如何进行RK3399 camera驱动开发

&isp0 {    status = "okay";};&isp1 {    status = "okay";};&isp0_mmu {    status = "okay";};&isp1_mmu {    status = "okay";};

&i2c1 {    status = "okay";}；

cif_isp0: cif_isp@ff910000 {            compatible = "rockchip,rk3399-cif-isp";            rockchip,grf = <&grf>;            reg = <0x0 0xff910000 0x0 0x4000>, <0x0 0xff968000 0x0 0x8000>;            reg-names = "register", "dsihost-register";            clocks =                <&cru ACLK_ISP0_NOC>, <&cru ACLK_ISP0_WRAPPER>,                <&cru HCLK_ISP0_NOC>, <&cru HCLK_ISP0_WRAPPER>,                <&cru SCLK_ISP0>, <&cru SCLK_DPHY_RX0_CFG>,                <&cru SCLK_CIF_OUT>, <&cru SCLK_CIF_OUT>,                <&cru SCLK_MIPIDPHY_REF>;            clock-names =                "aclk_isp0_noc", "aclk_isp0_wrapper",                "hclk_isp0_noc", "hclk_isp0_wrapper",                "clk_isp0", "pclk_dphyrx",                "clk_cif_out", "clk_cif_pll",                "pclk_dphy_ref";            interrupts = <GIC_SPI 43 IRQ_TYPE_LEVEL_HIGH 0>;            interrupt-names = "cif_isp10_irq";            power-domains = <&power RK3399_PD_ISP0>;            rockchip,isp,iommu-enable = <1>;            iommus = <&isp0_mmu>;            status = "disabled";                  };&isp0 {   status = "okay";       }; &isp0_mmu {    status = "okay";           };&cif_isp0 { rockchip,camera-modules-attached = <&camera0>;   status = "okay";};

&pinctrl {/* */     cam_mclk {          cam_default_pins: cam-default-pins {                            rockchip,pins = <2 11 RK_FUNC_3 &pcfg_pull_none>;                                      };            };          };

&i2c1 {         status = "okay";   /* 使能i2c1 */         /*         * 一般写成cameraX:camera-module@ID，其中X为序号，ID为camera的7bit I2C地址                  * camera0表示节点名，绑定isp节点时，将camera0 attach到isp0                  */    camera0: camera-module@10 {       status = "okay";       compatible = "omnivision,ov9750-v4l2-i2c-subdev";       reg = <0x10>;             /* 7bit I2C地址 */       device_type = "v4l2-i2c-subdev";    /* 无需修改 */       clocks = <&cru SCLK_CIF_OUT>;     /* 无需修改，时钟源选择 */       clock-names = "clk_cif_out";      /* 无需修改，时钟源名字 */        pinctrl-names = "default";       /* 无需修改，通过pinctrl配置MCLK引脚 */       pinctrl-0 = <&cam_default_pins>;      /* 无需修改，与上文的pinctrl定义一致 */        rockchip,pd-gpio = <&gpio4 RK_PD1 GPIO_ACTIVE_LOW>;  /* PD管脚分配及有效电平 */       rockchip,rst-gpio = <&gpio4 RK_PD2 GPIO_ACTIVE_LOW>; /* RST管脚分配及有效电平 */        rockchip,camera-module-mclk-name = "clk_cif_out";   /* 无需修改 */       rockchip,camera-module-facing = "back";       //前后置配置       rockchip,camera-module-name = "MDG001";       //Camera 模组名称       rockchip,camera-module-len-name = "NONE";      //Camera 模组镜头       rockchip,camera-module-fov-h = "80";         //模组水平可视角度配置       rockchip,camera-module-fov-v = "65";         //模组垂直可视角度配置       rockchip,camera-module-orientation = <0>;      //模组角度设置       rockchip,camera-module-iq-flip = <0>;        //IQ 上下翻转       rockchip,camera-module-iq-mirror = <0>;       //IQ 左右镜像       //以上 2 个属性控制摄像头的效果参数镜像配置，一般都是设置成 0，但是发现以下现象：拍摄白墙，图片的上半部偏色与下半部偏色不一致，或者左右半部偏不一致，即可以将这2个属性置成1。       rockchip,camera-module-flip = <1>;       rockchip,camera-module-mirror = <1>;       //以上 2 个属性控制摄像头驱动中的镜像配置，如果图像旋转 180 度，可以将这 2 个属性修改成相反的值即可旋转 180。       rockchip,camera-module-defrect0 = <1280 960 0 0 1280 960>; //根据摄像头分辨率进行设置        rockchip,camera-module-flash-support = <0>;        //闪光灯支持       rockchip,camera-module-mipi-dphy-index = <0>;       //mipi口配置，根据物理连接定义       as-master = <0>;  };};

drivers/media/i2c/soc_camera/rockchip|-- ov9750_v4l2-i2c-subdev.c    // OV9750驱动|-- ov_camera_module.c       // OV系列公共函数|-- ov_camera_module.h       //|-- rk_camera_mclk.c        // RK Camera MCLK时钟信号管理|-- rk_camera_mclk.h|-- rk_camera_module.c       // RK 系列公共函数`-- rk_camera_module_version.h   //模块版本信息