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Thu, 13 Feb 2025 08:28:03 -0800 (PST) Received: from arrakeen.starnux.net ([2a01:e0a:982:cbb0:8261:5fff:fe11:bdda]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-38f258b412esm2274382f8f.1.2025.02.13.08.28.02 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 13 Feb 2025 08:28:03 -0800 (PST) From: Neil Armstrong Date: Thu, 13 Feb 2025 17:27:56 +0100 Subject: [PATCH v4 1/4] dt-bindings: display: qcom,sm8550-mdss: explicitly document mdp0-mem and cpu-cfg interconnect paths MIME-Version: 1.0 Message-Id: <20250213-topic-sm8x50-mdss-interconnect-bindings-fix-v4-1-3fa0bc42dd38@linaro.org> References: <20250213-topic-sm8x50-mdss-interconnect-bindings-fix-v4-0-3fa0bc42dd38@linaro.org> In-Reply-To: <20250213-topic-sm8x50-mdss-interconnect-bindings-fix-v4-0-3fa0bc42dd38@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 , Krzysztof Kozlowski X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=openpgp-sha256; l=1989; i=neil.armstrong@linaro.org; h=from:subject:message-id; bh=oNd12i+2YmkCuPYQliiOZGjMa/GCFMaAOwx4UZry5cY=; b=owEBbQKS/ZANAwAKAXfc29rIyEnRAcsmYgBnrh2PxgSsYod7hW5BPfhjvjXJr3Hpc/Y4nGjmbpLq /LWeb26JAjMEAAEKAB0WIQQ9U8YmyFYF/h30LIt33NvayMhJ0QUCZ64djwAKCRB33NvayMhJ0Q0WD/ 4qd13mpilaLgIGAOQgbLY3IKdNqPNm5kMS18FEVqOC1wxxdtMXcWQ2TV916MPWxwLWyZ0V+Ogkc7Vm wj7AE90w09sWjRWMNFJAaevlVjzFtRj7tg8tLEH2WaojWU91xJZZZxhDjnNImc44IiO4fn0OftaVmo 2J3PnvAEDJpeDqfcDgBr3MWEm9wHjT/kGPjr6Ahi6f7dKqnFqMKAVBAmXEUx82IxzCaJDdnAoxZAlI Dx3TVYX5ofK3S3RyvhvJ9Wj8GwF+I8Apc14DU9RQZyBrtw+1Do6t598lCEFkf5UKGoc2WKNknHRoMS VmpNK1g+E9t32NnlryQo/qdHVcNuvEw35dcQe9Xhk2J0gYSiJO1ERiD5D6iCZAoFjwWiqw0JV/QlWk ENCrWpIIx3f+xkO2O48CRatyzt/5LHDLM9sprI3wfkgo1IdVeOmjDUzqdgQ6l8P/q8pF6out0DEETR apeKJV3LdWurx4UNkET5DYpweh4Gqo4tQLcKHrka/6Nw7/TPoVVTfk19sUnvOgA9GS7U+mkdsT+fqo xtRoN+LAo3ESej07wlqYf9wx+qprBUirXwTFlTC3QSOMU3aqiQrC8h5LaoAeYjRswn/7dSfjD+Xclh AEW9bbl3X2yhN+fPBK0yTONibKBvxtZ7jAeopKOWiGtzNr7J8t17swEwq47Q== 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 Reviewed-by: Krzysztof Kozlowski Signed-off-by: Neil Armstrong --- .../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>;