[Freedreno] [RFT PATCH v2 0/4] drm/msm/dpu: enable writeback on the other platforms

Dmitry Baryshkov dmitry.baryshkov at linaro.org
Sun Dec 3 00:31:59 UTC 2023


I was not able to test it on my own, this is a call for testing for the
owners of these platforms. The git version of modetest now fully
supports writeback.

Use libdrm >= 2.4.117, run modetest -ac to determine the writeback
connector, cat /sys/kernel/debug/dri/0/state to determine
spare CRTC and plane, then run something like:

modetest -M msm -a -s 36 at 85:1024x768 -o test.d -P 79 at 85:1024x768

where 36 is the Writeback connector id, 85 is CRTC and 79 is the plane.

Then press Enter and check the test.d file for the raw image dump.

Changes since v1:
- Fixed the DPU_CLK_CTRL_WB2 definition

Dmitry Baryshkov (4):
  drm/msm/dpu: enable writeback on SM8150
  drm/msm/dpu: enable writeback on SC8108X
  drm/msm/dpu: enable writeback on SM6125
  drm/msm/dpu: enable writeback on SM6350

 .../drm/msm/disp/dpu1/catalog/dpu_5_0_sm8150.h | 18 ++++++++++++++++++
 .../msm/disp/dpu1/catalog/dpu_5_1_sc8180x.h    | 18 ++++++++++++++++++
 .../drm/msm/disp/dpu1/catalog/dpu_5_4_sm6125.h | 18 ++++++++++++++++++
 .../drm/msm/disp/dpu1/catalog/dpu_6_4_sm6350.h | 18 ++++++++++++++++++
 4 files changed, 72 insertions(+)

-- 
2.39.2



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