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From: Konrad Dybcio <konrad.dybcio@linaro.org>
To: Rob Clark <robdclark@gmail.com>,
	Abhinav Kumar <quic_abhinavk@quicinc.com>,
	Dmitry Baryshkov <dmitry.baryshkov@linaro.org>,
	Sean Paul <sean@poorly.run>, David Airlie <airlied@gmail.com>,
	Daniel Vetter <daniel@ffwll.ch>, Rob Herring <robh+dt@kernel.org>,
	Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
	Krishna Manikandan <quic_mkrishn@quicinc.com>
Cc: Marijn Suijten <marijn.suijten@somainline.org>,
	linux-arm-msm@vger.kernel.org, dri-devel@lists.freedesktop.org,
	freedreno@lists.freedesktop.org, devicetree@vger.kernel.org,
	linux-kernel@vger.kernel.org,
	Konrad Dybcio <konrad.dybcio@linaro.org>
Subject: [PATCH 0/5] MDSS reg bus interconnect
Date: Mon, 17 Apr 2023 17:30:14 +0200	[thread overview]
Message-ID: <20230417-topic-dpu_regbus-v1-0-06fbdc1643c0@linaro.org> (raw)

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          |  1 +
 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, 57 insertions(+), 28 deletions(-)
---
base-commit: d3f2cd24819158bb70701c3549e586f9df9cee67
change-id: 20230417-topic-dpu_regbus-abc94a770952

Best regards,
-- 
Konrad Dybcio <konrad.dybcio@linaro.org>


             reply	other threads:[~2023-04-17 15:31 UTC|newest]

Thread overview: 23+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-04-17 15:30 Konrad Dybcio [this message]
2023-04-17 15:30 ` [PATCH 1/5] dt-bindings: display/msm: Add reg bus interconnect Konrad Dybcio
2023-04-18  7:24   ` Krzysztof Kozlowski
2023-04-19 20:05   ` [Freedreno] " Jeykumar Sankaran
2023-04-20  0:26     ` Dmitry Baryshkov
2023-04-17 15:30 ` [PATCH 2/5] drm/msm/dpu1: Rename path references to mdp_path Konrad Dybcio
2023-04-20  0:27   ` Dmitry Baryshkov
2023-04-17 15:30 ` [PATCH 3/5] drm/msm/mdss: " Konrad Dybcio
2023-04-20  0:27   ` Dmitry Baryshkov
2023-04-17 15:30 ` [PATCH 4/5] drm/msm/mdss: Handle the reg bus ICC path Konrad Dybcio
2023-04-17 15:30 ` [PATCH 5/5] drm/msm/dpu1: " Konrad Dybcio
2023-04-17 15:55   ` Konrad Dybcio
2023-04-19 19:06   ` [Freedreno] " Jeykumar Sankaran
2023-04-19 19:48     ` Konrad Dybcio
2023-04-19 20:11       ` Jeykumar Sankaran
2023-04-19 21:26         ` Konrad Dybcio
2023-04-20  0:34           ` Dmitry Baryshkov
2023-04-19 20:07 ` [Freedreno] [PATCH 0/5] MDSS reg bus interconnect Jeykumar Sankaran
2023-05-29  2:42 ` Dmitry Baryshkov
2023-05-29  7:42   ` Konrad Dybcio
2023-05-29  8:47     ` Dmitry Baryshkov
2023-05-29  9:08       ` Konrad Dybcio
2023-05-29 10:01         ` Dmitry Baryshkov

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