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msm: mdss: check for fb node refcount before calling null commit

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Add a frame buffer reference count check before calling
null commit to release the free list pipes. This avoids
unnecessary flickering on screen if a process tries to open
and close the fb node without performing any operation.

Change-Id: I96b824edccf27f0ddb796c420ef1feb49f65ddea
Signed-off-by: Dhaval Patel <pdhaval@codeaurora.org>
This commit is contained in:
Dhaval Patel 2014-05-16 11:53:13 -07:00 • committed by David Keitel
parent 41211cdb1f
commit 903eef8201
1 changed files with 2 additions and 2 deletions
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4
drivers/video/fbdev/msm/mdss_mdp_overlay.c
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@ -1517,8 +1517,8 @@ static int __mdss_mdp_overlay_release_all(struct msm_fb_data_type *mfd,
}
}
if (cnt == 0 && !list_empty(&mdp5_data->pipes_cleanup)) {
pr_debug("overlay release on fb%d called without commit!",
if (!mfd->ref_cnt && !list_empty(&mdp5_data->pipes_cleanup)) {
pr_debug("fb%d:: free pipes present in cleanup list",
mfd->index);
cnt++;
}