From 0767dc634d2b83c550d40751ff95cf7a81473c6e Mon Sep 17 00:00:00 2001 From: Jingoo Han Date: Wed, 20 Mar 2013 15:07:43 +1100 Subject: [PATCH] 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 Cc: Lars-Peter Clausen Signed-off-by: Andrew Morton --- drivers/video/backlight/da903x_bl.c | 30 +++++------------------------ 1 file 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, -- 2.39.5