brain-hackers_pepepper-mirror/linux-brain
1
0
Fork 0
mirror of https://github.com/brain-hackers/linux-brain.git synced 2024-06-09 23:36:23 +09:00
Code Issues Projects Releases Wiki Activity

drm/msm: mdp4: drop vblank get/put from prepare/complete_commit

Browse Source 
[ Upstream commit 56bd931ae506730c9ab1e4cc4bfefa43fc2d18fa ]

msm_atomic is doing vblank get/put's already,
currently there no need to duplicate the effort in MDP4

Fix warning:
...
WARNING: CPU: 3 PID: 79 at drivers/gpu/drm/drm_vblank.c:1194 drm_vblank_put+0x1cc/0x1d4
...
and multiple vblank time-outs:
...
msm 5100000.mdp: vblank time out, crtc=1
...

Tested on Nexus 7 2013 (deb), LTS 5.10.50.

Introduced by: 119ecb7fd3 ("drm/msm/mdp4: request vblank during modeset")

Signed-off-by: David Heidelberg <david@ixit.cz>
Link: https://lore.kernel.org/r/20210715060925.7880-1-david@ixit.cz
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Rob Clark <robdclark@chromium.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
David Heidelberg 2021-07-15 08:09:25 +02:00 committed by Greg Kroah-Hartman
parent e545080477
commit 350e7501ee
1 changed files with 0 additions and 13 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

13
drivers/gpu/drm/msm/disp/mdp4/mdp4_kms.c
View File

@ -108,13 +108,6 @@ static void mdp4_disable_commit(struct msm_kms *kms)
static void mdp4_prepare_commit(struct msm_kms *kms, struct drm_atomic_state *state)
{
int i;
struct drm_crtc *crtc;
struct drm_crtc_state *crtc_state;
/* see 119ecb7fd */
for_each_new_crtc_in_state(state, crtc, crtc_state, i)
drm_crtc_vblank_get(crtc);
}
static void mdp4_flush_commit(struct msm_kms *kms, unsigned crtc_mask)
@ -133,12 +126,6 @@ static void mdp4_wait_flush(struct msm_kms *kms, unsigned crtc_mask)
static void mdp4_complete_commit(struct msm_kms *kms, unsigned crtc_mask)
{
struct mdp4_kms *mdp4_kms = to_mdp4_kms(to_mdp_kms(kms));
struct drm_crtc *crtc;
/* see 119ecb7fd */
for_each_crtc_mask(mdp4_kms->dev, crtc, crtc_mask)
drm_crtc_vblank_put(crtc);
}
static long mdp4_round_pixclk(struct msm_kms *kms, unsigned long rate,