drm/msm/dpu: fix CMD panels on DPU 1.x - 3.x

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DPU units before 4.x don't have a separate CTL_START IRQ to mark the
begin of the data transfer. In such a case, wait for the frame transfer
to complete rather than trying to wait for the CTL_START interrupt (and
obviously hitting the timeout).

Fixes: 050770cbbd ("drm/msm/dpu: Fix timeout issues on command mode panels")
Reported-by: Alexey Minnekhanov <alexeymin@postmarketos.org>
Closes: https://lore.kernel.org/r/8e1d33ff-d902-4ae9-9162-e00d17a5e6d1@postmarketos.org
Patchwork: https://patchwork.freedesktop.org/patch/696490/
Link: https://lore.kernel.org/r/20251228-mdp5-drop-dpu3-v4-2-7497c3d39179@oss.qualcomm.com
Tested-by: Alexey Minnekhanov <alexeymin@minlexx.ru>
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>

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Dmitry Baryshkov 2025-12-28 06:02:28 +02:00

parent f4a8e3a34e

commit 59ca3d11f5

1 changed files with 4 additions and 3 deletions

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7

drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys_cmd.c

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