linux/Documentation/devicetree/bindings/i2c/qcom,i2c-cci.yaml

# SPDX-License-Identifier: GPL-2.0 OR BSD-2-Clause
%YAML 1.2
---
$id: http://devicetree.org/schemas/i2c/qcom,i2c-cci.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: Qualcomm Camera Control Interface (CCI) I2C controller

maintainers:
  - Loic Poulain <loic.poulain@linaro.org>
  - Robert Foss <robert.foss@linaro.org>

properties:
  compatible:
    oneOf:
      - enum:
          - qcom,msm8226-cci
          - qcom,msm8974-cci
          - qcom,msm8996-cci

      - items:
          - enum:
              - qcom,msm8916-cci
          - const: qcom,msm8226-cci # CCI v1

      - items:
          - enum:
              - qcom,sc7280-cci
              - qcom,sc8280xp-cci
              - qcom,sdm845-cci
              - qcom,sm6350-cci
              - qcom,sm8250-cci
              - qcom,sm8450-cci
          - const: qcom,msm8996-cci # CCI v2

  "#address-cells":
    const: 1

  "#size-cells":
    const: 0

  clocks:
    minItems: 3
    maxItems: 6

  clock-names:
    minItems: 3
    maxItems: 6

  interrupts:
    maxItems: 1

  power-domains:
    maxItems: 1

  reg:
    maxItems: 1

patternProperties:
  "^i2c-bus@[01]$":
    $ref: /schemas/i2c/i2c-controller.yaml#
    unevaluatedProperties: false

    properties:
      reg:
        maxItems: 1

      clock-frequency:
        default: 100000

required:
  - compatible
  - clock-names
  - clocks
  - interrupts
  - reg

allOf:
  - if:
      properties:
        compatible:
          contains:
            enum:
              - qcom,msm8996-cci
    then:
      required:
        - power-domains

  - if:
      properties:
        compatible:
          contains:
            enum:
              - qcom,msm8226-cci
              - qcom,msm8916-cci
    then:
      properties:
        i2c-bus@1: false

  - if:
      properties:
        compatible:
          oneOf:
            - contains:
                enum:
                  - qcom,msm8974-cci

            - const: qcom,msm8226-cci
    then:
      properties:
        clocks:
          maxItems: 3
        clock-names:
          items:
            - const: camss_top_ahb
            - const: cci_ahb
            - const: cci

  - if:
      properties:
        compatible:
          oneOf:
            - contains:
                enum:
                  - qcom,msm8916-cci

            - const: qcom,msm8996-cci
    then:
      properties:
        clocks:
          maxItems: 4
        clock-names:
          items:
            - const: camss_top_ahb
            - const: cci_ahb
            - const: cci
            - const: camss_ahb

  - if:
      properties:
        compatible:
          contains:
            enum:
              - qcom,sdm845-cci
              - qcom,sm6350-cci
    then:
      properties:
        clocks:
          minItems: 6
        clock-names:
          items:
            - const: camnoc_axi
            - const: soc_ahb
            - const: slow_ahb_src
            - const: cpas_ahb
            - const: cci
            - const: cci_src

  - if:
      properties:
        compatible:
          contains:
            enum:
              - qcom,sc7280-cci
              - qcom,sm8250-cci
              - qcom,sm8450-cci
    then:
      properties:
        clocks:
          minItems: 5
          maxItems: 5
        clock-names:
          items:
            - const: camnoc_axi
            - const: slow_ahb_src
            - const: cpas_ahb
            - const: cci
            - const: cci_src

  - if:
      properties:
        compatible:
          contains:
            enum:
              - qcom,sc8280xp-cci
    then:
      properties:
        clocks:
          minItems: 4
          maxItems: 4
        clock-names:
          items:
            - const: camnoc_axi
            - const: slow_ahb_src
            - const: cpas_ahb
            - const: cci

additionalProperties: false

examples:
  - |
    #include <dt-bindings/clock/qcom,camcc-sdm845.h>
    #include <dt-bindings/gpio/gpio.h>
    #include <dt-bindings/interrupt-controller/arm-gic.h>

    cci@ac4a000 {
        reg = <0x0ac4a000 0x4000>;
        compatible = "qcom,sdm845-cci", "qcom,msm8996-cci";
        #address-cells = <1>;
        #size-cells = <0>;

        interrupts = <GIC_SPI 460 IRQ_TYPE_EDGE_RISING>;
        power-domains = <&clock_camcc TITAN_TOP_GDSC>;

        clocks = <&clock_camcc CAM_CC_CAMNOC_AXI_CLK>,
                 <&clock_camcc CAM_CC_SOC_AHB_CLK>,
                 <&clock_camcc CAM_CC_SLOW_AHB_CLK_SRC>,
                 <&clock_camcc CAM_CC_CPAS_AHB_CLK>,
                 <&clock_camcc CAM_CC_CCI_CLK>,
                 <&clock_camcc CAM_CC_CCI_CLK_SRC>;
        clock-names = "camnoc_axi",
                      "soc_ahb",
                      "slow_ahb_src",
                      "cpas_ahb",
                      "cci",
                      "cci_src";

        assigned-clocks = <&clock_camcc CAM_CC_CAMNOC_AXI_CLK>,
                          <&clock_camcc CAM_CC_CCI_CLK>;
        assigned-clock-rates = <80000000>,
                               <37500000>;

        pinctrl-names = "default", "sleep";
        pinctrl-0 = <&cci0_default &cci1_default>;
        pinctrl-1 = <&cci0_sleep &cci1_sleep>;

        i2c-bus@0 {
            reg = <0>;
            clock-frequency = <1000000>;
            #address-cells = <1>;
            #size-cells = <0>;

            camera@10 {
                compatible = "ovti,ov8856";
                reg = <0x10>;

                reset-gpios = <&tlmm 9 GPIO_ACTIVE_LOW>;
                pinctrl-names = "default";
                pinctrl-0 = <&cam0_default>;

                clocks = <&clock_camcc CAM_CC_MCLK0_CLK>;
                clock-names = "xvclk";
                clock-frequency = <19200000>;

                dovdd-supply = <&vreg_lvs1a_1p8>;
                avdd-supply = <&cam0_avdd_2v8>;
                dvdd-supply = <&cam0_dvdd_1v2>;

                port {
                    ov8856_ep: endpoint {
                        link-frequencies = /bits/ 64 <360000000 180000000>;
                        data-lanes = <1 2 3 4>;
                        remote-endpoint = <&csiphy0_ep>;
                    };
                };
            };
        };

        cci_i2c1: i2c-bus@1 {
            reg = <1>;
            clock-frequency = <1000000>;
            #address-cells = <1>;
            #size-cells = <0>;

            camera@60 {
                compatible = "ovti,ov7251";
                reg = <0x60>;

                enable-gpios = <&tlmm 21 GPIO_ACTIVE_HIGH>;
                pinctrl-names = "default";
                pinctrl-0 = <&cam3_default>;

                clocks = <&clock_camcc CAM_CC_MCLK3_CLK>;
                clock-names = "xclk";
                clock-frequency = <24000000>;

                vdddo-supply = <&vreg_lvs1a_1p8>;
                vdda-supply = <&cam3_avdd_2v8>;

                port {
                    ov7251_ep: endpoint {
                        data-lanes = <0>;
                        link-frequencies = /bits/ 64 <240000000 319200000>;
                        remote-endpoint = <&csiphy3_ep>;
                    };
                };
            };
        };
    };