media: dt-bindings: media: camss: Add qcom,msm8916-camss binding

Add bindings for qcom,msm8916-camss in order to support the camera
subsystem on MSM8916.
Signed-off-by: Robert Foss <robert.foss@linaro.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>

Documentation/devicetree/bindings/media/qcom,msm8916-camss.yaml

+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+
+%YAML 1.2
+---
+$id: "http://devicetree.org/schemas/media/qcom,msm8916-camss.yaml#"
+$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+
+title: Qualcomm CAMSS ISP
+
+maintainers:
+  - Robert Foss <robert.foss@linaro.org>
+  - Todor Tomov <todor.too@gmail.com>
+
+description: |
+  The CAMSS IP is a CSI decoder and ISP present on Qualcomm platforms
+
+properties:
+  compatible:
+    const: qcom,msm8916-camss
+
+  clocks:
+    minItems: 19
+    maxItems: 19
+
+  clock-names:
+    items:
+      - const: top_ahb
+      - const: ispif_ahb
+      - const: csiphy0_timer
+      - const: csiphy1_timer
+      - const: csi0_ahb
+      - const: csi0
+      - const: csi0_phy
+      - const: csi0_pix
+      - const: csi0_rdi
+      - const: csi1_ahb
+      - const: csi1
+      - const: csi1_phy
+      - const: csi1_pix
+      - const: csi1_rdi
+      - const: ahb
+      - const: vfe0
+      - const: csi_vfe0
+      - const: vfe_ahb
+      - const: vfe_axi
+
+  interrupts:
+    minItems: 6
+    maxItems: 6
+
+  interrupt-names:
+    items:
+      - const: csiphy0
+      - const: csiphy1
+      - const: csid0
+      - const: csid1
+      - const: ispif
+      - const: vfe0
+
+  iommus:
+    maxItems: 1
+
+  power-domains:
+    items:
+      - description: VFE GDSC - Video Front End, Global Distributed Switch Controller.
+
+  ports:
+    $ref: /schemas/graph.yaml#/properties/ports
+
+    description:
+      CSI input ports.
+
+    properties:
+      port@0:
+        $ref: /schemas/graph.yaml#/$defs/port-base
+        unevaluatedProperties: false
+        description:
+          Input port for receiving CSI data.
+
+        properties:
+          endpoint:
+            $ref: video-interfaces.yaml#
+            unevaluatedProperties: false
+
+            properties:
+              clock-lanes:
+                items:
+                  - const: 1
+
+              data-lanes:
+                description:
+                  An array of physical data lanes indexes.
+                  Position of an entry determines the logical
+                  lane number, while the value of an entry
+                  indicates physical lane index. Lane swapping
+                  is supported. Physical lane indexes;
+                  0, 2, 3, 4.
+                minItems: 1
+                maxItems: 4
+
+            required:
+              - clock-lanes
+              - data-lanes
+
+      port@1:
+        $ref: /schemas/graph.yaml#/$defs/port-base
+        unevaluatedProperties: false
+        description:
+          Input port for receiving CSI data.
+
+        properties:
+          endpoint:
+            $ref: video-interfaces.yaml#
+            unevaluatedProperties: false
+
+            properties:
+              clock-lanes:
+                items:
+                  - const: 1
+
+              data-lanes:
+                minItems: 1
+                maxItems: 4
+
+            required:
+              - clock-lanes
+              - data-lanes
+
+  reg:
+    minItems: 9
+    maxItems: 9
+
+  reg-names:
+    items:
+      - const: csiphy0
+      - const: csiphy0_clk_mux
+      - const: csiphy1
+      - const: csiphy1_clk_mux
+      - const: csid0
+      - const: csid1
+      - const: ispif
+      - const: csi_clk_mux
+      - const: vfe0
+
+  vdda-supply:
+    description:
+      Definition of the regulator used as analog power supply.
+
+required:
+  - clock-names
+  - clocks
+  - compatible
+  - interrupt-names
+  - interrupts
+  - iommus
+  - power-domains
+  - reg
+  - reg-names
+  - vdda-supply
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+    #include <dt-bindings/clock/qcom,gcc-msm8916.h>
+
+    camss: camss@1b00000 {
+      compatible = "qcom,msm8916-camss";
+
+      clocks = <&gcc GCC_CAMSS_TOP_AHB_CLK>,
+        <&gcc GCC_CAMSS_ISPIF_AHB_CLK>,
+        <&gcc GCC_CAMSS_CSI0PHYTIMER_CLK>,
+        <&gcc GCC_CAMSS_CSI1PHYTIMER_CLK>,
+        <&gcc GCC_CAMSS_CSI0_AHB_CLK>,
+        <&gcc GCC_CAMSS_CSI0_CLK>,
+        <&gcc GCC_CAMSS_CSI0PHY_CLK>,
+        <&gcc GCC_CAMSS_CSI0PIX_CLK>,
+        <&gcc GCC_CAMSS_CSI0RDI_CLK>,
+        <&gcc GCC_CAMSS_CSI1_AHB_CLK>,
+        <&gcc GCC_CAMSS_CSI1_CLK>,
+        <&gcc GCC_CAMSS_CSI1PHY_CLK>,
+        <&gcc GCC_CAMSS_CSI1PIX_CLK>,
+        <&gcc GCC_CAMSS_CSI1RDI_CLK>,
+        <&gcc GCC_CAMSS_AHB_CLK>,
+        <&gcc GCC_CAMSS_VFE0_CLK>,
+        <&gcc GCC_CAMSS_CSI_VFE0_CLK>,
+        <&gcc GCC_CAMSS_VFE_AHB_CLK>,
+        <&gcc GCC_CAMSS_VFE_AXI_CLK>;
+
+      clock-names = "top_ahb",
+        "ispif_ahb",
+        "csiphy0_timer",
+        "csiphy1_timer",
+        "csi0_ahb",
+        "csi0",
+        "csi0_phy",
+        "csi0_pix",
+        "csi0_rdi",
+        "csi1_ahb",
+        "csi1",
+        "csi1_phy",
+        "csi1_pix",
+        "csi1_rdi",
+        "ahb",
+        "vfe0",
+        "csi_vfe0",
+        "vfe_ahb",
+        "vfe_axi";
+
+      interrupts = <GIC_SPI 78 IRQ_TYPE_EDGE_RISING>,
+        <GIC_SPI 79 IRQ_TYPE_EDGE_RISING>,
+        <GIC_SPI 51 IRQ_TYPE_EDGE_RISING>,
+        <GIC_SPI 52 IRQ_TYPE_EDGE_RISING>,
+        <GIC_SPI 55 IRQ_TYPE_EDGE_RISING>,
+        <GIC_SPI 57 IRQ_TYPE_EDGE_RISING>;
+
+      interrupt-names = "csiphy0",
+        "csiphy1",
+        "csid0",
+        "csid1",
+        "ispif",
+        "vfe0";
+
+      iommus = <&apps_iommu 3>;
+
+      power-domains = <&gcc VFE_GDSC>;
+
+      reg = <0x01b0ac00 0x200>,
+        <0x01b00030 0x4>,
+        <0x01b0b000 0x200>,
+        <0x01b00038 0x4>,
+        <0x01b08000 0x100>,
+        <0x01b08400 0x100>,
+        <0x01b0a000 0x500>,
+        <0x01b00020 0x10>,
+        <0x01b10000 0x1000>;
+
+      reg-names = "csiphy0",
+        "csiphy0_clk_mux",
+        "csiphy1",
+        "csiphy1_clk_mux",
+        "csid0",
+        "csid1",
+        "ispif",
+        "csi_clk_mux",
+        "vfe0";
+
+      vdda-supply = <&reg_2v8>;
+
+      ports {
+        #address-cells = <1>;
+        #size-cells = <0>;
+      };
+
+    };