */ -static unsigned short normal_i2c[] = { 0x2c, 0x2e, 0x2f, I2C_CLIENT_END }; +static const unsigned short normal_i2c[] = { 0x2c, 0x2e, 0x2f, I2C_CLIENT_END }; /* The MAX6639 registers, valid channel numbers: 0, 1 */ #define MAX6639_REG_TEMP(ch) (0x00 + (ch)) -- cgit v1.2.3 From 28681d71e1b74c3b54e1d41be66b8198f8455995 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Fri, 18 Jul 2014 16:02:38 +0800 Subject: hwmon: (max1668) Make max1668_addr_list array const Signed-off-by: Axel Lin Signed-off-by: Guenter Roeck --- drivers/hwmon/max1668.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/hwmon/max1668.c b/drivers/hwmon/max1668.c index e3ed0a5b6d94..7ca889910262 100644 --- a/drivers/hwmon/max1668.c +++ b/drivers/hwmon/max1668.c @@ -30,7 +30,7 @@ #include /* Addresses to scan */ -static unsigned short max1668_addr_list[] = { +static const unsigned short max1668_addr_list[] = { 0x18, 0x19, 0x1a, 0x29, 0x2a, 0x2b, 0x4c, 0x4d, 0x4e, I2C_CLIENT_END }; /* max1668 registers */ -- cgit v1.2.3 From 94314e259333892e7b085cd343720bbdc2fa67c5 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Thu, 17 Jul 2014 19:20:53 +0800 Subject: hwmon: (smsc47m192) Avoid forward declaration Reorder functions to avoid forward declaration. Signed-off-by: Axel Lin Signed-off-by: Guenter Roeck --- drivers/hwmon/smsc47m192.c | 161 ++++++++++++++++++++++----------------------- 1 file changed, 77 insertions(+), 84 deletions(-) diff --git a/drivers/hwmon/smsc47m192.c b/drivers/hwmon/smsc47m192.c index 34b9a601ad07..fcada5db86fc 100644 --- a/drivers/hwmon/smsc47m192.c +++ b/drivers/hwmon/smsc47m192.c @@ -112,30 +112,69 @@ struct smsc47m192_data { u8 vrm; }; -static int smsc47m192_probe(struct i2c_client *client, - const struct i2c_device_id *id); -static int smsc47m192_detect(struct i2c_client *client, - struct i2c_board_info *info); -static int smsc47m192_remove(struct i2c_client *client); -static struct smsc47m192_data *smsc47m192_update_device(struct device *dev); +static struct smsc47m192_data *smsc47m192_update_device(struct device *dev) +{ + struct i2c_client *client = to_i2c_client(dev); + struct smsc47m192_data *data = i2c_get_clientdata(client); + int i, config; -static const struct i2c_device_id smsc47m192_id[] = { - { "smsc47m192", 0 }, - { } -}; -MODULE_DEVICE_TABLE(i2c, smsc47m192_id); + mutex_lock(&data->update_lock); -static struct i2c_driver smsc47m192_driver = { - .class = I2C_CLASS_HWMON, - .driver = { - .name = "smsc47m192", - }, - .probe = smsc47m192_probe, - .remove = smsc47m192_remove, - .id_table = smsc47m192_id, - .detect = smsc47m192_detect, - .address_list = normal_i2c, -}; + if (time_after(jiffies, data->last_updated + HZ + HZ / 2) + || !data->valid) { + u8 sfr = i2c_smbus_read_byte_data(client, SMSC47M192_REG_SFR); + + dev_dbg(&client->dev, "Starting smsc47m192 update\n"); + + for (i = 0; i <= 7; i++) { + data->in[i] = i2c_smbus_read_byte_data(client, + SMSC47M192_REG_IN(i)); + data->in_min[i] = i2c_smbus_read_byte_data(client, + SMSC47M192_REG_IN_MIN(i)); + data->in_max[i] = i2c_smbus_read_byte_data(client, + SMSC47M192_REG_IN_MAX(i)); + } + for (i = 0; i < 3; i++) { + data->temp[i] = i2c_smbus_read_byte_data(client, + SMSC47M192_REG_TEMP[i]); + data->temp_max[i] = i2c_smbus_read_byte_data(client, + SMSC47M192_REG_TEMP_MAX[i]); + data->temp_min[i] = i2c_smbus_read_byte_data(client, + SMSC47M192_REG_TEMP_MIN[i]); + } + for (i = 1; i < 3; i++) + data->temp_offset[i] = i2c_smbus_read_byte_data(client, + SMSC47M192_REG_TEMP_OFFSET(i)); + /* + * first offset is temp_offset[0] if SFR bit 4 is set, + * temp_offset[1] otherwise + */ + if (sfr & 0x10) { + data->temp_offset[0] = data->temp_offset[1]; + data->temp_offset[1] = 0; + } else + data->temp_offset[0] = 0; + + data->vid = i2c_smbus_read_byte_data(client, SMSC47M192_REG_VID) + & 0x0f; + config = i2c_smbus_read_byte_data(client, + SMSC47M192_REG_CONFIG); + if (config & 0x20) + data->vid |= (i2c_smbus_read_byte_data(client, + SMSC47M192_REG_VID4) & 0x01) << 4; + data->alarms = i2c_smbus_read_byte_data(client, + SMSC47M192_REG_ALARM1) | + (i2c_smbus_read_byte_data(client, + SMSC47M192_REG_ALARM2) << 8); + + data->last_updated = jiffies; + data->valid = 1; + } + + mutex_unlock(&data->update_lock); + + return data; +} /* Voltages */ static ssize_t show_in(struct device *dev, struct device_attribute *attr, @@ -607,69 +646,23 @@ static int smsc47m192_remove(struct i2c_client *client) return 0; } -static struct smsc47m192_data *smsc47m192_update_device(struct device *dev) -{ - struct i2c_client *client = to_i2c_client(dev); - struct smsc47m192_data *data = i2c_get_clientdata(client); - int i, config; - - mutex_lock(&data->update_lock); - - if (time_after(jiffies, data->last_updated + HZ + HZ / 2) - || !data->valid) { - u8 sfr = i2c_smbus_read_byte_data(client, SMSC47M192_REG_SFR); - - dev_dbg(&client->dev, "Starting smsc47m192 update\n"); - - for (i = 0; i <= 7; i++) { - data->in[i] = i2c_smbus_read_byte_data(client, - SMSC47M192_REG_IN(i)); - data->in_min[i] = i2c_smbus_read_byte_data(client, - SMSC47M192_REG_IN_MIN(i)); - data->in_max[i] = i2c_smbus_read_byte_data(client, - SMSC47M192_REG_IN_MAX(i)); - } - for (i = 0; i < 3; i++) { - data->temp[i] = i2c_smbus_read_byte_data(client, - SMSC47M192_REG_TEMP[i]); - data->temp_max[i] = i2c_smbus_read_byte_data(client, - SMSC47M192_REG_TEMP_MAX[i]); - data->temp_min[i] = i2c_smbus_read_byte_data(client, - SMSC47M192_REG_TEMP_MIN[i]); - } - for (i = 1; i < 3; i++) - data->temp_offset[i] = i2c_smbus_read_byte_data(client, - SMSC47M192_REG_TEMP_OFFSET(i)); - /* - * first offset is temp_offset[0] if SFR bit 4 is set, - * temp_offset[1] otherwise - */ - if (sfr & 0x10) { - data->temp_offset[0] = data->temp_offset[1]; - data->temp_offset[1] = 0; - } else - data->temp_offset[0] = 0; - - data->vid = i2c_smbus_read_byte_data(client, SMSC47M192_REG_VID) - & 0x0f; - config = i2c_smbus_read_byte_data(client, - SMSC47M192_REG_CONFIG); - if (config & 0x20) - data->vid |= (i2c_smbus_read_byte_data(client, - SMSC47M192_REG_VID4) & 0x01) << 4; - data->alarms = i2c_smbus_read_byte_data(client, - SMSC47M192_REG_ALARM1) | - (i2c_smbus_read_byte_data(client, - SMSC47M192_REG_ALARM2) << 8); - - data->last_updated = jiffies; - data->valid = 1; - } - - mutex_unlock(&data->update_lock); +static const struct i2c_device_id smsc47m192_id[] = { + { "smsc47m192", 0 }, + { } +}; +MODULE_DEVICE_TABLE(i2c, smsc47m192_id); - return data; -} +static struct i2c_driver smsc47m192_driver = { + .class = I2C_CLASS_HWMON, + .driver = { + .name = "smsc47m192", + }, + .probe = smsc47m192_probe, + .remove = smsc47m192_remove, + .id_table = smsc47m192_id, + .detect = smsc47m192_detect, + .address_list = normal_i2c, +}; module_i2c_driver(smsc47m192_driver); -- cgit v1.2.3 From 166f72966d69334a68774abb7eaa73eece54d464 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Thu, 17 Jul 2014 19:21:44 +0800 Subject: hwmon: (smsc47m192) Convert to devm_hwmon_device_register_with_groups Use devm_hwmon_device_register_with_groups() to simplify the code a bit. Signed-off-by: Axel Lin Signed-off-by: Guenter Roeck --- drivers/hwmon/smsc47m192.c | 77 +++++++++++++++------------------------------- 1 file changed, 25 insertions(+), 52 deletions(-) diff --git a/drivers/hwmon/smsc47m192.c b/drivers/hwmon/smsc47m192.c index fcada5db86fc..6ac7cda72d4c 100644 --- a/drivers/hwmon/smsc47m192.c +++ b/drivers/hwmon/smsc47m192.c @@ -95,7 +95,8 @@ static inline int TEMP_FROM_REG(s8 val) } struct smsc47m192_data { - struct device *hwmon_dev; + struct i2c_client *client; + const struct attribute_group *groups[3]; struct mutex update_lock; char valid; /* !=0 if following fields are valid */ unsigned long last_updated; /* In jiffies */ @@ -114,8 +115,8 @@ struct smsc47m192_data { static struct smsc47m192_data *smsc47m192_update_device(struct device *dev) { - struct i2c_client *client = to_i2c_client(dev); - struct smsc47m192_data *data = i2c_get_clientdata(client); + struct smsc47m192_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; int i, config; mutex_lock(&data->update_lock); @@ -209,8 +210,8 @@ static ssize_t set_in_min(struct device *dev, struct device_attribute *attr, { struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); int nr = sensor_attr->index; - struct i2c_client *client = to_i2c_client(dev); - struct smsc47m192_data *data = i2c_get_clientdata(client); + struct smsc47m192_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; unsigned long val; int err; @@ -231,8 +232,8 @@ static ssize_t set_in_max(struct device *dev, struct device_attribute *attr, { struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); int nr = sensor_attr->index; - struct i2c_client *client = to_i2c_client(dev); - struct smsc47m192_data *data = i2c_get_clientdata(client); + struct smsc47m192_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; unsigned long val; int err; @@ -298,8 +299,8 @@ static ssize_t set_temp_min(struct device *dev, struct device_attribute *attr, { struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); int nr = sensor_attr->index; - struct i2c_client *client = to_i2c_client(dev); - struct smsc47m192_data *data = i2c_get_clientdata(client); + struct smsc47m192_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; long val; int err; @@ -320,8 +321,8 @@ static ssize_t set_temp_max(struct device *dev, struct device_attribute *attr, { struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); int nr = sensor_attr->index; - struct i2c_client *client = to_i2c_client(dev); - struct smsc47m192_data *data = i2c_get_clientdata(client); + struct smsc47m192_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; long val; int err; @@ -351,8 +352,8 @@ static ssize_t set_temp_offset(struct device *dev, struct device_attribute { struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); int nr = sensor_attr->index; - struct i2c_client *client = to_i2c_client(dev); - struct smsc47m192_data *data = i2c_get_clientdata(client); + struct smsc47m192_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; u8 sfr = i2c_smbus_read_byte_data(client, SMSC47M192_REG_SFR); long val; int err; @@ -591,59 +592,32 @@ static int smsc47m192_detect(struct i2c_client *client, static int smsc47m192_probe(struct i2c_client *client, const struct i2c_device_id *id) { + struct device *dev = &client->dev; + struct device *hwmon_dev; struct smsc47m192_data *data; int config; - int err; - data = devm_kzalloc(&client->dev, sizeof(struct smsc47m192_data), - GFP_KERNEL); + data = devm_kzalloc(dev, sizeof(struct smsc47m192_data), GFP_KERNEL); if (!data) return -ENOMEM; - i2c_set_clientdata(client, data); + data->client = client; data->vrm = vid_which_vrm(); mutex_init(&data->update_lock); /* Initialize the SMSC47M192 chip */ smsc47m192_init_client(client); - /* Register sysfs hooks */ - err = sysfs_create_group(&client->dev.kobj, &smsc47m192_group); - if (err) - return err; - + /* sysfs hooks */ + data->groups[0] = &smsc47m192_group; /* Pin 110 is either in4 (+12V) or VID4 */ config = i2c_smbus_read_byte_data(client, SMSC47M192_REG_CONFIG); - if (!(config & 0x20)) { - err = sysfs_create_group(&client->dev.kobj, - &smsc47m192_group_in4); - if (err) - goto exit_remove_files; - } - - data->hwmon_dev = hwmon_device_register(&client->dev); - if (IS_ERR(data->hwmon_dev)) { - err = PTR_ERR(data->hwmon_dev); - goto exit_remove_files; - } + if (!(config & 0x20)) + data->groups[1] = &smsc47m192_group_in4; - return 0; - -exit_remove_files: - sysfs_remove_group(&client->dev.kobj, &smsc47m192_group); - sysfs_remove_group(&client->dev.kobj, &smsc47m192_group_in4); - return err; -} - -static int smsc47m192_remove(struct i2c_client *client) -{ - struct smsc47m192_data *data = i2c_get_clientdata(client); - - hwmon_device_unregister(data->hwmon_dev); - sysfs_remove_group(&client->dev.kobj, &smsc47m192_group); - sysfs_remove_group(&client->dev.kobj, &smsc47m192_group_in4); - - return 0; + hwmon_dev = devm_hwmon_device_register_with_groups(dev, client->name, + data, data->groups); + return PTR_ERR_OR_ZERO(hwmon_dev); } static const struct i2c_device_id smsc47m192_id[] = { @@ -658,7 +632,6 @@ static struct i2c_driver smsc47m192_driver = { .name = "smsc47m192", }, .probe = smsc47m192_probe, - .remove = smsc47m192_remove, .id_table = smsc47m192_id, .detect = smsc47m192_detect, .address_list = normal_i2c, -- cgit v1.2.3 From e70198acf84690b3d8ed5d1b924942c1dd85d20d Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Thu, 17 Jul 2014 19:15:36 +0800 Subject: hwmon: (smsc47m1) Avoid forward declaration Reorder functions to avoid forward declaration. Signed-off-by: Axel Lin Signed-off-by: Guenter Roeck --- drivers/hwmon/smsc47m1.c | 115 +++++++++++++++++++++++------------------------ 1 file changed, 55 insertions(+), 60 deletions(-) diff --git a/drivers/hwmon/smsc47m1.c b/drivers/hwmon/smsc47m1.c index 23a22c4eee51..d7485659acc5 100644 --- a/drivers/hwmon/smsc47m1.c +++ b/drivers/hwmon/smsc47m1.c @@ -142,11 +142,6 @@ struct smsc47m1_sio_data { u8 activate; /* Remember initial device state */ }; - -static int __exit smsc47m1_remove(struct platform_device *pdev); -static struct smsc47m1_data *smsc47m1_update_device(struct device *dev, - int init); - static inline int smsc47m1_read_value(struct smsc47m1_data *data, u8 reg) { return inb_p(data->addr + reg); @@ -158,13 +153,54 @@ static inline void smsc47m1_write_value(struct smsc47m1_data *data, u8 reg, outb_p(value, data->addr + reg); } -static struct platform_driver smsc47m1_driver = { - .driver = { - .owner = THIS_MODULE, - .name = DRVNAME, - }, - .remove = __exit_p(smsc47m1_remove), -}; +static struct smsc47m1_data *smsc47m1_update_device(struct device *dev, + int init) +{ + struct smsc47m1_data *data = dev_get_drvdata(dev); + + mutex_lock(&data->update_lock); + + if (time_after(jiffies, data->last_updated + HZ + HZ / 2) || init) { + int i, fan_nr; + fan_nr = data->type == smsc47m2 ? 3 : 2; + + for (i = 0; i < fan_nr; i++) { + data->fan[i] = smsc47m1_read_value(data, + SMSC47M1_REG_FAN[i]); + data->fan_preload[i] = smsc47m1_read_value(data, + SMSC47M1_REG_FAN_PRELOAD[i]); + data->pwm[i] = smsc47m1_read_value(data, + SMSC47M1_REG_PWM[i]); + } + + i = smsc47m1_read_value(data, SMSC47M1_REG_FANDIV); + data->fan_div[0] = (i >> 4) & 0x03; + data->fan_div[1] = i >> 6; + + data->alarms = smsc47m1_read_value(data, + SMSC47M1_REG_ALARM) >> 6; + /* Clear alarms if needed */ + if (data->alarms) + smsc47m1_write_value(data, SMSC47M1_REG_ALARM, 0xC0); + + if (fan_nr >= 3) { + data->fan_div[2] = (smsc47m1_read_value(data, + SMSC47M2_REG_FANDIV3) >> 4) & 0x03; + data->alarms |= (smsc47m1_read_value(data, + SMSC47M2_REG_ALARM6) & 0x40) >> 4; + /* Clear alarm if needed */ + if (data->alarms & 0x04) + smsc47m1_write_value(data, + SMSC47M2_REG_ALARM6, + 0x40); + } + + data->last_updated = jiffies; + } + + mutex_unlock(&data->update_lock); + return data; +} static ssize_t get_fan(struct device *dev, struct device_attribute *devattr, char *buf) @@ -811,54 +847,13 @@ static int __exit smsc47m1_remove(struct platform_device *pdev) return 0; } -static struct smsc47m1_data *smsc47m1_update_device(struct device *dev, - int init) -{ - struct smsc47m1_data *data = dev_get_drvdata(dev); - - mutex_lock(&data->update_lock); - - if (time_after(jiffies, data->last_updated + HZ + HZ / 2) || init) { - int i, fan_nr; - fan_nr = data->type == smsc47m2 ? 3 : 2; - - for (i = 0; i < fan_nr; i++) { - data->fan[i] = smsc47m1_read_value(data, - SMSC47M1_REG_FAN[i]); - data->fan_preload[i] = smsc47m1_read_value(data, - SMSC47M1_REG_FAN_PRELOAD[i]); - data->pwm[i] = smsc47m1_read_value(data, - SMSC47M1_REG_PWM[i]); - } - - i = smsc47m1_read_value(data, SMSC47M1_REG_FANDIV); - data->fan_div[0] = (i >> 4) & 0x03; - data->fan_div[1] = i >> 6; - - data->alarms = smsc47m1_read_value(data, - SMSC47M1_REG_ALARM) >> 6; - /* Clear alarms if needed */ - if (data->alarms) - smsc47m1_write_value(data, SMSC47M1_REG_ALARM, 0xC0); - - if (fan_nr >= 3) { - data->fan_div[2] = (smsc47m1_read_value(data, - SMSC47M2_REG_FANDIV3) >> 4) & 0x03; - data->alarms |= (smsc47m1_read_value(data, - SMSC47M2_REG_ALARM6) & 0x40) >> 4; - /* Clear alarm if needed */ - if (data->alarms & 0x04) - smsc47m1_write_value(data, - SMSC47M2_REG_ALARM6, - 0x40); - } - - data->last_updated = jiffies; - } - - mutex_unlock(&data->update_lock); - return data; -} +static struct platform_driver smsc47m1_driver = { + .driver = { + .owner = THIS_MODULE, + .name = DRVNAME, + }, + .remove = __exit_p(smsc47m1_remove), +}; static int __init smsc47m1_device_add(unsigned short address, const struct smsc47m1_sio_data *sio_data) -- cgit v1.2.3 From 9dd304f86b4b1921c0b7601b3e88a07b257fc2d2 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Sat, 19 Jul 2014 22:52:40 +0800 Subject: hwmon: (emc2103) Convert to devm_hwmon_device_register_with_groups Use devm_hwmon_device_register_with_groups() to simplify the code a bit. Signed-off-by: Axel Lin Signed-off-by: Guenter Roeck --- drivers/hwmon/emc2103.c | 89 +++++++++++++++---------------------------------- 1 file changed, 26 insertions(+), 63 deletions(-) diff --git a/drivers/hwmon/emc2103.c b/drivers/hwmon/emc2103.c index 78002de46cb6..952fe692d764 100644 --- a/drivers/hwmon/emc2103.c +++ b/drivers/hwmon/emc2103.c @@ -66,7 +66,8 @@ struct temperature { }; struct emc2103_data { - struct device *hwmon_dev; + struct i2c_client *client; + const struct attribute_group *groups[4]; struct mutex update_lock; bool valid; /* registers are valid */ bool fan_rpm_control; @@ -146,8 +147,8 @@ static void read_fan_config_from_i2c(struct i2c_client *client) static struct emc2103_data *emc2103_update_device(struct device *dev) { - struct i2c_client *client = to_i2c_client(dev); - struct emc2103_data *data = i2c_get_clientdata(client); + struct emc2103_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; mutex_lock(&data->update_lock); @@ -242,8 +243,8 @@ static ssize_t set_temp_min(struct device *dev, struct device_attribute *da, const char *buf, size_t count) { int nr = to_sensor_dev_attr(da)->index; - struct i2c_client *client = to_i2c_client(dev); - struct emc2103_data *data = i2c_get_clientdata(client); + struct emc2103_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; long val; int result = kstrtol(buf, 10, &val); @@ -264,8 +265,8 @@ static ssize_t set_temp_max(struct device *dev, struct device_attribute *da, const char *buf, size_t count) { int nr = to_sensor_dev_attr(da)->index; - struct i2c_client *client = to_i2c_client(dev); - struct emc2103_data *data = i2c_get_clientdata(client); + struct emc2103_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; long val; int result = kstrtol(buf, 10, &val); @@ -310,7 +311,7 @@ static ssize_t set_fan_div(struct device *dev, struct device_attribute *da, const char *buf, size_t count) { struct emc2103_data *data = emc2103_update_device(dev); - struct i2c_client *client = to_i2c_client(dev); + struct i2c_client *client = data->client; int new_range_bits, old_div = 8 / data->fan_multiplier; long new_div; @@ -385,7 +386,7 @@ static ssize_t set_fan_target(struct device *dev, struct device_attribute *da, const char *buf, size_t count) { struct emc2103_data *data = emc2103_update_device(dev); - struct i2c_client *client = to_i2c_client(dev); + struct i2c_client *client = data->client; unsigned long rpm_target; int result = kstrtoul(buf, 10, &rpm_target); @@ -428,8 +429,8 @@ show_pwm_enable(struct device *dev, struct device_attribute *da, char *buf) static ssize_t set_pwm_enable(struct device *dev, struct device_attribute *da, const char *buf, size_t count) { - struct i2c_client *client = to_i2c_client(dev); - struct emc2103_data *data = i2c_get_clientdata(client); + struct emc2103_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; long new_value; u8 conf_reg; @@ -580,7 +581,8 @@ static int emc2103_probe(struct i2c_client *client, const struct i2c_device_id *id) { struct emc2103_data *data; - int status; + struct device *hwmon_dev; + int status, idx = 0; if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA)) return -EIO; @@ -591,6 +593,7 @@ emc2103_probe(struct i2c_client *client, const struct i2c_device_id *id) return -ENOMEM; i2c_set_clientdata(client, data); + data->client = client; mutex_init(&data->update_lock); /* 2103-2 and 2103-4 have 3 external diodes, 2103-1 has 1 */ @@ -624,60 +627,21 @@ emc2103_probe(struct i2c_client *client, const struct i2c_device_id *id) } } - /* Register sysfs hooks */ - status = sysfs_create_group(&client->dev.kobj, &emc2103_group); - if (status) - return status; - - if (data->temp_count >= 3) { - status = sysfs_create_group(&client->dev.kobj, - &emc2103_temp3_group); - if (status) - goto exit_remove; - } - - if (data->temp_count == 4) { - status = sysfs_create_group(&client->dev.kobj, - &emc2103_temp4_group); - if (status) - goto exit_remove_temp3; - } - - data->hwmon_dev = hwmon_device_register(&client->dev); - if (IS_ERR(data->hwmon_dev)) { - status = PTR_ERR(data->hwmon_dev); - goto exit_remove_temp4; - } - - dev_info(&client->dev, "%s: sensor '%s'\n", - dev_name(data->hwmon_dev), client->name); - - return 0; - -exit_remove_temp4: - if (data->temp_count == 4) - sysfs_remove_group(&client->dev.kobj, &emc2103_temp4_group); -exit_remove_temp3: + /* sysfs hooks */ + data->groups[idx++] = &emc2103_group; if (data->temp_count >= 3) - sysfs_remove_group(&client->dev.kobj, &emc2103_temp3_group); -exit_remove: - sysfs_remove_group(&client->dev.kobj, &emc2103_group); - return status; -} - -static int emc2103_remove(struct i2c_client *client) -{ - struct emc2103_data *data = i2c_get_clientdata(client); - - hwmon_device_unregister(data->hwmon_dev); - + data->groups[idx++] = &emc2103_temp3_group; if (data->temp_count == 4) - sysfs_remove_group(&client->dev.kobj, &emc2103_temp4_group); + data->groups[idx++] = &emc2103_temp4_group; - if (data->temp_count >= 3) - sysfs_remove_group(&client->dev.kobj, &emc2103_temp3_group); + hwmon_dev = devm_hwmon_device_register_with_groups(&client->dev, + client->name, data, + data->groups); + if (IS_ERR(hwmon_dev)) + return PTR_ERR(hwmon_dev); - sysfs_remove_group(&client->dev.kobj, &emc2103_group); + dev_info(&client->dev, "%s: sensor '%s'\n", + dev_name(hwmon_dev), client->name); return 0; } @@ -717,7 +681,6 @@ static struct i2c_driver emc2103_driver = { .name = "emc2103", }, .probe = emc2103_probe, - .remove = emc2103_remove, .id_table = emc2103_ids, .detect = emc2103_detect, .address_list = normal_i2c, -- cgit v1.2.3 From 398e16db62620dd80a237c5043bec5c9335ac92c Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Sat, 19 Jul 2014 22:29:44 +0800 Subject: hwmon: (g762) Convert to hwmon_device_register_with_groups Use ATTRIBUTE_GROUPS macro and hwmon_device_register_with_groups() to simplify the code a bit. Use hwmon_device_register_with_groups rather than the device managed version to ensure g762_of_clock_disable() is called after hwmon_device_unregister(). Signed-off-by: Axel Lin Signed-off-by: Guenter Roeck --- drivers/hwmon/g762.c | 71 ++++++++++++++++++++-------------------------------- 1 file changed, 27 insertions(+), 44 deletions(-) diff --git a/drivers/hwmon/g762.c b/drivers/hwmon/g762.c index 98a8618d8fbf..7dbc8c988b59 100644 --- a/drivers/hwmon/g762.c +++ b/drivers/hwmon/g762.c @@ -128,8 +128,8 @@ enum g762_regs { G762_REG_FAN_CMD2_GEAR_MODE_1)) >> 2)) struct g762_data { - struct i2c_client *client; struct device *hwmon_dev; + struct i2c_client *client; struct clk *clk; /* update mutex */ @@ -206,8 +206,8 @@ static inline unsigned char cnt_from_rpm(u32 rpm, u32 clk_freq, u16 p, /* helper to grab and cache data, at most one time per second */ static struct g762_data *g762_update_client(struct device *dev) { - struct i2c_client *client = to_i2c_client(dev); - struct g762_data *data = i2c_get_clientdata(client); + struct g762_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; int ret = 0; mutex_lock(&data->update_lock); @@ -266,8 +266,7 @@ static struct g762_data *g762_update_client(struct device *dev) */ static int do_set_clk_freq(struct device *dev, unsigned long val) { - struct i2c_client *client = to_i2c_client(dev); - struct g762_data *data = i2c_get_clientdata(client); + struct g762_data *data = dev_get_drvdata(dev); if (val > 0xffffff) return -EINVAL; @@ -282,7 +281,6 @@ static int do_set_clk_freq(struct device *dev, unsigned long val) /* Set pwm mode. Accepts either 0 (PWM mode) or 1 (DC mode) */ static int do_set_pwm_mode(struct device *dev, unsigned long val) { - struct i2c_client *client = to_i2c_client(dev); struct g762_data *data = g762_update_client(dev); int ret; @@ -301,7 +299,7 @@ static int do_set_pwm_mode(struct device *dev, unsigned long val) ret = -EINVAL; goto out; } - ret = i2c_smbus_write_byte_data(client, G762_REG_FAN_CMD1, + ret = i2c_smbus_write_byte_data(data->client, G762_REG_FAN_CMD1, data->fan_cmd1); data->valid = false; out: @@ -313,7 +311,6 @@ static int do_set_pwm_mode(struct device *dev, unsigned long val) /* Set fan clock divisor. Accepts either 1, 2, 4 or 8. */ static int do_set_fan_div(struct device *dev, unsigned long val) { - struct i2c_client *client = to_i2c_client(dev); struct g762_data *data = g762_update_client(dev); int ret; @@ -342,7 +339,7 @@ static int do_set_fan_div(struct device *dev, unsigned long val) ret = -EINVAL; goto out; } - ret = i2c_smbus_write_byte_data(client, G762_REG_FAN_CMD1, + ret = i2c_smbus_write_byte_data(data->client, G762_REG_FAN_CMD1, data->fan_cmd1); data->valid = false; out: @@ -354,7 +351,6 @@ static int do_set_fan_div(struct device *dev, unsigned long val) /* Set fan gear mode. Accepts either 0, 1 or 2. */ static int do_set_fan_gear_mode(struct device *dev, unsigned long val) { - struct i2c_client *client = to_i2c_client(dev); struct g762_data *data = g762_update_client(dev); int ret; @@ -379,7 +375,7 @@ static int do_set_fan_gear_mode(struct device *dev, unsigned long val) ret = -EINVAL; goto out; } - ret = i2c_smbus_write_byte_data(client, G762_REG_FAN_CMD2, + ret = i2c_smbus_write_byte_data(data->client, G762_REG_FAN_CMD2, data->fan_cmd2); data->valid = false; out: @@ -391,7 +387,6 @@ static int do_set_fan_gear_mode(struct device *dev, unsigned long val) /* Set number of fan pulses per revolution. Accepts either 2 or 4. */ static int do_set_fan_pulses(struct device *dev, unsigned long val) { - struct i2c_client *client = to_i2c_client(dev); struct g762_data *data = g762_update_client(dev); int ret; @@ -410,7 +405,7 @@ static int do_set_fan_pulses(struct device *dev, unsigned long val) ret = -EINVAL; goto out; } - ret = i2c_smbus_write_byte_data(client, G762_REG_FAN_CMD1, + ret = i2c_smbus_write_byte_data(data->client, G762_REG_FAN_CMD1, data->fan_cmd1); data->valid = false; out: @@ -422,7 +417,6 @@ static int do_set_fan_pulses(struct device *dev, unsigned long val) /* Set fan mode. Accepts either 1 (open-loop) or 2 (closed-loop). */ static int do_set_pwm_enable(struct device *dev, unsigned long val) { - struct i2c_client *client = to_i2c_client(dev); struct g762_data *data = g762_update_client(dev); int ret; @@ -444,15 +438,15 @@ static int do_set_pwm_enable(struct device *dev, unsigned long val) * value of 254 if it is 255 when switching to open-loop. */ if (data->set_cnt == 0xff) - i2c_smbus_write_byte_data(client, G762_REG_SET_CNT, - 254); + i2c_smbus_write_byte_data(data->client, + G762_REG_SET_CNT, 254); break; default: ret = -EINVAL; goto out; } - ret = i2c_smbus_write_byte_data(client, G762_REG_FAN_CMD1, + ret = i2c_smbus_write_byte_data(data->client, G762_REG_FAN_CMD1, data->fan_cmd1); data->valid = false; out: @@ -464,7 +458,6 @@ static int do_set_pwm_enable(struct device *dev, unsigned long val) /* Set PWM polarity. Accepts either 0 (positive duty) or 1 (negative duty) */ static int do_set_pwm_polarity(struct device *dev, unsigned long val) { - struct i2c_client *client = to_i2c_client(dev); struct g762_data *data = g762_update_client(dev); int ret; @@ -483,7 +476,7 @@ static int do_set_pwm_polarity(struct device *dev, unsigned long val) ret = -EINVAL; goto out; } - ret = i2c_smbus_write_byte_data(client, G762_REG_FAN_CMD1, + ret = i2c_smbus_write_byte_data(data->client, G762_REG_FAN_CMD1, data->fan_cmd1); data->valid = false; out: @@ -498,8 +491,8 @@ static int do_set_pwm_polarity(struct device *dev, unsigned long val) */ static int do_set_pwm(struct device *dev, unsigned long val) { - struct i2c_client *client = to_i2c_client(dev); - struct g762_data *data = i2c_get_clientdata(client); + struct g762_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; int ret; if (val > 255) @@ -519,7 +512,6 @@ static int do_set_pwm(struct device *dev, unsigned long val) */ static int do_set_fan_target(struct device *dev, unsigned long val) { - struct i2c_client *client = to_i2c_client(dev); struct g762_data *data = g762_update_client(dev); int ret; @@ -531,7 +523,7 @@ static int do_set_fan_target(struct device *dev, unsigned long val) G762_PULSE_FROM_REG(data->fan_cmd1), G762_CLKDIV_FROM_REG(data->fan_cmd1), G762_GEARMULT_FROM_REG(data->fan_cmd2)); - ret = i2c_smbus_write_byte_data(client, G762_REG_SET_CNT, + ret = i2c_smbus_write_byte_data(data->client, G762_REG_SET_CNT, data->set_cnt); data->valid = false; mutex_unlock(&data->update_lock); @@ -542,7 +534,6 @@ static int do_set_fan_target(struct device *dev, unsigned long val) /* Set fan startup voltage. Accepted values are either 0, 1, 2 or 3. */ static int do_set_fan_startv(struct device *dev, unsigned long val) { - struct i2c_client *client = to_i2c_client(dev); struct g762_data *data = g762_update_client(dev); int ret; @@ -571,7 +562,7 @@ static int do_set_fan_startv(struct device *dev, unsigned long val) ret = -EINVAL; goto out; } - ret = i2c_smbus_write_byte_data(client, G762_REG_FAN_CMD2, + ret = i2c_smbus_write_byte_data(data->client, G762_REG_FAN_CMD2, data->fan_cmd2); data->valid = false; out: @@ -1026,7 +1017,7 @@ static DEVICE_ATTR(fan1_pulses, S_IWUSR | S_IRUGO, get_fan_pulses, set_fan_pulses); /* Driver data */ -static struct attribute *g762_attributes[] = { +static struct attribute *g762_attrs[] = { &dev_attr_fan1_input.attr, &dev_attr_fan1_alarm.attr, &dev_attr_fan1_fault.attr, @@ -1039,9 +1030,7 @@ static struct attribute *g762_attributes[] = { NULL }; -static const struct attribute_group g762_group = { - .attrs = g762_attributes, -}; +ATTRIBUTE_GROUPS(g762); /* * Enable both fan failure detection and fan out of control protection. The @@ -1050,7 +1039,6 @@ static const struct attribute_group g762_group = { */ static inline int g762_fan_init(struct device *dev) { - struct i2c_client *client = to_i2c_client(dev); struct g762_data *data = g762_update_client(dev); if (IS_ERR(data)) @@ -1060,12 +1048,13 @@ static inline int g762_fan_init(struct device *dev) data->fan_cmd1 |= G762_REG_FAN_CMD1_DET_FAN_OOC; data->valid = false; - return i2c_smbus_write_byte_data(client, G762_REG_FAN_CMD1, + return i2c_smbus_write_byte_data(data->client, G762_REG_FAN_CMD1, data->fan_cmd1); } static int g762_probe(struct i2c_client *client, const struct i2c_device_id *id) { + struct device *dev = &client->dev; struct g762_data *data; int ret; @@ -1073,7 +1062,7 @@ static int g762_probe(struct i2c_client *client, const struct i2c_device_id *id) I2C_FUNC_SMBUS_BYTE_DATA)) return -ENODEV; - data = devm_kzalloc(&client->dev, sizeof(struct g762_data), GFP_KERNEL); + data = devm_kzalloc(dev, sizeof(struct g762_data), GFP_KERNEL); if (!data) return -ENOMEM; @@ -1082,7 +1071,7 @@ static int g762_probe(struct i2c_client *client, const struct i2c_device_id *id) mutex_init(&data->update_lock); /* Enable fan failure detection and fan out of control protection */ - ret = g762_fan_init(&client->dev); + ret = g762_fan_init(dev); if (ret) return ret; @@ -1098,22 +1087,17 @@ static int g762_probe(struct i2c_client *client, const struct i2c_device_id *id) if (ret) goto clock_dis; - /* Register sysfs hooks */ - ret = sysfs_create_group(&client->dev.kobj, &g762_group); - if (ret) - goto clock_dis; - - data->hwmon_dev = hwmon_device_register(&client->dev); + data->hwmon_dev = devm_hwmon_device_register_with_groups(dev, + client->name, + data, + g762_groups); if (IS_ERR(data->hwmon_dev)) { ret = PTR_ERR(data->hwmon_dev); - goto sysfs_rem; + goto clock_dis; } return 0; - sysfs_rem: - sysfs_remove_group(&client->dev.kobj, &g762_group); - clock_dis: g762_of_clock_disable(client); @@ -1125,7 +1109,6 @@ static int g762_remove(struct i2c_client *client) struct g762_data *data = i2c_get_clientdata(client); hwmon_device_unregister(data->hwmon_dev); - sysfs_remove_group(&client->dev.kobj, &g762_group); g762_of_clock_disable(client); return 0; -- cgit v1.2.3 From eac83cd9dca6ba2e5a8ba8b823daf8fdbbeae109 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Sat, 19 Jul 2014 22:42:33 +0800 Subject: hwmon: (adt7411) Convert to devm_hwmon_device_register_with_groups Use ATTRIBUTE_GROUPS macro and devm_hwmon_device_register_with_groups() to simplify the code a bit. Signed-off-by: Axel Lin Signed-off-by: Guenter Roeck --- drivers/hwmon/adt7411.c | 59 +++++++++++++++++-------------------------------- 1 file changed, 20 insertions(+), 39 deletions(-) diff --git a/drivers/hwmon/adt7411.c b/drivers/hwmon/adt7411.c index d9299dee37d1..827c03703128 100644 --- a/drivers/hwmon/adt7411.c +++ b/drivers/hwmon/adt7411.c @@ -51,7 +51,7 @@ struct adt7411_data { struct mutex update_lock; unsigned long next_update; int vref_cached; - struct device *hwmon_dev; + struct i2c_client *client; }; /* @@ -111,7 +111,8 @@ static int adt7411_modify_bit(struct i2c_client *client, u8 reg, u8 bit, static ssize_t adt7411_show_vdd(struct device *dev, struct device_attribute *attr, char *buf) { - struct i2c_client *client = to_i2c_client(dev); + struct adt7411_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; int ret = adt7411_read_10_bit(client, ADT7411_REG_INT_TEMP_VDD_LSB, ADT7411_REG_VDD_MSB, 2); @@ -121,7 +122,8 @@ static ssize_t adt7411_show_vdd(struct device *dev, static ssize_t adt7411_show_temp(struct device *dev, struct device_attribute *attr, char *buf) { - struct i2c_client *client = to_i2c_client(dev); + struct adt7411_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; int val = adt7411_read_10_bit(client, ADT7411_REG_INT_TEMP_VDD_LSB, ADT7411_REG_INT_TEMP_MSB, 0); @@ -137,8 +139,8 @@ static ssize_t adt7411_show_input(struct device *dev, struct device_attribute *attr, char *buf) { int nr = to_sensor_dev_attr(attr)->index; - struct i2c_client *client = to_i2c_client(dev); - struct adt7411_data *data = i2c_get_clientdata(client); + struct adt7411_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; int val; u8 lsb_reg, lsb_shift; @@ -180,7 +182,8 @@ static ssize_t adt7411_show_bit(struct device *dev, struct device_attribute *attr, char *buf) { struct sensor_device_attribute_2 *attr2 = to_sensor_dev_attr_2(attr); - struct i2c_client *client = to_i2c_client(dev); + struct adt7411_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; int ret = i2c_smbus_read_byte_data(client, attr2->index); return ret < 0 ? ret : sprintf(buf, "%u\n", !!(ret & attr2->nr)); @@ -191,8 +194,8 @@ static ssize_t adt7411_set_bit(struct device *dev, size_t count) { struct sensor_device_attribute_2 *s_attr2 = to_sensor_dev_attr_2(attr); - struct i2c_client *client = to_i2c_client(dev); - struct adt7411_data *data = i2c_get_clientdata(client); + struct adt7411_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; int ret; unsigned long flag; @@ -245,9 +248,7 @@ static struct attribute *adt7411_attrs[] = { NULL }; -static const struct attribute_group adt7411_attr_grp = { - .attrs = adt7411_attrs, -}; +ATTRIBUTE_GROUPS(adt7411); static int adt7411_detect(struct i2c_client *client, struct i2c_board_info *info) @@ -281,14 +282,17 @@ static int adt7411_detect(struct i2c_client *client, static int adt7411_probe(struct i2c_client *client, const struct i2c_device_id *id) { + struct device *dev = &client->dev; struct adt7411_data *data; + struct device *hwmon_dev; int ret; - data = devm_kzalloc(&client->dev, sizeof(*data), GFP_KERNEL); + data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL); if (!data) return -ENOMEM; i2c_set_clientdata(client, data); + data->client = client; mutex_init(&data->device_lock); mutex_init(&data->update_lock); @@ -300,32 +304,10 @@ static int adt7411_probe(struct i2c_client *client, /* force update on first occasion */ data->next_update = jiffies; - ret = sysfs_create_group(&client->dev.kobj, &adt7411_attr_grp); - if (ret) - return ret; - - data->hwmon_dev = hwmon_device_register(&client->dev); - if (IS_ERR(data->hwmon_dev)) { - ret = PTR_ERR(data->hwmon_dev); - goto exit_remove; - } - - dev_info(&client->dev, "successfully registered\n"); - - return 0; - - exit_remove: - sysfs_remove_group(&client->dev.kobj, &adt7411_attr_grp); - return ret; -} - -static int adt7411_remove(struct i2c_client *client) -{ - struct adt7411_data *data = i2c_get_clientdata(client); - - hwmon_device_unregister(data->hwmon_dev); - sysfs_remove_group(&client->dev.kobj, &adt7411_attr_grp); - return 0; + hwmon_dev = devm_hwmon_device_register_with_groups(dev, client->name, + data, + adt7411_groups); + return PTR_ERR_OR_ZERO(hwmon_dev); } static const struct i2c_device_id adt7411_id[] = { @@ -339,7 +321,6 @@ static struct i2c_driver adt7411_driver = { .name = "adt7411", }, .probe = adt7411_probe, - .remove = adt7411_remove, .id_table = adt7411_id, .detect = adt7411_detect, .address_list = normal_i2c, -- cgit v1.2.3 From 78313b9542b28474bd2a8e059c4fb6b690df8db2 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Thu, 24 Jul 2014 08:58:24 +0800 Subject: hwmon: (nct6775) Update module description and Kconfig for NCT6106D and NCT6791D This driver also supports NCT6106D and NCT6791D, thus update module description and Kconfig accordingly. Signed-off-by: Axel Lin Signed-off-by: Guenter Roeck --- drivers/hwmon/Kconfig | 4 ++-- drivers/hwmon/nct6775.c | 2 +- 2 files changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/hwmon/Kconfig b/drivers/hwmon/Kconfig index b93ab97732c0..6b904fbbf488 100644 --- a/drivers/hwmon/Kconfig +++ b/drivers/hwmon/Kconfig @@ -1105,8 +1105,8 @@ config SENSORS_NCT6775 select HWMON_VID help If you say yes here you get support for the hardware monitoring - functionality of the Nuvoton NCT6775F, NCT6776F, NCT6779D - and compatible Super-I/O chips. This driver replaces the + functionality of the Nuvoton NCT6106D, NCT6775F, NCT6776F, NCT6779D, + NCT6791D and compatible Super-I/O chips. This driver replaces the w83627ehf driver for NCT6775F and NCT6776F. This driver can also be built as a module. If so, the module diff --git a/drivers/hwmon/nct6775.c b/drivers/hwmon/nct6775.c index 59d9a3fc96b7..1c9865593177 100644 --- a/drivers/hwmon/nct6775.c +++ b/drivers/hwmon/nct6775.c @@ -4221,7 +4221,7 @@ static void __exit sensors_nct6775_exit(void) } MODULE_AUTHOR("Guenter Roeck "); -MODULE_DESCRIPTION("NCT6775F/NCT6776F/NCT6779D driver"); +MODULE_DESCRIPTION("NCT6106D/NCT6775F/NCT6776F/NCT6779D/NCT6791D driver"); MODULE_LICENSE("GPL"); module_init(sensors_nct6775_init); -- cgit v1.2.3 From 55bdee69cda055a5df2e0499a7c8fa1915eaf8d5 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Thu, 24 Jul 2014 08:59:34 +0800 Subject: hwmon: (nct6775) Remove num_attr_groups from struct nct6775_data num_attr_groups is only used in nct6775_probe(), make it to be local variable. Signed-off-by: Axel Lin Signed-off-by: Guenter Roeck --- drivers/hwmon/nct6775.c | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) diff --git a/drivers/hwmon/nct6775.c b/drivers/hwmon/nct6775.c index 1c9865593177..504cbddbdd90 100644 --- a/drivers/hwmon/nct6775.c +++ b/drivers/hwmon/nct6775.c @@ -735,7 +735,6 @@ struct nct6775_data { enum kinds kind; const char *name; - int num_attr_groups; const struct attribute_group *groups[6]; u16 reg_temp[5][NUM_TEMP]; /* 0=temp, 1=temp_over, 2=temp_hyst, @@ -3276,6 +3275,7 @@ static int nct6775_probe(struct platform_device *pdev) u8 cr2a; struct attribute_group *group; struct device *hwmon_dev; + int num_attr_groups = 0; res = platform_get_resource(pdev, IORESOURCE_IO, 0); if (!devm_request_region(&pdev->dev, res->start, IOREGION_LENGTH, @@ -3907,29 +3907,29 @@ static int nct6775_probe(struct platform_device *pdev) if (IS_ERR(group)) return PTR_ERR(group); - data->groups[data->num_attr_groups++] = group; + data->groups[num_attr_groups++] = group; group = nct6775_create_attr_group(dev, &nct6775_in_template_group, fls(data->have_in)); if (IS_ERR(group)) return PTR_ERR(group); - data->groups[data->num_attr_groups++] = group; + data->groups[num_attr_groups++] = group; group = nct6775_create_attr_group(dev, &nct6775_fan_template_group, fls(data->has_fan)); if (IS_ERR(group)) return PTR_ERR(group); - data->groups[data->num_attr_groups++] = group; + data->groups[num_attr_groups++] = group; group = nct6775_create_attr_group(dev, &nct6775_temp_template_group, fls(data->have_temp)); if (IS_ERR(group)) return PTR_ERR(group); - data->groups[data->num_attr_groups++] = group; - data->groups[data->num_attr_groups++] = &nct6775_group_other; + data->groups[num_attr_groups++] = group; + data->groups[num_attr_groups++] = &nct6775_group_other; hwmon_dev = devm_hwmon_device_register_with_groups(dev, data->name, data, data->groups); -- cgit v1.2.3 From 4e8e75f6a4c977e2e9caffa3ceab0f7e559cb825 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Fri, 25 Jul 2014 11:12:26 +0800 Subject: hwmon: (pwm-fan) Remove duplicate dev_set_drvdata call The dev_set_drvdata() call is equivalent to the platform_set_drvdata() call in next line. Signed-off-by: Axel Lin Signed-off-by: Guenter Roeck --- drivers/hwmon/pwm-fan.c | 1 - 1 file changed, 1 deletion(-) diff --git a/drivers/hwmon/pwm-fan.c b/drivers/hwmon/pwm-fan.c index af30dd63de6a..823c877a1ec0 100644 --- a/drivers/hwmon/pwm-fan.c +++ b/drivers/hwmon/pwm-fan.c @@ -110,7 +110,6 @@ static int pwm_fan_probe(struct platform_device *pdev) return PTR_ERR(ctx->pwm); } - dev_set_drvdata(&pdev->dev, ctx); platform_set_drvdata(pdev, ctx); /* Set duty cycle to maximum allowed */ -- cgit v1.2.3 From dbd1db7d42c053f2f937dc52c5644e105043b082 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Fri, 25 Jul 2014 22:19:35 +0800 Subject: hwmon: (pwm-fan) Make SENSORS_PWM_FAN depend on OF This driver won't instantiate if OF is not configured, thus add OF dependency. Also add COMPILE_TEST to increase build testing coverage. Signed-off-by: Axel Lin Reviewed-by: Jean Delvare Signed-off-by: Guenter Roeck --- drivers/hwmon/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/hwmon/Kconfig b/drivers/hwmon/Kconfig index 6b904fbbf488..f00d048aa583 100644 --- a/drivers/hwmon/Kconfig +++ b/drivers/hwmon/Kconfig @@ -1130,7 +1130,7 @@ source drivers/hwmon/pmbus/Kconfig config SENSORS_PWM_FAN tristate "PWM fan" - depends on PWM + depends on (PWM && OF) || COMPILE_TEST help If you say yes here you get support for fans connected to PWM lines. The driver uses the generic PWM interface, thus it will work on a -- cgit v1.2.3 From 8de2dcc9a1355f83885d34888b7e6549d9ea6d92 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Tue, 29 Jul 2014 23:06:22 +0800 Subject: hwmon: (max6697) Use of_property_read_bool at appropriate places This slightly improves readability. Signed-off-by: Axel Lin Signed-off-by: Guenter Roeck --- drivers/hwmon/max6697.c | 16 +++++++--------- 1 file changed, 7 insertions(+), 9 deletions(-) diff --git a/drivers/hwmon/max6697.c b/drivers/hwmon/max6697.c index 7fd3eaf817f4..f03a71722849 100644 --- a/drivers/hwmon/max6697.c +++ b/drivers/hwmon/max6697.c @@ -495,15 +495,13 @@ static void max6697_get_config_of(struct device_node *node, int len; const __be32 *prop; - prop = of_get_property(node, "smbus-timeout-disable", &len); - if (prop) - pdata->smbus_timeout_disable = true; - prop = of_get_property(node, "extended-range-enable", &len); - if (prop) - pdata->extended_range_enable = true; - prop = of_get_property(node, "beta-compensation-enable", &len); - if (prop) - pdata->beta_compensation = true; + pdata->smbus_timeout_disable = + of_property_read_bool(node, "smbus-timeout-disable"); + pdata->extended_range_enable = + of_property_read_bool(node, "extended-range-enable"); + pdata->beta_compensation = + of_property_read_bool(node, "beta-compensation-enable"); + prop = of_get_property(node, "alert-mask", &len); if (prop && len == sizeof(u32)) pdata->alert_mask = be32_to_cpu(prop[0]); -- cgit v1.2.3 From 8eb406100c9da01ebe983702aae6d479c882d5cb Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Wed, 23 Jul 2014 12:39:21 +0800 Subject: hwmon: (lm78) Convert to devm_hwmon_device_register_with_groups Use ATTRIBUTE_GROUPS macro and devm_hwmon_device_register_with_groups() to simplify the code a bit. Signed-off-by: Axel Lin Signed-off-by: Guenter Roeck --- drivers/hwmon/lm78.c | 98 ++++++++-------------------------------------------- 1 file changed, 15 insertions(+), 83 deletions(-) diff --git a/drivers/hwmon/lm78.c b/drivers/hwmon/lm78.c index c1eb464f0fd0..759661c7d480 100644 --- a/drivers/hwmon/lm78.c +++ b/drivers/hwmon/lm78.c @@ -123,7 +123,6 @@ static inline int TEMP_FROM_REG(s8 val) struct lm78_data { struct i2c_client *client; - struct device *hwmon_dev; struct mutex lock; enum chips type; @@ -468,7 +467,7 @@ static SENSOR_DEVICE_ATTR(fan2_alarm, S_IRUGO, show_alarm, NULL, 7); static SENSOR_DEVICE_ATTR(fan3_alarm, S_IRUGO, show_alarm, NULL, 11); static SENSOR_DEVICE_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL, 4); -static struct attribute *lm78_attributes[] = { +static struct attribute *lm78_attrs[] = { &sensor_dev_attr_in0_input.dev_attr.attr, &sensor_dev_attr_in0_min.dev_attr.attr, &sensor_dev_attr_in0_max.dev_attr.attr, @@ -519,9 +518,7 @@ static struct attribute *lm78_attributes[] = { NULL }; -static const struct attribute_group lm78_group = { - .attrs = lm78_attributes, -}; +ATTRIBUTE_GROUPS(lm78); /* * ISA related code @@ -533,19 +530,6 @@ static struct platform_device *pdev; static unsigned short isa_address = 0x290; -/* - * I2C devices get this name attribute automatically, but for ISA devices - * we must create it by ourselves. - */ -static ssize_t show_name(struct device *dev, struct device_attribute - *devattr, char *buf) -{ - struct lm78_data *data = dev_get_drvdata(dev); - - return sprintf(buf, "%s\n", data->name); -} -static DEVICE_ATTR(name, S_IRUGO, show_name, NULL); - static struct lm78_data *lm78_data_if_isa(void) { return pdev ? platform_get_drvdata(pdev) : NULL; @@ -661,46 +645,23 @@ static int lm78_i2c_detect(struct i2c_client *client, static int lm78_i2c_probe(struct i2c_client *client, const struct i2c_device_id *id) { + struct device *dev = &client->dev; + struct device *hwmon_dev; struct lm78_data *data; - int err; - data = devm_kzalloc(&client->dev, sizeof(struct lm78_data), GFP_KERNEL); + data = devm_kzalloc(dev, sizeof(struct lm78_data), GFP_KERNEL); if (!data) return -ENOMEM; - i2c_set_clientdata(client, data); data->client = client; data->type = id->driver_data; /* Initialize the LM78 chip */ lm78_init_device(data); - /* Register sysfs hooks */ - err = sysfs_create_group(&client->dev.kobj, &lm78_group); - if (err) - return err; - - data->hwmon_dev = hwmon_device_register(&client->dev); - if (IS_ERR(data->hwmon_dev)) { - err = PTR_ERR(data->hwmon_dev); - goto error; - } - - return 0; - -error: - sysfs_remove_group(&client->dev.kobj, &lm78_group); - return err; -} - -static int lm78_i2c_remove(struct i2c_client *client) -{ - struct lm78_data *data = i2c_get_clientdata(client); - - hwmon_device_unregister(data->hwmon_dev); - sysfs_remove_group(&client->dev.kobj, &lm78_group); - - return 0; + hwmon_dev = devm_hwmon_device_register_with_groups(dev, client->name, + data, lm78_groups); + return PTR_ERR_OR_ZERO(hwmon_dev); } static const struct i2c_device_id lm78_i2c_id[] = { @@ -716,7 +677,6 @@ static struct i2c_driver lm78_driver = { .name = "lm78", }, .probe = lm78_i2c_probe, - .remove = lm78_i2c_remove, .id_table = lm78_i2c_id, .detect = lm78_i2c_detect, .address_list = normal_i2c, @@ -839,17 +799,18 @@ static struct lm78_data *lm78_update_device(struct device *dev) #ifdef CONFIG_ISA static int lm78_isa_probe(struct platform_device *pdev) { - int err; + struct device *dev = &pdev->dev; + struct device *hwmon_dev; struct lm78_data *data; struct resource *res; /* Reserve the ISA region */ res = platform_get_resource(pdev, IORESOURCE_IO, 0); - if (!devm_request_region(&pdev->dev, res->start + LM78_ADDR_REG_OFFSET, + if (!devm_request_region(dev, res->start + LM78_ADDR_REG_OFFSET, 2, "lm78")) return -EBUSY; - data = devm_kzalloc(&pdev->dev, sizeof(struct lm78_data), GFP_KERNEL); + data = devm_kzalloc(dev, sizeof(struct lm78_data), GFP_KERNEL); if (!data) return -ENOMEM; @@ -868,37 +829,9 @@ static int lm78_isa_probe(struct platform_device *pdev) /* Initialize the LM78 chip */ lm78_init_device(data); - /* Register sysfs hooks */ - err = sysfs_create_group(&pdev->dev.kobj, &lm78_group); - if (err) - goto exit_remove_files; - err = device_create_file(&pdev->dev, &dev_attr_name); - if (err) - goto exit_remove_files; - - data->hwmon_dev = hwmon_device_register(&pdev->dev); - if (IS_ERR(data->hwmon_dev)) { - err = PTR_ERR(data->hwmon_dev); - goto exit_remove_files; - } - - return 0; - - exit_remove_files: - sysfs_remove_group(&pdev->dev.kobj, &lm78_group); - device_remove_file(&pdev->dev, &dev_attr_name); - return err; -} - -static int lm78_isa_remove(struct platform_device *pdev) -{ - struct lm78_data *data = platform_get_drvdata(pdev); - - hwmon_device_unregister(data->hwmon_dev); - sysfs_remove_group(&pdev->dev.kobj, &lm78_group); - device_remove_file(&pdev->dev, &dev_attr_name); - - return 0; + hwmon_dev = devm_hwmon_device_register_with_groups(dev, data->name, + data, lm78_groups); + return PTR_ERR_OR_ZERO(hwmon_dev); } static struct platform_driver lm78_isa_driver = { @@ -907,7 +840,6 @@ static struct platform_driver lm78_isa_driver = { .name = "lm78", }, .probe = lm78_isa_probe, - .remove = lm78_isa_remove, }; /* return 1 if a supported chip is found, 0 otherwise */ -- cgit v1.2.3 From 6fd5dd58371fb3cad5aedf64e30bef3ca54b3d6c Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Wed, 23 Jul 2014 12:27:39 +0800 Subject: hwmon: (lm85) Avoid forward declaration Reorder functions to avoid forward declaration. Signed-off-by: Axel Lin Signed-off-by: Guenter Roeck --- drivers/hwmon/lm85.c | 513 +++++++++++++++++++++++++-------------------------- 1 file changed, 250 insertions(+), 263 deletions(-) diff --git a/drivers/hwmon/lm85.c b/drivers/hwmon/lm85.c index ef627ea71cc8..9fdf1c021007 100644 --- a/drivers/hwmon/lm85.c +++ b/drivers/hwmon/lm85.c @@ -121,7 +121,6 @@ enum chips { #define EMC6D102_REG_EXTEND_ADC3 0x87 #define EMC6D102_REG_EXTEND_ADC4 0x88 - /* * Conversions. Rounding and limit checking is only done on the TO_REG * variants. Note that you should be a bit careful with which arguments @@ -334,44 +333,235 @@ struct lm85_data { struct lm85_zone zone[3]; }; -static int lm85_detect(struct i2c_client *client, struct i2c_board_info *info); -static int lm85_probe(struct i2c_client *client, - const struct i2c_device_id *id); -static int lm85_remove(struct i2c_client *client); +static int lm85_read_value(struct i2c_client *client, u8 reg) +{ + int res; -static int lm85_read_value(struct i2c_client *client, u8 reg); -static void lm85_write_value(struct i2c_client *client, u8 reg, int value); -static struct lm85_data *lm85_update_device(struct device *dev); + /* What size location is it? */ + switch (reg) { + case LM85_REG_FAN(0): /* Read WORD data */ + case LM85_REG_FAN(1): + case LM85_REG_FAN(2): + case LM85_REG_FAN(3): + case LM85_REG_FAN_MIN(0): + case LM85_REG_FAN_MIN(1): + case LM85_REG_FAN_MIN(2): + case LM85_REG_FAN_MIN(3): + case LM85_REG_ALARM1: /* Read both bytes at once */ + res = i2c_smbus_read_byte_data(client, reg) & 0xff; + res |= i2c_smbus_read_byte_data(client, reg + 1) << 8; + break; + default: /* Read BYTE data */ + res = i2c_smbus_read_byte_data(client, reg); + break; + } + return res; +} -static const struct i2c_device_id lm85_id[] = { - { "adm1027", adm1027 }, - { "adt7463", adt7463 }, - { "adt7468", adt7468 }, - { "lm85", lm85 }, - { "lm85b", lm85 }, - { "lm85c", lm85 }, - { "emc6d100", emc6d100 }, - { "emc6d101", emc6d100 }, - { "emc6d102", emc6d102 }, - { "emc6d103", emc6d103 }, - { "emc6d103s", emc6d103s }, - { } -}; -MODULE_DEVICE_TABLE(i2c, lm85_id); +static void lm85_write_value(struct i2c_client *client, u8 reg, int value) +{ + switch (reg) { + case LM85_REG_FAN(0): /* Write WORD data */ + case LM85_REG_FAN(1): + case LM85_REG_FAN(2): + case LM85_REG_FAN(3): + case LM85_REG_FAN_MIN(0): + case LM85_REG_FAN_MIN(1): + case LM85_REG_FAN_MIN(2): + case LM85_REG_FAN_MIN(3): + /* NOTE: ALARM is read only, so not included here */ + i2c_smbus_write_byte_data(client, reg, value & 0xff); + i2c_smbus_write_byte_data(client, reg + 1, value >> 8); + break; + default: /* Write BYTE data */ + i2c_smbus_write_byte_data(client, reg, value); + break; + } +} -static struct i2c_driver lm85_driver = { - .class = I2C_CLASS_HWMON, - .driver = { - .name = "lm85", - }, - .probe = lm85_probe, - .remove = lm85_remove, - .id_table = lm85_id, - .detect = lm85_detect, - .address_list = normal_i2c, -}; +static struct lm85_data *lm85_update_device(struct device *dev) +{ + struct i2c_client *client = to_i2c_client(dev); + struct lm85_data *data = i2c_get_clientdata(client); + int i; + + mutex_lock(&data->update_lock); + + if (!data->valid || + time_after(jiffies, data->last_reading + LM85_DATA_INTERVAL)) { + /* Things that change quickly */ + dev_dbg(&client->dev, "Reading sensor values\n"); + + /* + * Have to read extended bits first to "freeze" the + * more significant bits that are read later. + * There are 2 additional resolution bits per channel and we + * have room for 4, so we shift them to the left. + */ + if (data->type == adm1027 || data->type == adt7463 || + data->type == adt7468) { + int ext1 = lm85_read_value(client, + ADM1027_REG_EXTEND_ADC1); + int ext2 = lm85_read_value(client, + ADM1027_REG_EXTEND_ADC2); + int val = (ext1 << 8) + ext2; + + for (i = 0; i <= 4; i++) + data->in_ext[i] = + ((val >> (i * 2)) & 0x03) << 2; + + for (i = 0; i <= 2; i++) + data->temp_ext[i] = + (val >> ((i + 4) * 2)) & 0x0c; + } + + data->vid = lm85_read_value(client, LM85_REG_VID); + + for (i = 0; i <= 3; ++i) { + data->in[i] = + lm85_read_value(client, LM85_REG_IN(i)); + data->fan[i] = + lm85_read_value(client, LM85_REG_FAN(i)); + } + + if (!data->has_vid5) + data->in[4] = lm85_read_value(client, LM85_REG_IN(4)); + + if (data->type == adt7468) + data->cfg5 = lm85_read_value(client, ADT7468_REG_CFG5); + + for (i = 0; i <= 2; ++i) { + data->temp[i] = + lm85_read_value(client, LM85_REG_TEMP(i)); + data->pwm[i] = + lm85_read_value(client, LM85_REG_PWM(i)); + if (IS_ADT7468_OFF64(data)) + data->temp[i] -= 64; + } + + data->alarms = lm85_read_value(client, LM85_REG_ALARM1); + + if (data->type == emc6d100) { + /* Three more voltage sensors */ + for (i = 5; i <= 7; ++i) { + data->in[i] = lm85_read_value(client, + EMC6D100_REG_IN(i)); + } + /* More alarm bits */ + data->alarms |= lm85_read_value(client, + EMC6D100_REG_ALARM3) << 16; + } else if (data->type == emc6d102 || data->type == emc6d103 || + data->type == emc6d103s) { + /* + * Have to read LSB bits after the MSB ones because + * the reading of the MSB bits has frozen the + * LSBs (backward from the ADM1027). + */ + int ext1 = lm85_read_value(client, + EMC6D102_REG_EXTEND_ADC1); + int ext2 = lm85_read_value(client, + EMC6D102_REG_EXTEND_ADC2); + int ext3 = lm85_read_value(client, + EMC6D102_REG_EXTEND_ADC3); + int ext4 = lm85_read_value(client, + EMC6D102_REG_EXTEND_ADC4); + data->in_ext[0] = ext3 & 0x0f; + data->in_ext[1] = ext4 & 0x0f; + data->in_ext[2] = ext4 >> 4; + data->in_ext[3] = ext3 >> 4; + data->in_ext[4] = ext2 >> 4; + + data->temp_ext[0] = ext1 & 0x0f; + data->temp_ext[1] = ext2 & 0x0f; + data->temp_ext[2] = ext1 >> 4; + } + + data->last_reading = jiffies; + } /* last_reading */ + + if (!data->valid || + time_after(jiffies, data->last_config + LM85_CONFIG_INTERVAL)) { + /* Things that don't change often */ + dev_dbg(&client->dev, "Reading config values\n"); + + for (i = 0; i <= 3; ++i) { + data->in_min[i] = + lm85_read_value(client, LM85_REG_IN_MIN(i)); + data->in_max[i] = + lm85_read_value(client, LM85_REG_IN_MAX(i)); + data->fan_min[i] = + lm85_read_value(client, LM85_REG_FAN_MIN(i)); + } + + if (!data->has_vid5) { + data->in_min[4] = lm85_read_value(client, + LM85_REG_IN_MIN(4)); + data->in_max[4] = lm85_read_value(client, + LM85_REG_IN_MAX(4)); + } + + if (data->type == emc6d100) { + for (i = 5; i <= 7; ++i) { + data->in_min[i] = lm85_read_value(client, + EMC6D100_REG_IN_MIN(i)); + data->in_max[i] = lm85_read_value(client, + EMC6D100_REG_IN_MAX(i)); + } + } + + for (i = 0; i <= 2; ++i) { + int val; + + data->temp_min[i] = + lm85_read_value(client, LM85_REG_TEMP_MIN(i)); + data->temp_max[i] = + lm85_read_value(client, LM85_REG_TEMP_MAX(i)); + + data->autofan[i].config = + lm85_read_value(client, LM85_REG_AFAN_CONFIG(i)); + val = lm85_read_value(client, LM85_REG_AFAN_RANGE(i)); + data->pwm_freq[i] = val & 0x07; + data->zone[i].range = val >> 4; + data->autofan[i].min_pwm = + lm85_read_value(client, LM85_REG_AFAN_MINPWM(i)); + data->zone[i].limit = + lm85_read_value(client, LM85_REG_AFAN_LIMIT(i)); + data->zone[i].critical = + lm85_read_value(client, LM85_REG_AFAN_CRITICAL(i)); + + if (IS_ADT7468_OFF64(data)) { + data->temp_min[i] -= 64; + data->temp_max[i] -= 64; + data->zone[i].limit -= 64; + data->zone[i].critical -= 64; + } + } + + if (data->type != emc6d103s) { + i = lm85_read_value(client, LM85_REG_AFAN_SPIKE1); + data->autofan[0].min_off = (i & 0x20) != 0; + data->autofan[1].min_off = (i & 0x40) != 0; + data->autofan[2].min_off = (i & 0x80) != 0; + + i = lm85_read_value(client, LM85_REG_AFAN_HYST1); + data->zone[0].hyst = i >> 4; + data->zone[1].hyst = i & 0x0f; + + i = lm85_read_value(client, LM85_REG_AFAN_HYST2); + data->zone[2].hyst = i >> 4; + } + + data->last_config = jiffies; + } /* last_config */ + + data->valid = 1; + + mutex_unlock(&data->update_lock); + + return data; +} /* 4 Fans */ static ssize_t show_fan(struct device *dev, struct device_attribute *attr, @@ -1467,236 +1657,33 @@ static int lm85_remove(struct i2c_client *client) return 0; } +static const struct i2c_device_id lm85_id[] = { + { "adm1027", adm1027 }, + { "adt7463", adt7463 }, + { "adt7468", adt7468 }, + { "lm85", lm85 }, + { "lm85b", lm85 }, + { "lm85c", lm85 }, + { "emc6d100", emc6d100 }, + { "emc6d101", emc6d100 }, + { "emc6d102", emc6d102 }, + { "emc6d103", emc6d103 }, + { "emc6d103s", emc6d103s }, + { } +}; +MODULE_DEVICE_TABLE(i2c, lm85_id); -static int lm85_read_value(struct i2c_client *client, u8 reg) -{ - int res; - - /* What size location is it? */ - switch (reg) { - case LM85_REG_FAN(0): /* Read WORD data */ - case LM85_REG_FAN(1): - case LM85_REG_FAN(2): - case LM85_REG_FAN(3): - case LM85_REG_FAN_MIN(0): - case LM85_REG_FAN_MIN(1): - case LM85_REG_FAN_MIN(2): - case LM85_REG_FAN_MIN(3): - case LM85_REG_ALARM1: /* Read both bytes at once */ - res = i2c_smbus_read_byte_data(client, reg) & 0xff; - res |= i2c_smbus_read_byte_data(client, reg + 1) << 8; - break; - default: /* Read BYTE data */ - res = i2c_smbus_read_byte_data(client, reg); - break; - } - - return res; -} - -static void lm85_write_value(struct i2c_client *client, u8 reg, int value) -{ - switch (reg) { - case LM85_REG_FAN(0): /* Write WORD data */ - case LM85_REG_FAN(1): - case LM85_REG_FAN(2): - case LM85_REG_FAN(3): - case LM85_REG_FAN_MIN(0): - case LM85_REG_FAN_MIN(1): - case LM85_REG_FAN_MIN(2): - case LM85_REG_FAN_MIN(3): - /* NOTE: ALARM is read only, so not included here */ - i2c_smbus_write_byte_data(client, reg, value & 0xff); - i2c_smbus_write_byte_data(client, reg + 1, value >> 8); - break; - default: /* Write BYTE data */ - i2c_smbus_write_byte_data(client, reg, value); - break; - } -} - -static struct lm85_data *lm85_update_device(struct device *dev) -{ - struct i2c_client *client = to_i2c_client(dev); - struct lm85_data *data = i2c_get_clientdata(client); - int i; - - mutex_lock(&data->update_lock); - - if (!data->valid || - time_after(jiffies, data->last_reading + LM85_DATA_INTERVAL)) { - /* Things that change quickly */ - dev_dbg(&client->dev, "Reading sensor values\n"); - - /* - * Have to read extended bits first to "freeze" the - * more significant bits that are read later. - * There are 2 additional resolution bits per channel and we - * have room for 4, so we shift them to the left. - */ - if (data->type == adm1027 || data->type == adt7463 || - data->type == adt7468) { - int ext1 = lm85_read_value(client, - ADM1027_REG_EXTEND_ADC1); - int ext2 = lm85_read_value(client, - ADM1027_REG_EXTEND_ADC2); - int val = (ext1 << 8) + ext2; - - for (i = 0; i <= 4; i++) - data->in_ext[i] = - ((val >> (i * 2)) & 0x03) << 2; - - for (i = 0; i <= 2; i++) - data->temp_ext[i] = - (val >> ((i + 4) * 2)) & 0x0c; - } - - data->vid = lm85_read_value(client, LM85_REG_VID); - - for (i = 0; i <= 3; ++i) { - data->in[i] = - lm85_read_value(client, LM85_REG_IN(i)); - data->fan[i] = - lm85_read_value(client, LM85_REG_FAN(i)); - } - - if (!data->has_vid5) - data->in[4] = lm85_read_value(client, LM85_REG_IN(4)); - - if (data->type == adt7468) - data->cfg5 = lm85_read_value(client, ADT7468_REG_CFG5); - - for (i = 0; i <= 2; ++i) { - data->temp[i] = - lm85_read_value(client, LM85_REG_TEMP(i)); - data->pwm[i] = - lm85_read_value(client, LM85_REG_PWM(i)); - - if (IS_ADT7468_OFF64(data)) - data->temp[i] -= 64; - } - - data->alarms = lm85_read_value(client, LM85_REG_ALARM1); - - if (data->type == emc6d100) { - /* Three more voltage sensors */ - for (i = 5; i <= 7; ++i) { - data->in[i] = lm85_read_value(client, - EMC6D100_REG_IN(i)); - } - /* More alarm bits */ - data->alarms |= lm85_read_value(client, - EMC6D100_REG_ALARM3) << 16; - } else if (data->type == emc6d102 || data->type == emc6d103 || - data->type == emc6d103s) { - /* - * Have to read LSB bits after the MSB ones because - * the reading of the MSB bits has frozen the - * LSBs (backward from the ADM1027). - */ - int ext1 = lm85_read_value(client, - EMC6D102_REG_EXTEND_ADC1); - int ext2 = lm85_read_value(client, - EMC6D102_REG_EXTEND_ADC2); - int ext3 = lm85_read_value(client, - EMC6D102_REG_EXTEND_ADC3); - int ext4 = lm85_read_value(client, - EMC6D102_REG_EXTEND_ADC4); - data->in_ext[0] = ext3 & 0x0f; - data->in_ext[1] = ext4 & 0x0f; - data->in_ext[2] = ext4 >> 4; - data->in_ext[3] = ext3 >> 4; - data->in_ext[4] = ext2 >> 4; - - data->temp_ext[0] = ext1 & 0x0f; - data->temp_ext[1] = ext2 & 0x0f; - data->temp_ext[2] = ext1 >> 4; - } - - data->last_reading = jiffies; - } /* last_reading */ - - if (!data->valid || - time_after(jiffies, data->last_config + LM85_CONFIG_INTERVAL)) { - /* Things that don't change often */ - dev_dbg(&client->dev, "Reading config values\n"); - - for (i = 0; i <= 3; ++i) { - data->in_min[i] = - lm85_read_value(client, LM85_REG_IN_MIN(i)); - data->in_max[i] = - lm85_read_value(client, LM85_REG_IN_MAX(i)); - data->fan_min[i] = - lm85_read_value(client, LM85_REG_FAN_MIN(i)); - } - - if (!data->has_vid5) { - data->in_min[4] = lm85_read_value(client, - LM85_REG_IN_MIN(4)); - data->in_max[4] = lm85_read_value(client, - LM85_REG_IN_MAX(4)); - } - - if (data->type == emc6d100) { - for (i = 5; i <= 7; ++i) { - data->in_min[i] = lm85_read_value(client, - EMC6D100_REG_IN_MIN(i)); - data->in_max[i] = lm85_read_value(client, - EMC6D100_REG_IN_MAX(i)); - } - } - - for (i = 0; i <= 2; ++i) { - int val; - - data->temp_min[i] = - lm85_read_value(client, LM85_REG_TEMP_MIN(i)); - data->temp_max[i] = - lm85_read_value(client, LM85_REG_TEMP_MAX(i)); - - data->autofan[i].config = - lm85_read_value(client, LM85_REG_AFAN_CONFIG(i)); - val = lm85_read_value(client, LM85_REG_AFAN_RANGE(i)); - data->pwm_freq[i] = val & 0x07; - data->zone[i].range = val >> 4; - data->autofan[i].min_pwm = - lm85_read_value(client, LM85_REG_AFAN_MINPWM(i)); - data->zone[i].limit = - lm85_read_value(client, LM85_REG_AFAN_LIMIT(i)); - data->zone[i].critical = - lm85_read_value(client, LM85_REG_AFAN_CRITICAL(i)); - - if (IS_ADT7468_OFF64(data)) { - data->temp_min[i] -= 64; - data->temp_max[i] -= 64; - data->zone[i].limit -= 64; - data->zone[i].critical -= 64; - } - } - - if (data->type != emc6d103s) { - i = lm85_read_value(client, LM85_REG_AFAN_SPIKE1); - data->autofan[0].min_off = (i & 0x20) != 0; - data->autofan[1].min_off = (i & 0x40) != 0; - data->autofan[2].min_off = (i & 0x80) != 0; - - i = lm85_read_value(client, LM85_REG_AFAN_HYST1); - data->zone[0].hyst = i >> 4; - data->zone[1].hyst = i & 0x0f; - - i = lm85_read_value(client, LM85_REG_AFAN_HYST2); - data->zone[2].hyst = i >> 4; - } - - data->last_config = jiffies; - } /* last_config */ - - data->valid = 1; - - mutex_unlock(&data->update_lock); - - return data; -} +static struct i2c_driver lm85_driver = { + .class = I2C_CLASS_HWMON, + .driver = { + .name = "lm85", + }, + .probe = lm85_probe, + .remove = lm85_remove, + .id_table = lm85_id, + .detect = lm85_detect, + .address_list = normal_i2c, +}; module_i2c_driver(lm85_driver); -- cgit v1.2.3 From 746f68841a530ea0b6fd8f2ec92815ff087b962c Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Wed, 23 Jul 2014 12:29:11 +0800 Subject: hwmon: (lm85) Convert to devm_hwmon_device_register_with_groups Use devm_hwmon_device_register_with_groups() to simplify the code a bit. Signed-off-by: Axel Lin Signed-off-by: Guenter Roeck --- drivers/hwmon/lm85.c | 144 ++++++++++++++++++--------------------------------- 1 file changed, 51 insertions(+), 93 deletions(-) diff --git a/drivers/hwmon/lm85.c b/drivers/hwmon/lm85.c index 9fdf1c021007..2b4b419273fe 100644 --- a/drivers/hwmon/lm85.c +++ b/drivers/hwmon/lm85.c @@ -302,7 +302,8 @@ struct lm85_autofan { * The structure is dynamically allocated. */ struct lm85_data { - struct device *hwmon_dev; + struct i2c_client *client; + const struct attribute_group *groups[6]; const int *freq_map; enum chips type; @@ -382,8 +383,8 @@ static void lm85_write_value(struct i2c_client *client, u8 reg, int value) static struct lm85_data *lm85_update_device(struct device *dev) { - struct i2c_client *client = to_i2c_client(dev); - struct lm85_data *data = i2c_get_clientdata(client); + struct lm85_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; int i; mutex_lock(&data->update_lock); @@ -584,8 +585,8 @@ static ssize_t set_fan_min(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { int nr = to_sensor_dev_attr(attr)->index; - struct i2c_client *client = to_i2c_client(dev); - struct lm85_data *data = i2c_get_clientdata(client); + struct lm85_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; unsigned long val; int err; @@ -708,8 +709,8 @@ static ssize_t set_pwm(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { int nr = to_sensor_dev_attr(attr)->index; - struct i2c_client *client = to_i2c_client(dev); - struct lm85_data *data = i2c_get_clientdata(client); + struct lm85_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; unsigned long val; int err; @@ -750,8 +751,8 @@ static ssize_t set_pwm_enable(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { int nr = to_sensor_dev_attr(attr)->index; - struct i2c_client *client = to_i2c_client(dev); - struct lm85_data *data = i2c_get_clientdata(client); + struct lm85_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; u8 config; unsigned long val; int err; @@ -808,8 +809,8 @@ static ssize_t set_pwm_freq(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { int nr = to_sensor_dev_attr(attr)->index; - struct i2c_client *client = to_i2c_client(dev); - struct lm85_data *data = i2c_get_clientdata(client); + struct lm85_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; unsigned long val; int err; @@ -875,8 +876,8 @@ static ssize_t set_in_min(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { int nr = to_sensor_dev_attr(attr)->index; - struct i2c_client *client = to_i2c_client(dev); - struct lm85_data *data = i2c_get_clientdata(client); + struct lm85_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; long val; int err; @@ -903,8 +904,8 @@ static ssize_t set_in_max(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { int nr = to_sensor_dev_attr(attr)->index; - struct i2c_client *client = to_i2c_client(dev); - struct lm85_data *data = i2c_get_clientdata(client); + struct lm85_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; long val; int err; @@ -959,8 +960,8 @@ static ssize_t set_temp_min(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { int nr = to_sensor_dev_attr(attr)->index; - struct i2c_client *client = to_i2c_client(dev); - struct lm85_data *data = i2c_get_clientdata(client); + struct lm85_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; long val; int err; @@ -990,8 +991,8 @@ static ssize_t set_temp_max(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { int nr = to_sensor_dev_attr(attr)->index; - struct i2c_client *client = to_i2c_client(dev); - struct lm85_data *data = i2c_get_clientdata(client); + struct lm85_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; long val; int err; @@ -1036,8 +1037,8 @@ static ssize_t set_pwm_auto_channels(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { int nr = to_sensor_dev_attr(attr)->index; - struct i2c_client *client = to_i2c_client(dev); - struct lm85_data *data = i2c_get_clientdata(client); + struct lm85_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; long val; int err; @@ -1066,8 +1067,8 @@ static ssize_t set_pwm_auto_pwm_min(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { int nr = to_sensor_dev_attr(attr)->index; - struct i2c_client *client = to_i2c_client(dev); - struct lm85_data *data = i2c_get_clientdata(client); + struct lm85_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; unsigned long val; int err; @@ -1095,8 +1096,8 @@ static ssize_t set_pwm_auto_pwm_minctl(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { int nr = to_sensor_dev_attr(attr)->index; - struct i2c_client *client = to_i2c_client(dev); - struct lm85_data *data = i2c_get_clientdata(client); + struct lm85_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; u8 tmp; long val; int err; @@ -1146,8 +1147,8 @@ static ssize_t set_temp_auto_temp_off(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { int nr = to_sensor_dev_attr(attr)->index; - struct i2c_client *client = to_i2c_client(dev); - struct lm85_data *data = i2c_get_clientdata(client); + struct lm85_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; int min; long val; int err; @@ -1183,8 +1184,8 @@ static ssize_t set_temp_auto_temp_min(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { int nr = to_sensor_dev_attr(attr)->index; - struct i2c_client *client = to_i2c_client(dev); - struct lm85_data *data = i2c_get_clientdata(client); + struct lm85_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; long val; int err; @@ -1222,8 +1223,8 @@ static ssize_t set_temp_auto_temp_max(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { int nr = to_sensor_dev_attr(attr)->index; - struct i2c_client *client = to_i2c_client(dev); - struct lm85_data *data = i2c_get_clientdata(client); + struct lm85_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; int min; long val; int err; @@ -1256,8 +1257,8 @@ static ssize_t set_temp_auto_temp_crit(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { int nr = to_sensor_dev_attr(attr)->index; - struct i2c_client *client = to_i2c_client(dev); - struct lm85_data *data = i2c_get_clientdata(client); + struct lm85_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; long val; int err; @@ -1548,30 +1549,18 @@ static int lm85_detect(struct i2c_client *client, struct i2c_board_info *info) return 0; } -static void lm85_remove_files(struct i2c_client *client, struct lm85_data *data) -{ - sysfs_remove_group(&client->dev.kobj, &lm85_group); - if (data->type != emc6d103s) { - sysfs_remove_group(&client->dev.kobj, &lm85_group_minctl); - sysfs_remove_group(&client->dev.kobj, &lm85_group_temp_off); - } - if (!data->has_vid5) - sysfs_remove_group(&client->dev.kobj, &lm85_group_in4); - if (data->type == emc6d100) - sysfs_remove_group(&client->dev.kobj, &lm85_group_in567); -} - -static int lm85_probe(struct i2c_client *client, - const struct i2c_device_id *id) +static int lm85_probe(struct i2c_client *client, const struct i2c_device_id *id) { + struct device *dev = &client->dev; + struct device *hwmon_dev; struct lm85_data *data; - int err; + int idx = 0; - data = devm_kzalloc(&client->dev, sizeof(struct lm85_data), GFP_KERNEL); + data = devm_kzalloc(dev, sizeof(struct lm85_data), GFP_KERNEL); if (!data) return -ENOMEM; - i2c_set_clientdata(client, data); + data->client = client; data->type = id->driver_data; mutex_init(&data->update_lock); @@ -1596,20 +1585,13 @@ static int lm85_probe(struct i2c_client *client, /* Initialize the LM85 chip */ lm85_init_client(client); - /* Register sysfs hooks */ - err = sysfs_create_group(&client->dev.kobj, &lm85_group); - if (err) - return err; + /* sysfs hooks */ + data->groups[idx++] = &lm85_group; /* minctl and temp_off exist on all chips except emc6d103s */ if (data->type != emc6d103s) { - err = sysfs_create_group(&client->dev.kobj, &lm85_group_minctl); - if (err) - goto err_remove_files; - err = sysfs_create_group(&client->dev.kobj, - &lm85_group_temp_off); - if (err) - goto err_remove_files; + data->groups[idx++] = &lm85_group_minctl; + data->groups[idx++] = &lm85_group_temp_off; } /* @@ -1622,39 +1604,16 @@ static int lm85_probe(struct i2c_client *client, data->has_vid5 = true; } - if (!data->has_vid5) { - err = sysfs_create_group(&client->dev.kobj, &lm85_group_in4); - if (err) - goto err_remove_files; - } + if (!data->has_vid5) + data->groups[idx++] = &lm85_group_in4; /* The EMC6D100 has 3 additional voltage inputs */ - if (data->type == emc6d100) { - err = sysfs_create_group(&client->dev.kobj, &lm85_group_in567); - if (err) - goto err_remove_files; - } - - data->hwmon_dev = hwmon_device_register(&client->dev); - if (IS_ERR(data->hwmon_dev)) { - err = PTR_ERR(data->hwmon_dev); - goto err_remove_files; - } - - return 0; - - /* Error out and cleanup code */ - err_remove_files: - lm85_remove_files(client, data); - return err; -} + if (data->type == emc6d100) + data->groups[idx++] = &lm85_group_in567; -static int lm85_remove(struct i2c_client *client) -{ - struct lm85_data *data = i2c_get_clientdata(client); - hwmon_device_unregister(data->hwmon_dev); - lm85_remove_files(client, data); - return 0; + hwmon_dev = devm_hwmon_device_register_with_groups(dev, client->name, + data, data->groups); + return PTR_ERR_OR_ZERO(hwmon_dev); } static const struct i2c_device_id lm85_id[] = { @@ -1679,7 +1638,6 @@ static struct i2c_driver lm85_driver = { .name = "lm85", }, .probe = lm85_probe, - .remove = lm85_remove, .id_table = lm85_id, .detect = lm85_detect, .address_list = normal_i2c, -- cgit v1.2.3 From 18d03f3cbd229ad9b03e12335ea066461fc00c73 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Fri, 1 Aug 2014 12:38:47 +0800 Subject: hwmon: (ibmpowernv) Use of_property_read_u32 at appropriate place Simplify the code a bit and also improve readability. Signed-off-by: Axel Lin Tested-by: Neelesh Gupta Signed-off-by: Guenter Roeck --- drivers/hwmon/ibmpowernv.c | 7 +++---- 1 file changed, 3 insertions(+), 4 deletions(-) diff --git a/drivers/hwmon/ibmpowernv.c b/drivers/hwmon/ibmpowernv.c index e6b652a35815..d2bf2c97ae70 100644 --- a/drivers/hwmon/ibmpowernv.c +++ b/drivers/hwmon/ibmpowernv.c @@ -227,7 +227,7 @@ static int __init create_device_attrs(struct platform_device *pdev) const struct attribute_group **pgroups = pdata->attr_groups; struct device_node *opal, *np; struct sensor_data *sdata; - const __be32 *sensor_id; + u32 sensor_id; enum sensors type; u32 count = 0; int err = 0; @@ -252,15 +252,14 @@ static int __init create_device_attrs(struct platform_device *pdev) if (type == MAX_SENSOR_TYPE) continue; - sensor_id = of_get_property(np, "sensor-id", NULL); - if (!sensor_id) { + if (of_property_read_u32(np, "sensor-id", &sensor_id)) { dev_info(&pdev->dev, "'sensor-id' missing in the node '%s'\n", np->name); continue; } - sdata[count].id = be32_to_cpup(sensor_id); + sdata[count].id = sensor_id; sdata[count].type = type; err = create_hwmon_attr_name(&pdev->dev, type, np->name, sdata[count].name); -- cgit v1.2.3 From 2565fb05d1e9fc0831f7b1c083bcfcb1cba1f020 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Sat, 2 Aug 2014 13:36:38 +0800 Subject: hwmon: (gpio-fan) Prevent overflow problem when writing large limits On platforms with sizeof(int) < sizeof(unsigned long), writing a rpm value larger than MAXINT will result in unpredictable limit values written to the chip. Avoid auto-conversion from unsigned long to int to fix the problem. Signed-off-by: Axel Lin Cc: stable@vger.kernel.org Signed-off-by: Guenter Roeck --- drivers/hwmon/gpio-fan.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/hwmon/gpio-fan.c b/drivers/hwmon/gpio-fan.c index a43e5b004eb8..4efa1734bdad 100644 --- a/drivers/hwmon/gpio-fan.c +++ b/drivers/hwmon/gpio-fan.c @@ -173,7 +173,7 @@ static int get_fan_speed_index(struct gpio_fan_data *fan_data) return -ENODEV; } -static int rpm_to_speed_index(struct gpio_fan_data *fan_data, int rpm) +static int rpm_to_speed_index(struct gpio_fan_data *fan_data, unsigned long rpm) { struct gpio_fan_speed *speed = fan_data->speed; int i; -- cgit v1.2.3 From cc336546ddca8c22de83720632431c16a5f9fe9a Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Thu, 31 Jul 2014 22:27:04 +0800 Subject: hwmon: (sis5595) Prevent overflow problem when writing large limits On platforms with sizeof(int) < sizeof(long), writing a temperature limit larger than MAXINT will result in unpredictable limit values written to the chip. Avoid auto-conversion from long to int to fix the problem. Signed-off-by: Axel Lin Cc: stable@vger.kernel.org Signed-off-by: Guenter Roeck --- drivers/hwmon/sis5595.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/hwmon/sis5595.c b/drivers/hwmon/sis5595.c index 3532026e25da..bf1d7893d51c 100644 --- a/drivers/hwmon/sis5595.c +++ b/drivers/hwmon/sis5595.c @@ -159,7 +159,7 @@ static inline int TEMP_FROM_REG(s8 val) { return val * 830 + 52120; } -static inline s8 TEMP_TO_REG(int val) +static inline s8 TEMP_TO_REG(long val) { int nval = clamp_val(val, -54120, 157530) ; return nval < 0 ? (nval - 5212 - 415) / 830 : (nval - 5212 + 415) / 830; -- cgit v1.2.3 From fce9626cd93abaf1ef21b361f8a0fa493cc855b2 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Fri, 1 Aug 2014 10:07:25 +0800 Subject: hwmon: (g762) Use of_property_read_u32 at appropriate place Simplify the code a bit and also improve readability. Signed-off-by: Axel Lin Signed-off-by: Guenter Roeck --- drivers/hwmon/g762.c | 7 ++----- 1 file changed, 2 insertions(+), 5 deletions(-) diff --git a/drivers/hwmon/g762.c b/drivers/hwmon/g762.c index 7dbc8c988b59..6aac695b1688 100644 --- a/drivers/hwmon/g762.c +++ b/drivers/hwmon/g762.c @@ -649,15 +649,12 @@ static int g762_of_prop_import_one(struct i2c_client *client, int (*psetter)(struct device *dev, unsigned long val)) { - const __be32 *prop; - int len, ret; + int ret; u32 pval; - prop = of_get_property(client->dev.of_node, pname, &len); - if (!prop || len != sizeof(u32)) + if (of_property_read_u32(client->dev.of_node, pname, &pval)) return 0; - pval = be32_to_cpu(prop[0]); dev_dbg(&client->dev, "found %s (%d)\n", pname, pval); ret = (*psetter)(&client->dev, pval); if (ret) -- cgit v1.2.3