There is currently a race condition occuring when accessing
vblank_refcount. Therefore, vblank irq timeouts may occur.
Avoid any vblank irq timeouts by stablizing the use of vblank_refcount.
Changes from prior versions:
v2: - Slightly changed wording of patch #2 commit message
v3: - Mistakenly did not change wording of patch #2 in last version.
It is done now.
Paloma Arellano (2):
drm/msm/dpu: Modify vblank_refcount if error in callback
drm/msm/dpu: Add mutex lock in control vblank irq
drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c | 6 ++++++
drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys.h | 6 ++++++
drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys_cmd.c | 11 +++++++++--
drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys_vid.c | 11 +++++++++--
4 files changed, 30 insertions(+), 4 deletions(-)
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2.41.0
