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Commit 04ca0870 authored by Nirmal Abraham's avatar Nirmal Abraham Committed by Gerrit - the friendly Code Review server
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fbdev: msm: update fb_release sequence 



Calling mdss_fb_pan_display from mdss_fb_release path can
result in commit cnt getting incremented resulting in UI freeze
issues due to difference between commit_cnt and release fence
count. To avoid this scenario, release the mdss overlay when
fb ref cnt is zero or there is a device shutdown.

Change-Id: Ibb6de7c712bda631ad9c9180af243661f3d51764
Signed-off-by: default avatarNirmal Abraham <nabrah@codeaurora.org>
parent 41539720

drivers/video/fbdev/msm/mdss_fb.c

+0 −8
Original line number Diff line number Diff line
@@ -2900,15 +2900,7 @@ static int mdss_fb_release_all(struct fb_info *info, bool release_all) 
			mdss_fb_free_fb_ion_memory(mfd);



		atomic_set(&mfd->ioctl_ref_cnt, 0);

	} else {

		if (mfd->mdp.release_fnc)

			ret = mfd->mdp.release_fnc(mfd, file);



		/* display commit is needed to release resources */

		if (ret)

			mdss_fb_pan_display(&mfd->fbi->var, mfd->fbi);

	}



	return ret;

}