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SubjectRE: [PATCH 6/6] video: s3c-fb: Don't keep device runtime active when open
Date
> -----Original Message-----
> From: Mark Brown [mailto:broonie@opensource.wolfsonmicro.com]
> Sent: Tuesday, December 27, 2011 11:16 PM
> To: Jingoo Han; Florian Tobias Schandinat
> Cc: linux-fbdev@vger.kernel.org; linux-kernel@vger.kernel.org; Mark Brown
> Subject: [PATCH 6/6] 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>

> ---
> drivers/video/s3c-fb.c | 22 ----------------------
> 1 files changed, 0 insertions(+), 22 deletions(-)
>
> diff --git a/drivers/video/s3c-fb.c b/drivers/video/s3c-fb.c
> index 84cf631..0c63b69 100644
> --- 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,
> --
> 1.7.7.3



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