RK3568 开发板-安卓系统之mipi接口的摄像头驱动调试（十五）_专栏

4.12 mipi摄像头驱动调试

4.12.1 查看原理图，获取需要配置的信息

4.12.2 需要配置的信息如下

1、两中mipi摄像头均挂在i2c4下
2、Camera0的复位GPIO是GPIO3_D4, 时钟信号是CLK_CIF_OUT
3、Camera1的复位GPIO是GPIO3_D2, 时钟信号是CIF_WIFI
4、通过查阅GC2053的规格书，及摄像头硬件，确认地址为0x3f和0x37

由于两个都是GC2053, 但配置的时候不能出现两个相同的节点，且由于是同一路I2C，所以也不能出现两个相同的地址。需要修改其中一个摄像头的地址

4.12.3 GC2053的最终配置如下

参考RKDocs/common/camera/HAL3/目录下的相关文档，最终确认配置如下

&i2c4 {
    status = "okay";
    pinctrl-0 = <&i2c4m1_xfer>;

    gc2053: gc2053@37 {
        status = "okay";
        compatible = "galaxycore,gc2053";
        reg = <0x37>;

        power-domains = <&power RK3568_PD_VI>;
        pinctrl-names = "default";
        clock-names = "xvclk";

        pinctrl-0 = <&cif_clk>;
        clocks = <&cru CLK_CIF_OUT>;

        reset-gpios = <&gpio3 RK_PD4 GPIO_ACTIVE_LOW>;

        rockchip,camera-module-index = <0>;
        rockchip,camera-module-facing = "front";
        rockchip,camera-module-name = "default";
        rockchip,camera-module-lens-name = "JX8006";

        port {
            gc2053_out: endpoint {
                remote-endpoint = <&dphy1_in>;
                data-lanes = <1 2>;
            };
        };
    };

    gc2053_2: gc2053_2@3f {
        status = "okay";
        compatible = "galaxycore,gc2053";
        reg = <0x3f>;

        power-domains = <&power RK3568_PD_VI>;
        pinctrl-names = "default";
        clock-names = "xvclk";

        pinctrl-0 = <&refclk_pins>;
        clocks = <&pmucru CLK_WIFI>;

        reset-gpios = <&gpio3 RK_PD2 GPIO_ACTIVE_LOW>;

        rockchip,camera-module-index = <1>;
        rockchip,camera-module-facing = "back";
        rockchip,camera-module-name = "default";
        rockchip,camera-module-lens-name = "JX8006";

        port {
            gc2053_2_out: endpoint {
                remote-endpoint = <&dphy2_in>;
                data-lanes = <1 2>;
            };
        };
    };
};

&csi2_dphy_hw {
    status = "okay";
};

&csi2_dphy0 {
    status = "disabled";
};

&csi2_dphy1 {
        status = "okay";

        ports {
                #address-cells = <1>;
                #size-cells = <0>;

                port@0 {
                        reg = <0>;
                        #address-cells = <1>;
                        #size-cells = <0>;

                        dphy1_in: endpoint@1 {
                                reg = <1>;
                                remote-endpoint = <&gc2053_out>;
                                data-lanes = <1 2>;
                        };
                };

                port@1 {
                        reg = <1>;
                        #address-cells = <1>;
                        #size-cells = <0>;

                        dphy1_out: endpoint@1 {
                                reg = <1>;
                                remote-endpoint = <&isp0_in>;
                        };
                };
        };
};

&rkisp_vir0 {
    status = "okay";

    port {
        #address-cells = <1>;
        #size-cells = <0>;

        isp0_in: endpoint@0 {
            reg = <0>;
            remote-endpoint = <&dphy1_out>;
        };
    };
};

&csi2_dphy2 {
    status = "okay";

    /*
     * dphy2 only used for split mode,
     * can be used  concurrently  with dphy1
     * full mode and split mode are mutually exclusive
     */
    ports {
        #address-cells = <1>;
        #size-cells = <0>;

        port@0 {
            reg = <0>;
            #address-cells = <1>;
            #size-cells = <0>;

            dphy2_in: endpoint@1 {
                reg = <1>;
                remote-endpoint = <&gc2053_2_out>;
                data-lanes = <1 2>;
            };
        };

        port@1 {
            reg = <1>;
            #address-cells = <1>;
            #size-cells = <0>;

            dphy2_out: endpoint@1 {
                reg = <1>;
                remote-endpoint = <&mipi_csi2_input>;
                // remote-endpoint = <&isp1_in>;
            };
        };
    };
};

&mipi_csi2 {
    status = "okay";

    ports {
        #address-cells = <1>;
        #size-cells = <0>;

        port@0 {
            reg = <0>;
            #address-cells = <1>;
            #size-cells = <0>;

            mipi_csi2_input: endpoint@1 {
                reg = <1>;
                remote-endpoint = <&dphy2_out>;
                data-lanes = <1 2>;
            };
        };

        port@1 {
            reg = <1>;
            #address-cells = <1>;
            #size-cells = <0>;

            mipi_csi2_output: endpoint@0 {
                reg = <0>;
                remote-endpoint = <&cif_mipi_in>;
                data-lanes = <1 2>;
            };
        };
    };
};

&rkcif_mipi_lvds {
    status = "okay";

    port {
        cif_mipi_in: endpoint {
            remote-endpoint = <&mipi_csi2_output>;
            data-lanes = <1 2>;
        };
    };
};

&rkcif_mipi_lvds_sditf {
    status = "okay";

    port {
        mipi_lvds_sditf: endpoint {
            remote-endpoint = <&isp1_in>;
            data-lanes = <1 2>;
        };
    };
};

&rkisp_vir1 {
    status = "okay";
    /* gc2053_2->dphy2->csi2->vicap */
    /* vicap sditf->isp_vir1 */
    port {
        #address-cells = <1>;
        #size-cells = <0>;

        isp1_in: endpoint@0 {
            reg = <0>;
            remote-endpoint = <&mipi_lvds_sditf>;
            // remote-endpoint = <&dphy2_out>;
        };
    };
};

&rkisp {
    status = "okay";
};

&rkisp_mmu {
    status = "okay";
};

&rkcif {
    status = "okay";
};

&rkcif_mmu {
    status = "okay";
};

4.12.4 查看gc2053是否注册成功

rk3568_aybering:/ # dmesg | grep "gc2053"
[    1.900008] gc2053 4-0037: driver version: 00.01.01
[    1.900060] gc2053 4-0037: Failed to get pwdn-gpios, maybe no used
[    1.900079] gc2053 4-0037: Failed to get power-gpios
[    1.900120] gc2053 4-0037: 4-0037 supply dovdd not found, using dummy regulator
[    1.900172] gc2053 4-0037: Linked as a consumer to regulator.0
[    1.900199] gc2053 4-0037: 4-0037 supply avdd not found, using dummy regulator
[    1.900255] gc2053 4-0037: 4-0037 supply dvdd not found, using dummy regulator
[    1.900290] gc2053 4-0037: lane_num(2)  pixel_rate(118800000)
[    1.900307] gc2053 4-0037: could not get default pinstate
[    1.900317] gc2053 4-0037: could not get sleep pinstate
[    1.907643] gc2053 4-0037: Detected GC2053 sensor
[    1.907694] rockchip-csi2-dphy csi2-dphy1: dphy1 matches m00_f_gc2053 4-0037:bus type 4
[    1.908472] gc2053 4-003f: driver version: 00.01.01
[    1.908527] gc2053 4-003f: Failed to get pwdn-gpios, maybe no used
[    1.908546] gc2053 4-003f: Failed to get power-gpios
[    1.908582] gc2053 4-003f: 4-003f supply dovdd not found, using dummy regulator
[    1.908631] gc2053 4-003f: Linked as a consumer to regulator.0
[    1.908657] gc2053 4-003f: 4-003f supply avdd not found, using dummy regulator
[    1.908700] gc2053 4-003f: 4-003f supply dvdd not found, using dummy regulator
[    1.908749] gc2053 4-003f: lane_num(2)  pixel_rate(118800000)
[    1.908767] gc2053 4-003f: could not get default pinstate
[    1.908777] gc2053 4-003f: could not get sleep pinstate
[    1.914329] gc2053 4-003f: Detected GC2053 sensor
[    1.914362] rockchip-csi2-dphy csi2-dphy2: dphy2 matches m01_b_gc2053 4-003f:bus type 4
rk3568_aybering:/ #

通过以上信息，可以看到成功注册了两个GC2053摄像头, 地址分别为0x37和0x3f