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[v2,0/8] MDSS reg bus interconnect

Message ID 20230712121145.1994830-1-dmitry.baryshkov@linaro.org
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Series MDSS reg bus interconnect | expand

Message

Dmitry Baryshkov July 12, 2023, 12:11 p.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 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 (6):
  drm/msm/mdss: correct UBWC programming for SM8550
  drm/msm/mdss: switch mdss to use devm_of_icc_get()
  drm/msm/mdss: inline msm_mdss_icc_request_bw()
  drm/msm/mdss: populate missing data
  drm/msm/mdss: Handle the reg bus ICC path
  arm64: dts: qcom: sm8450: provide MDSS cfg interconnect

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

 .../bindings/display/msm/mdss-common.yaml     |   2 +
 arch/arm64/boot/dts/qcom/sm8450.dtsi          |   9 +-
 drivers/gpu/drm/msm/msm_mdss.c                | 138 +++++++++++++-----
 3 files changed, 108 insertions(+), 41 deletions(-)

Comments

Abhinav Kumar July 18, 2023, 12:04 a.m. UTC | #1 
On Wed, 12 Jul 2023 15:11:37 +0300, Dmitry Baryshkov wrote:
> 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.
> 
> [...]

Applied, thanks!

[2/8] drm/msm/mdss: correct UBWC programming for SM8550
      https://gitlab.freedesktop.org/drm/msm/-/commit/a85c238c5ccd

Best regards,