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[v3,0/6] MDSS reg bus interconnect

Message ID 20230928113535.1217613-1-dmitry.baryshkov@linaro.org
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Series MDSS reg bus interconnect | expand

Message

Dmitry Baryshkov Sept. 28, 2023, 11:35 a.m. UTC 
Per agreement with Konrad, picked up this patch series.

Apart from the already handled data bus (MAS_MDP_Pn<->DDR), there's
another path that needs to be handled to ensure MDSS functions properly,
namely the "reg bus", a.k.a the CPU-MDSS interconnect.

Gating that path may have a variety of effects. from none to otherwise
inexplicable DSI timeouts.

This series tries to address the lack of that.

Changes since v2:
- Rebased on top of msm/next aka 6.6-rc2, Dropped merged patches.
- Dropped the *1000 factor from reg-bus BW values (Konrad).

Changes since v1:
- Dropped the DPU part, the MDSS vote seems to be enough
- Reworked MDSS voting patch. Replaced static bw value with the
  per-platform confgurable values.
- Added sm8450 DT patch.

Dmitry Baryshkov (3):
  drm/msm/mdss: switch mdss to use devm_of_icc_get()
  drm/msm/mdss: inline msm_mdss_icc_request_bw()
  drm/msm/mdss: Handle the reg bus ICC path

Konrad Dybcio (2):
  dt-bindings: display/msm: Add reg bus and rotator interconnects
  drm/msm/mdss: Rename path references to mdp_path

Linus Torvalds (1):
  Linux 6.6-rc2

 .../bindings/display/msm/mdss-common.yaml     |  2 +
 Makefile                                      |  2 +-
 drivers/gpu/drm/msm/msm_mdss.c                | 96 ++++++++++++-------
 drivers/gpu/drm/msm/msm_mdss.h                |  1 +
 4 files changed, 65 insertions(+), 36 deletions(-)