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[v2,0/5] MDSS reg bus interconnect

Message ID 20230417-topic-dpu_regbus-v2-0-91a66d04898e@linaro.org
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Series MDSS reg bus interconnect | expand

Message

Konrad Dybcio April 18, 2023, 12:10 p.m. UTC 
v1 -> v2:
- Fix "Mbps" -> "MBps" [5/5]
- Add an interconnects: entry in dt-bindings (and not only -names..) [1/5]

v1: https://lore.kernel.org/r/20230417-topic-dpu_regbus-v1-0-06fbdc1643c0@linaro.org

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.

Example path:

interconnects = <&bimc MASTER_AMPSS_M0 0 &config_noc SLAVE_DISPLAY_CFG 0>;

Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
---
Konrad Dybcio (5):
      dt-bindings: display/msm: Add reg bus interconnect
      drm/msm/dpu1: Rename path references to mdp_path
      drm/msm/mdss: Rename path references to mdp_path
      drm/msm/mdss: Handle the reg bus ICC path
      drm/msm/dpu1: Handle the reg bus ICC path

 .../bindings/display/msm/mdss-common.yaml          |  2 ++
 drivers/gpu/drm/msm/disp/dpu1/dpu_core_perf.c      | 10 +++----
 drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c            | 34 ++++++++++++++++-----
 drivers/gpu/drm/msm/disp/dpu1/dpu_kms.h            |  5 ++--
 drivers/gpu/drm/msm/msm_mdss.c                     | 35 ++++++++++++++--------
 5 files changed, 58 insertions(+), 28 deletions(-)
---
base-commit: 4aa1da8d99724f6c0b762b58a71cee7c5e2e109b
change-id: 20230417-topic-dpu_regbus-abc94a770952

Best regards,