leds: da9052: Remove work queue

Now the core implements the work queue, remove it from the drivers,
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>

diff --git a/drivers/leds/leds-da9052.c b/drivers/leds/leds-da9052.c
index 28291b6acc8e988dedcff54108998badce7c156f..f8c7d82c26529aea6e80b5b88d95e232a2cad706 100644 (file)
--- a/drivers/leds/leds-da9052.c
+++ b/drivers/leds/leds-da9052.c
@@ -16,7 +16,6 @@
 #include <linux/kernel.h>
 #include <linux/platform_device.h>
 #include <linux/leds.h>
-#include <linux/workqueue.h>
 #include <linux/slab.h>
 
 #include <linux/mfd/da9052/reg.h>
@@ -32,11 +31,9 @@
 
 struct da9052_led {
        struct led_classdev cdev;
-       struct work_struct work;
        struct da9052 *da9052;
        unsigned char led_index;
        unsigned char id;
-       int brightness;
 };
 
 static unsigned char led_reg[] = {
@@ -44,12 +41,13 @@ static unsigned char led_reg[] = {
        DA9052_LED_CONT_5_REG,
 };
 
-static int da9052_set_led_brightness(struct da9052_led *led)
+static int da9052_set_led_brightness(struct da9052_led *led,
+                                    enum led_brightness brightness)
 {
        u8 val;
        int error;
 
-       val = (led->brightness & 0x7f) | DA9052_LED_CONT_DIM;
+       val = (brightness & 0x7f) | DA9052_LED_CONT_DIM;
 
        error = da9052_reg_write(led->da9052, led_reg[led->led_index], val);
        if (error < 0)
@@ -58,21 +56,13 @@ static int da9052_set_led_brightness(struct da9052_led *led)
        return error;
 }
 
-static void da9052_led_work(struct work_struct *work)
-{
-       struct da9052_led *led = container_of(work, struct da9052_led, work);
-
-       da9052_set_led_brightness(led);
-}
-
-static void da9052_led_set(struct led_classdev *led_cdev,
+static int da9052_led_set(struct led_classdev *led_cdev,
                           enum led_brightness value)
 {
-       struct da9052_led *led;
+       struct da9052_led *led =
+                       container_of(led_cdev, struct da9052_led, cdev);
 
-       led = container_of(led_cdev, struct da9052_led, cdev);
-       led->brightness = value;
-       schedule_work(&led->work);
+       return da9052_set_led_brightness(led, value);
 }
 
 static int da9052_configure_leds(struct da9052 *da9052)
@@ -133,13 +123,11 @@ static int da9052_led_probe(struct platform_device *pdev)
 
        for (i = 0; i < pled->num_leds; i++) {
                led[i].cdev.name = pled->leds[i].name;
-               led[i].cdev.brightness_set = da9052_led_set;
+               led[i].cdev.brightness_set_blocking = da9052_led_set;
                led[i].cdev.brightness = LED_OFF;
                led[i].cdev.max_brightness = DA9052_MAX_BRIGHTNESS;
-               led[i].brightness = LED_OFF;
                led[i].led_index = pled->leds[i].flags;
                led[i].da9052 = dev_get_drvdata(pdev->dev.parent);
-               INIT_WORK(&led[i].work, da9052_led_work);
 
                error = led_classdev_register(pdev->dev.parent, &led[i].cdev);
                if (error) {
@@ -148,7 +136,8 @@ static int da9052_led_probe(struct platform_device *pdev)
                        goto err_register;
                }
 
-               error = da9052_set_led_brightness(&led[i]);
+               error = da9052_set_led_brightness(&led[i],
+                                                 led[i].cdev.brightness);
                if (error) {
                        dev_err(&pdev->dev, "Unable to init led %d\n",
                                led[i].led_index);
@@ -166,10 +155,8 @@ static int da9052_led_probe(struct platform_device *pdev)
        return 0;
 
 err_register:
-       for (i = i - 1; i >= 0; i--) {
+       for (i = i - 1; i >= 0; i--)
                led_classdev_unregister(&led[i].cdev);
-               cancel_work_sync(&led[i].work);
-       }
 err:
        return error;
 }
@@ -187,10 +174,8 @@ static int da9052_led_remove(struct platform_device *pdev)
        pled = pdata->pled;
 
        for (i = 0; i < pled->num_leds; i++) {
-               led[i].brightness = 0;
-               da9052_set_led_brightness(&led[i]);
+               da9052_set_led_brightness(&led[i], LED_OFF);
                led_classdev_unregister(&led[i].cdev);
-               cancel_work_sync(&led[i].work);
        }
 
        return 0;