summaryrefslogtreecommitdiff
path: root/drivers/leds
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/leds')
-rw-r--r--drivers/leds/Kconfig26
-rw-r--r--drivers/leds/Makefile3
-rw-r--r--drivers/leds/led-class.c15
-rw-r--r--drivers/leds/led-core.c16
-rw-r--r--drivers/leds/led-triggers.c17
-rw-r--r--drivers/leds/leds-clevo-mail.c10
-rw-r--r--drivers/leds/leds-gpio.c19
-rw-r--r--drivers/leds/leds-lm3530.c16
-rw-r--r--drivers/leds/leds-lm3556.c512
-rw-r--r--drivers/leds/leds-lm355x.c572
-rw-r--r--drivers/leds/leds-lm3642.c462
-rw-r--r--drivers/leds/leds-lp5523.c75
-rw-r--r--drivers/leds/leds-pca9633.c19
-rw-r--r--drivers/leds/leds-wm8350.c29
-rw-r--r--drivers/leds/leds.h2
15 files changed, 1188 insertions, 605 deletions
diff --git a/drivers/leds/Kconfig b/drivers/leds/Kconfig
index 16578d3b52bb..f508defc0d96 100644
--- a/drivers/leds/Kconfig
+++ b/drivers/leds/Kconfig
@@ -63,6 +63,17 @@ config LEDS_LM3533
hardware-accelerated blinking with maximum on and off periods of 9.8
and 77 seconds respectively.
+config LEDS_LM3642
+ tristate "LED support for LM3642 Chip"
+ depends on LEDS_CLASS && I2C
+ select REGMAP_I2C
+ help
+ This option enables support for LEDs connected to LM3642.
+ The LM3642 is a 4MHz fixed-frequency synchronous boost
+ converter plus 1.5A constant current driver for a high-current
+ white LED.
+
+
config LEDS_LOCOMO
tristate "LED Support for Locomo device"
depends on LEDS_CLASS
@@ -192,11 +203,12 @@ config LEDS_LP5521
programming the engines.
config LEDS_LP5523
- tristate "LED Support for N.S. LP5523 LED driver chip"
+ tristate "LED Support for TI/National LP5523/55231 LED driver chip"
depends on LEDS_CLASS && I2C
help
- If you say yes here you get support for the National Semiconductor
- LP5523 LED driver. It is 9 channel chip with programmable engines.
+ If you say yes here you get support for TI/National Semiconductor
+ LP5523/55231 LED driver.
+ It is 9 channel chip with programmable engines.
Driver provides direct control via LED class and interface for
programming the engines.
@@ -422,13 +434,13 @@ config LEDS_MAX8997
This option enables support for on-chip LED drivers on
MAXIM MAX8997 PMIC.
-config LEDS_LM3556
- tristate "LED support for LM3556 Chip"
+config LEDS_LM355x
+ tristate "LED support for LM355x Chips, LM3554 and LM3556"
depends on LEDS_CLASS && I2C
select REGMAP_I2C
help
- This option enables support for LEDs connected to LM3556.
- LM3556 includes Torch, Flash and Indicator functions.
+ This option enables support for LEDs connected to LM355x.
+ LM355x includes Torch, Flash and Indicator functions.
config LEDS_OT200
tristate "LED support for the Bachmann OT200"
diff --git a/drivers/leds/Makefile b/drivers/leds/Makefile
index a9b627c4f8ba..3fb9641b6194 100644
--- a/drivers/leds/Makefile
+++ b/drivers/leds/Makefile
@@ -11,6 +11,7 @@ obj-$(CONFIG_LEDS_BD2802) += leds-bd2802.o
obj-$(CONFIG_LEDS_LOCOMO) += leds-locomo.o
obj-$(CONFIG_LEDS_LM3530) += leds-lm3530.o
obj-$(CONFIG_LEDS_LM3533) += leds-lm3533.o
+obj-$(CONFIG_LEDS_LM3642) += leds-lm3642.o
obj-$(CONFIG_LEDS_MIKROTIK_RB532) += leds-rb532.o
obj-$(CONFIG_LEDS_S3C24XX) += leds-s3c24xx.o
obj-$(CONFIG_LEDS_NET48XX) += leds-net48xx.o
@@ -48,7 +49,7 @@ obj-$(CONFIG_LEDS_NETXBIG) += leds-netxbig.o
obj-$(CONFIG_LEDS_ASIC3) += leds-asic3.o
obj-$(CONFIG_LEDS_RENESAS_TPU) += leds-renesas-tpu.o
obj-$(CONFIG_LEDS_MAX8997) += leds-max8997.o
-obj-$(CONFIG_LEDS_LM3556) += leds-lm3556.o
+obj-$(CONFIG_LEDS_LM355x) += leds-lm355x.o
obj-$(CONFIG_LEDS_BLINKM) += leds-blinkm.o
# LED SPI Drivers
diff --git a/drivers/leds/led-class.c b/drivers/leds/led-class.c
index c599095bc005..48cce18e9d6d 100644
--- a/drivers/leds/led-class.c
+++ b/drivers/leds/led-class.c
@@ -124,6 +124,16 @@ static void led_timer_function(unsigned long data)
mod_timer(&led_cdev->blink_timer, jiffies + msecs_to_jiffies(delay));
}
+static void set_brightness_delayed(struct work_struct *ws)
+{
+ struct led_classdev *led_cdev =
+ container_of(ws, struct led_classdev, set_brightness_work);
+
+ led_stop_software_blink(led_cdev);
+
+ __led_set_brightness(led_cdev, led_cdev->delayed_set_value);
+}
+
/**
* led_classdev_suspend - suspend an led_classdev.
* @led_cdev: the led_classdev to suspend.
@@ -191,6 +201,8 @@ int led_classdev_register(struct device *parent, struct led_classdev *led_cdev)
led_update_brightness(led_cdev);
+ INIT_WORK(&led_cdev->set_brightness_work, set_brightness_delayed);
+
init_timer(&led_cdev->blink_timer);
led_cdev->blink_timer.function = led_timer_function;
led_cdev->blink_timer.data = (unsigned long)led_cdev;
@@ -221,7 +233,10 @@ void led_classdev_unregister(struct led_classdev *led_cdev)
up_write(&led_cdev->trigger_lock);
#endif
+ cancel_work_sync(&led_cdev->set_brightness_work);
+
/* Stop blinking */
+ led_stop_software_blink(led_cdev);
led_set_brightness(led_cdev, LED_OFF);
device_unregister(led_cdev->dev);
diff --git a/drivers/leds/led-core.c b/drivers/leds/led-core.c
index 2ab05af3de31..ce8921a753a3 100644
--- a/drivers/leds/led-core.c
+++ b/drivers/leds/led-core.c
@@ -103,13 +103,23 @@ void led_blink_set_oneshot(struct led_classdev *led_cdev,
}
EXPORT_SYMBOL(led_blink_set_oneshot);
-void led_set_brightness(struct led_classdev *led_cdev,
- enum led_brightness brightness)
+void led_stop_software_blink(struct led_classdev *led_cdev)
{
- /* stop and clear soft-blink timer */
del_timer_sync(&led_cdev->blink_timer);
led_cdev->blink_delay_on = 0;
led_cdev->blink_delay_off = 0;
+}
+EXPORT_SYMBOL_GPL(led_stop_software_blink);
+
+void led_set_brightness(struct led_classdev *led_cdev,
+ enum led_brightness brightness)
+{
+ /* delay brightness setting if need to stop soft-blink timer */
+ if (led_cdev->blink_delay_on || led_cdev->blink_delay_off) {
+ led_cdev->delayed_set_value = brightness;
+ schedule_work(&led_cdev->set_brightness_work);
+ return;
+ }
__led_set_brightness(led_cdev, brightness);
}
diff --git a/drivers/leds/led-triggers.c b/drivers/leds/led-triggers.c
index 363975b3c925..262eb4193710 100644
--- a/drivers/leds/led-triggers.c
+++ b/drivers/leds/led-triggers.c
@@ -102,6 +102,12 @@ EXPORT_SYMBOL_GPL(led_trigger_show);
void led_trigger_set(struct led_classdev *led_cdev, struct led_trigger *trig)
{
unsigned long flags;
+ char *event = NULL;
+ char *envp[2];
+ const char *name;
+
+ name = trig ? trig->name : "none";
+ event = kasprintf(GFP_KERNEL, "TRIGGER=%s", name);
/* Remove any existing trigger */
if (led_cdev->trigger) {
@@ -109,6 +115,8 @@ void led_trigger_set(struct led_classdev *led_cdev, struct led_trigger *trig)
list_del(&led_cdev->trig_list);
write_unlock_irqrestore(&led_cdev->trigger->leddev_list_lock,
flags);
+ cancel_work_sync(&led_cdev->set_brightness_work);
+ led_stop_software_blink(led_cdev);
if (led_cdev->trigger->deactivate)
led_cdev->trigger->deactivate(led_cdev);
led_cdev->trigger = NULL;
@@ -122,6 +130,13 @@ void led_trigger_set(struct led_classdev *led_cdev, struct led_trigger *trig)
if (trig->activate)
trig->activate(led_cdev);
}
+
+ if (event) {
+ envp[0] = event;
+ envp[1] = NULL;
+ kobject_uevent_env(&led_cdev->dev->kobj, KOBJ_CHANGE, envp);
+ kfree(event);
+ }
}
EXPORT_SYMBOL_GPL(led_trigger_set);
@@ -224,7 +239,7 @@ void led_trigger_event(struct led_trigger *trig,
struct led_classdev *led_cdev;
led_cdev = list_entry(entry, struct led_classdev, trig_list);
- __led_set_brightness(led_cdev, brightness);
+ led_set_brightness(led_cdev, brightness);
}
read_unlock(&trig->leddev_list_lock);
}
diff --git a/drivers/leds/leds-clevo-mail.c b/drivers/leds/leds-clevo-mail.c
index 1ed1677c916f..e024b0b1c3b1 100644
--- a/drivers/leds/leds-clevo-mail.c
+++ b/drivers/leds/leds-clevo-mail.c
@@ -31,7 +31,7 @@ static int __init clevo_mail_led_dmi_callback(const struct dmi_system_id *id)
}
/*
- * struct mail_led_whitelist - List of known good models
+ * struct clevo_mail_led_dmi_table - List of known good models
*
* Contains the known good models this driver is compatible with.
* When adding a new model try to be as strict as possible. This
@@ -39,7 +39,7 @@ static int __init clevo_mail_led_dmi_callback(const struct dmi_system_id *id)
* detected as working, but in reality it is not) as low as
* possible.
*/
-static struct dmi_system_id __initdata mail_led_whitelist[] = {
+static struct dmi_system_id __initdata clevo_mail_led_dmi_table[] = {
{
.callback = clevo_mail_led_dmi_callback,
.ident = "Clevo D410J",
@@ -59,11 +59,10 @@ static struct dmi_system_id __initdata mail_led_whitelist[] = {
},
{
.callback = clevo_mail_led_dmi_callback,
- .ident = "Positivo Mobile",
+ .ident = "Clevo M5x0V",
.matches = {
DMI_MATCH(DMI_BOARD_VENDOR, "CLEVO Co. "),
DMI_MATCH(DMI_BOARD_NAME, "M5X0V "),
- DMI_MATCH(DMI_PRODUCT_NAME, "Positivo Mobile"),
DMI_MATCH(DMI_PRODUCT_VERSION, "VT6198")
}
},
@@ -89,6 +88,7 @@ static struct dmi_system_id __initdata mail_led_whitelist[] = {
},
{ }
};
+MODULE_DEVICE_TABLE(dmi, clevo_mail_led_dmi_table);
static void clevo_mail_led_set(struct led_classdev *led_cdev,
enum led_brightness value)
@@ -180,7 +180,7 @@ static int __init clevo_mail_led_init(void)
/* Check with the help of DMI if we are running on supported hardware */
if (!nodetect) {
- count = dmi_check_system(mail_led_whitelist);
+ count = dmi_check_system(clevo_mail_led_dmi_table);
} else {
count = 1;
printk(KERN_ERR KBUILD_MODNAME ": Skipping DMI detection. "
diff --git a/drivers/leds/leds-gpio.c b/drivers/leds/leds-gpio.c
index c032b2180340..087d1e66f4f7 100644
--- a/drivers/leds/leds-gpio.c
+++ b/drivers/leds/leds-gpio.c
@@ -20,6 +20,7 @@
#include <linux/slab.h>
#include <linux/workqueue.h>
#include <linux/module.h>
+#include <linux/pinctrl/consumer.h>
struct gpio_led_data {
struct led_classdev cdev;
@@ -170,11 +171,10 @@ static struct gpio_leds_priv * __devinit gpio_leds_create_of(struct platform_dev
{
struct device_node *np = pdev->dev.of_node, *child;
struct gpio_leds_priv *priv;
- int count = 0, ret;
+ int count, ret;
/* count LEDs in this device, so we know how much to allocate */
- for_each_child_of_node(np, child)
- count++;
+ count = of_get_child_count(np);
if (!count)
return NULL;
@@ -228,7 +228,6 @@ static struct gpio_leds_priv * __devinit gpio_leds_create_of(struct platform_dev
{
return NULL;
}
-#define of_gpio_leds_match NULL
#endif /* CONFIG_OF_GPIO */
@@ -236,8 +235,14 @@ static int __devinit gpio_led_probe(struct platform_device *pdev)
{
struct gpio_led_platform_data *pdata = pdev->dev.platform_data;
struct gpio_leds_priv *priv;
+ struct pinctrl *pinctrl;
int i, ret = 0;
+ pinctrl = devm_pinctrl_get_select_default(&pdev->dev);
+ if (IS_ERR(pinctrl))
+ dev_warn(&pdev->dev,
+ "pins are not configured from the driver\n");
+
if (pdata && pdata->num_leds) {
priv = devm_kzalloc(&pdev->dev,
sizeof_gpio_leds_priv(pdata->num_leds),
@@ -270,13 +275,13 @@ static int __devinit gpio_led_probe(struct platform_device *pdev)
static int __devexit gpio_led_remove(struct platform_device *pdev)
{
- struct gpio_leds_priv *priv = dev_get_drvdata(&pdev->dev);
+ struct gpio_leds_priv *priv = platform_get_drvdata(pdev);
int i;
for (i = 0; i < priv->num_leds; i++)
delete_gpio_led(&priv->leds[i]);
- dev_set_drvdata(&pdev->dev, NULL);
+ platform_set_drvdata(pdev, NULL);
return 0;
}
@@ -287,7 +292,7 @@ static struct platform_driver gpio_led_driver = {
.driver = {
.name = "leds-gpio",
.owner = THIS_MODULE,
- .of_match_table = of_gpio_leds_match,
+ .of_match_table = of_match_ptr(of_gpio_leds_match),
},
};
diff --git a/drivers/leds/leds-lm3530.c b/drivers/leds/leds-lm3530.c
index 23637bdb275d..b26306f6724d 100644
--- a/drivers/leds/leds-lm3530.c
+++ b/drivers/leds/leds-lm3530.c
@@ -150,7 +150,7 @@ static int lm3530_get_mode_from_str(const char *str)
if (sysfs_streq(str, mode_map[i].mode))
return mode_map[i].mode_val;
- return -1;
+ return -EINVAL;
}
static void lm3530_als_configure(struct lm3530_platform_data *pdata,
@@ -358,7 +358,7 @@ static ssize_t lm3530_mode_set(struct device *dev, struct device_attribute
mode = lm3530_get_mode_from_str(buf);
if (mode < 0) {
dev_err(dev, "Invalid mode\n");
- return -EINVAL;
+ return mode;
}
drvdata->mode = mode;
@@ -416,7 +416,7 @@ static int __devinit lm3530_probe(struct i2c_client *client,
i2c_set_clientdata(client, drvdata);
- drvdata->regulator = regulator_get(&client->dev, "vin");
+ drvdata->regulator = devm_regulator_get(&client->dev, "vin");
if (IS_ERR(drvdata->regulator)) {
dev_err(&client->dev, "regulator get failed\n");
err = PTR_ERR(drvdata->regulator);
@@ -429,15 +429,13 @@ static int __devinit lm3530_probe(struct i2c_client *client,
if (err < 0) {
dev_err(&client->dev,
"Register Init failed: %d\n", err);
- err = -ENODEV;
- goto err_reg_init;
+ return err;
}
}
err = led_classdev_register(&client->dev, &drvdata->led_dev);
if (err < 0) {
dev_err(&client->dev, "Register led class failed: %d\n", err);
- err = -ENODEV;
- goto err_class_register;
+ return err;
}
err = device_create_file(drvdata->led_dev.dev, &dev_attr_mode);
@@ -451,9 +449,6 @@ static int __devinit lm3530_probe(struct i2c_client *client,
err_create_file:
led_classdev_unregister(&drvdata->led_dev);
-err_class_register:
-err_reg_init:
- regulator_put(drvdata->regulator);
return err;
}
@@ -465,7 +460,6 @@ static int __devexit lm3530_remove(struct i2c_client *client)
if (drvdata->enable)
regulator_disable(drvdata->regulator);
- regulator_put(drvdata->regulator);
led_classdev_unregister(&drvdata->led_dev);
return 0;
}
diff --git a/drivers/leds/leds-lm3556.c b/drivers/leds/leds-lm3556.c
deleted file mode 100644
index 3062abd9a532..000000000000
--- a/drivers/leds/leds-lm3556.c
+++ /dev/null
@@ -1,512 +0,0 @@
-/*
- * Simple driver for Texas Instruments LM3556 LED Flash driver chip (Rev0x03)
- * Copyright (C) 2012 Texas Instruments
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * Please refer Documentation/leds/leds-lm3556.txt file.
- */
-#include <linux/module.h>
-#include <linux/delay.h>
-#include <linux/i2c.h>
-#include <linux/leds.h>
-#include <linux/slab.h>
-#include <linux/platform_device.h>
-#include <linux/fs.h>
-#include <linux/regmap.h>
-#include <linux/platform_data/leds-lm3556.h>
-
-#define REG_FILT_TIME (0x0)
-#define REG_IVFM_MODE (0x1)
-#define REG_NTC (0x2)
-#define REG_INDIC_TIME (0x3)
-#define REG_INDIC_BLINK (0x4)
-#define REG_INDIC_PERIOD (0x5)
-#define REG_TORCH_TIME (0x6)
-#define REG_CONF (0x7)
-#define REG_FLASH (0x8)
-#define REG_I_CTRL (0x9)
-#define REG_ENABLE (0xA)
-#define REG_FLAG (0xB)
-#define REG_MAX (0xB)
-
-#define IVFM_FILTER_TIME_SHIFT (3)
-#define UVLO_EN_SHIFT (7)
-#define HYSTERSIS_SHIFT (5)
-#define IVM_D_TH_SHIFT (2)
-#define IVFM_ADJ_MODE_SHIFT (0)
-#define NTC_EVENT_LVL_SHIFT (5)
-#define NTC_TRIP_TH_SHIFT (2)
-#define NTC_BIAS_I_LVL_SHIFT (0)
-#define INDIC_RAMP_UP_TIME_SHIFT (3)
-#define INDIC_RAMP_DN_TIME_SHIFT (0)
-#define INDIC_N_BLANK_SHIFT (4)
-#define INDIC_PULSE_TIME_SHIFT (0)
-#define INDIC_N_PERIOD_SHIFT (0)
-#define TORCH_RAMP_UP_TIME_SHIFT (3)
-#define TORCH_RAMP_DN_TIME_SHIFT (0)
-#define STROBE_USUAGE_SHIFT (7)
-#define STROBE_PIN_POLARITY_SHIFT (6)
-#define TORCH_PIN_POLARITY_SHIFT (5)
-#define TX_PIN_POLARITY_SHIFT (4)
-#define TX_EVENT_LVL_SHIFT (3)
-#define IVFM_EN_SHIFT (2)
-#define NTC_MODE_SHIFT (1)
-#define INDIC_MODE_SHIFT (0)
-#define INDUCTOR_I_LIMIT_SHIFT (6)
-#define FLASH_RAMP_TIME_SHIFT (3)
-#define FLASH_TOUT_TIME_SHIFT (0)
-#define TORCH_I_SHIFT (4)
-#define FLASH_I_SHIFT (0)
-#define NTC_EN_SHIFT (7)
-#define TX_PIN_EN_SHIFT (6)
-#define STROBE_PIN_EN_SHIFT (5)
-#define TORCH_PIN_EN_SHIFT (4)
-#define PRECHG_MODE_EN_SHIFT (3)
-#define PASS_MODE_ONLY_EN_SHIFT (2)
-#define MODE_BITS_SHIFT (0)
-
-#define IVFM_FILTER_TIME_MASK (0x3)
-#define UVLO_EN_MASK (0x1)
-#define HYSTERSIS_MASK (0x3)
-#define IVM_D_TH_MASK (0x7)
-#define IVFM_ADJ_MODE_MASK (0x3)
-#define NTC_EVENT_LVL_MASK (0x1)
-#define NTC_TRIP_TH_MASK (0x7)
-#define NTC_BIAS_I_LVL_MASK (0x3)
-#define INDIC_RAMP_UP_TIME_MASK (0x7)
-#define INDIC_RAMP_DN_TIME_MASK (0x7)
-#define INDIC_N_BLANK_MASK (0x7)
-#define INDIC_PULSE_TIME_MASK (0x7)
-#define INDIC_N_PERIOD_MASK (0x7)
-#define TORCH_RAMP_UP_TIME_MASK (0x7)
-#define TORCH_RAMP_DN_TIME_MASK (0x7)
-#define STROBE_USUAGE_MASK (0x1)
-#define STROBE_PIN_POLARITY_MASK (0x1)
-#define TORCH_PIN_POLARITY_MASK (0x1)
-#define TX_PIN_POLARITY_MASK (0x1)
-#define TX_EVENT_LVL_MASK (0x1)
-#define IVFM_EN_MASK (0x1)
-#define NTC_MODE_MASK (0x1)
-#define INDIC_MODE_MASK (0x1)
-#define INDUCTOR_I_LIMIT_MASK (0x3)
-#define FLASH_RAMP_TIME_MASK (0x7)
-#define FLASH_TOUT_TIME_MASK (0x7)
-#define TORCH_I_MASK (0x7)
-#define FLASH_I_MASK (0xF)
-#define NTC_EN_MASK (0x1)
-#define TX_PIN_EN_MASK (0x1)
-#define STROBE_PIN_EN_MASK (0x1)
-#define TORCH_PIN_EN_MASK (0x1)
-#define PRECHG_MODE_EN_MASK (0x1)
-#define PASS_MODE_ONLY_EN_MASK (0x1)
-#define MODE_BITS_MASK (0x13)
-#define EX_PIN_CONTROL_MASK (0xF1)
-#define EX_PIN_ENABLE_MASK (0x70)
-
-enum lm3556_indic_pulse_time {
- PULSE_TIME_0_MS = 0,
- PULSE_TIME_32_MS,
- PULSE_TIME_64_MS,
- PULSE_TIME_92_MS,
- PULSE_TIME_128_MS,
- PULSE_TIME_160_MS,
- PULSE_TIME_196_MS,
- PULSE_TIME_224_MS,
- PULSE_TIME_256_MS,
- PULSE_TIME_288_MS,
- PULSE_TIME_320_MS,
- PULSE_TIME_352_MS,
- PULSE_TIME_384_MS,
- PULSE_TIME_416_MS,
- PULSE_TIME_448_MS,
- PULSE_TIME_480_MS,
-};
-
-enum lm3556_indic_n_blank {
- INDIC_N_BLANK_0 = 0,
- INDIC_N_BLANK_1,
- INDIC_N_BLANK_2,
- INDIC_N_BLANK_3,
- INDIC_N_BLANK_4,
- INDIC_N_BLANK_5,
- INDIC_N_BLANK_6,
- INDIC_N_BLANK_7,
- INDIC_N_BLANK_8,
- INDIC_N_BLANK_9,
- INDIC_N_BLANK_10,
- INDIC_N_BLANK_11,
- INDIC_N_BLANK_12,
- INDIC_N_BLANK_13,
- INDIC_N_BLANK_14,
- INDIC_N_BLANK_15,
-};
-
-enum lm3556_indic_period {
- INDIC_PERIOD_0 = 0,
- INDIC_PERIOD_1,
- INDIC_PERIOD_2,
- INDIC_PERIOD_3,
- INDIC_PERIOD_4,
- INDIC_PERIOD_5,
- INDIC_PERIOD_6,
- INDIC_PERIOD_7,
-};
-
-enum lm3556_mode {
- MODES_STASNDBY = 0,
- MODES_INDIC,
- MODES_TORCH,
- MODES_FLASH
-};
-
-#define INDIC_PATTERN_SIZE 4
-
-struct indicator {
- u8 blinking;
- u8 period_cnt;
-};
-
-struct lm3556_chip_data {
- struct device *dev;
-
- struct led_classdev cdev_flash;
- struct led_classdev cdev_torch;
- struct led_classdev cdev_indicator;
-
- struct lm3556_platform_data *pdata;
- struct regmap *regmap;
- struct mutex lock;
-
- unsigned int last_flag;
-};
-
-/* indicator pattern */
-static struct indicator indicator_pattern[INDIC_PATTERN_SIZE] = {
- [0] = {(INDIC_N_BLANK_1 << INDIC_N_BLANK_SHIFT)
- | PULSE_TIME_32_MS, INDIC_PERIOD_1},
- [1] = {(INDIC_N_BLANK_15 << INDIC_N_BLANK_SHIFT)
- | PULSE_TIME_32_MS, INDIC_PERIOD_2},
- [2] = {(INDIC_N_BLANK_10 << INDIC_N_BLANK_SHIFT)
- | PULSE_TIME_32_MS, INDIC_PERIOD_4},
- [3] = {(INDIC_N_BLANK_5 << INDIC_N_BLANK_SHIFT)
- | PULSE_TIME_32_MS, INDIC_PERIOD_7},
-};
-
-/* chip initialize */
-static int __devinit lm3556_chip_init(struct lm3556_chip_data *chip)
-{
- unsigned int reg_val;
- int ret;
- struct lm3556_platform_data *pdata = chip->pdata;
-
- /* set config register */
- ret = regmap_read(chip->regmap, REG_CONF, &reg_val);
- if (ret < 0) {
- dev_err(chip->dev, "Failed to read REG_CONF Register\n");
- goto out;
- }
-
- reg_val &= (~EX_PIN_CONTROL_MASK);
- reg_val |= ((pdata->torch_pin_polarity & 0x01)
- << TORCH_PIN_POLARITY_SHIFT);
- reg_val |= ((pdata->strobe_usuage & 0x01) << STROBE_USUAGE_SHIFT);
- reg_val |= ((pdata->strobe_pin_polarity & 0x01)
- << STROBE_PIN_POLARITY_SHIFT);
- reg_val |= ((pdata->tx_pin_polarity & 0x01) << TX_PIN_POLARITY_SHIFT);
- reg_val |= ((pdata->indicator_mode & 0x01) << INDIC_MODE_SHIFT);
-
- ret = regmap_write(chip->regmap, REG_CONF, reg_val);
- if (ret < 0) {
- dev_err(chip->dev, "Failed to write REG_CONF Regisgter\n");
- goto out;
- }
-
- /* set enable register */
- ret = regmap_read(chip->regmap, REG_ENABLE, &reg_val);
- if (ret < 0) {
- dev_err(chip->dev, "Failed to read REG_ENABLE Register\n");
- goto out;
- }
-
- reg_val &= (~EX_PIN_ENABLE_MASK);
- reg_val |= ((pdata->torch_pin_en & 0x01) << TORCH_PIN_EN_SHIFT);
- reg_val |= ((pdata->strobe_pin_en & 0x01) << STROBE_PIN_EN_SHIFT);
- reg_val |= ((pdata->tx_pin_en & 0x01) << TX_PIN_EN_SHIFT);
-
- ret = regmap_write(chip->regmap, REG_ENABLE, reg_val);
- if (ret < 0) {
- dev_err(chip->dev, "Failed to write REG_ENABLE Regisgter\n");
- goto out;
- }
-
-out:
- return ret;
-}
-
-/* chip control */
-static int lm3556_control(struct lm3556_chip_data *chip,
- u8 brightness, enum lm3556_mode opmode)
-{
- int ret;
- struct lm3556_platform_data *pdata = chip->pdata;
-
- ret = regmap_read(chip->regmap, REG_FLAG, &chip->last_flag);
- if (ret < 0) {
- dev_err(chip->dev, "Failed to read REG_FLAG Register\n");
- goto out;
- }
-
- if (chip->last_flag)
- dev_info(chip->dev, "Last FLAG is 0x%x\n", chip->last_flag);
-
- /* brightness 0 means off-state */
- if (!brightness)
- opmode = MODES_STASNDBY;
-
- switch (opmode) {
- case MODES_TORCH:
- ret = regmap_update_bits(chip->regmap, REG_I_CTRL,
- TORCH_I_MASK << TORCH_I_SHIFT,
- (brightness - 1) << TORCH_I_SHIFT);
-
- if (pdata->torch_pin_en)
- opmode |= (TORCH_PIN_EN_MASK << TORCH_PIN_EN_SHIFT);
- break;
-
- case MODES_FLASH:
- ret = regmap_update_bits(chip->regmap, REG_I_CTRL,
- FLASH_I_MASK << FLASH_I_SHIFT,
- (brightness - 1) << FLASH_I_SHIFT);
- break;
-
- case MODES_INDIC:
- ret = regmap_update_bits(chip->regmap, REG_I_CTRL,
- TORCH_I_MASK << TORCH_I_SHIFT,
- (brightness - 1) << TORCH_I_SHIFT);
- break;
-
- case MODES_STASNDBY:
- if (pdata->torch_pin_en)
- opmode |= (TORCH_PIN_EN_MASK << TORCH_PIN_EN_SHIFT);
- break;
-
- default:
- return ret;
- }
- if (ret < 0) {
- dev_err(chip->dev, "Failed to write REG_I_CTRL Register\n");
- goto out;
- }
- ret = regmap_update_bits(chip->regmap, REG_ENABLE,
- MODE_BITS_MASK << MODE_BITS_SHIFT,
- opmode << MODE_BITS_SHIFT);
-
-out:
- return ret;
-}
-
-/* torch */
-static void lm3556_torch_brightness_set(struct led_classdev *cdev,
- enum led_brightness brightness)
-{
- struct lm3556_chip_data *chip =
- container_of(cdev, struct lm3556_chip_data, cdev_torch);
-
- mutex_lock(&chip->lock);
- lm3556_control(chip, brightness, MODES_TORCH);
- mutex_unlock(&chip->lock);
-}
-
-/* flash */
-static void lm3556_strobe_brightness_set(struct led_classdev *cdev,
- enum led_brightness brightness)
-{
- struct lm3556_chip_data *chip =
- container_of(cdev, struct lm3556_chip_data, cdev_flash);
-
- mutex_lock(&chip->lock);
- lm3556_control(chip, brightness, MODES_FLASH);
- mutex_unlock(&chip->lock);
-}
-
-/* indicator */
-static void lm3556_indicator_brightness_set(struct led_classdev *cdev,
- enum led_brightness brightness)
-{
- struct lm3556_chip_data *chip =
- container_of(cdev, struct lm3556_chip_data, cdev_indicator);
-
- mutex_lock(&chip->lock);
- lm3556_control(chip, brightness, MODES_INDIC);
- mutex_unlock(&chip->lock);
-}
-
-/* indicator pattern */
-static ssize_t lm3556_indicator_pattern_store(struct device *dev,
- struct device_attribute *devAttr,
- const char *buf, size_t size)
-{
- ssize_t ret;
- struct led_classdev *led_cdev = dev_get_drvdata(dev);
- struct lm3556_chip_data *chip =
- container_of(led_cdev, struct lm3556_chip_data, cdev_indicator);
- unsigned int state;
-
- ret = kstrtouint(buf, 10, &state);
- if (ret)
- goto out;
- if (state > INDIC_PATTERN_SIZE - 1)
- state = INDIC_PATTERN_SIZE - 1;
-
- ret = regmap_write(chip->regmap, REG_INDIC_BLINK,
- indicator_pattern[state].blinking);
- if (ret < 0) {
- dev_err(chip->dev, "Failed to write REG_ENABLE Regisgter\n");
- goto out;
- }
-
- ret = regmap_write(chip->regmap, REG_INDIC_PERIOD,
- indicator_pattern[state].period_cnt);
- if (ret < 0) {
- dev_err(chip->dev, "Failed to write REG_ENABLE Regisgter\n");
- goto out;
- }
-
- return size;
-out:
- dev_err(chip->dev, "Indicator pattern doesn't saved\n");
- return size;
-}
-
-static DEVICE_ATTR(pattern, 0666, NULL, lm3556_indicator_pattern_store);
-
-static const struct regmap_config lm3556_regmap = {
- .reg_bits = 8,
- .val_bits = 8,
- .max_register = REG_MAX,
-};
-
-/* module initialize */
-static int __devinit lm3556_probe(struct i2c_client *client,
- const struct i2c_device_id *id)
-{
- struct lm3556_platform_data *pdata = client->dev.platform_data;
- struct lm3556_chip_data *chip;
-
- int err;
-
- if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) {
- dev_err(&client->dev, "i2c functionality check fail.\n");
- return -EOPNOTSUPP;
- }
-
- if (pdata == NULL) {
- dev_err(&client->dev, "Needs Platform Data.\n");
- return -ENODATA;
- }
-
- chip =
- devm_kzalloc(&client->dev, sizeof(struct lm3556_chip_data),
- GFP_KERNEL);
- if (!chip)
- return -ENOMEM;
-
- chip->dev = &client->dev;
- chip->pdata = pdata;
-
- chip->regmap = devm_regmap_init_i2c(client, &lm3556_regmap);
- if (IS_ERR(chip->regmap)) {
- err = PTR_ERR(chip->regmap);
- dev_err(&client->dev, "Failed to allocate register map: %d\n",
- err);
- return err;
- }
-
- mutex_init(&chip->lock);
- i2c_set_clientdata(client, chip);
-
- err = lm3556_chip_init(chip);
- if (err < 0)
- goto err_out;
-
- /* flash */
- chip->cdev_flash.name = "flash";
- chip->cdev_flash.max_brightness = 16;
- chip->cdev_flash.brightness_set = lm3556_strobe_brightness_set;
- err = led_classdev_register((struct device *)
- &client->dev, &chip->cdev_flash);
- if (err < 0)
- goto err_out;
- /* torch */
- chip->cdev_torch.name = "torch";
- chip->cdev_torch.max_brightness = 8;
- chip->cdev_torch.brightness_set = lm3556_torch_brightness_set;
- err = led_classdev_register((struct device *)
- &client->dev, &chip->cdev_torch);
- if (err < 0)
- goto err_create_torch_file;
- /* indicator */
- chip->cdev_indicator.name = "indicator";
- chip->cdev_indicator.max_brightness = 8;
- chip->cdev_indicator.brightness_set = lm3556_indicator_brightness_set;
- err = led_classdev_register((struct device *)
- &client->dev, &chip->cdev_indicator);
- if (err < 0)
- goto err_create_indicator_file;
-
- err = device_create_file(chip->cdev_indicator.dev, &dev_attr_pattern);
- if (err < 0)
- goto err_create_pattern_file;
-
- dev_info(&client->dev, "LM3556 is initialized\n");
- return 0;
-
-err_create_pattern_file:
- led_classdev_unregister(&chip->cdev_indicator);
-err_create_indicator_file:
- led_classdev_unregister(&chip->cdev_torch);
-err_create_torch_file:
- led_classdev_unregister(&chip->cdev_flash);
-err_out:
- return err;
-}
-
-static int __devexit lm3556_remove(struct i2c_client *client)
-{
- struct lm3556_chip_data *chip = i2c_get_clientdata(client);
-
- device_remove_file(chip->cdev_indicator.dev, &dev_attr_pattern);
- led_classdev_unregister(&chip->cdev_indicator);
- led_classdev_unregister(&chip->cdev_torch);
- led_classdev_unregister(&chip->cdev_flash);
- regmap_write(chip->regmap, REG_ENABLE, 0);
- return 0;
-}
-
-static const struct i2c_device_id lm3556_id[] = {
- {LM3556_NAME, 0},
- {}
-};
-
-MODULE_DEVICE_TABLE(i2c, lm3556_id);
-
-static struct i2c_driver lm3556_i2c_driver = {
- .driver = {
- .name = LM3556_NAME,
- .owner = THIS_MODULE,
- .pm = NULL,
- },
- .probe = lm3556_probe,
- .remove = __devexit_p(lm3556_remove),
- .id_table = lm3556_id,
-};
-
-module_i2c_driver(lm3556_i2c_driver);
-
-MODULE_DESCRIPTION("Texas Instruments Flash Lighting driver for LM3556");
-MODULE_AUTHOR("Daniel Jeong <daniel.jeong@ti.com>");
-MODULE_AUTHOR("G.Shark Jeong <gshark.jeong@gmail.com>");
-MODULE_LICENSE("GPL v2");
diff --git a/drivers/leds/leds-lm355x.c b/drivers/leds/leds-lm355x.c
new file mode 100644
index 000000000000..065ec015d67a
--- /dev/null
+++ b/drivers/leds/leds-lm355x.c
@@ -0,0 +1,572 @@
+/*
+* Simple driver for Texas Instruments LM355x LED Flash driver chip
+* Copyright (C) 2012 Texas Instruments
+*
+* This program is free software; you can redistribute it and/or modify
+* it under the terms of the GNU General Public License version 2 as
+* published by the Free Software Foundation.
+*/
+
+#include <linux/module.h>
+#include <linux/delay.h>
+#include <linux/i2c.h>
+#include <linux/gpio.h>
+#include <linux/leds.h>
+#include <linux/slab.h>
+#include <linux/platform_device.h>
+#include <linux/fs.h>
+#include <linux/regmap.h>
+#include <linux/workqueue.h>
+#include <linux/platform_data/leds-lm355x.h>
+
+enum lm355x_type {
+ CHIP_LM3554 = 0,
+ CHIP_LM3556,
+};
+
+enum lm355x_regs {
+ REG_FLAG = 0,
+ REG_TORCH_CFG,
+ REG_TORCH_CTRL,
+ REG_STROBE_CFG,
+ REG_FLASH_CTRL,
+ REG_INDI_CFG,
+ REG_INDI_CTRL,
+ REG_OPMODE,
+ REG_MAX,
+};
+
+/* operation mode */
+enum lm355x_mode {
+ MODE_SHDN = 0,
+ MODE_INDIC,
+ MODE_TORCH,
+ MODE_FLASH
+};
+
+/* register map info. */
+struct lm355x_reg_data {
+ u8 regno;
+ u8 mask;
+ u8 shift;
+};
+
+struct lm355x_chip_data {
+ struct device *dev;
+ enum lm355x_type type;
+
+ struct led_classdev cdev_flash;
+ struct led_classdev cdev_torch;
+ struct led_classdev cdev_indicator;
+
+ struct work_struct work_flash;
+ struct work_struct work_torch;
+ struct work_struct work_indicator;
+
+ u8 br_flash;
+ u8 br_torch;
+ u8 br_indicator;
+
+ struct lm355x_platform_data *pdata;
+ struct regmap *regmap;
+ struct mutex lock;
+
+ unsigned int last_flag;
+ struct lm355x_reg_data *regs;
+};
+
+/* specific indicator function for lm3556 */
+enum lm3556_indic_pulse_time {
+ PULSE_TIME_0_MS = 0,
+ PULSE_TIME_32_MS,
+ PULSE_TIME_64_MS,
+ PULSE_TIME_92_MS,
+ PULSE_TIME_128_MS,
+ PULSE_TIME_160_MS,
+ PULSE_TIME_196_MS,
+ PULSE_TIME_224_MS,
+ PULSE_TIME_256_MS,
+ PULSE_TIME_288_MS,
+ PULSE_TIME_320_MS,
+ PULSE_TIME_352_MS,
+ PULSE_TIME_384_MS,
+ PULSE_TIME_416_MS,
+ PULSE_TIME_448_MS,
+ PULSE_TIME_480_MS,
+};
+
+enum lm3556_indic_n_blank {
+ INDIC_N_BLANK_0 = 0,
+ INDIC_N_BLANK_1,
+ INDIC_N_BLANK_2,
+ INDIC_N_BLANK_3,
+ INDIC_N_BLANK_4,
+ INDIC_N_BLANK_5,
+ INDIC_N_BLANK_6,
+ INDIC_N_BLANK_7,
+ INDIC_N_BLANK_8,
+ INDIC_N_BLANK_9,
+ INDIC_N_BLANK_10,
+ INDIC_N_BLANK_11,
+ INDIC_N_BLANK_12,
+ INDIC_N_BLANK_13,
+ INDIC_N_BLANK_14,
+ INDIC_N_BLANK_15,
+};
+
+enum lm3556_indic_period {
+ INDIC_PERIOD_0 = 0,
+ INDIC_PERIOD_1,
+ INDIC_PERIOD_2,
+ INDIC_PERIOD_3,
+ INDIC_PERIOD_4,
+ INDIC_PERIOD_5,
+ INDIC_PERIOD_6,
+ INDIC_PERIOD_7,
+};
+
+#define INDIC_PATTERN_SIZE 4
+
+struct indicator {
+ u8 blinking;
+ u8 period_cnt;
+};
+
+/* indicator pattern data only for lm3556 */
+static struct indicator indicator_pattern[INDIC_PATTERN_SIZE] = {
+ [0] = {(INDIC_N_BLANK_1 << 4) | PULSE_TIME_32_MS, INDIC_PERIOD_1},
+ [1] = {(INDIC_N_BLANK_15 << 4) | PULSE_TIME_32_MS, INDIC_PERIOD_2},
+ [2] = {(INDIC_N_BLANK_10 << 4) | PULSE_TIME_32_MS, INDIC_PERIOD_4},
+ [3] = {(INDIC_N_BLANK_5 << 4) | PULSE_TIME_32_MS, INDIC_PERIOD_7},
+};
+
+static struct lm355x_reg_data lm3554_regs[REG_MAX] = {
+ [REG_FLAG] = {0xD0, 0xBF, 0},
+ [REG_TORCH_CFG] = {0xE0, 0x80, 7},
+ [REG_TORCH_CTRL] = {0xA0, 0x38, 3},
+ [REG_STROBE_CFG] = {0xE0, 0x04, 2},
+ [REG_FLASH_CTRL] = {0xB0, 0x78, 3},
+ [REG_INDI_CFG] = {0xE0, 0x08, 3},
+ [REG_INDI_CTRL] = {0xA0, 0xC0, 6},
+ [REG_OPMODE] = {0xA0, 0x03, 0},
+};
+
+static struct lm355x_reg_data lm3556_regs[REG_MAX] = {
+ [REG_FLAG] = {0x0B, 0xFF, 0},
+ [REG_TORCH_CFG] = {0x0A, 0x10, 4},
+ [REG_TORCH_CTRL] = {0x09, 0x70, 4},
+ [REG_STROBE_CFG] = {0x0A, 0x20, 5},
+ [REG_FLASH_CTRL] = {0x09, 0x0F, 0},
+ [REG_INDI_CFG] = {0xFF, 0xFF, 0},
+ [REG_INDI_CTRL] = {0x09, 0x70, 4},
+ [REG_OPMODE] = {0x0A, 0x03, 0},
+};
+
+static char lm355x_name[][I2C_NAME_SIZE] = {
+ [CHIP_LM3554] = LM3554_NAME,
+ [CHIP_LM3556] = LM3556_NAME,
+};
+
+/* chip initialize */
+static int __devinit lm355x_chip_init(struct lm355x_chip_data *chip)
+{
+ int ret;
+ unsigned int reg_val;
+ struct lm355x_platform_data *pdata = chip->pdata;
+
+ /* input and output pins configuration */
+ switch (chip->type) {
+ case CHIP_LM3554:
+ reg_val = pdata->pin_tx2 | pdata->ntc_pin;
+ ret = regmap_update_bits(chip->regmap, 0xE0, 0x28, reg_val);
+ if (ret < 0)
+ goto out;
+ reg_val = pdata->pass_mode;
+ ret = regmap_update_bits(chip->regmap, 0xA0, 0x04, reg_val);
+ if (ret < 0)
+ goto out;
+ break;
+
+ case CHIP_LM3556:
+ reg_val = pdata->pin_tx2 | pdata->ntc_pin | pdata->pass_mode;
+ ret = regmap_update_bits(chip->regmap, 0x0A, 0xC4, reg_val);
+ if (ret < 0)
+ goto out;
+ break;
+ default:
+ return -ENODATA;
+ }
+
+ return ret;
+out:
+ dev_err(chip->dev, "%s:i2c access fail to register\n", __func__);
+ return ret;
+}
+
+/* chip control */
+static void lm355x_control(struct lm355x_chip_data *chip,
+ u8 brightness, enum lm355x_mode opmode)
+{
+ int ret;
+ unsigned int reg_val;
+ struct lm355x_platform_data *pdata = chip->pdata;
+ struct lm355x_reg_data *preg = chip->regs;
+
+ ret = regmap_read(chip->regmap, preg[REG_FLAG].regno, &chip->last_flag);
+ if (ret < 0)
+ goto out;
+ if (chip->last_flag & preg[REG_FLAG].mask)
+ dev_info(chip->dev, "%s Last FLAG is 0x%x\n",
+ lm355x_name[chip->type],
+ chip->last_flag & preg[REG_FLAG].mask);
+ /* brightness 0 means shutdown */
+ if (!brightness)
+ opmode = MODE_SHDN;
+
+ switch (opmode) {
+ case MODE_TORCH:
+ ret =
+ regmap_update_bits(chip->regmap, preg[REG_TORCH_CTRL].regno,
+ preg[REG_TORCH_CTRL].mask,
+ (brightness - 1)
+ << preg[REG_TORCH_CTRL].shift);
+ if (ret < 0)
+ goto out;
+
+ if (pdata->pin_tx1 != LM355x_PIN_TORCH_DISABLE) {
+ ret =
+ regmap_update_bits(chip->regmap,
+ preg[REG_TORCH_CFG].regno,
+ preg[REG_TORCH_CFG].mask,
+ 0x01 <<
+ preg[REG_TORCH_CFG].shift);
+ if (ret < 0)
+ goto out;
+ opmode = MODE_SHDN;
+ dev_info(chip->dev,
+ "torch brt is set - ext. torch pin mode\n");
+ }
+ break;
+
+ case MODE_FLASH:
+
+ ret =
+ regmap_update_bits(chip->regmap, preg[REG_FLASH_CTRL].regno,
+ preg[REG_FLASH_CTRL].mask,
+ (brightness - 1)
+ << preg[REG_FLASH_CTRL].shift);
+ if (ret < 0)
+ goto out;
+
+ if (pdata->pin_strobe != LM355x_PIN_STROBE_DISABLE) {
+ if (chip->type == CHIP_LM3554)
+ reg_val = 0x00;
+ else
+ reg_val = 0x01;
+ ret =
+ regmap_update_bits(chip->regmap,
+ preg[REG_STROBE_CFG].regno,
+ preg[REG_STROBE_CFG].mask,
+ reg_val <<
+ preg[REG_STROBE_CFG].shift);
+ if (ret < 0)
+ goto out;
+ opmode = MODE_SHDN;
+ dev_info(chip->dev,
+ "flash brt is set - ext. strobe pin mode\n");
+ }
+ break;
+
+ case MODE_INDIC:
+ ret =
+ regmap_update_bits(chip->regmap, preg[REG_INDI_CTRL].regno,
+ preg[REG_INDI_CTRL].mask,
+ (brightness - 1)
+ << preg[REG_INDI_CTRL].shift);
+ if (ret < 0)
+ goto out;
+
+ if (pdata->pin_tx2 != LM355x_PIN_TX_DISABLE) {
+ ret =
+ regmap_update_bits(chip->regmap,
+ preg[REG_INDI_CFG].regno,
+ preg[REG_INDI_CFG].mask,
+ 0x01 <<
+ preg[REG_INDI_CFG].shift);
+ if (ret < 0)
+ goto out;
+ opmode = MODE_SHDN;
+ }
+ break;
+ case MODE_SHDN:
+ break;
+ default:
+ return;
+ }
+ /* operation mode control */
+ ret = regmap_update_bits(chip->regmap, preg[REG_OPMODE].regno,
+ preg[REG_OPMODE].mask,
+ opmode << preg[REG_OPMODE].shift);
+ if (ret < 0)
+ goto out;
+ return;
+out:
+ dev_err(chip->dev, "%s:i2c access fail to register\n", __func__);
+ return;
+}
+
+/* torch */
+static void lm355x_deferred_torch_brightness_set(struct work_struct *work)
+{
+ struct lm355x_chip_data *chip =
+ container_of(work, struct lm355x_chip_data, work_torch);
+
+ mutex_lock(&chip->lock);
+ lm355x_control(chip, chip->br_torch, MODE_TORCH);
+ mutex_unlock(&chip->lock);
+}
+
+static void lm355x_torch_brightness_set(struct led_classdev *cdev,
+ enum led_brightness brightness)
+{
+ struct lm355x_chip_data *chip =
+ container_of(cdev, struct lm355x_chip_data, cdev_torch);
+
+ chip->br_torch = brightness;
+ schedule_work(&chip->work_torch);
+}
+
+/* flash */
+static void lm355x_deferred_strobe_brightness_set(struct work_struct *work)
+{
+ struct lm355x_chip_data *chip =
+ container_of(work, struct lm355x_chip_data, work_flash);
+
+ mutex_lock(&chip->lock);
+ lm355x_control(chip, chip->br_flash, MODE_FLASH);
+ mutex_unlock(&chip->lock);
+}
+
+static void lm355x_strobe_brightness_set(struct led_classdev *cdev,
+ enum led_brightness brightness)
+{
+ struct lm355x_chip_data *chip =
+ container_of(cdev, struct lm355x_chip_data, cdev_flash);
+
+ chip->br_flash = brightness;
+ schedule_work(&chip->work_flash);
+}
+
+/* indicator */
+static void lm355x_deferred_indicator_brightness_set(struct work_struct *work)
+{
+ struct lm355x_chip_data *chip =
+ container_of(work, struct lm355x_chip_data, work_indicator);
+
+ mutex_lock(&chip->lock);
+ lm355x_control(chip, chip->br_indicator, MODE_INDIC);
+ mutex_unlock(&chip->lock);
+}
+
+static void lm355x_indicator_brightness_set(struct led_classdev *cdev,
+ enum led_brightness brightness)
+{
+ struct lm355x_chip_data *chip =
+ container_of(cdev, struct lm355x_chip_data, cdev_indicator);
+
+ chip->br_indicator = brightness;
+ schedule_work(&chip->work_indicator);
+}
+
+/* indicator pattern only for lm3556*/
+static ssize_t lm3556_indicator_pattern_store(struct device *dev,
+ struct device_attribute *devAttr,
+ const char *buf, size_t size)
+{
+ ssize_t ret;
+ struct led_classdev *led_cdev = dev_get_drvdata(dev);
+ struct lm355x_chip_data *chip =
+ container_of(led_cdev, struct lm355x_chip_data, cdev_indicator);
+ unsigned int state;
+
+ ret = kstrtouint(buf, 10, &state);
+ if (ret)
+ goto out;
+ if (state > INDIC_PATTERN_SIZE - 1)
+ state = INDIC_PATTERN_SIZE - 1;
+
+ ret = regmap_write(chip->regmap, 0x04,
+ indicator_pattern[state].blinking);
+ if (ret < 0)
+ goto out;
+
+ ret = regmap_write(chip->regmap, 0x05,
+ indicator_pattern[state].period_cnt);
+ if (ret < 0)
+ goto out;
+
+ return size;
+out:
+ dev_err(chip->dev, "%s:i2c access fail to register\n", __func__);
+ return size;
+}
+
+static DEVICE_ATTR(pattern, 0666, NULL, lm3556_indicator_pattern_store);
+
+static const struct regmap_config lm355x_regmap = {
+ .reg_bits = 8,
+ .val_bits = 8,
+ .max_register = 0xFF,
+};
+
+/* module initialize */
+static int __devinit lm355x_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
+{
+ struct lm355x_platform_data *pdata = client->dev.platform_data;
+ struct lm355x_chip_data *chip;
+
+ int err;
+
+ if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) {
+ dev_err(&client->dev, "i2c functionality check fail.\n");
+ return -EOPNOTSUPP;
+ }
+
+ if (pdata == NULL) {
+ dev_err(&client->dev, "needs Platform Data.\n");
+ return -ENODATA;
+ }
+
+ chip = devm_kzalloc(&client->dev,
+ sizeof(struct lm355x_chip_data), GFP_KERNEL);
+ if (!chip)
+ return -ENOMEM;
+
+ chip->dev = &client->dev;
+ chip->type = id->driver_data;
+ switch (id->driver_data) {
+ case CHIP_LM3554:
+ chip->regs = lm3554_regs;
+ break;
+ case CHIP_LM3556:
+ chip->regs = lm3556_regs;
+ break;
+ default:
+ return -ENOSYS;
+ }
+ chip->pdata = pdata;
+
+ chip->regmap = devm_regmap_init_i2c(client, &lm355x_regmap);
+ if (IS_ERR(chip->regmap)) {
+ err = PTR_ERR(chip->regmap);
+ dev_err(&client->dev,
+ "Failed to allocate register map: %d\n", err);
+ return err;
+ }
+
+ mutex_init(&chip->lock);
+ i2c_set_clientdata(client, chip);
+
+ err = lm355x_chip_init(chip);
+ if (err < 0)
+ goto err_out;
+
+ /* flash */
+ INIT_WORK(&chip->work_flash, lm355x_deferred_strobe_brightness_set);
+ chip->cdev_flash.name = "flash";
+ chip->cdev_flash.max_brightness = 16;
+ chip->cdev_flash.brightness_set = lm355x_strobe_brightness_set;
+ err = led_classdev_register((struct device *)
+ &client->dev, &chip->cdev_flash);
+ if (err < 0)
+ goto err_out;
+ /* torch */
+ INIT_WORK(&chip->work_torch, lm355x_deferred_torch_brightness_set);
+ chip->cdev_torch.name = "torch";
+ chip->cdev_torch.max_brightness = 8;
+ chip->cdev_torch.brightness_set = lm355x_torch_brightness_set;
+ err = led_classdev_register((struct device *)
+ &client->dev, &chip->cdev_torch);
+ if (err < 0)
+ goto err_create_torch_file;
+ /* indicator */
+ INIT_WORK(&chip->work_indicator,
+ lm355x_deferred_indicator_brightness_set);
+ chip->cdev_indicator.name = "indicator";
+ if (id->driver_data == CHIP_LM3554)
+ chip->cdev_indicator.max_brightness = 4;
+ else
+ chip->cdev_indicator.max_brightness = 8;
+ chip->cdev_indicator.brightness_set = lm355x_indicator_brightness_set;
+ err = led_classdev_register((struct device *)
+ &client->dev, &chip->cdev_indicator);
+ if (err < 0)
+ goto err_create_indicator_file;
+ /* indicator pattern control only for LM3554 */
+ if (id->driver_data == CHIP_LM3556) {
+ err =
+ device_create_file(chip->cdev_indicator.dev,
+ &dev_attr_pattern);
+ if (err < 0)
+ goto err_create_pattern_file;
+ }
+
+ dev_info(&client->dev, "%s is initialized\n",
+ lm355x_name[id->driver_data]);
+ return 0;
+
+err_create_pattern_file:
+ led_classdev_unregister(&chip->cdev_indicator);
+err_create_indicator_file:
+ led_classdev_unregister(&chip->cdev_torch);
+err_create_torch_file:
+ led_classdev_unregister(&chip->cdev_flash);
+err_out:
+ return err;
+}
+
+static int __devexit lm355x_remove(struct i2c_client *client)
+{
+ struct lm355x_chip_data *chip = i2c_get_clientdata(client);
+ struct lm355x_reg_data *preg = chip->regs;
+
+ regmap_write(chip->regmap, preg[REG_OPMODE].regno, 0);
+ if (chip->type == CHIP_LM3556)
+ device_remove_file(chip->cdev_indicator.dev, &dev_attr_pattern);
+ led_classdev_unregister(&chip->cdev_indicator);
+ flush_work(&chip->work_indicator);
+ led_classdev_unregister(&chip->cdev_torch);
+ flush_work(&chip->work_torch);
+ led_classdev_unregister(&chip->cdev_flash);
+ flush_work(&chip->work_flash);
+ dev_info(&client->dev, "%s is removed\n", lm355x_name[chip->type]);
+
+ return 0;
+}
+
+static const struct i2c_device_id lm355x_id[] = {
+ {LM3554_NAME, CHIP_LM3554},
+ {LM3556_NAME, CHIP_LM3556},
+ {}
+};
+
+MODULE_DEVICE_TABLE(i2c, lm355x_id);
+
+static struct i2c_driver lm355x_i2c_driver = {
+ .driver = {
+ .name = LM355x_NAME,
+ .owner = THIS_MODULE,
+ .pm = NULL,
+ },
+ .probe = lm355x_probe,
+ .remove = __devexit_p(lm355x_remove),
+ .id_table = lm355x_id,
+};
+
+module_i2c_driver(lm355x_i2c_driver);
+
+MODULE_DESCRIPTION("Texas Instruments Flash Lighting driver for LM355x");
+MODULE_AUTHOR("Daniel Jeong <daniel.jeong@ti.com>");
+MODULE_AUTHOR("G.Shark Jeong <gshark.jeong@gmail.com>");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/leds/leds-lm3642.c b/drivers/leds/leds-lm3642.c
new file mode 100644
index 000000000000..3285006e9888
--- /dev/null
+++ b/drivers/leds/leds-lm3642.c
@@ -0,0 +1,462 @@
+/*
+* Simple driver for Texas Instruments LM3642 LED Flash driver chip
+* Copyright (C) 2012 Texas Instruments
+*
+* This program is free software; you can redistribute it and/or modify
+* it under the terms of the GNU General Public License version 2 as
+* published by the Free Software Foundation.
+*
+*/
+#include <linux/module.h>
+#include <linux/delay.h>
+#include <linux/i2c.h>
+#include <linux/leds.h>
+#include <linux/slab.h>
+#include <linux/platform_device.h>
+#include <linux/fs.h>
+#include <linux/regmap.h>
+#include <linux/workqueue.h>
+#include <linux/platform_data/leds-lm3642.h>
+
+#define REG_FILT_TIME (0x0)
+#define REG_IVFM_MODE (0x1)
+#define REG_TORCH_TIME (0x6)
+#define REG_FLASH (0x8)
+#define REG_I_CTRL (0x9)
+#define REG_ENABLE (0xA)
+#define REG_FLAG (0xB)
+#define REG_MAX (0xB)
+
+#define UVLO_EN_SHIFT (7)
+#define IVM_D_TH_SHIFT (2)
+#define TORCH_RAMP_UP_TIME_SHIFT (3)
+#define TORCH_RAMP_DN_TIME_SHIFT (0)
+#define INDUCTOR_I_LIMIT_SHIFT (6)
+#define FLASH_RAMP_TIME_SHIFT (3)
+#define FLASH_TOUT_TIME_SHIFT (0)
+#define TORCH_I_SHIFT (4)
+#define FLASH_I_SHIFT (0)
+#define IVFM_SHIFT (7)
+#define TX_PIN_EN_SHIFT (6)
+#define STROBE_PIN_EN_SHIFT (5)
+#define TORCH_PIN_EN_SHIFT (4)
+#define MODE_BITS_SHIFT (0)
+
+#define UVLO_EN_MASK (0x1)
+#define IVM_D_TH_MASK (0x7)
+#define TORCH_RAMP_UP_TIME_MASK (0x7)
+#define TORCH_RAMP_DN_TIME_MASK (0x7)
+#define INDUCTOR_I_LIMIT_MASK (0x1)
+#define FLASH_RAMP_TIME_MASK (0x7)
+#define FLASH_TOUT_TIME_MASK (0x7)
+#define TORCH_I_MASK (0x7)
+#define FLASH_I_MASK (0xF)
+#define IVFM_MASK (0x1)
+#define TX_PIN_EN_MASK (0x1)
+#define STROBE_PIN_EN_MASK (0x1)
+#define TORCH_PIN_EN_MASK (0x1)
+#define MODE_BITS_MASK (0x73)
+#define EX_PIN_CONTROL_MASK (0x71)
+#define EX_PIN_ENABLE_MASK (0x70)
+
+enum lm3642_mode {
+ MODES_STASNDBY = 0,
+ MODES_INDIC,
+ MODES_TORCH,
+ MODES_FLASH
+};
+
+struct lm3642_chip_data {
+ struct device *dev;
+
+ struct led_classdev cdev_flash;
+ struct led_classdev cdev_torch;
+ struct led_classdev cdev_indicator;
+
+ struct work_struct work_flash;
+ struct work_struct work_torch;
+ struct work_struct work_indicator;
+
+ u8 br_flash;
+ u8 br_torch;
+ u8 br_indicator;
+
+ enum lm3642_torch_pin_enable torch_pin;
+ enum lm3642_strobe_pin_enable strobe_pin;
+ enum lm3642_tx_pin_enable tx_pin;
+
+ struct lm3642_platform_data *pdata;
+ struct regmap *regmap;
+ struct mutex lock;
+
+ unsigned int last_flag;
+};
+
+/* chip initialize */
+static int __devinit lm3642_chip_init(struct lm3642_chip_data *chip)
+{
+ int ret;
+ struct lm3642_platform_data *pdata = chip->pdata;
+
+ /* set enable register */
+ ret = regmap_update_bits(chip->regmap, REG_ENABLE, EX_PIN_ENABLE_MASK,
+ pdata->tx_pin);
+ if (ret < 0)
+ dev_err(chip->dev, "Failed to update REG_ENABLE Register\n");
+ return ret;
+}
+
+/* chip control */
+static int lm3642_control(struct lm3642_chip_data *chip,
+ u8 brightness, enum lm3642_mode opmode)
+{
+ int ret;
+
+ ret = regmap_read(chip->regmap, REG_FLAG, &chip->last_flag);
+ if (ret < 0) {
+ dev_err(chip->dev, "Failed to read REG_FLAG Register\n");
+ goto out;
+ }
+
+ if (chip->last_flag)
+ dev_info(chip->dev, "Last FLAG is 0x%x\n", chip->last_flag);
+
+ /* brightness 0 means off-state */
+ if (!brightness)
+ opmode = MODES_STASNDBY;
+
+ switch (opmode) {
+ case MODES_TORCH:
+ ret = regmap_update_bits(chip->regmap, REG_I_CTRL,
+ TORCH_I_MASK << TORCH_I_SHIFT,
+ (brightness - 1) << TORCH_I_SHIFT);
+
+ if (chip->torch_pin)
+ opmode |= (TORCH_PIN_EN_MASK << TORCH_PIN_EN_SHIFT);
+ break;
+
+ case MODES_FLASH:
+ ret = regmap_update_bits(chip->regmap, REG_I_CTRL,
+ FLASH_I_MASK << FLASH_I_SHIFT,
+ (brightness - 1) << FLASH_I_SHIFT);
+
+ if (chip->strobe_pin)
+ opmode |= (STROBE_PIN_EN_MASK << STROBE_PIN_EN_SHIFT);
+ break;
+
+ case MODES_INDIC:
+ ret = regmap_update_bits(chip->regmap, REG_I_CTRL,
+ TORCH_I_MASK << TORCH_I_SHIFT,
+ (brightness - 1) << TORCH_I_SHIFT);
+ break;
+
+ case MODES_STASNDBY:
+
+ break;
+
+ default:
+ return ret;
+ }
+ if (ret < 0) {
+ dev_err(chip->dev, "Failed to write REG_I_CTRL Register\n");
+ goto out;
+ }
+
+ if (chip->tx_pin)
+ opmode |= (TX_PIN_EN_MASK << TX_PIN_EN_SHIFT);
+
+ ret = regmap_update_bits(chip->regmap, REG_ENABLE,
+ MODE_BITS_MASK << MODE_BITS_SHIFT,
+ opmode << MODE_BITS_SHIFT);
+out:
+ return ret;
+}
+
+/* torch */
+
+/* torch pin config for lm3642*/
+static ssize_t lm3642_torch_pin_store(struct device *dev,
+ struct device_attribute *devAttr,
+ const char *buf, size_t size)
+{
+ ssize_t ret;
+ struct led_classdev *led_cdev = dev_get_drvdata(dev);
+ struct lm3642_chip_data *chip =
+ container_of(led_cdev, struct lm3642_chip_data, cdev_indicator);
+ unsigned int state;
+
+ ret = kstrtouint(buf, 10, &state);
+ if (ret)
+ goto out_strtoint;
+ if (state != 0)
+ state = 0x01 << TORCH_PIN_EN_SHIFT;
+
+ chip->torch_pin = state;
+ ret = regmap_update_bits(chip->regmap, REG_ENABLE,
+ TORCH_PIN_EN_MASK << TORCH_PIN_EN_SHIFT,
+ state);
+ if (ret < 0)
+ goto out;
+
+ return size;
+out:
+ dev_err(chip->dev, "%s:i2c access fail to register\n", __func__);
+ return size;
+out_strtoint:
+ dev_err(chip->dev, "%s: fail to change str to int\n", __func__);
+ return size;
+}
+
+static DEVICE_ATTR(torch_pin, 0666, NULL, lm3642_torch_pin_store);
+
+static void lm3642_deferred_torch_brightness_set(struct work_struct *work)
+{
+ struct lm3642_chip_data *chip =
+ container_of(work, struct lm3642_chip_data, work_torch);
+
+ mutex_lock(&chip->lock);
+ lm3642_control(chip, chip->br_torch, MODES_TORCH);
+ mutex_unlock(&chip->lock);
+}
+
+static void lm3642_torch_brightness_set(struct led_classdev *cdev,
+ enum led_brightness brightness)
+{
+ struct lm3642_chip_data *chip =
+ container_of(cdev, struct lm3642_chip_data, cdev_torch);
+
+ chip->br_torch = brightness;
+ schedule_work(&chip->work_torch);
+}
+
+/* flash */
+
+/* strobe pin config for lm3642*/
+static ssize_t lm3642_strobe_pin_store(struct device *dev,
+ struct device_attribute *devAttr,
+ const char *buf, size_t size)
+{
+ ssize_t ret;
+ struct led_classdev *led_cdev = dev_get_drvdata(dev);
+ struct lm3642_chip_data *chip =
+ container_of(led_cdev, struct lm3642_chip_data, cdev_indicator);
+ unsigned int state;
+
+ ret = kstrtouint(buf, 10, &state);
+ if (ret)
+ goto out_strtoint;
+ if (state != 0)
+ state = 0x01 << STROBE_PIN_EN_SHIFT;
+
+ chip->strobe_pin = state;
+ ret = regmap_update_bits(chip->regmap, REG_ENABLE,
+ STROBE_PIN_EN_MASK << STROBE_PIN_EN_SHIFT,
+ state);
+ if (ret < 0)
+ goto out;
+
+ return size;
+out:
+ dev_err(chip->dev, "%s:i2c access fail to register\n", __func__);
+ return size;
+out_strtoint:
+ dev_err(chip->dev, "%s: fail to change str to int\n", __func__);
+ return size;
+}
+
+static DEVICE_ATTR(strobe_pin, 0666, NULL, lm3642_strobe_pin_store);
+
+static void lm3642_deferred_strobe_brightness_set(struct work_struct *work)
+{
+ struct lm3642_chip_data *chip =
+ container_of(work, struct lm3642_chip_data, work_flash);
+
+ mutex_lock(&chip->lock);
+ lm3642_control(chip, chip->br_flash, MODES_FLASH);
+ mutex_unlock(&chip->lock);
+}
+
+static void lm3642_strobe_brightness_set(struct led_classdev *cdev,
+ enum led_brightness brightness)
+{
+ struct lm3642_chip_data *chip =
+ container_of(cdev, struct lm3642_chip_data, cdev_flash);
+
+ chip->br_flash = brightness;
+ schedule_work(&chip->work_flash);
+}
+
+/* indicator */
+static void lm3642_deferred_indicator_brightness_set(struct work_struct *work)
+{
+ struct lm3642_chip_data *chip =
+ container_of(work, struct lm3642_chip_data, work_indicator);
+
+ mutex_lock(&chip->lock);
+ lm3642_control(chip, chip->br_indicator, MODES_INDIC);
+ mutex_unlock(&chip->lock);
+}
+
+static void lm3642_indicator_brightness_set(struct led_classdev *cdev,
+ enum led_brightness brightness)
+{
+ struct lm3642_chip_data *chip =
+ container_of(cdev, struct lm3642_chip_data, cdev_indicator);
+
+ chip->br_indicator = brightness;
+ schedule_work(&chip->work_indicator);
+}
+
+static const struct regmap_config lm3642_regmap = {
+ .reg_bits = 8,
+ .val_bits = 8,
+ .max_register = REG_MAX,
+};
+
+static int __devinit lm3642_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
+{
+ struct lm3642_platform_data *pdata = client->dev.platform_data;
+ struct lm3642_chip_data *chip;
+
+ int err;
+
+ if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) {
+ dev_err(&client->dev, "i2c functionality check fail.\n");
+ return -EOPNOTSUPP;
+ }
+
+ if (pdata == NULL) {
+ dev_err(&client->dev, "needs Platform Data.\n");
+ return -ENODATA;
+ }
+
+ chip = devm_kzalloc(&client->dev,
+ sizeof(struct lm3642_chip_data), GFP_KERNEL);
+ if (!chip)
+ return -ENOMEM;
+
+ chip->dev = &client->dev;
+ chip->pdata = pdata;
+
+ chip->tx_pin = pdata->tx_pin;
+ chip->torch_pin = pdata->torch_pin;
+ chip->strobe_pin = pdata->strobe_pin;
+
+ chip->regmap = devm_regmap_init_i2c(client, &lm3642_regmap);
+ if (IS_ERR(chip->regmap)) {
+ err = PTR_ERR(chip->regmap);
+ dev_err(&client->dev, "Failed to allocate register map: %d\n",
+ err);
+ return err;
+ }
+
+ mutex_init(&chip->lock);
+ i2c_set_clientdata(client, chip);
+
+ err = lm3642_chip_init(chip);
+ if (err < 0)
+ goto err_out;
+
+ /* flash */
+ INIT_WORK(&chip->work_flash, lm3642_deferred_strobe_brightness_set);
+ chip->cdev_flash.name = "flash";
+ chip->cdev_flash.max_brightness = 16;
+ chip->cdev_flash.brightness_set = lm3642_strobe_brightness_set;
+ err = led_classdev_register((struct device *)
+ &client->dev, &chip->cdev_flash);
+ if (err < 0) {
+ dev_err(chip->dev, "failed to register flash\n");
+ goto err_out;
+ }
+ err = device_create_file(chip->cdev_flash.dev, &dev_attr_strobe_pin);
+ if (err < 0) {
+ dev_err(chip->dev, "failed to create strobe-pin file\n");
+ goto err_create_flash_pin_file;
+ }
+
+ /* torch */
+ INIT_WORK(&chip->work_torch, lm3642_deferred_torch_brightness_set);
+ chip->cdev_torch.name = "torch";
+ chip->cdev_torch.max_brightness = 8;
+ chip->cdev_torch.brightness_set = lm3642_torch_brightness_set;
+ err = led_classdev_register((struct device *)
+ &client->dev, &chip->cdev_torch);
+ if (err < 0) {
+ dev_err(chip->dev, "failed to register torch\n");
+ goto err_create_torch_file;
+ }
+ err = device_create_file(chip->cdev_torch.dev, &dev_attr_torch_pin);
+ if (err < 0) {
+ dev_err(chip->dev, "failed to create torch-pin file\n");
+ goto err_create_torch_pin_file;
+ }
+
+ /* indicator */
+ INIT_WORK(&chip->work_indicator,
+ lm3642_deferred_indicator_brightness_set);
+ chip->cdev_indicator.name = "indicator";
+ chip->cdev_indicator.max_brightness = 8;
+ chip->cdev_indicator.brightness_set = lm3642_indicator_brightness_set;
+ err = led_classdev_register((struct device *)
+ &client->dev, &chip->cdev_indicator);
+ if (err < 0) {
+ dev_err(chip->dev, "failed to register indicator\n");
+ goto err_create_indicator_file;
+ }
+
+ dev_info(&client->dev, "LM3642 is initialized\n");
+ return 0;
+
+err_create_indicator_file:
+ device_remove_file(chip->cdev_torch.dev, &dev_attr_torch_pin);
+err_create_torch_pin_file:
+ led_classdev_unregister(&chip->cdev_torch);
+err_create_torch_file:
+ device_remove_file(chip->cdev_flash.dev, &dev_attr_strobe_pin);
+err_create_flash_pin_file:
+ led_classdev_unregister(&chip->cdev_flash);
+err_out:
+ return err;
+}
+
+static int __devexit lm3642_remove(struct i2c_client *client)
+{
+ struct lm3642_chip_data *chip = i2c_get_clientdata(client);
+
+ led_classdev_unregister(&chip->cdev_indicator);
+ flush_work(&chip->work_indicator);
+ device_remove_file(chip->cdev_torch.dev, &dev_attr_torch_pin);
+ led_classdev_unregister(&chip->cdev_torch);
+ flush_work(&chip->work_torch);
+ device_remove_file(chip->cdev_flash.dev, &dev_attr_strobe_pin);
+ led_classdev_unregister(&chip->cdev_flash);
+ flush_work(&chip->work_flash);
+ regmap_write(chip->regmap, REG_ENABLE, 0);
+ return 0;
+}
+
+static const struct i2c_device_id lm3642_id[] = {
+ {LM3642_NAME, 0},
+ {}
+};
+
+MODULE_DEVICE_TABLE(i2c, lm3642_id);
+
+static struct i2c_driver lm3642_i2c_driver = {
+ .driver = {
+ .name = LM3642_NAME,
+ .owner = THIS_MODULE,
+ .pm = NULL,
+ },
+ .probe = lm3642_probe,
+ .remove = __devexit_p(lm3642_remove),
+ .id_table = lm3642_id,
+};
+
+module_i2c_driver(lm3642_i2c_driver);
+
+MODULE_DESCRIPTION("Texas Instruments Flash Lighting driver for LM3642");
+MODULE_AUTHOR("Daniel Jeong <daniel.jeong@ti.com>");
+MODULE_AUTHOR("G.Shark Jeong <gshark.jeong@gmail.com>");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/leds/leds-lp5523.c b/drivers/leds/leds-lp5523.c
index fbc12acada95..97994ffdc014 100644
--- a/drivers/leds/leds-lp5523.c
+++ b/drivers/leds/leds-lp5523.c
@@ -104,6 +104,11 @@
#define LED_ACTIVE(mux, led) (!!(mux & (0x0001 << led)))
#define SHIFT_MASK(id) (((id) - 1) * 2)
+enum lp5523_chip_id {
+ LP5523,
+ LP55231,
+};
+
struct lp5523_engine {
int id;
u8 mode;
@@ -150,7 +155,7 @@ static inline struct lp5523_chip *led_to_lp5523(struct lp5523_led *led)
leds[led->id]);
}
-static int lp5523_set_mode(struct lp5523_engine *engine, u8 mode);
+static void lp5523_set_mode(struct lp5523_engine *engine, u8 mode);
static int lp5523_set_engine_mode(struct lp5523_engine *engine, u8 mode);
static int lp5523_load_program(struct lp5523_engine *engine, const u8 *pattern);
@@ -177,7 +182,7 @@ static int lp5523_detect(struct i2c_client *client)
int ret;
u8 buf;
- ret = lp5523_write(client, LP5523_REG_ENABLE, 0x40);
+ ret = lp5523_write(client, LP5523_REG_ENABLE, LP5523_ENABLE);
if (ret)
return ret;
ret = lp5523_read(client, LP5523_REG_ENABLE, &buf);
@@ -338,7 +343,8 @@ static int lp5523_mux_parse(const char *buf, u16 *mux, size_t len)
{
int i;
u16 tmp_mux = 0;
- len = len < LP5523_LEDS ? len : LP5523_LEDS;
+
+ len = min_t(int, len, LP5523_LEDS);
for (i = 0; i < len; i++) {
switch (buf[i]) {
case '1':
@@ -546,6 +552,9 @@ static int lp5523_do_store_load(struct lp5523_engine *engine,
unsigned cmd;
u8 pattern[LP5523_PROGRAM_LENGTH] = {0};
+ if (engine->mode != LP5523_CMD_LOAD)
+ return -EINVAL;
+
while ((offset < len - 1) && (i < LP5523_PROGRAM_LENGTH)) {
/* separate sscanfs because length is working only for %s */
ret = sscanf(buf + offset, "%2s%n ", c, &nrchars);
@@ -563,12 +572,7 @@ static int lp5523_do_store_load(struct lp5523_engine *engine,
goto fail;
mutex_lock(&chip->lock);
-
- if (engine->mode == LP5523_CMD_LOAD)
- ret = lp5523_load_program(engine, pattern);
- else
- ret = -EINVAL;
-
+ ret = lp5523_load_program(engine, pattern);
mutex_unlock(&chip->lock);
if (ret) {
@@ -755,6 +759,7 @@ static struct attribute *lp5523_attributes[] = {
&dev_attr_engine2_leds.attr,
&dev_attr_engine3_load.attr,
&dev_attr_engine3_leds.attr,
+ NULL,
};
static const struct attribute_group lp5523_group = {
@@ -789,26 +794,28 @@ static void lp5523_unregister_sysfs(struct i2c_client *client)
/*--------------------------------------------------------------*/
/* Set chip operating mode */
/*--------------------------------------------------------------*/
-static int lp5523_set_mode(struct lp5523_engine *engine, u8 mode)
+static void lp5523_set_mode(struct lp5523_engine *engine, u8 mode)
{
- int ret = 0;
-
/* if in that mode already do nothing, except for run */
if (mode == engine->mode && mode != LP5523_CMD_RUN)
- return 0;
+ return;
- if (mode == LP5523_CMD_RUN) {
- ret = lp5523_run_program(engine);
- } else if (mode == LP5523_CMD_LOAD) {
+ switch (mode) {
+ case LP5523_CMD_RUN:
+ lp5523_run_program(engine);
+ break;
+ case LP5523_CMD_LOAD:
lp5523_set_engine_mode(engine, LP5523_CMD_DISABLED);
lp5523_set_engine_mode(engine, LP5523_CMD_LOAD);
- } else if (mode == LP5523_CMD_DISABLED) {
+ break;
+ case LP5523_CMD_DISABLED:
lp5523_set_engine_mode(engine, LP5523_CMD_DISABLED);
+ break;
+ default:
+ return;
}
engine->mode = mode;
-
- return ret;
}
/*--------------------------------------------------------------*/
@@ -827,7 +834,8 @@ static int __init lp5523_init_engine(struct lp5523_engine *engine, int id)
}
static int __devinit lp5523_init_led(struct lp5523_led *led, struct device *dev,
- int chan, struct lp5523_platform_data *pdata)
+ int chan, struct lp5523_platform_data *pdata,
+ const char *chip_name)
{
char name[32];
int res;
@@ -846,10 +854,14 @@ static int __devinit lp5523_init_led(struct lp5523_led *led, struct device *dev,
return -EINVAL;
}
- snprintf(name, sizeof(name), "%s:channel%d",
- pdata->label ?: "lp5523", chan);
+ if (pdata->led_config[chan].name) {
+ led->cdev.name = pdata->led_config[chan].name;
+ } else {
+ snprintf(name, sizeof(name), "%s:channel%d",
+ pdata->label ? : chip_name, chan);
+ led->cdev.name = name;
+ }
- led->cdev.name = name;
led->cdev.brightness_set = lp5523_set_brightness;
res = led_classdev_register(dev, &led->cdev);
if (res < 0) {
@@ -917,7 +929,7 @@ static int __devinit lp5523_probe(struct i2c_client *client,
if (ret)
goto fail1;
- dev_info(&client->dev, "LP5523 Programmable led chip found\n");
+ dev_info(&client->dev, "%s Programmable led chip found\n", id->name);
/* Initialize engines */
for (i = 0; i < ARRAY_SIZE(chip->engines); i++) {
@@ -945,7 +957,8 @@ static int __devinit lp5523_probe(struct i2c_client *client,
INIT_WORK(&chip->leds[led].brightness_work,
lp5523_led_brightness_work);
- ret = lp5523_init_led(&chip->leds[led], &client->dev, i, pdata);
+ ret = lp5523_init_led(&chip->leds[led], &client->dev, i, pdata,
+ id->name);
if (ret) {
dev_err(&client->dev, "error initializing leds\n");
goto fail2;
@@ -970,7 +983,7 @@ static int __devinit lp5523_probe(struct i2c_client *client,
fail2:
for (i = 0; i < chip->num_leds; i++) {
led_classdev_unregister(&chip->leds[i].cdev);
- cancel_work_sync(&chip->leds[i].brightness_work);
+ flush_work(&chip->leds[i].brightness_work);
}
fail1:
if (pdata->enable)
@@ -985,11 +998,14 @@ static int lp5523_remove(struct i2c_client *client)
struct lp5523_chip *chip = i2c_get_clientdata(client);
int i;
+ /* Disable engine mode */
+ lp5523_write(client, LP5523_REG_OP_MODE, LP5523_CMD_DISABLED);
+
lp5523_unregister_sysfs(client);
for (i = 0; i < chip->num_leds; i++) {
led_classdev_unregister(&chip->leds[i].cdev);
- cancel_work_sync(&chip->leds[i].brightness_work);
+ flush_work(&chip->leds[i].brightness_work);
}
if (chip->pdata->enable)
@@ -1000,7 +1016,8 @@ static int lp5523_remove(struct i2c_client *client)
}
static const struct i2c_device_id lp5523_id[] = {
- { "lp5523", 0 },
+ { "lp5523", LP5523 },
+ { "lp55231", LP55231 },
{ }
};
@@ -1008,7 +1025,7 @@ MODULE_DEVICE_TABLE(i2c, lp5523_id);
static struct i2c_driver lp5523_driver = {
.driver = {
- .name = "lp5523",
+ .name = "lp5523x",
},
.probe = lp5523_probe,
.remove = lp5523_remove,
diff --git a/drivers/leds/leds-pca9633.c b/drivers/leds/leds-pca9633.c
index edcd706c5631..2f2f9c43535d 100644
--- a/drivers/leds/leds-pca9633.c
+++ b/drivers/leds/leds-pca9633.c
@@ -22,6 +22,7 @@
#include <linux/i2c.h>
#include <linux/workqueue.h>
#include <linux/slab.h>
+#include <linux/platform_data/leds-pca9633.h>
/* LED select registers determine the source that drives LED outputs */
#define PCA9633_LED_OFF 0x0 /* LED driver off */
@@ -96,13 +97,13 @@ static int __devinit pca9633_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
struct pca9633_led *pca9633;
- struct led_platform_data *pdata;
+ struct pca9633_platform_data *pdata;
int i, err;
pdata = client->dev.platform_data;
if (pdata) {
- if (pdata->num_leds <= 0 || pdata->num_leds > 4) {
+ if (pdata->leds.num_leds <= 0 || pdata->leds.num_leds > 4) {
dev_err(&client->dev, "board info must claim at most 4 LEDs");
return -EINVAL;
}
@@ -119,14 +120,14 @@ static int __devinit pca9633_probe(struct i2c_client *client,
pca9633[i].led_num = i;
/* Platform data can specify LED names and default triggers */
- if (pdata && i < pdata->num_leds) {
- if (pdata->leds[i].name)
+ if (pdata && i < pdata->leds.num_leds) {
+ if (pdata->leds.leds[i].name)
snprintf(pca9633[i].name,
sizeof(pca9633[i].name), "pca9633:%s",
- pdata->leds[i].name);
- if (pdata->leds[i].default_trigger)
+ pdata->leds.leds[i].name);
+ if (pdata->leds.leds[i].default_trigger)
pca9633[i].led_cdev.default_trigger =
- pdata->leds[i].default_trigger;
+ pdata->leds.leds[i].default_trigger;
} else {
snprintf(pca9633[i].name, sizeof(pca9633[i].name),
"pca9633:%d", i);
@@ -145,6 +146,10 @@ static int __devinit pca9633_probe(struct i2c_client *client,
/* Disable LED all-call address and set normal mode */
i2c_smbus_write_byte_data(client, PCA9633_MODE1, 0x00);
+ /* Configure output: open-drain or totem pole (push-pull) */
+ if (pdata && pdata->outdrv == PCA9633_OPEN_DRAIN)
+ i2c_smbus_write_byte_data(client, PCA9633_MODE2, 0x01);
+
/* Turn off LEDs */
i2c_smbus_write_byte_data(client, PCA9633_LEDOUT, 0x00);
diff --git a/drivers/leds/leds-wm8350.c b/drivers/leds/leds-wm8350.c
index 4c62113f7a77..88f23f845595 100644
--- a/drivers/leds/leds-wm8350.c
+++ b/drivers/leds/leds-wm8350.c
@@ -201,7 +201,7 @@ static int wm8350_led_probe(struct platform_device *pdev)
struct regulator *isink, *dcdc;
struct wm8350_led *led;
struct wm8350_led_platform_data *pdata = pdev->dev.platform_data;
- int ret, i;
+ int i;
if (pdata == NULL) {
dev_err(&pdev->dev, "no platform data\n");
@@ -214,24 +214,21 @@ static int wm8350_led_probe(struct platform_device *pdev)
return -EINVAL;
}
- isink = regulator_get(&pdev->dev, "led_isink");
+ isink = devm_regulator_get(&pdev->dev, "led_isink");
if (IS_ERR(isink)) {
printk(KERN_ERR "%s: can't get ISINK\n", __func__);
return PTR_ERR(isink);
}
- dcdc = regulator_get(&pdev->dev, "led_vcc");
+ dcdc = devm_regulator_get(&pdev->dev, "led_vcc");
if (IS_ERR(dcdc)) {
printk(KERN_ERR "%s: can't get DCDC\n", __func__);
- ret = PTR_ERR(dcdc);
- goto err_isink;
+ return PTR_ERR(dcdc);
}
led = devm_kzalloc(&pdev->dev, sizeof(*led), GFP_KERNEL);
- if (led == NULL) {
- ret = -ENOMEM;
- goto err_dcdc;
- }
+ if (led == NULL)
+ return -ENOMEM;
led->cdev.brightness_set = wm8350_led_set;
led->cdev.default_trigger = pdata->default_trigger;
@@ -257,17 +254,7 @@ static int wm8350_led_probe(struct platform_device *pdev)
led->value = LED_OFF;
platform_set_drvdata(pdev, led);
- ret = led_classdev_register(&pdev->dev, &led->cdev);
- if (ret < 0)
- goto err_dcdc;
-
- return 0;
-
- err_dcdc:
- regulator_put(dcdc);
- err_isink:
- regulator_put(isink);
- return ret;
+ return led_classdev_register(&pdev->dev, &led->cdev);
}
static int wm8350_led_remove(struct platform_device *pdev)
@@ -277,8 +264,6 @@ static int wm8350_led_remove(struct platform_device *pdev)
led_classdev_unregister(&led->cdev);
flush_work(&led->work);
wm8350_led_disable(led);
- regulator_put(led->dcdc);
- regulator_put(led->isink);
return 0;
}
diff --git a/drivers/leds/leds.h b/drivers/leds/leds.h
index d02acd496126..4c50365344a9 100644
--- a/drivers/leds/leds.h
+++ b/drivers/leds/leds.h
@@ -32,6 +32,8 @@ static inline int led_get_brightness(struct led_classdev *led_cdev)
return led_cdev->brightness;
}
+void led_stop_software_blink(struct led_classdev *led_cdev);
+
extern struct rw_semaphore leds_list_lock;
extern struct list_head leds_list;
generated by cgit v1.2.3 (git 2.39.0) at 2024-11-27 23:42:40 +0300