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Commit e2f55b54 authored by Mark Brown's avatar Mark Brown Committed by Florian Tobias Schandinat
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video: s3c-fb: Don't keep device runtime active when open 



Allow the controller to be runtime suspended when the screen is blanked
by not taking a runtime reference while the device is open. This allows
greater system wide power savings when used with a standard application
layer and ensures that the screen does not blank unless requested.

Signed-off-by: default avatarMark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: default avatarJingoo Han <jg1.han@samsung.com>
Signed-off-by: default avatarFlorian Tobias Schandinat <FlorianSchandinat@gmx.de>
parent 5751b23e

drivers/video/s3c-fb.c

+0 −22
Original line number Diff line number Diff line
@@ -1070,30 +1070,8 @@ static int s3c_fb_ioctl(struct fb_info *info, unsigned int cmd, 
	return ret;

}



static int s3c_fb_open(struct fb_info *info, int user)

{

	struct s3c_fb_win *win = info->par;

	struct s3c_fb *sfb = win->parent;



	pm_runtime_get_sync(sfb->dev);



	return 0;

}



static int s3c_fb_release(struct fb_info *info, int user)

{

	struct s3c_fb_win *win = info->par;

	struct s3c_fb *sfb = win->parent;



	pm_runtime_put_sync(sfb->dev);



	return 0;

}



static struct fb_ops s3c_fb_ops = {

	.owner		= THIS_MODULE,

	.fb_open	= s3c_fb_open,

	.fb_release	= s3c_fb_release,

	.fb_check_var	= s3c_fb_check_var,

	.fb_set_par	= s3c_fb_set_par,

	.fb_blank	= s3c_fb_blank,