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    Subject[PATCH 6/6] video: s3c-fb: Don't keep device runtime active when open
    Date
    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>
    ---
    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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