[PATCH v2 2/7] dt-bindings: media: Add Qualcomm SM8450 CAMSS

Vladimir Zapolskiy vz at kernel.org
Mon Oct 26 15:49:52 PDT 2026


Add Qualcomm SM8450 CAMSS device tree binding, it contains
* three CSID and two CSID lite blocks,
* three VFE and two VFE lite blocks,
* three CSI test pattern generators,

Six CSIPHY blocks are described as separate CSIPHY devices connected
to CAMSS input ports.

Signed-off-by: Vladimir Zapolskiy <vz at kernel.org>
---
 .../bindings/media/qcom,sm8450-camss.yaml     | 274 ++++++++++++++++++
 1 file changed, 274 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/media/qcom,sm8450-camss.yaml

diff --git a/Documentation/devicetree/bindings/media/qcom,sm8450-camss.yaml b/Documentation/devicetree/bindings/media/qcom,sm8450-camss.yaml
new file mode 100644
index 000000000000..cf801435191a
--- /dev/null
+++ b/Documentation/devicetree/bindings/media/qcom,sm8450-camss.yaml
@@ -0,0 +1,274 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/media/qcom,sm8450-camss.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm SM8450 Camera Subsystem (CAMSS)
+
+maintainers:
+  - Vladimir Zapolskiy <vz at kernel.org>
+
+description:
+  The CAMSS IP is a CSI decoder and ISP present on Qualcomm platforms.
+
+properties:
+  compatible:
+    const: qcom,sm8450-camss
+
+  reg:
+    maxItems: 14
+
+  reg-names:
+    items:
+      - const: csid_wrapper
+      - const: csid0
+      - const: csid1
+      - const: csid2
+      - const: csid_lite0
+      - const: csid_lite1
+      - const: tpg0
+      - const: tpg1
+      - const: tpg2
+      - const: vfe0
+      - const: vfe1
+      - const: vfe2
+      - const: vfe_lite0
+      - const: vfe_lite1
+
+  clocks:
+    maxItems: 21
+
+  clock-names:
+    items:
+      - const: camnoc_axi
+      - const: core_ahb
+      - const: cpas_ahb
+      - const: cpas_fast_ahb
+      - const: cpas_vfe0
+      - const: cpas_vfe1
+      - const: cpas_vfe2
+      - const: cpas_vfe_lite
+      - const: csid
+      - const: csiphy_rx
+      - const: gcc_hf_axi
+      - const: vfe0
+      - const: vfe0_fast_ahb
+      - const: vfe1
+      - const: vfe1_fast_ahb
+      - const: vfe2
+      - const: vfe2_fast_ahb
+      - const: vfe_lite
+      - const: vfe_lite_ahb
+      - const: vfe_lite_cphy_rx
+      - const: vfe_lite_csid
+
+  interrupts:
+    maxItems: 10
+
+  interrupt-names:
+    items:
+      - const: csid0
+      - const: csid1
+      - const: csid2
+      - const: csid_lite0
+      - const: csid_lite1
+      - const: vfe0
+      - const: vfe1
+      - const: vfe2
+      - const: vfe_lite0
+      - const: vfe_lite1
+
+  iommus:
+    items:
+      - description: S1 HLOS IFE and IFE_LITE non-protected
+
+  interconnects:
+    maxItems: 2
+
+  interconnect-names:
+    items:
+      - const: ahb
+      - const: hf_mnoc
+
+  power-domains:
+    items:
+      - description: IFE0 GDSC - Image Front End, Global Distributed Switch Controller.
+      - description: IFE1 GDSC - Image Front End, Global Distributed Switch Controller.
+      - description: IFE2 GDSC - Image Front End, Global Distributed Switch Controller.
+      - description: Titan GDSC - Titan ISP Block, Global Distributed Switch Controller.
+
+  power-domain-names:
+    items:
+      - const: ife0
+      - const: ife1
+      - const: ife2
+      - const: top
+
+  ports:
+    $ref: /schemas/graph.yaml#/properties/ports
+
+    description:
+      CSI input ports.
+
+    patternProperties:
+      "^port@[0-5]$":
+        $ref: /schemas/graph.yaml#/$defs/port-base
+        unevaluatedProperties: false
+
+        description:
+          Input port for receiving CSI data from a CSIPHY device.
+
+        properties:
+          endpoint:
+            $ref: video-interfaces.yaml#
+            unevaluatedProperties: false
+
+            properties:
+              data-lanes:
+                minItems: 1
+                maxItems: 4
+
+required:
+  - compatible
+  - reg
+  - reg-names
+  - clocks
+  - clock-names
+  - interconnects
+  - interconnect-names
+  - interrupts
+  - interrupt-names
+  - iommus
+  - power-domains
+  - power-domain-names
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/clock/qcom,gcc-sm8450.h>
+    #include <dt-bindings/clock/qcom,sm8450-camcc.h>
+    #include <dt-bindings/interconnect/qcom,sm8450.h>
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+
+    soc {
+        #address-cells = <2>;
+        #size-cells = <2>;
+
+        isp at acb6000 {
+            compatible = "qcom,sm8450-camss";
+            reg = <0 0xacb6000 0 0x1000>,
+                  <0 0xacb7000 0 0x1000>,
+                  <0 0xacb9000 0 0x1000>,
+                  <0 0xacbb000 0 0x1000>,
+                  <0 0xacc6000 0 0x1000>,
+                  <0 0xacca000 0 0x1000>,
+                  <0 0xacf6000 0 0x1000>,
+                  <0 0xacf7000 0 0x1000>,
+                  <0 0xacf8000 0 0x1000>,
+                  <0 0xac62000 0 0x3000>,
+                  <0 0xac71000 0 0x3000>,
+                  <0 0xac80000 0 0x3000>,
+                  <0 0xacc7000 0 0x2000>,
+                  <0 0xaccb000 0 0x2000>;
+            reg-names = "csid_wrapper",
+                        "csid0",
+                        "csid1",
+                        "csid2",
+                        "csid_lite0",
+                        "csid_lite1",
+                        "tpg0",
+                        "tpg1",
+                        "tpg2",
+                        "vfe0",
+                        "vfe1",
+                        "vfe2",
+                        "vfe_lite0",
+                        "vfe_lite1";
+            clocks = <&camcc CAM_CC_CAMNOC_AXI_CLK>,
+                     <&camcc CAM_CC_CORE_AHB_CLK>,
+                     <&camcc CAM_CC_CPAS_AHB_CLK>,
+                     <&camcc CAM_CC_CPAS_FAST_AHB_CLK>,
+                     <&camcc CAM_CC_CPAS_IFE_0_CLK>,
+                     <&camcc CAM_CC_CPAS_IFE_1_CLK>,
+                     <&camcc CAM_CC_CPAS_IFE_2_CLK>,
+                     <&camcc CAM_CC_CPAS_IFE_LITE_CLK>,
+                     <&camcc CAM_CC_CSID_CLK>,
+                     <&camcc CAM_CC_CSID_CSIPHY_RX_CLK>,
+                     <&gcc GCC_CAMERA_HF_AXI_CLK>,
+                     <&camcc CAM_CC_IFE_0_CLK>,
+                     <&camcc CAM_CC_IFE_0_FAST_AHB_CLK>,
+                     <&camcc CAM_CC_IFE_1_CLK>,
+                     <&camcc CAM_CC_IFE_1_FAST_AHB_CLK>,
+                     <&camcc CAM_CC_IFE_2_CLK>,
+                     <&camcc CAM_CC_IFE_2_FAST_AHB_CLK>,
+                     <&camcc CAM_CC_IFE_LITE_CLK>,
+                     <&camcc CAM_CC_IFE_LITE_AHB_CLK>,
+                     <&camcc CAM_CC_IFE_LITE_CPHY_RX_CLK>,
+                     <&camcc CAM_CC_IFE_LITE_CSID_CLK>;
+            clock-names = "camnoc_axi",
+                          "core_ahb",
+                          "cpas_ahb",
+                          "cpas_fast_ahb",
+                          "cpas_vfe0",
+                          "cpas_vfe1",
+                          "cpas_vfe2",
+                          "cpas_vfe_lite",
+                          "csid",
+                          "csiphy_rx",
+                          "gcc_hf_axi",
+                          "vfe0",
+                          "vfe0_fast_ahb",
+                          "vfe1",
+                          "vfe1_fast_ahb",
+                          "vfe2",
+                          "vfe2_fast_ahb",
+                          "vfe_lite",
+                          "vfe_lite_ahb",
+                          "vfe_lite_cphy_rx",
+                          "vfe_lite_csid";
+            interrupts = <GIC_SPI 464 IRQ_TYPE_EDGE_RISING>,
+                         <GIC_SPI 466 IRQ_TYPE_EDGE_RISING>,
+                         <GIC_SPI 640 IRQ_TYPE_EDGE_RISING>,
+                         <GIC_SPI 468 IRQ_TYPE_EDGE_RISING>,
+                         <GIC_SPI 359 IRQ_TYPE_EDGE_RISING>,
+                         <GIC_SPI 465 IRQ_TYPE_EDGE_RISING>,
+                         <GIC_SPI 467 IRQ_TYPE_EDGE_RISING>,
+                         <GIC_SPI 641 IRQ_TYPE_EDGE_RISING>,
+                         <GIC_SPI 469 IRQ_TYPE_EDGE_RISING>,
+                         <GIC_SPI 360 IRQ_TYPE_EDGE_RISING>;
+            interrupt-names = "csid0",
+                              "csid1",
+                              "csid2",
+                              "csid_lite0",
+                              "csid_lite1",
+                              "vfe0",
+                              "vfe1",
+                              "vfe2",
+                              "vfe_lite0",
+                              "vfe_lite1";
+            interconnects = <&gem_noc MASTER_APPSS_PROC 0 &config_noc SLAVE_CAMERA_CFG 0>,
+                            <&mmss_noc MASTER_CAMNOC_HF 0 &mc_virt SLAVE_EBI1 0>;
+            interconnect-names = "ahb", "hf_mnoc";
+            iommus = <&apps_smmu 0x800 0x460>;
+            power-domains = <&camcc IFE_0_GDSC>,
+                            <&camcc IFE_1_GDSC>,
+                            <&camcc IFE_2_GDSC>,
+                            <&camcc TITAN_TOP_GDSC>;
+            power-domain-names = "ife0", "ife1", "ife2", "top";
+
+            ports {
+                #address-cells = <1>;
+                #size-cells = <0>;
+
+                port at 1 {
+                    reg = <1>;
+
+                    camss_csiphy1_ep: endpoint {
+                        remote-endpoint = <&csiphy1_out>;
+                    };
+                };
+            };
+        };
+    };
-- 
2.51.0




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