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authorJean Delvare <khali@linux-fr.org>2012-01-17 01:51:47 +0400
committerJean Delvare <khali@endymion.delvare>2012-01-17 01:51:47 +0400
commit2fe28ab51d200121b9c39f9b34cf2d132fcf5de1 (patch)
treee3f51eb47a960a2bbd2a517f1c9988daa2c8755f
parentd216f6809eb690b9a888c286cde68cda4d0c4cfa (diff)
downloadlinux-2fe28ab51d200121b9c39f9b34cf2d132fcf5de1.tar.xz
hwmon: (lm63) Support extended lookup table of LM96163
The LM96163 has an extended lookup table with 12 entries instead of 8, add support for that. Signed-off-by: Jean Delvare <khali@linux-fr.org> Tested-by: Guenter Roeck <guenter.roeck@ericsson.com> Acked-by: Guenter Roeck <guenter.roeck@ericsson.com>
-rw-r--r--drivers/hwmon/lm63.c69
1 files changed, 62 insertions, 7 deletions
diff --git a/drivers/hwmon/lm63.c b/drivers/hwmon/lm63.c
index 1c06a333ba20..5e6457a6644d 100644
--- a/drivers/hwmon/lm63.c
+++ b/drivers/hwmon/lm63.c
@@ -203,18 +203,19 @@ struct lm63_data {
int update_interval; /* in milliseconds */
int max_convrate_hz;
+ int lut_size; /* 8 or 12 */
/* registers values */
u8 config, config_fan;
u16 fan[2]; /* 0: input
1: low limit */
u8 pwm1_freq;
- u8 pwm1[9]; /* 0: current output
- 1-8: lookup table */
- s8 temp8[11]; /* 0: local input
+ u8 pwm1[13]; /* 0: current output
+ 1-12: lookup table */
+ s8 temp8[15]; /* 0: local input
1: local high limit
2: remote critical limit
- 3-10: lookup table */
+ 3-14: lookup table */
s16 temp11[4]; /* 0: remote input
1: remote low limit
2: remote high limit
@@ -653,6 +654,26 @@ static SENSOR_DEVICE_ATTR(pwm1_auto_point8_temp, S_IRUGO,
show_lut_temp, NULL, 10);
static SENSOR_DEVICE_ATTR(pwm1_auto_point8_temp_hyst, S_IRUGO,
show_lut_temp_hyst, NULL, 10);
+static SENSOR_DEVICE_ATTR(pwm1_auto_point9_pwm, S_IRUGO, show_pwm1, NULL, 9);
+static SENSOR_DEVICE_ATTR(pwm1_auto_point9_temp, S_IRUGO,
+ show_lut_temp, NULL, 11);
+static SENSOR_DEVICE_ATTR(pwm1_auto_point9_temp_hyst, S_IRUGO,
+ show_lut_temp_hyst, NULL, 11);
+static SENSOR_DEVICE_ATTR(pwm1_auto_point10_pwm, S_IRUGO, show_pwm1, NULL, 10);
+static SENSOR_DEVICE_ATTR(pwm1_auto_point10_temp, S_IRUGO,
+ show_lut_temp, NULL, 12);
+static SENSOR_DEVICE_ATTR(pwm1_auto_point10_temp_hyst, S_IRUGO,
+ show_lut_temp_hyst, NULL, 12);
+static SENSOR_DEVICE_ATTR(pwm1_auto_point11_pwm, S_IRUGO, show_pwm1, NULL, 11);
+static SENSOR_DEVICE_ATTR(pwm1_auto_point11_temp, S_IRUGO,
+ show_lut_temp, NULL, 13);
+static SENSOR_DEVICE_ATTR(pwm1_auto_point11_temp_hyst, S_IRUGO,
+ show_lut_temp_hyst, NULL, 13);
+static SENSOR_DEVICE_ATTR(pwm1_auto_point12_pwm, S_IRUGO, show_pwm1, NULL, 12);
+static SENSOR_DEVICE_ATTR(pwm1_auto_point12_temp, S_IRUGO,
+ show_lut_temp, NULL, 14);
+static SENSOR_DEVICE_ATTR(pwm1_auto_point12_temp_hyst, S_IRUGO,
+ show_lut_temp_hyst, NULL, 14);
static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, show_local_temp8, NULL, 0);
static SENSOR_DEVICE_ATTR(temp1_max, S_IWUSR | S_IRUGO, show_local_temp8,
@@ -732,6 +753,26 @@ static struct attribute *lm63_attributes[] = {
NULL
};
+static struct attribute *lm63_attributes_extra_lut[] = {
+ &sensor_dev_attr_pwm1_auto_point9_pwm.dev_attr.attr,
+ &sensor_dev_attr_pwm1_auto_point9_temp.dev_attr.attr,
+ &sensor_dev_attr_pwm1_auto_point9_temp_hyst.dev_attr.attr,
+ &sensor_dev_attr_pwm1_auto_point10_pwm.dev_attr.attr,
+ &sensor_dev_attr_pwm1_auto_point10_temp.dev_attr.attr,
+ &sensor_dev_attr_pwm1_auto_point10_temp_hyst.dev_attr.attr,
+ &sensor_dev_attr_pwm1_auto_point11_pwm.dev_attr.attr,
+ &sensor_dev_attr_pwm1_auto_point11_temp.dev_attr.attr,
+ &sensor_dev_attr_pwm1_auto_point11_temp_hyst.dev_attr.attr,
+ &sensor_dev_attr_pwm1_auto_point12_pwm.dev_attr.attr,
+ &sensor_dev_attr_pwm1_auto_point12_temp.dev_attr.attr,
+ &sensor_dev_attr_pwm1_auto_point12_temp_hyst.dev_attr.attr,
+ NULL
+};
+
+static const struct attribute_group lm63_group_extra_lut = {
+ .attrs = lm63_attributes_extra_lut,
+};
+
/*
* On LM63, temp2_crit can be set only once, which should be job
* of the bootloader.
@@ -861,6 +902,11 @@ static int lm63_probe(struct i2c_client *new_client,
&dev_attr_temp2_type);
if (err)
goto exit_remove_files;
+
+ err = sysfs_create_group(&new_client->dev.kobj,
+ &lm63_group_extra_lut);
+ if (err)
+ goto exit_remove_files;
}
data->hwmon_dev = hwmon_device_register(&new_client->dev);
@@ -872,9 +918,13 @@ static int lm63_probe(struct i2c_client *new_client,
return 0;
exit_remove_files:
- device_remove_file(&new_client->dev, &dev_attr_temp2_type);
sysfs_remove_group(&new_client->dev.kobj, &lm63_group);
sysfs_remove_group(&new_client->dev.kobj, &lm63_group_fan1);
+ if (data->kind == lm96163) {
+ device_remove_file(&new_client->dev, &dev_attr_temp2_type);
+ sysfs_remove_group(&new_client->dev.kobj,
+ &lm63_group_extra_lut);
+ }
exit_free:
kfree(data);
exit:
@@ -914,9 +964,11 @@ static void lm63_init_client(struct i2c_client *client)
case lm63:
case lm64:
data->max_convrate_hz = LM63_MAX_CONVRATE_HZ;
+ data->lut_size = 8;
break;
case lm96163:
data->max_convrate_hz = LM96163_MAX_CONVRATE_HZ;
+ data->lut_size = 12;
data->trutherm
= i2c_smbus_read_byte_data(client,
LM96163_REG_TRUTHERM) & 0x02;
@@ -963,9 +1015,12 @@ static int lm63_remove(struct i2c_client *client)
struct lm63_data *data = i2c_get_clientdata(client);
hwmon_device_unregister(data->hwmon_dev);
- device_remove_file(&client->dev, &dev_attr_temp2_type);
sysfs_remove_group(&client->dev.kobj, &lm63_group);
sysfs_remove_group(&client->dev.kobj, &lm63_group_fan1);
+ if (data->kind == lm96163) {
+ device_remove_file(&client->dev, &dev_attr_temp2_type);
+ sysfs_remove_group(&client->dev.kobj, &lm63_group_extra_lut);
+ }
kfree(data);
return 0;
@@ -1046,7 +1101,7 @@ static struct lm63_data *lm63_update_device(struct device *dev)
if (time_after(jiffies, data->lut_last_updated + 5 * HZ) ||
!data->lut_valid) {
- for (i = 0; i < 8; i++) {
+ for (i = 0; i < data->lut_size; i++) {
data->pwm1[1 + i] = i2c_smbus_read_byte_data(client,
LM63_REG_LUT_PWM(i));
data->temp8[3 + i] = i2c_smbus_read_byte_data(client,