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Mon, 10 Feb 2025 01:32:48 -0800 (PST) Received: from arrakeen.starnux.net ([2a01:e0a:982:cbb0:8261:5fff:fe11:bdda]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-4391da964e2sm141340895e9.4.2025.02.10.01.32.47 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 10 Feb 2025 01:32:47 -0800 (PST) From: Neil Armstrong Date: Mon, 10 Feb 2025 10:32:39 +0100 Subject: [PATCH v3 1/4] dt-bindings: display: qcom,sm8550-mdss: explicitly document mdp0-mem and cpu-cfg interconnect paths MIME-Version: 1.0 Message-Id: <20250210-topic-sm8x50-mdss-interconnect-bindings-fix-v3-1-54c96a9d2b7f@linaro.org> References: <20250210-topic-sm8x50-mdss-interconnect-bindings-fix-v3-0-54c96a9d2b7f@linaro.org> In-Reply-To: <20250210-topic-sm8x50-mdss-interconnect-bindings-fix-v3-0-54c96a9d2b7f@linaro.org> To: Rob Clark , Abhinav Kumar , Dmitry Baryshkov , Sean Paul , Marijn Suijten , David Airlie , Simona Vetter , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Bjorn Andersson , Konrad Dybcio Cc: 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 , Neil Armstrong X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=openpgp-sha256; l=1922; i=neil.armstrong@linaro.org; h=from:subject:message-id; bh=6FKLI8BR9LrbuUjWiYTQpzeLNsesqx1ffA2+NHG9+q0=; b=owEBbQKS/ZANAwAKAXfc29rIyEnRAcsmYgBnqce8QdvaOHqukMQloNHxUMY3QOwnJoaYNNprKn8N iY0JjaiJAjMEAAEKAB0WIQQ9U8YmyFYF/h30LIt33NvayMhJ0QUCZ6nHvAAKCRB33NvayMhJ0awED/ 4xRW3wc2J0soAkiPwhFBNDsJS+LFpMnO+8t6ChgyXGIyn08CvVELsbOi+xAcxvvwRDbVHnmxioHgqe DhNQ5BRTTwzEIHmxPG7/zc4C60SYZX9RvFfbRaVdQqjuto4OWub6YRQXL9pAqFvvh+542UdwssFL9i RRf42lG6RQzryiDSXipivC3g4/xiwVdUx3tRkFR5prIYNb8I/4hIPYNnv+EoXqtCJySmZZunDFePRL 9V782oINlu0BjFzGfNiXPeVoxbHMVwvnMXUYGJKF7EGpHyur4GUvITQu/Nz4jKfPXo5E3gWMm11ENe ZJrOaNTo+k7YLqyzpuxrtWGtVRhqAqtdFVywFRG8Z486z376yI58tPCmnGzwBHmKmMWUJcIcpVnG/e 7hNiHuDxIi2vfPv741Csxh/X7aZknzhet5lcWsQ/YhZmiH4LlQUb/fgN2t06ejihgBVKZ0LR22rzFC HCBv2pJpJgsTzmWNI+6NpHZz0D2DMWX4ZsG9WBRrdPGa6DPjbR2QCZDcozpnwrR0F7uSHLceZmmzf4 uQFkynLNOZnGqI23oHoIChySVi6XcrFNnBIz591bTB0lPPLVMlSM7zLuoiEzKZeFbvqqLVU0JStL1f oT73IMjDltqsvzNqU+NAA42pAHtC9lzaufAcGosCpfBbzDnaf9Ao/0KkRoHg== X-Developer-Key: i=neil.armstrong@linaro.org; a=openpgp; fpr=89EC3D058446217450F22848169AB7B1A4CFF8AE X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" The mdp1-mem is not supported on the SM8550 SoCs, and having maxItems=2 makes the bindings not clear if mdp0-mem/mdp1-mem or mdp0-mem/cpu-cfg is required, so explicitly document the mdp0-mem/cpu-cfg interconnect and add the cpu-cfg path in the example. Suggested-by: Dmitry Baryshkov Signed-off-by: Neil Armstrong Reviewed-by: Krzysztof Kozlowski --- .../devicetree/bindings/display/msm/qcom,sm8550-mdss.yaml | 14 +++++++++----- 1 file changed, 9 insertions(+), 5 deletions(-) diff --git a/Documentation/devicetree/bindings/display/msm/qcom,sm8550-mdss.yaml b/Documentation/devicetree/bindings/display/msm/qcom,sm8550-mdss.yaml index 1ea50a2c7c8e9f420125ad30a80b4ebd05c9367a..59192c59ddb9c126ada43ada1430fa7569651f99 100644 --- a/Documentation/devicetree/bindings/display/msm/qcom,sm8550-mdss.yaml +++ b/Documentation/devicetree/bindings/display/msm/qcom,sm8550-mdss.yaml @@ -30,10 +30,14 @@ properties: maxItems: 1 interconnects: - maxItems: 2 + items: + - description: Interconnect path from mdp0 port to the data bus + - description: Interconnect path from CPU to the reg bus interconnect-names: - maxItems: 2 + items: + - const: mdp0-mem + - const: cpu-cfg patternProperties: "^display-controller@[0-9a-f]+$": @@ -91,9 +95,9 @@ examples: reg = <0x0ae00000 0x1000>; reg-names = "mdss"; - interconnects = <&mmss_noc MASTER_MDP 0 &gem_noc SLAVE_LLCC 0>, - <&mc_virt MASTER_LLCC 0 &mc_virt SLAVE_EBI1 0>; - interconnect-names = "mdp0-mem", "mdp1-mem"; + interconnects = <&mmss_noc MASTER_MDP 0 &mc_virt SLAVE_EBI1 0>, + <&gem_noc MASTER_APPSS_PROC 0 &config_noc SLAVE_DISPLAY_CFG 0>; + interconnect-names = "mdp0-mem", "cpu-cfg"; resets = <&dispcc DISP_CC_MDSS_CORE_BCR>;