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leds: lm3642: Remove work queue 

Now the core implements the work queue, remove it from the driver,
and switch to using brightness_set_blocking op.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Cc: Daniel Jeong <daniel.jeong@ti.com>
Cc: G.Shark Jeong <gshark.jeong@gmail.com>
Signed-off-by: Jacek Anaszewski <j.anaszewski@samsung.com>
hifive-unleashed-5.1
Andrew Lunn 2015-08-20 12:05:54 +02:00 committed by Jacek Anaszewski
parent a478851c1f
commit bb58cc8141
1 changed files with 22 additions and 51 deletions
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73
drivers/leds/leds-lm3642.c
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@ -15,7 +15,6 @@
#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)
@ -73,10 +72,6 @@ struct lm3642_chip_data {
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;
@ -209,24 +204,18 @@ out_strtoint:
static DEVICE_ATTR(torch_pin, S_IWUSR, 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,
static int 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);
int ret;
mutex_lock(&chip->lock);
chip->br_torch = brightness;
schedule_work(&chip->work_torch);
ret = lm3642_control(chip, chip->br_torch, MODES_TORCH);
mutex_unlock(&chip->lock);
return ret;
}
/* flash */
@ -266,45 +255,33 @@ out_strtoint:
static DEVICE_ATTR(strobe_pin, S_IWUSR, 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,
static int 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);
int ret;
mutex_lock(&chip->lock);
chip->br_flash = brightness;
schedule_work(&chip->work_flash);
ret = lm3642_control(chip, chip->br_flash, MODES_FLASH);
mutex_unlock(&chip->lock);
return ret;
}
/* 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,
static int 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);
int ret;
mutex_lock(&chip->lock);
chip->br_indicator = brightness;
schedule_work(&chip->work_indicator);
ret = lm3642_control(chip, chip->br_indicator, MODES_INDIC);
mutex_unlock(&chip->lock);
return ret;
}
static const struct regmap_config lm3642_regmap = {
@ -371,10 +348,9 @@ static int lm3642_probe(struct i2c_client *client,
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;
chip->cdev_flash.brightness_set_blocking = lm3642_strobe_brightness_set;
chip->cdev_flash.default_trigger = "flash";
chip->cdev_flash.groups = lm3642_flash_groups,
err = led_classdev_register((struct device *)
@ -385,10 +361,9 @@ static int lm3642_probe(struct i2c_client *client,
}
/* 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;
chip->cdev_torch.brightness_set_blocking = lm3642_torch_brightness_set;
chip->cdev_torch.default_trigger = "torch";
chip->cdev_torch.groups = lm3642_torch_groups,
err = led_classdev_register((struct device *)
@ -399,11 +374,10 @@ static int lm3642_probe(struct i2c_client *client,
}
/* 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;
chip->cdev_indicator.brightness_set_blocking =
lm3642_indicator_brightness_set;
err = led_classdev_register((struct device *)
&client->dev, &chip->cdev_indicator);
if (err < 0) {
@ -427,11 +401,8 @@ static int 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);
led_classdev_unregister(&chip->cdev_torch);
flush_work(&chip->work_torch);
led_classdev_unregister(&chip->cdev_flash);
flush_work(&chip->work_flash);
regmap_write(chip->regmap, REG_ENABLE, 0);
return 0;
}