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authorAndrew Lunn <andrew@lunn.ch>2015-08-20 12:41:01 +0300
committerJacek Anaszewski <j.anaszewski@samsung.com>2016-01-04 11:57:32 +0300
commitd890389f89bcdd5c45023721a48f8da2da563ea3 (patch)
treeb4c0886f10a0b4e22898ae8d503861d0d322e638 /drivers/leds/leds-tlc591xx.c
parentfa1706c42ec1b60c804a1214afc771bab0395aa3 (diff)
downloadlinux-d890389f89bcdd5c45023721a48f8da2da563ea3.tar.xz
leds: tlc591xx: 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> Signed-off-by: Jacek Anaszewski <j.anaszewski@samsung.com>
Diffstat (limited to 'drivers/leds/leds-tlc591xx.c')
-rw-r--r--drivers/leds/leds-tlc591xx.c31
1 files changed, 7 insertions, 24 deletions
diff --git a/drivers/leds/leds-tlc591xx.c b/drivers/leds/leds-tlc591xx.c
index b806eca83d27..304531644938 100644
--- a/drivers/leds/leds-tlc591xx.c
+++ b/drivers/leds/leds-tlc591xx.c
@@ -14,7 +14,6 @@
#include <linux/of_device.h>
#include <linux/regmap.h>
#include <linux/slab.h>
-#include <linux/workqueue.h>
#define TLC591XX_MAX_LEDS 16
@@ -42,13 +41,11 @@
#define LEDOUT_MASK 0x3
#define ldev_to_led(c) container_of(c, struct tlc591xx_led, ldev)
-#define work_to_led(work) container_of(work, struct tlc591xx_led, work)
struct tlc591xx_led {
bool active;
unsigned int led_no;
struct led_classdev ldev;
- struct work_struct work;
struct tlc591xx_priv *priv;
};
@@ -110,12 +107,12 @@ tlc591xx_set_pwm(struct tlc591xx_priv *priv, struct tlc591xx_led *led,
return regmap_write(priv->regmap, pwm, brightness);
}
-static void
-tlc591xx_led_work(struct work_struct *work)
+static int
+tlc591xx_brightness_set(struct led_classdev *led_cdev,
+ enum led_brightness brightness)
{
- struct tlc591xx_led *led = work_to_led(work);
+ struct tlc591xx_led *led = ldev_to_led(led_cdev);
struct tlc591xx_priv *priv = led->priv;
- enum led_brightness brightness = led->ldev.brightness;
int err;
switch (brightness) {
@@ -131,18 +128,7 @@ tlc591xx_led_work(struct work_struct *work)
err = tlc591xx_set_pwm(priv, led, brightness);
}
- if (err)
- dev_err(led->ldev.dev, "Failed setting brightness\n");
-}
-
-static void
-tlc591xx_brightness_set(struct led_classdev *led_cdev,
- enum led_brightness brightness)
-{
- struct tlc591xx_led *led = ldev_to_led(led_cdev);
-
- led->ldev.brightness = brightness;
- schedule_work(&led->work);
+ return err;
}
static void
@@ -151,10 +137,8 @@ tlc591xx_destroy_devices(struct tlc591xx_priv *priv, unsigned int j)
int i = j;
while (--i >= 0) {
- if (priv->leds[i].active) {
+ if (priv->leds[i].active)
led_classdev_unregister(&priv->leds[i].ldev);
- cancel_work_sync(&priv->leds[i].work);
- }
}
}
@@ -175,9 +159,8 @@ tlc591xx_configure(struct device *dev,
led->priv = priv;
led->led_no = i;
- led->ldev.brightness_set = tlc591xx_brightness_set;
+ led->ldev.brightness_set_blocking = tlc591xx_brightness_set;
led->ldev.max_brightness = LED_FULL;
- INIT_WORK(&led->work, tlc591xx_led_work);
err = led_classdev_register(dev, &led->ldev);
if (err < 0) {
dev_err(dev, "couldn't register LED %s\n",