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: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>

diff --git a/drivers/video/s3c-fb.c b/drivers/video/s3c-fb.c
index 84cf631..0c63b69 100644 (file)
--- a/drivers/video/s3c-fb.c
+++ b/drivers/video/s3c-fb.c
@@ -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,