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backlight: da903x_bl: use BL_CORE_SUSPENDRESUME option

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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>
This commit is contained in:
Jingoo Han 2013-04-29 16:17:51 -07:00 committed by Linus Torvalds
parent 4cfbfa9714
commit d1720b57f3
1 changed files with 5 additions and 25 deletions
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30
drivers/video/backlight/da903x_bl.c
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@ -88,16 +88,21 @@ static int da903x_backlight_update_status(struct backlight_device *bl)
if (bl->props.fb_blank != FB_BLANK_UNBLANK) if (bl->props.fb_blank != FB_BLANK_UNBLANK)
brightness = 0; brightness = 0;
if (bl->props.state & BL_CORE_SUSPENDED)
brightness = 0;
return da903x_backlight_set(bl, brightness); return da903x_backlight_set(bl, brightness);
} }
static int da903x_backlight_get_brightness(struct backlight_device *bl) static int da903x_backlight_get_brightness(struct backlight_device *bl)
{ {
struct da903x_backlight_data *data = bl_get_data(bl); struct da903x_backlight_data *data = bl_get_data(bl);
return data->current_brightness; return data->current_brightness;
} }
static const struct backlight_ops da903x_backlight_ops = { static const struct backlight_ops da903x_backlight_ops = {
.options = BL_CORE_SUSPENDRESUME,
.update_status = da903x_backlight_update_status, .update_status = da903x_backlight_update_status,
.get_brightness = da903x_backlight_get_brightness, .get_brightness = da903x_backlight_get_brightness,
}; };
@ -161,35 +166,10 @@ static int da903x_backlight_remove(struct platform_device *pdev)
return 0; 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 = { static struct platform_driver da903x_backlight_driver = {
.driver = { .driver = {
.name = "da903x-backlight", .name = "da903x-backlight",
.owner = THIS_MODULE, .owner = THIS_MODULE,
#ifdef CONFIG_PM
.pm = &da903x_backlight_pm_ops,
#endif
}, },
.probe = da903x_backlight_probe, .probe = da903x_backlight_probe,
.remove = da903x_backlight_remove, .remove = da903x_backlight_remove,