github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-05-24 23:22:31 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity Graph

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

Browse Source 
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>
This commit is contained in:
Dmitry Baryshkov 2025-12-28 06:02:28 +02:00
parent f4a8e3a34e
commit 59ca3d11f5
1 changed files with 4 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys_cmd.c
View File

@ -681,10 +681,11 @@ static int dpu_encoder_phys_cmd_wait_for_commit_done(
if (!dpu_encoder_phys_cmd_is_master(phys_enc))
return 0;
if (phys_enc->hw_ctl->ops.is_started(phys_enc->hw_ctl))
return dpu_encoder_phys_cmd_wait_for_tx_complete(phys_enc);
if (phys_enc->irq[INTR_IDX_CTL_START] &&
!phys_enc->hw_ctl->ops.is_started(phys_enc->hw_ctl))
return _dpu_encoder_phys_cmd_wait_for_ctl_start(phys_enc);
return _dpu_encoder_phys_cmd_wait_for_ctl_start(phys_enc);
return dpu_encoder_phys_cmd_wait_for_tx_complete(phys_enc);
}
static void dpu_encoder_phys_cmd_handle_post_kickoff(