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authorJingoo Han <jg1.han@samsung.com>2013-04-29 16:17:51 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2013-04-29 18:28:17 -0700
commitd1720b57f3b241d83a50802257eb52fb7ec03ddc (patch)
tree097144cda9f265064e3dcbe12c6167f430b3ccad
parent4cfbfa9714789d4bed3ea93859e36c2e04ac4b30 (diff)
backlight: da903x_bl: use BL_CORE_SUSPENDRESUME option
Use BL_CORE_SUSPENDRESUME option to support suspend/resume. It reduces code size. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Cc: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
-rw-r--r--drivers/video/backlight/da903x_bl.c30
1 files changed, 5 insertions, 25 deletions
diff --git a/drivers/video/backlight/da903x_bl.c b/drivers/video/backlight/da903x_bl.c
index 8179cef0730f..67cadd30e273 100644
--- a/drivers/video/backlight/da903x_bl.c
+++ b/drivers/video/backlight/da903x_bl.c
@@ -88,16 +88,21 @@ static int da903x_backlight_update_status(struct backlight_device *bl)
if (bl->props.fb_blank != FB_BLANK_UNBLANK)
brightness = 0;
+ if (bl->props.state & BL_CORE_SUSPENDED)
+ brightness = 0;
+
return da903x_backlight_set(bl, brightness);
}
static int da903x_backlight_get_brightness(struct backlight_device *bl)
{
struct da903x_backlight_data *data = bl_get_data(bl);
+
return data->current_brightness;
}
static const struct backlight_ops da903x_backlight_ops = {
+ .options = BL_CORE_SUSPENDRESUME,
.update_status = da903x_backlight_update_status,
.get_brightness = da903x_backlight_get_brightness,
};
@@ -161,35 +166,10 @@ static int da903x_backlight_remove(struct platform_device *pdev)
return 0;
}
-#ifdef CONFIG_PM
-static int da903x_backlight_suspend(struct device *dev)
-{
- struct backlight_device *bl = dev_get_drvdata(dev);
-
- return da903x_backlight_set(bl, 0);
-}
-
-static int da903x_backlight_resume(struct device *dev)
-{
- struct backlight_device *bl = dev_get_drvdata(dev);
-
- backlight_update_status(bl);
- return 0;
-}
-
-static const struct dev_pm_ops da903x_backlight_pm_ops = {
- .suspend = da903x_backlight_suspend,
- .resume = da903x_backlight_resume,
-};
-#endif
-
static struct platform_driver da903x_backlight_driver = {
.driver = {
.name = "da903x-backlight",
.owner = THIS_MODULE,
-#ifdef CONFIG_PM
- .pm = &da903x_backlight_pm_ops,
-#endif
},
.probe = da903x_backlight_probe,
.remove = da903x_backlight_remove,