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[178.235.187.166]) by smtp.gmail.com with ESMTPSA id e27-20020a1709062c1b00b009fda627abd9sm7913738ejh.79.2023.11.29.06.44.10 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 29 Nov 2023 06:44:14 -0800 (PST) From: Konrad Dybcio Date: Wed, 29 Nov 2023 15:43:59 +0100 Subject: [PATCH v3 02/12] dt-bindings: display: msm: Add reg bus and rotator interconnects Precedence: bulk X-Mailing-List: linux-pm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20231125-topic-rb1_feat-v3-2-4cbb567743bb@linaro.org> References: <20231125-topic-rb1_feat-v3-0-4cbb567743bb@linaro.org> In-Reply-To: <20231125-topic-rb1_feat-v3-0-4cbb567743bb@linaro.org> To: Rob Clark , Abhinav Kumar , Dmitry Baryshkov , Sean Paul , David Airlie , Daniel Vetter , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Loic Poulain , Bryan O'Donoghue , Andy Gross , Bjorn Andersson , Krzysztof Kozlowski , Georgi Djakov , Will Deacon , Robin Murphy , Joerg Roedel , Krishna Manikandan , Robert Marko , Das Srinagesh , cros-qcom-dts-watchers@chromium.org Cc: Marijn Suijten , Rob Herring , linux-arm-msm@vger.kernel.org, dri-devel@lists.freedesktop.org, freedreno@lists.freedesktop.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org, linux-arm-kernel@lists.infradead.org, iommu@lists.linux.dev, Konrad Dybcio X-Mailer: b4 0.12.2 X-Developer-Signature: v=1; a=ed25519-sha256; t=1701269042; l=10738; i=konrad.dybcio@linaro.org; s=20230215; h=from:subject:message-id; bh=AHiYS8NEeTqp0o7Ra9EntWm/9fcrolhkvnRhcfWO7Hs=; b=UEeCIMBJat9wWZpjgiB1nrF2fjeekxOR7HtK4SCyU+971fCan0yhgVYwmYuwlpRVHpVfY7bLw eNx5mjzd/D+DlZTOACJQZYsOSKjBf5Iz0DWYXTHQrdHAHxiLPK0eqbd X-Developer-Key: i=konrad.dybcio@linaro.org; a=ed25519; pk=iclgkYvtl2w05SSXO5EjjSYlhFKsJ+5OSZBjOkQuEms= Apart from the already handled data bus (MAS_MDP_Pn<->DDR), there are other connection paths: - a path that connects rotator block to the DDR. - a path that needs to be handled to ensure MDSS register access functions properly, namely the "reg bus", a.k.a the CPU-MDSS CFG interconnect. Describe these paths to allow using them in device trees and in the driver. Signed-off-by: Dmitry Baryshkov [Konrad: rework for one vs two MDP paths, update examples] Reviewed-by: Krzysztof Kozlowski Signed-off-by: Konrad Dybcio --- .../devicetree/bindings/display/msm/mdss-common.yaml | 18 ++++++++++++++---- .../bindings/display/msm/qcom,qcm2290-mdss.yaml | 14 ++++++++++---- .../bindings/display/msm/qcom,sc7180-mdss.yaml | 14 ++++++++++---- .../bindings/display/msm/qcom,sc7280-mdss.yaml | 14 ++++++++++---- .../bindings/display/msm/qcom,sm6115-mdss.yaml | 10 ++++++++++ .../bindings/display/msm/qcom,sm6125-mdss.yaml | 8 ++++++-- .../bindings/display/msm/qcom,sm6350-mdss.yaml | 8 ++++++-- .../bindings/display/msm/qcom,sm6375-mdss.yaml | 8 ++++++-- .../bindings/display/msm/qcom,sm8450-mdss.yaml | 13 ++++++++----- 9 files changed, 80 insertions(+), 27 deletions(-) diff --git a/Documentation/devicetree/bindings/display/msm/mdss-common.yaml b/Documentation/devicetree/bindings/display/msm/mdss-common.yaml index f69196e4cc76..c6305a6e0334 100644 --- a/Documentation/devicetree/bindings/display/msm/mdss-common.yaml +++ b/Documentation/devicetree/bindings/display/msm/mdss-common.yaml @@ -61,17 +61,27 @@ properties: ranges: true + # This is not a perfect description, but it's impossible to discern and match + # the entries like we do with interconnect-names interconnects: minItems: 1 items: - description: Interconnect path from mdp0 (or a single mdp) port to the data bus - description: Interconnect path from mdp1 port to the data bus + - description: Interconnect path from CPU to the reg bus interconnect-names: - minItems: 1 - items: - - const: mdp0-mem - - const: mdp1-mem + oneOf: + - minItems: 1 + items: + - const: mdp0-mem + - const: cpu-cfg + + - minItems: 2 + items: + - const: mdp0-mem + - const: mdp1-mem + - const: cpu-cfg resets: items: diff --git a/Documentation/devicetree/bindings/display/msm/qcom,qcm2290-mdss.yaml b/Documentation/devicetree/bindings/display/msm/qcom,qcm2290-mdss.yaml index d71a8e09a798..f0cdb5422688 100644 --- a/Documentation/devicetree/bindings/display/msm/qcom,qcm2290-mdss.yaml +++ b/Documentation/devicetree/bindings/display/msm/qcom,qcm2290-mdss.yaml @@ -36,10 +36,14 @@ properties: maxItems: 2 interconnects: - maxItems: 1 + items: + - description: Interconnect path from mdp0 port to the data bus + - description: Interconnect path from CPU to the reg bus interconnect-names: - maxItems: 1 + items: + - const: mdp0-mem + - const: cpu-cfg patternProperties: "^display-controller@[0-9a-f]+$": @@ -98,8 +102,10 @@ examples: interrupt-controller; #interrupt-cells = <1>; - interconnects = <&mmrt_virt MASTER_MDP0 &bimc SLAVE_EBI1>; - interconnect-names = "mdp0-mem"; + interconnects = <&mmrt_virt MASTER_MDP0 &bimc SLAVE_EBI1>, + <&bimc MASTER_APPSS_PROC &config_noc SLAVE_DISPLAY_CFG>; + interconnect-names = "mdp0-mem", + "cpu-cfg"; iommus = <&apps_smmu 0x420 0x2>, <&apps_smmu 0x421 0x0>; diff --git a/Documentation/devicetree/bindings/display/msm/qcom,sc7180-mdss.yaml b/Documentation/devicetree/bindings/display/msm/qcom,sc7180-mdss.yaml index 3432a2407caa..7a0555b15ddf 100644 --- a/Documentation/devicetree/bindings/display/msm/qcom,sc7180-mdss.yaml +++ b/Documentation/devicetree/bindings/display/msm/qcom,sc7180-mdss.yaml @@ -36,10 +36,14 @@ properties: maxItems: 1 interconnects: - maxItems: 1 + items: + - description: Interconnect path from mdp0 port to the data bus + - description: Interconnect path from CPU to the reg bus interconnect-names: - maxItems: 1 + items: + - const: mdp0-mem + - const: cpu-cfg patternProperties: "^display-controller@[0-9a-f]+$": @@ -106,8 +110,10 @@ examples: interrupt-controller; #interrupt-cells = <1>; - interconnects = <&mmss_noc MASTER_MDP0 &mc_virt SLAVE_EBI1>; - interconnect-names = "mdp0-mem"; + interconnects = <&mmss_noc MASTER_MDP0 &mc_virt SLAVE_EBI1>, + <&gem_noc MASTER_APPSS_PROC &config_noc SLAVE_DISPLAY_CFG>; + interconnect-names = "mdp0-mem", + "cpu-cfg"; iommus = <&apps_smmu 0x800 0x2>; ranges; diff --git a/Documentation/devicetree/bindings/display/msm/qcom,sc7280-mdss.yaml b/Documentation/devicetree/bindings/display/msm/qcom,sc7280-mdss.yaml index bbb727831fca..2947f27e0585 100644 --- a/Documentation/devicetree/bindings/display/msm/qcom,sc7280-mdss.yaml +++ b/Documentation/devicetree/bindings/display/msm/qcom,sc7280-mdss.yaml @@ -36,10 +36,14 @@ properties: maxItems: 1 interconnects: - maxItems: 1 + items: + - description: Interconnect path from mdp0 port to the data bus + - description: Interconnect path from CPU to the reg bus interconnect-names: - maxItems: 1 + items: + - const: mdp0-mem + - const: cpu-cfg patternProperties: "^display-controller@[0-9a-f]+$": @@ -118,8 +122,10 @@ examples: interrupt-controller; #interrupt-cells = <1>; - interconnects = <&mmss_noc MASTER_MDP0 &mc_virt SLAVE_EBI1>; - interconnect-names = "mdp0-mem"; + interconnects = <&mmss_noc MASTER_MDP0 &mc_virt SLAVE_EBI1>, + <&gem_noc MASTER_APPSS_PROC &cnoc2 SLAVE_DISPLAY_CFG>; + interconnect-names = "mdp0-mem", + "cpu-cfg"; iommus = <&apps_smmu 0x900 0x402>; ranges; diff --git a/Documentation/devicetree/bindings/display/msm/qcom,sm6115-mdss.yaml b/Documentation/devicetree/bindings/display/msm/qcom,sm6115-mdss.yaml index dde5c2acead5..309de1953c88 100644 --- a/Documentation/devicetree/bindings/display/msm/qcom,sm6115-mdss.yaml +++ b/Documentation/devicetree/bindings/display/msm/qcom,sm6115-mdss.yaml @@ -29,6 +29,16 @@ properties: iommus: maxItems: 2 + interconnects: + items: + - description: Interconnect path from mdp0 port to the data bus + - description: Interconnect path from CPU to the reg bus + + interconnect-names: + items: + - const: mdp0-mem + - const: cpu-cfg + patternProperties: "^display-controller@[0-9a-f]+$": type: object diff --git a/Documentation/devicetree/bindings/display/msm/qcom,sm6125-mdss.yaml b/Documentation/devicetree/bindings/display/msm/qcom,sm6125-mdss.yaml index 671c2c2aa896..3deb9dc81c9c 100644 --- a/Documentation/devicetree/bindings/display/msm/qcom,sm6125-mdss.yaml +++ b/Documentation/devicetree/bindings/display/msm/qcom,sm6125-mdss.yaml @@ -35,10 +35,14 @@ 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]+$": diff --git a/Documentation/devicetree/bindings/display/msm/qcom,sm6350-mdss.yaml b/Documentation/devicetree/bindings/display/msm/qcom,sm6350-mdss.yaml index e1dcb453762e..c9ba1fae8042 100644 --- a/Documentation/devicetree/bindings/display/msm/qcom,sm6350-mdss.yaml +++ b/Documentation/devicetree/bindings/display/msm/qcom,sm6350-mdss.yaml @@ -35,10 +35,14 @@ properties: maxItems: 1 interconnects: - maxItems: 2 + items: + - description: Interconnect path from mdp0 port to the data bus + - description: Interconnect path from CPU to the reg bus interconnect-names: - maxItems: 2 + items: + - const: mdp0-mem + - const: cpu-cfg patternProperties: "^display-controller@[0-9a-f]+$": diff --git a/Documentation/devicetree/bindings/display/msm/qcom,sm6375-mdss.yaml b/Documentation/devicetree/bindings/display/msm/qcom,sm6375-mdss.yaml index b15c3950f09d..8e8a288d318c 100644 --- a/Documentation/devicetree/bindings/display/msm/qcom,sm6375-mdss.yaml +++ b/Documentation/devicetree/bindings/display/msm/qcom,sm6375-mdss.yaml @@ -35,10 +35,14 @@ 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]+$": diff --git a/Documentation/devicetree/bindings/display/msm/qcom,sm8450-mdss.yaml b/Documentation/devicetree/bindings/display/msm/qcom,sm8450-mdss.yaml index 001b26e65301..747a2e9665f4 100644 --- a/Documentation/devicetree/bindings/display/msm/qcom,sm8450-mdss.yaml +++ b/Documentation/devicetree/bindings/display/msm/qcom,sm8450-mdss.yaml @@ -30,10 +30,10 @@ properties: maxItems: 1 interconnects: - maxItems: 2 + maxItems: 3 interconnect-names: - maxItems: 2 + maxItems: 3 patternProperties: "^display-controller@[0-9a-f]+$": @@ -91,9 +91,12 @@ examples: reg = <0x0ae00000 0x1000>; reg-names = "mdss"; - interconnects = <&mmss_noc MASTER_MDP_DISP 0 &mc_virt SLAVE_EBI1_DISP 0>, - <&mmss_noc MASTER_MDP_DISP 0 &mc_virt SLAVE_EBI1_DISP 0>; - interconnect-names = "mdp0-mem", "mdp1-mem"; + interconnects = <&mmss_noc MASTER_MDP_DISP &mc_virt SLAVE_EBI1_DISP>, + <&mmss_noc MASTER_MDP_DISP &mc_virt SLAVE_EBI1_DISP>, + <&gem_noc MASTER_APPSS_PROC &config_noc SLAVE_DISPLAY_CFG>; + interconnect-names = "mdp0-mem", + "mdp1-mem", + "cpu-cfg"; resets = <&dispcc DISP_CC_MDSS_CORE_BCR>;