rk3588调试之imx415摄像头
一、环境
二、imx415简介
三、驱动移植
瑞芯微支持的摄像头，有个support list，
此次从该list中选择了IMX415
3.1 驱动源文件及对应脚本
RK提供的默认sdk里面已经将支持的所有摄像头驱动都添加到了内核，所以不需要移植该驱动了。
需确认下移植驱动对应的一些信息
- 源程序
3588_linux/3588_linux5.10_v1.0.5/kernel/drivers/media/i2c/imx415.c 3588_linux/3588_linux5.10_v1.0.5/kernel/drivers/media/i2c/Makefile 3588_linux/3588_linux5.10_v1.0.5/kernel/drivers/media/i2c/Kconfig 3588_linux/3588_linux5.10_v1.0.5/kernel/arch/arm64/configs/rockchip_linxu_defconfig
- Makefile脚本
obj-$(CONFIG_VIDEO_IMX415) += imx415.o
- Kconfig脚本
config VIDEO_IMX415
tristate "Sony IMX415 sensor support"
depends on I2C && VIDEO_V4L2 && VIDEO_V4L2_SUBDEV_API
depends on MEDIA_CAMERA_SUPPORT
help
This is a Video4Linux2 sensor driver for the Sony
IMX415 camera.
To compile this driver as a module, choose M here: the
module will be called imx415.
- 驱动对应的宏开关
CONFIG_VIDEO_IMX415=y
3.2 dts设备树
1）摄像头链接示意图
IMX415摄像头与SOC连接的主要的引脚有：i2c、rst、pwdn、mclk、MIPI Clk、MIPI DATA
2）电路图
由电路图可知，几个关键引脚关系：
reset信号：gpio4 A0
power0 down信号：gpio1 B0
I2C通道：3
clock：CLK_MIPI_CAMARAOUT_M3
3）设备树节点
// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
/*
* Copyright (c) 2022 Rockchip Electronics Co., Ltd.
*
*/
/ {
compatible = "radxa,rock-5b", "rockchip,rk3588";
camera_pwdn_gpio: camera-pwdn-gpio {
status = "okay";
compatible = "regulator-fixed";
regulator-name = "camera_pwdn_gpio";
regulator-always-on;
regulator-boot-on;
enable-active-high;
gpio = < &gpio1 RK_PB0 GPIO_ACTIVE_HIGH >;
pinctrl-names = "default";
pinctrl-0 = < &cam_pwdn_gpio >;
};
clk_cam_24m: external-camera-clock-24m {
status = "okay";
compatible = "fixed-clock";
clock-frequency = < 24000000 >;
clock-output-names = "clk_cam_24m";
#clock-cells = < 0 >;
};
};
&i2c3 {
status = "okay";
imx415: imx415@1a {
status = "okay";
compatible = "sony,imx415";
reg = < 0x1a >;
clocks = < &cru CLK_MIPI_CAMARAOUT_M3 >;
clock-names = "xvclk";
pinctrl-names = "default";
pinctrl-0 = < &mipim0_camera3_clk >;
power-domains = < &power RK3588_PD_VI >;
pwdn-gpios = < &gpio1 RK_PB0 GPIO_ACTIVE_HIGH >;
reset-gpios = < &gpio4 RK_PA0 GPIO_ACTIVE_LOW >;
rockchip,camera-module-index = < 0 >;
rockchip,camera-module-facing = "back";
rockchip,camera-module-name = "CMK-OT2022-PX1";
rockchip,camera-module-lens-name = "IR0147-50IRC-8M-F20";
port {
imx415_out0: endpoint {
remote-endpoint = < &mipidphy0_in_ucam0 >;
data-lanes = < 1 2 3 4 >;
};
};
};
camera_imx219: camera-imx219@10 {
status = "disabled";
compatible = "sony,imx219";
reg = < 0x10 >;
clocks = < &clk_cam_24m >;
clock-names = "xvclk";
rockchip,camera-module-index = < 0 >;
rockchip,camera-module-facing = "back";
rockchip,camera-module-name = "rpi-camera-v2";
rockchip,camera-module-lens-name = "default";
port {
imx219_out0: endpoint {
remote-endpoint = < &mipidphy0_in_ucam1 >;
data-lanes = < 1 2 >;
};
};
};
};
&csi2_dphy0_hw {
status = "okay";
};
&csi2_dphy0 {
status = "okay";
ports {
#address-cells = < 1 >;
#size-cells = < 0 >;
port@0 {
reg = < 0 >;
#address-cells = < 1 >;
#size-cells = < 0 >;
mipidphy0_in_ucam0: endpoint@1 {
reg = < 1 >;
remote-endpoint = < &imx415_out0 >;
data-lanes = < 1 2 3 4 >;
};
mipidphy0_in_ucam1: endpoint@2 {
reg = < 2 >;
remote-endpoint = < &imx219_out0 >;
data-lanes = < 1 2 >;
};
};
port@1 {
reg = < 1 >;
#address-cells = < 1 >;
#size-cells = < 0 >;
csidphy0_out: endpoint@0 {
reg = < 0 >;
remote-endpoint = < &mipi2_csi2_input >;
};
};
};
};
&mipi2_csi2 {
status = "okay";
ports {
#address-cells = < 1 >;
#size-cells = < 0 >;
port@0 {
reg = < 0 >;
#address-cells = < 1 >;
#size-cells = < 0 >;
mipi2_csi2_input: endpoint@1 {
reg = < 1 >;
remote-endpoint = < &csidphy0_out >;
};
};
port@1 {
reg = < 1 >;
#address-cells = < 1 >;
#size-cells = < 0 >;
mipi2_csi2_output: endpoint@0 {
reg = < 0 >;
remote-endpoint = < &cif_mipi2_in0 >;
};
};
};
};
&rkcif {
status = "okay";
};
&rkcif_mipi_lvds2 {
status = "okay";
port {
cif_mipi2_in0: endpoint {
remote-endpoint = < &mipi2_csi2_output >;
};
};
};
&rkcif_mipi_lvds2_sditf {
status = "okay";
port {
mipi_lvds2_sditf: endpoint {
remote-endpoint = < &isp0_vir0 >;
};
};
};
&rkcif_mmu {
status = "okay";
};
&rkisp0 {
status = "okay";
};
&isp0_mmu {
status = "okay";
};
&rkisp0_vir0 {
status = "okay";
port {
#address-cells = < 1 >;
#size-cells = < 0 >;
isp0_vir0: endpoint@0 {
reg = < 0 >;
remote-endpoint = < &mipi_lvds2_sditf >;
};
};
};
&pinctrl {
camera {
cam_pwdn_gpio: cam-pwdn-gpio {
rockchip,pins = < 1 RK_PB0 RK_FUNC_GPIO &pcfg_pull_up >;
};
};
};