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>
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@ -1070,30 +1070,8 @@ static int s3c_fb_ioctl(struct fb_info *info, unsigned int cmd,
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return ret;
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}
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static int s3c_fb_open(struct fb_info *info, int user)
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{
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struct s3c_fb_win *win = info->par;
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struct s3c_fb *sfb = win->parent;
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pm_runtime_get_sync(sfb->dev);
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return 0;
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}
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static int s3c_fb_release(struct fb_info *info, int user)
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{
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struct s3c_fb_win *win = info->par;
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struct s3c_fb *sfb = win->parent;
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pm_runtime_put_sync(sfb->dev);
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return 0;
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}
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static struct fb_ops s3c_fb_ops = {
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.owner = THIS_MODULE,
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.fb_open = s3c_fb_open,
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.fb_release = s3c_fb_release,
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.fb_check_var = s3c_fb_check_var,
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.fb_set_par = s3c_fb_set_par,
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.fb_blank = s3c_fb_blank,
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