[PATCH v2 0/6] drm/msm/dpu: various dpu resource allocation/release mismatch fix

[Xi Zhang via B4 Relay <devnull+xz.ca.cn.gmail.com@kernel.org>]

Hello,

Sorry for the quick v2, this version fixes issue found by
sashiko bot (Good AI!).

This series fixes various resource de-allocation issues in DPU
resource cleanup code. Aim is more reliable mode set, in particular
when multiple displays/encoders are connected, to avoid blue screen
or snowy dsc displays.

Tested with v7.3 + msm-next, on Ayaneo Pocket DS (SM8550 Kalama).
Changes are not device/chip specific.

---
Changes in v2:
- Removed problematic patches as indicated by sashiko bot.
- - removed [PATCH 5/8] drm/msm/dpu: use cached PINGPONGs from mode set in cwb setup
- - removed [PATCH 6/8] drm/msm/dpu: workaround res re-assignment issues by pairing enc/crtc
- Fixed issues indicaed by sashiko bot
- - [PATCH 2/8] drm/msm/dpu: save LMs in encoder mode_set for cleanup use later
Re-add dpu_hw_ctl_setup_blendstage calls
- Link to v1: https://patch.msgid.link/20261026-msm-dpu-res-clean-v1-0-f46130a8a717@gmail.com

To: Rob Clark <robin.clark@oss.qualcomm.com>
To: Dmitry Baryshkov <lumag@kernel.org>
To: Abhinav Kumar <abhinav.kumar@linux.dev>
To: Jessica Zhang <jesszhan0024@gmail.com>
To: Sean Paul <sean@poorly.run>
To: Marijn Suijten <marijn.suijten@somainline.org>
To: David Airlie <airlied@gmail.com>
To: Simona Vetter <simona@ffwll.ch>
Cc: linux-arm-msm@vger.kernel.org
Cc: dri-devel@lists.freedesktop.org
Cc: freedreno@lists.freedesktop.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Xi Zhang <xz.ca.cn@gmail.com>

---
Xi Zhang (6):
      drm/msm/dpu: reset unassigned resource slots to NULL on topology update
      drm/msm/dpu: save LMs in encoder mode_set for cleanup use later
      drm/msm/dpu: use common helper cleanup function in cmd mode disable
      drm/msm/dpu: Match setup_dither cleanup to the way it was set up
      drm/msm: force mode_changed on color_mgmt_changed, not just ctm
      drm/msm/dpu: reset DSC_CMN_MAIN_CNF in dsc disable

 drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c        | 92 +++++++++++++---------
 .../gpu/drm/msm/disp/dpu1/dpu_encoder_phys_cmd.c   | 10 +--
 drivers/gpu/drm/msm/disp/dpu1/dpu_hw_dsc_1_2.c     |  1 +
 drivers/gpu/drm/msm/msm_atomic.c                   |  3 +-
 4 files changed, 57 insertions(+), 49 deletions(-)
---
base-commit: d024361c631b3f020a26c07d683e5103404b0fbf
change-id: 20261026-msm-dpu-res-clean-f1704106453f

Best regards,
--  
Xi Zhang <xz.ca.cn@gmail.com>