20231229在Firefly的AIO-3399J开发板的Android11使用挖掘机的DTS配置单前后摄像头ov13850

20231229在Firefly的AIO-3399J开发板的Android11使用挖掘机的DTS配置单前后摄像头ov13850
2023/12/29 11:10

开发板：Firefly的AIO-3399J【RK3399】
SDK：rk3399-android-11-r20211216.tar.xz【Android11】
Android11.0.tar.bz2.aa【ToyBrick】
Android11.0.tar.bz2.ab
Android11.0.tar.bz2.ac

https://wiki.t-firefly.com/AIO-3399J/prepare_compile_android.html
AIO-3399J产品规格书 立即购买
AIO-3399J 采用 RK3399 六核(A72x2+A53x4) 64 位处理器，主频高达1.8GHz，集成了四核 Mali-T860 GPU，性能优异。

1、简略步骤：
rootroot@rootroot-X99-Turbo:~/3TB$ cat Android11.0.tar.bz2.a* > Android11.0.tar.bz2
rootroot@rootroot-X99-Turbo:~/3TB$ tar jxvf Android11.0.tar.bz2?
rootroot@rootroot-X99-Turbo:~/3TB$ mv Android11.0 64rk3399-android-11
rootroot@rootroot-X99-Turbo:~/3TB$ cd 64rk3399-android-11
rootroot@rootroot-X99-Turbo:~/3TB/64rk3399-android-11$ cd u-boot
rootroot@rootroot-X99-Turbo:~/3TB/64rk3399-android-11/u-boot$ ./make.sh rk3399
rootroot@rootroot-X99-Turbo:~/3TB/64rk3399-android-11/u-boot$ cd ..
rootroot@rootroot-X99-Turbo:~/3TB/64rk3399-android-11$ cd kernel/
rootroot@rootroot-X99-Turbo:~/3TB/64rk3399-android-11/kernel$ make ARCH=arm64 rockchip_defconfig android-11.config -j36
rootroot@rootroot-X99-Turbo:~/3TB/64rk3399-android-11/kernel$ make ARCH=arm64 BOOT_IMG=../rockdev/Image-rk3399_Android11/boot.img rk3399-sapphire-excavator-edp-avb.img -j36
rootroot@rootroot-X99-Turbo:~/3TB/64rk3399-android-11$ source build/envsetup.sh?
rootroot@rootroot-X99-Turbo:~/3TB/64rk3399-android-11$ lunch
? ? ?36. rk3399_Android11-userdebug
Which would you like? [aosp_arm-eng] 36
rootroot@rootroot-X99-Turbo:~/3TB/64rk3399-android-11$?
rootroot@rootroot-X99-Turbo:~/3TB/64rk3399-android-11$ make -j36
rootroot@rootroot-X99-Turbo:~/3TB/64rk3399-android-11$ ./build.sh -u

2、挖掘机的DTS修改：
Z:\3TB\64rk3399-android-11\kernel\arch\arm64\boot\dts\rockchip\rk3399-sapphire-excavator-edp.dtsi
/*
?* Copyright (c) 2018 Fuzhou Rockchip Electronics Co., Ltd
?*
?* This file is dual-licensed: you can use it either under the terms
?* of the GPL or the X11 license, at your option. Note that this dual
?* licensing only applies to this file, and not this project as a
?* whole.
?*
?* ?a) This file is free software; you can redistribute it and/or
?* ? ? modify it under the terms of the GNU General Public License as
?* ? ? published by the Free Software Foundation; either version 2 of the
?* ? ? License, or (at your option) any later version.
?*
?* ? ? This file is distributed in the hope that it will be useful,
?* ? ? but WITHOUT ANY WARRANTY; without even the implied warranty of
?* ? ? MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. ?See the
?* ? ? GNU General Public License for more details.
?*
?* Or, alternatively,
?*
?* ?b) Permission is hereby granted, free of charge, to any person
?* ? ? obtaining a copy of this software and associated documentation
?* ? ? files (the "Software"), to deal in the Software without
?* ? ? restriction, including without limitation the rights to use,
?* ? ? copy, modify, merge, publish, distribute, sublicense, and/or
?* ? ? sell copies of the Software, and to permit persons to whom the
?* ? ? Software is furnished to do so, subject to the following
?* ? ? conditions:
?*
?* ? ? The above copyright notice and this permission notice shall be
?* ? ? included in all copies or substantial portions of the Software.
?*
?* ? ? THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
?* ? ? EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
?* ? ? OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
?* ? ? NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
?* ? ? HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
?* ? ? WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
?* ? ? FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
?* ? ? OTHER DEALINGS IN THE SOFTWARE.
?*/

/dts-v1/;

#include "rk3399-excavator-sapphire.dtsi"
#include "rk3399-android.dtsi"
#include "rk3399-vop-clk-set.dtsi"

/ {
?? ?vcc_lcd: vcc-lcd {
?? ??? ?compatible = "regulator-fixed";
?? ??? ?regulator-name = "vcc_lcd";
?? ??? ?gpio = <&gpio4 30 GPIO_ACTIVE_HIGH>;
?? ??? ?startup-delay-us = <20000>;
?? ??? ?enable-active-high;
?? ??? ?regulator-min-microvolt = <3300000>;
?? ??? ?regulator-max-microvolt = <3300000>;
?? ??? ?regulator-boot-on;
?? ??? ?vin-supply = <&vcc5v0_sys>;
?? ?};

?? ?panel: panel {
?? ??? ?compatible = "simple-panel";
?? ??? ?backlight = <&backlight>;
?? ??? ?power-supply = <&vcc_lcd>;
?? ??? ?enable-gpios = <&gpio1 13 GPIO_ACTIVE_HIGH>;
?? ??? ?prepare-delay-ms = <20>;
?? ??? ?enable-delay-ms = <20>;

?? ??? ?display-timings {
?? ??? ??? ?native-mode = <&timing0>;

?? ??? ??? ?timing0: timing0 {
?? ??? ??? ??? ?clock-frequency = <200000000>;
?? ??? ??? ??? ?hactive = <1536>;
?? ??? ??? ??? ?vactive = <2048>;
?? ??? ??? ??? ?hfront-porch = <12>;
?? ??? ??? ??? ?hsync-len = <16>;
?? ??? ??? ??? ?hback-porch = <48>;
?? ??? ??? ??? ?vfront-porch = <8>;
?? ??? ??? ??? ?vsync-len = <4>;
?? ??? ??? ??? ?vback-porch = <8>;
?? ??? ??? ??? ?hsync-active = <0>;
?? ??? ??? ??? ?vsync-active = <0>;
?? ??? ??? ??? ?de-active = <0>;
?? ??? ??? ??? ?pixelclk-active = <0>;
?? ??? ??? ?};
?? ??? ?};

?? ??? ?ports {
?? ??? ??? ?panel_in: endpoint {
?? ??? ??? ??? ?remote-endpoint = <&edp_out>;
?? ??? ??? ?};
?? ??? ?};
?? ?};

?? ?test-power {
?? ??? ?status = "okay";
?? ?};

?? ?hdmiin_sound: hdmiin-sound {
?? ??? ?compatible = "rockchip,rockchip-rt5651-sound";
?? ??? ?rockchip,cpu = <&i2s0>;
?? ??? ?rockchip,codec = <&rt5651 &rt5651>;
?? ??? ?status = "okay";
?? ?};

?? ?vcc_mipi: vcc_mipi {
?? ??? ??? ?compatible = "regulator-fixed";
?? ??? ??? ?enable-active-high;
?? ??? ??? ?gpio = <&gpio1 22 GPIO_ACTIVE_HIGH>;
?? ??? ??? ?pinctrl-names = "default";
?? ??? ??? ?pinctrl-0 = <&cif_pwr>;
?? ??? ??? ?regulator-name = "vcc_mipi";
?? ?};
};

&backlight {
?? ?status = "okay";
?? ?enable-gpios = <&gpio4 29 GPIO_ACTIVE_HIGH>;
};

&edp {
?? ?status = "okay";
?? ?force-hpd;

?? ?ports {
?? ??? ?port@1 {
?? ??? ??? ?reg = <1>;

?? ??? ??? ?edp_out: endpoint {
?? ??? ??? ??? ?remote-endpoint = <&panel_in>;
?? ??? ??? ?};
?? ??? ?};
?? ?};
};

&edp_in_vopl {
?? ?status = "disabled";
};

&hdmi_in_vopb {
?? ?status = "disabled";
};

&rt5651 {
?? ?status = "okay";
};

&cdn_dp {
?? ?status = "disabled";
?? ?extcon = <&fusb0>;
?? ?phys = <&tcphy0_dp>;
};

&hdmi_dp_sound {
?? ?status = "okay";
};

&hdmiin_sound {
?? ?status = "disabled";
};

&dp_in_vopb {
?? ?status = "disabled";
};

&i2s2 {
?? ?status = "okay";
};

&i2c1 {
?? ?status = "okay";

?? ?gsl3673: gsl3673@40 {
?? ??? ?compatible = "GSL,GSL3673";
?? ??? ?reg = <0x40>;
?? ??? ?screen_max_x = <1536>;
?? ??? ?screen_max_y = <2048>;
?? ??? ?irq_gpio_number = <&gpio1 20 IRQ_TYPE_LEVEL_LOW>;
?? ??? ?rst_gpio_number = <&gpio4 22 GPIO_ACTIVE_HIGH>;
?? ?};

?? ?sgm3784: sgm3784@30 {
?? ??? ?#address-cells = <1>;
?? ??? ?#size-cells = <0>;
?? ??? ?compatible = "sgmicro,gsm3784";
?? ??? ?reg = <0x30>;
?? ??? ?rockchip,camera-module-index = <0>;
?? ??? ?rockchip,camera-module-facing = "back";
?? ??? ?enable-gpio = <&gpio2 RK_PB4 GPIO_ACTIVE_HIGH>;
?? ??? ?strobe-gpio = <&gpio1 RK_PA3 GPIO_ACTIVE_HIGH>;
?? ??? ?status = "okay";
?? ??? ?sgm3784_led0: led@0 {
?? ??? ??? ?reg = <0x0>;
?? ??? ??? ?led-max-microamp = <299200>;
?? ??? ??? ?flash-max-microamp = <1122000>;
?? ??? ??? ?flash-max-timeout-us = <1600000>;
?? ??? ?};

?? ??? ?sgm3784_led1: led@1 {
?? ??? ??? ?reg = <0x1>;
?? ??? ??? ?led-max-microamp = <299200>;
?? ??? ??? ?flash-max-microamp = <1122000>;
?? ??? ??? ?flash-max-timeout-us = <1600000>;
?? ??? ?};
?? ?};

?? ?tc358749x: tc358749x@0f {
?? ??? ?compatible = "toshiba,tc358749x";
?? ??? ?reg = <0x0f>;
?? ??? ?power-gpios = <&gpio2 6 GPIO_ACTIVE_HIGH>;
?? ??? ?power18-gpios = <&gpio2 9 GPIO_ACTIVE_HIGH>;
?? ??? ?power33-gpios = <&gpio2 5 GPIO_ACTIVE_HIGH>;
?? ??? ?csi-ctl-gpios = <&gpio2 10 GPIO_ACTIVE_HIGH>;
?? ??? ?stanby-gpios = <&gpio2 8 GPIO_ACTIVE_HIGH>;
?? ??? ?reset-gpios = <&gpio2 7 GPIO_ACTIVE_HIGH>;
?? ??? ?int-gpios = <&gpio2 12 GPIO_ACTIVE_HIGH>;
?? ??? ?pinctrl-names = "default";
?? ??? ?pinctrl-0 = <&hdmiin_gpios>;
?? ??? ?status = "disabled";
?? ?};

?? ?gc2145: gc2145@3c{
?? ??? ?status = "okay";
?? ??? ?compatible = "galaxycore,gc2145";
?? ??? ?reg = <0x3c>;
?? ??? ?pinctrl-names = "default";
?? ??? ?pinctrl-0 = <&cif_clkout>;

?? ??? ?clocks = <&cru SCLK_CIF_OUT>;
?? ??? ?clock-names = "xvclk";

?? ??? ?/* avdd-supply = <>; */
?? ??? ?/* dvdd-supply = <>; */
?? ??? ?/* dovdd-supply = <>; */
?? ??? ?pwdn-gpios = <&gpio2 28 GPIO_ACTIVE_HIGH>;?? ?//ok
?? ??? ?rockchip,camera-module-index = <1>;
?? ??? ?rockchip,camera-module-facing = "front";
?? ??? ?rockchip,camera-module-name = "CameraKing";
?? ??? ?rockchip,camera-module-lens-name = "Largan";
?? ??? ?port {
?? ??? ??? ?gc2145_out: endpoint {
?? ??? ??? ??? ?remote-endpoint = <&dvp_in_fcam>;
?? ??? ??? ?};
?? ??? ?};
?? ?};

? ? ? ? vm149c: vm149c@0c {
? ? ? ? ? ? ? ? compatible = "silicon touch,vm149c";
? ? ? ? ? ? ? ? status = "okay";
? ? ? ? ? ? ? ? reg = <0x0c>;
? ? ? ? ? ? ? ? rockchip,camera-module-index = <0>;
? ? ? ? ? ? ? ? rockchip,camera-module-facing = "back";
? ? ? ? };

?? ?ov13850b: ov13850b@10 {
?? ??? ?compatible = "ovti,ov13850";
?? ??? ?status = "disabled";
?? ??? ?reg = <0x10>;
?? ??? ?clocks = <&cru SCLK_CIF_OUT>;
?? ??? ?clock-names = "xvclk";
?? ??? ?//avdd-supply = <&vcc_mipi>; /* VCC28_MIPI */
?? ??? ?//dovdd-supply = <&vcc_mipi>; /* VCC18_MIPI */
?? ??? ?//dvdd-supply = <&dvdd_1v2>; /* DVDD_1V2 */
?? ??? ?reset-gpios = <&gpio0 8 GPIO_ACTIVE_HIGH>;
?? ??? ?pwdn-gpios = <&gpio2 2 GPIO_ACTIVE_HIGH>;
?? ??? ?pinctrl-names = "rockchip,camera_default";
?? ??? ?pinctrl-0 = <&cif_clkout>;
?? ??? ?firefly,clkout-enabled-index = <0>;
?? ??? ?rockchip,camera-module-index = <0>;
?? ??? ?rockchip,camera-module-facing = "back";
?? ??? ?rockchip,camera-module-name = "CMK-CT0116";
?? ??? ?rockchip,camera-module-lens-name = "Largan-50013A1";
?? ??? ?lens-focus = <&vm149c>;
?? ??? ?port {
?? ??? ??? ?ucam_out0: endpoint {
?? ??? ??? ??? ?remote-endpoint = <&mipi_in_ucam0>;
?? ??? ??? ??? ?data-lanes = <1 2>;
?? ??? ??? ?};
?? ??? ?};
?? ?};

? ? ? ? vm149c_front: vm149c_front@0c {
? ? ? ? ? ? ? ? compatible = "silicon touch,vm149c";
? ? ? ? ? ? ? ? status = "okay";
? ? ? ? ? ? ? ? reg = <0x0c>;
? ? ? ? ? ? ? ? rockchip,camera-module-index = <1>;
? ? ? ? ? ? ? ? rockchip,camera-module-facing = "front";
? ? ? ? };
?? ?
?? ?ov13850f: ov13850f@10 {
?? ??? ?compatible = "ovti,ov13850";
?? ??? ?status = "disabled";
?? ??? ?reg = <0x10>;
?? ??? ?clocks = <&cru SCLK_CIF_OUT>;
?? ??? ?clock-names = "xvclk";
?? ??? ?//avdd-supply = <&vcc_mipi>; /* VCC28_MIPI */
?? ??? ?//dovdd-supply = <&vcc_mipi>; /* VCC18_MIPI */
?? ??? ?//dvdd-supply = <&dvdd_1v2>; /* DVDD_1V2 */
?? ??? ?reset-gpios = <&gpio0 8 GPIO_ACTIVE_HIGH>;
?? ??? ?pwdn-gpios = <&gpio2 3 GPIO_ACTIVE_HIGH>;
?? ??? ?pinctrl-names = "rockchip,camera_default";
?? ??? ?pinctrl-0 = <&cif_clkout>;
?? ??? ?firefly,second-enabled-index = <1>;
? ? ? ? ?? ?firefly,clkout-enabled-index = <0>;
?? ??? ?rockchip,camera-module-index = <1>;
?? ??? ?rockchip,camera-module-facing = "front";
?? ??? ?rockchip,camera-module-name = "CMK-CT0116";
?? ??? ?rockchip,camera-module-lens-name = "Largan-50013A1";
?? ??? ?lens-focus = <&vm149c_front>;
?? ??? ?port {
?? ??? ??? ?ucam_out1: endpoint {
?? ??? ??? ??? ?remote-endpoint = <&mipi_in_ucam1>;
?? ??? ??? ??? ?data-lanes = <1 2>;
?? ??? ??? ?};
?? ??? ?};
?? ?};
};

&i2c6 {
?? ?cw2015@62 {
?? ??? ?status = "disabled";
?? ??? ?compatible = "cw201x";
?? ??? ?reg = <0x62>;
?? ??? ?bat_config_info = <0x15 0x42 0x60 0x59 0x52 0x58 0x4D 0x48
?? ??? ??? ??? ? ? 0x48 0x44 0x44 0x46 0x49 0x48 0x32 0x24
?? ??? ??? ??? ? ? 0x20 0x17 0x13 0x0F 0x19 0x3E 0x51 0x45
?? ??? ??? ??? ? ? 0x08 0x76 0x0B 0x85 0x0E 0x1C 0x2E 0x3E
?? ??? ??? ??? ? ? 0x4D 0x52 0x52 0x57 0x3D 0x1B 0x6A 0x2D
?? ??? ??? ??? ? ? 0x25 0x43 0x52 0x87 0x8F 0x91 0x94 0x52
?? ??? ??? ??? ? ? 0x82 0x8C 0x92 0x96 0xFF 0x7B 0xBB 0xCB
?? ??? ??? ??? ? ? 0x2F 0x7D 0x72 0xA5 0xB5 0xC1 0x46 0xAE>;
?? ??? ?monitor_sec = <5>;
?? ??? ?virtual_power = <0>;
?? ?};
};

&isp0_mmu {
?? ?status = "okay";
};

&isp1_mmu {
?? ?status = "okay";
};

&mipi_dphy_rx0 {
?? ?status = "okay";

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

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

?? ??? ??? ?mipi_in_ucam0: endpoint@1 {
?? ??? ??? ??? ?reg = <1>;
?? ??? ??? ??? ?remote-endpoint = <&ucam_out0>;
?? ??? ??? ??? ?data-lanes = <1 2>;
?? ??? ??? ?};
?? ??? ?};

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

?? ??? ??? ?dphy_rx0_out: endpoint@0 {
?? ??? ??? ??? ?reg = <0>;
?? ??? ??? ??? ?remote-endpoint = <&isp0_mipi_in>;
?? ??? ??? ?};
?? ??? ?};
?? ?};
};

&mipi_dphy_tx1rx1 {
?? ?status = "okay";

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

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

?? ??? ??? ?mipi_in_ucam1: endpoint@1 {
?? ??? ??? ??? ?reg = <1>;
?? ??? ??? ??? ?remote-endpoint = <&ucam_out1>;
?? ??? ??? ??? ?data-lanes = <1 2>;
?? ??? ??? ?};
?? ??? ?};

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

?? ??? ??? ?dphy_tx1rx1_out: endpoint@0 {
?? ??? ??? ??? ?reg = <0>;
?? ??? ??? ??? ?remote-endpoint = <&isp1_mipi_in>;
?? ??? ??? ?};
?? ??? ?};
?? ?};
};

&vopb {
?? ?status = "okay";
?? ?assigned-clocks = <&cru DCLK_VOP0_DIV>;
?? ?assigned-clock-parents = <&cru PLL_CPLL>;
};

&vopl {
?? ?status = "okay";
?? ?assigned-clocks = <&cru DCLK_VOP1_DIV>;
?? ?assigned-clock-parents = <&cru PLL_VPLL>;
};

&pcie_phy {
?? ?status = "okay";
};

&pcie0 {
?? ?status = "okay";
};

&rkisp1_0 {
?? ?status = "okay";

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

?? ??? ?isp0_mipi_in: endpoint@0 {
?? ??? ??? ?reg = <0>;
?? ??? ??? ?remote-endpoint = <&dphy_rx0_out>;
?? ??? ?};
?? ?};
};

&rkisp1_1 {
?? ?status = "okay";

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

?? ??? ?isp1_mipi_in: endpoint@0 {
?? ??? ??? ?reg = <0>;
?? ??? ??? ?remote-endpoint = <&dphy_tx1rx1_out>;
?? ??? ?};
?? ??? ?dvp_in_fcam: endpoint@1 {
?? ??? ??? ?reg = <1>;
?? ??? ??? ?remote-endpoint = <&gc2145_out>;
?? ??? ?};
?? ?};
};

&route_edp {
?? ?status = "okay";
};

&route_hdmi {
?? ?status = "okay";
?? ?connect = <&vopl_out_hdmi>;
};

&rt5651_sound {
?? ?status = "okay";
};

&pinctrl {
?? ?cam0 {
?? ??? ? cif_pwr: cif-pwr {
?? ??? ??? ?rockchip,pins = <1 22 RK_FUNC_GPIO &pcfg_pull_up>;
?? ??? ? };
?? ?};
?? ?
?? ?lcd-panel {
?? ??? ?lcd_panel_reset: lcd-panel-reset {
?? ??? ??? ?rockchip,pins = <4 RK_PD6 RK_FUNC_GPIO &pcfg_pull_up>;
?? ??? ?};
?? ?};

?? ?hdmiin {
?? ??? ?hdmiin_gpios: hdmiin_gpios {
?? ??? ?rockchip,pins =
?? ??? ??? ??? ?<2 RK_PA5 RK_FUNC_GPIO &pcfg_pull_none>,
?? ??? ??? ??? ?<2 RK_PA6 RK_FUNC_GPIO &pcfg_pull_none>,
?? ??? ??? ??? ?<2 RK_PA7 RK_FUNC_GPIO &pcfg_pull_none>,
?? ??? ??? ??? ?<2 RK_PB0 RK_FUNC_GPIO &pcfg_pull_none>,
?? ??? ??? ??? ?<2 RK_PB1 RK_FUNC_GPIO &pcfg_pull_none>,
?? ??? ??? ??? ?<2 RK_PB4 RK_FUNC_GPIO &pcfg_pull_none>;
?? ??? ?};
?? ?};
};

3、
Z:\3TB\64rk3399-android-11\kernel\arch\arm64\boot\dts\rockchip\rk3399-sapphire-excavator-edp-avb.dts
// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
/*
?* Copyright (c) 2018 Fuzhou Rockchip Electronics Co., Ltd
?*/

/dts-v1/;
#include "rk3399-sapphire-excavator-edp.dtsi"

/ {
?? ?model = "Rockchip RK3399 Excavator Board edp avb (Android)";
?? ?compatible = "rockchip,android", "rockchip,rk3399-excavator-edp-avb", "rockchip,rk3399";
?? ?chosen: chosen {
?? ?bootargs = "earlycon=uart8250,mmio32,0xff1a0000 console=ttyFIQ0 androidboot.baseband=N/A androidboot.veritymode=enforcing androidboot.hardware=rk30board androidboot.console=ttyFIQ0 init=/init initrd=0x62000001,0x00800000 coherent_pool=1m";
?? ?};

?? ?ext_cam_clk: external-camera-clock {
?? ??? ?compatible = "fixed-clock";
?? ??? ?clock-frequency = <27000000>;
?? ??? ?clock-output-names = "CLK_CAMERA_27MHZ";
?? ??? ?#clock-cells = <0>;
?? ?};
};

&i2c1 {
?? ?status = "okay";

?? ?/delete-node/ tc358749x@0f;

?? ?tc35874x: tc35874x@0f {
?? ??? ?status = "disabled";
?? ??? ?reg = <0x0f>;
?? ??? ?compatible = "toshiba,tc358749";
?? ??? ?clocks = <&ext_cam_clk>;
?? ??? ?clock-names = "refclk";
?? ??? ?reset-gpios = <&gpio2 7 GPIO_ACTIVE_LOW>;
?? ??? ?/* interrupt-parent = <&gpio2>; */
?? ??? ?/* interrupts = <12 IRQ_TYPE_LEVEL_HIGH>; */
?? ??? ?pinctrl-names = "default";
?? ??? ?pinctrl-0 = <&tc35874x_gpios>;
?? ??? ?rockchip,camera-module-index = <0>;
?? ??? ?rockchip,camera-module-facing = "back";
?? ??? ?rockchip,camera-module-name = "TC358749XBG";
?? ??? ?rockchip,camera-module-lens-name = "NC";

?? ??? ?port {
?? ??? ??? ?hdmiin_out0: endpoint {
?? ??? ??? ??? ?remote-endpoint = <&hdmi_to_mipi_in>;
?? ??? ??? ??? ?data-lanes = <1 2 3 4>;
?? ??? ??? ??? ?clock-noncontinuous;
?? ??? ??? ??? ?link-frequencies =
?? ??? ??? ??? ??? ?/bits/ 64 <297000000>;
?? ??? ??? ?};
?? ??? ?};
?? ?};
?? ?
? ? ? ? ov13850b: ov13850b@10 {
?? ??? ?status = "okay";
? ? ? ? ? ? ? ? avdd-supply = <&vcc_mipi>;
?? ??? ?power-gpios = <&gpio1 23 GPIO_ACTIVE_HIGH>;
? ? ? ? ? ? ? ? reset-gpios = <&gpio0 8 GPIO_ACTIVE_HIGH>;
? ? ? ? ? ? ? ? pwdn-gpios = <&gpio2 1 GPIO_ACTIVE_HIGH>;
? ? ? ? };

? ? ? ? ov13850f: ov13850f@10 {
?? ??? ?status = "okay";
? ? ? ? ? ? ? ? avdd-supply = <&vcc_mipi>;
?? ??? ?power-gpios = <&gpio1 23 GPIO_ACTIVE_HIGH>;
? ? ? ? ? ? ? ? reset-gpios = <&gpio0 8 GPIO_ACTIVE_HIGH>;
? ? ? ? ? ? ? ? pwdn-gpios = <&gpio2 28 GPIO_ACTIVE_HIGH>;
? ? ? ? };
};

&mipi_dphy_rx0 {
?? ?status = "okay";

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

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

?? ??? ??? ?mipi_in_ucam0: endpoint@1 {
?? ??? ??? ??? ?reg = <1>;
?? ??? ??? ??? ?remote-endpoint = <&ucam_out0>;
?? ??? ??? ??? ?data-lanes = <1 2>;
?? ??? ??? ?};

?? ??? ??? ?hdmi_to_mipi_in: endpoint@2 {
?? ??? ??? ??? ?reg = <2>;
?? ??? ??? ??? ?remote-endpoint = <&hdmiin_out0>;
?? ??? ??? ??? ?data-lanes = <1 2 3 4>;
?? ??? ??? ?};
?? ??? ?};

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

?? ??? ??? ?dphy_rx0_out: endpoint@0 {
?? ??? ??? ??? ?reg = <0>;
?? ??? ??? ??? ?remote-endpoint = <&isp0_mipi_in>;
?? ??? ??? ?};
?? ??? ?};
?? ?};
};

&mipi_dphy_tx1rx1 {
?? ?status = "okay";

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

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

?? ??? ??? ?mipi_in_ucam1: endpoint@1 {
?? ??? ??? ??? ?reg = <1>;
?? ??? ??? ??? ?remote-endpoint = <&ucam_out1>;
?? ??? ??? ??? ?data-lanes = <1 2>;
?? ??? ??? ?};
?? ??? ?};

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

?? ??? ??? ?dphy_tx1rx1_out: endpoint@0 {
?? ??? ??? ??? ?reg = <0>;
?? ??? ??? ??? ?remote-endpoint = <&isp1_mipi_in>;
?? ??? ??? ?};
?? ??? ?};
?? ?};
};

&pinctrl {
?? ?hdmiin {
?? ??? ?tc35874x_gpios: tc35874x_gpios {
?? ??? ??? ?rockchip,pins =
?? ??? ??? ??? ?/* PWREN_3.3 */
?? ??? ??? ??? ?<2 RK_PA5 RK_FUNC_GPIO &pcfg_output_high>,
?? ??? ??? ??? ?/* PWREN_1.2 */
?? ??? ??? ??? ?<2 RK_PA6 RK_FUNC_GPIO &pcfg_output_high>,
?? ??? ??? ??? ?/* HDMIIN_RST */
?? ??? ??? ??? ?<2 RK_PA7 RK_FUNC_GPIO &pcfg_pull_none>,
?? ??? ??? ??? ?/* HDMIIN_STBY */
?? ??? ??? ??? ?<2 RK_PB0 RK_FUNC_GPIO &pcfg_output_high>,
?? ??? ??? ??? ?/* MIPI_RST */
?? ??? ??? ??? ?<2 RK_PB1 RK_FUNC_GPIO &pcfg_output_high>,
?? ??? ??? ??? ?/* CSI_CTL */
?? ??? ??? ??? ?<2 RK_PB2 RK_FUNC_GPIO &pcfg_output_low>,
?? ??? ??? ??? ?/* HDMIIN_INT */
?? ??? ??? ??? ?<2 RK_PB4 RK_FUNC_GPIO &pcfg_pull_none>;
?? ??? ?};
?? ?};
};

&rkisp1_0 {
?? ?status = "okay";
};

&rkisp1_1 {
?? ?status = "okay";
};

这里【必须】配置mipi_dphy_tx1rx1，如果不配置，出不来/dev/video9，也就是你没有前置摄像头了！

4、摄像头ov13850前后兼容的魔改！
Z:\3TB\64rk3399-android-11\kernel\drivers\media\i2c\ov13850.c
// SPDX-License-Identifier: GPL-2.0
/*
?* ov13850 driver
?*
?* Copyright (C) 2017 Fuzhou Rockchip Electronics Co., Ltd.
?*
?* V0.0X01.0X01 add poweron function.
?* V0.0X01.0X02 fix mclk issue when probe multiple camera.
?* V0.0X01.0X03 add enum_frame_interval function.
?* V0.0X01.0X04 add quick stream on/off
?* V0.0X01.0X05 add function g_mbus_config
?*/

#include <linux/clk.h>
#include <linux/device.h>
#include <linux/delay.h>
#include <linux/gpio/consumer.h>
#include <linux/i2c.h>
#include <linux/module.h>
#include <linux/pm_runtime.h>
#include <linux/regulator/consumer.h>
#include <linux/sysfs.h>
#include <linux/slab.h>
#include <linux/version.h>
#include <linux/rk-camera-module.h>
#include <media/media-entity.h>
#include <media/v4l2-async.h>
#include <media/v4l2-ctrls.h>
#include <media/v4l2-subdev.h>
#include <linux/pinctrl/consumer.h>
#include <linux/of_gpio.h>

#define DRIVER_VERSION?? ??? ??? ?KERNEL_VERSION(0, 0x01, 0x05)

#ifndef V4L2_CID_DIGITAL_GAIN
#define V4L2_CID_DIGITAL_GAIN?? ??? ?V4L2_CID_GAIN
#endif

#define OV13850_LINK_FREQ_300MHZ?? ?300000000
/* pixel rate = link frequency * 2 * lanes / BITS_PER_SAMPLE */
#define OV13850_PIXEL_RATE?? ??? ?(OV13850_LINK_FREQ_300MHZ * 2 * 2 / 10)
#define OV13850_XVCLK_FREQ?? ??? ?24000000

#define CHIP_ID?? ??? ??? ??? ?0x00d850
#define OV13850_REG_CHIP_ID?? ??? ?0x300a

#define OV13850_REG_CTRL_MODE?? ??? ?0x0100
#define OV13850_MODE_SW_STANDBY?? ??? ?0x0
#define OV13850_MODE_STREAMING?? ??? ?BIT(0)

#define OV13850_REG_EXPOSURE?? ??? ?0x3500
#define?? ?OV13850_EXPOSURE_MIN?? ??? ?4
#define?? ?OV13850_EXPOSURE_STEP?? ??? ?1
#define OV13850_VTS_MAX?? ??? ??? ?0x7fff

#define OV13850_REG_GAIN_H?? ??? ?0x350a
#define OV13850_REG_GAIN_L?? ??? ?0x350b
#define OV13850_GAIN_H_MASK?? ??? ?0x07
#define OV13850_GAIN_H_SHIFT?? ??? ?8
#define OV13850_GAIN_L_MASK?? ??? ?0xff
#define OV13850_GAIN_MIN?? ??? ?0x10
#define OV13850_GAIN_MAX?? ??? ?0xf8
#define OV13850_GAIN_STEP?? ??? ?1
#define OV13850_GAIN_DEFAULT?? ??? ?0x10

#define OV13850_REG_TEST_PATTERN?? ?0x5e00
#define?? ?OV13850_TEST_PATTERN_ENABLE?? ?0x80
#define?? ?OV13850_TEST_PATTERN_DISABLE?? ?0x0

#define OV13850_REG_VTS?? ??? ??? ?0x380e

#define REG_NULL?? ??? ??? ?0xFFFF

#define OV13850_REG_VALUE_08BIT?? ??? ?1
#define OV13850_REG_VALUE_16BIT?? ??? ?2
#define OV13850_REG_VALUE_24BIT?? ??? ?3

#define OV13850_LANES?? ??? ??? ?2
#define OV13850_BITS_PER_SAMPLE?? ??? ?10

#define OV13850_CHIP_REVISION_REG?? ?0x302A
#define OV13850_R1A?? ??? ??? ?0xb1
#define OV13850_R2A?? ??? ??? ?0xb2

#define OF_CAMERA_PINCTRL_STATE_DEFAULT?? ?"rockchip,camera_default"
#define OF_CAMERA_PINCTRL_STATE_SLEEP?? ?"rockchip,camera_sleep"

#define OV13850_I2C_ADDR0?? ??? ?0x10
#define OV13850_I2C_ADDR1?? ??? ?0x36

#define OV13850_NAME?? ??? ??? ?"ov13850"

static const struct regval *ov13850_global_regs;
static u32 clkout_enabled_index;

static const char * const ov13850_supply_names[] = {
?? ?"avdd",?? ??? ?/* Analog power */
?? ?"dovdd",?? ?/* Digital I/O power */
?? ?"dvdd",?? ??? ?/* Digital core power */
};

#define OV13850_NUM_SUPPLIES ARRAY_SIZE(ov13850_supply_names)

struct regval {
?? ?u16 addr;
?? ?u8 val;
};

struct ov13850_mode {
?? ?u32 width;
?? ?u32 height;
?? ?struct v4l2_fract max_fps;
?? ?u32 hts_def;
?? ?u32 vts_def;
?? ?u32 exp_def;
?? ?const struct regval *reg_list;
};

struct ov13850 {
?? ?struct i2c_client?? ?*client;
?? ?struct clk?? ??? ?*xvclk;
?? ?struct gpio_desc?? ?*power_gpio;
?? ?struct gpio_desc?? ?*reset_gpio;
?? ?struct gpio_desc?? ?*pwdn_gpio;
?? ?struct regulator_bulk_data supplies[OV13850_NUM_SUPPLIES];

?? ?struct pinctrl?? ??? ?*pinctrl;
?? ?struct pinctrl_state?? ?*pins_default;
?? ?struct pinctrl_state?? ?*pins_sleep;

?? ?struct v4l2_subdev?? ?subdev;
?? ?struct media_pad?? ?pad;
?? ?struct v4l2_ctrl_handler ctrl_handler;
?? ?struct v4l2_ctrl?? ?*exposure;
?? ?struct v4l2_ctrl?? ?*anal_gain;
?? ?struct v4l2_ctrl?? ?*digi_gain;
?? ?struct v4l2_ctrl?? ?*hblank;
?? ?struct v4l2_ctrl?? ?*vblank;
?? ?struct v4l2_ctrl?? ?*test_pattern;
?? ?struct mutex?? ??? ?mutex;
?? ?bool?? ??? ??? ?streaming;
?? ?bool?? ??? ??? ?power_on;
?? ?const struct ov13850_mode *cur_mode;
?? ?u32?? ??? ??? ?module_index;
?? ?const char?? ??? ?*module_facing;
?? ?const char?? ??? ?*module_name;
?? ?const char?? ??? ?*len_name;
};

#define to_ov13850(sd) container_of(sd, struct ov13850, subdev)

/*
?* Xclk 24Mhz
?*/
static const struct regval ov13850_global_regs_r1a[] = {
?? ?{0x0103, 0x01},
?? ?{0x0300, 0x00},
?? ?{0x0301, 0x00},
?? ?{0x0302, 0x32},
?? ?{0x0303, 0x01},
?? ?{0x030a, 0x00},
?? ?{0x300f, 0x11},
?? ?{0x3010, 0x01},
?? ?{0x3011, 0x76},
?? ?{0x3012, 0x21},
?? ?{0x3013, 0x12},
?? ?{0x3014, 0x11},
?? ?{0x3015, 0xc0},
?? ?{0x301f, 0x03},
?? ?{0x3106, 0x00},
?? ?{0x3210, 0x47},
?? ?{0x3500, 0x00},
?? ?{0x3501, 0x60},
?? ?{0x3502, 0x00},
?? ?{0x3506, 0x00},
?? ?{0x3507, 0x02},
?? ?{0x3508, 0x00},
?? ?{0x350a, 0x00},
?? ?{0x350b, 0x80},
?? ?{0x350e, 0x00},
?? ?{0x350f, 0x10},
?? ?{0x3600, 0x40},
?? ?{0x3601, 0xfc},
?? ?{0x3602, 0x02},
?? ?{0x3603, 0x48},
?? ?{0x3604, 0xa5},
?? ?{0x3605, 0x9f},
?? ?{0x3607, 0x00},
?? ?{0x360a, 0x40},
?? ?{0x360b, 0x91},
?? ?{0x360c, 0x49},
?? ?{0x360f, 0x8a},
?? ?{0x3611, 0x10},
?? ?{0x3612, 0x27},
?? ?{0x3613, 0x33},
?? ?{0x3615, 0x08},
?? ?{0x3641, 0x02},
?? ?{0x3660, 0x82},
?? ?{0x3668, 0x54},
?? ?{0x3669, 0x40},
?? ?{0x3667, 0xa0},
?? ?{0x3702, 0x40},
?? ?{0x3703, 0x44},
?? ?{0x3704, 0x2c},
?? ?{0x3705, 0x24},
?? ?{0x3706, 0x50},
?? ?{0x3707, 0x44},
?? ?{0x3708, 0x3c},
?? ?{0x3709, 0x1f},
?? ?{0x370a, 0x26},
?? ?{0x370b, 0x3c},
?? ?{0x3720, 0x66},
?? ?{0x3722, 0x84},
?? ?{0x3728, 0x40},
?? ?{0x372a, 0x00},
?? ?{0x372f, 0x90},
?? ?{0x3710, 0x28},
?? ?{0x3716, 0x03},
?? ?{0x3718, 0x10},
?? ?{0x3719, 0x08},
?? ?{0x371c, 0xfc},
?? ?{0x3760, 0x13},
?? ?{0x3761, 0x34},
?? ?{0x3767, 0x24},
?? ?{0x3768, 0x06},
?? ?{0x3769, 0x45},
?? ?{0x376c, 0x23},
?? ?{0x3d84, 0x00},
?? ?{0x3d85, 0x17},
?? ?{0x3d8c, 0x73},
?? ?{0x3d8d, 0xbf},
?? ?{0x3800, 0x00},
?? ?{0x3801, 0x08},
?? ?{0x3802, 0x00},
?? ?{0x3803, 0x04},
?? ?{0x3804, 0x10},
?? ?{0x3805, 0x97},
?? ?{0x3806, 0x0c},
?? ?{0x3807, 0x4b},
?? ?{0x3808, 0x08},
?? ?{0x3809, 0x40},
?? ?{0x380a, 0x06},
?? ?{0x380b, 0x20},
?? ?{0x380c, 0x12},
?? ?{0x380d, 0xc0},
?? ?{0x380e, 0x06},
?? ?{0x380f, 0x80},
?? ?{0x3810, 0x00},
?? ?{0x3811, 0x04},
?? ?{0x3812, 0x00},
?? ?{0x3813, 0x02},
?? ?{0x3814, 0x31},
?? ?{0x3815, 0x31},
?? ?{0x3820, 0x02},
?? ?{0x3821, 0x05},
?? ?{0x3834, 0x00},
?? ?{0x3835, 0x1c},
?? ?{0x3836, 0x08},
?? ?{0x3837, 0x02},
?? ?{0x4000, 0xf1},
?? ?{0x4001, 0x00},
?? ?{0x400b, 0x0c},
?? ?{0x4011, 0x00},
?? ?{0x401a, 0x00},
?? ?{0x401b, 0x00},
?? ?{0x401c, 0x00},
?? ?{0x401d, 0x00},
?? ?{0x4020, 0x00},
?? ?{0x4021, 0xE4},
?? ?{0x4022, 0x07},
?? ?{0x4023, 0x5F},
?? ?{0x4024, 0x08},
?? ?{0x4025, 0x44},
?? ?{0x4026, 0x08},
?? ?{0x4027, 0x47},
?? ?{0x4028, 0x00},
?? ?{0x4029, 0x02},
?? ?{0x402a, 0x04},
?? ?{0x402b, 0x08},
?? ?{0x402c, 0x02},
?? ?{0x402d, 0x02},
?? ?{0x402e, 0x0c},
?? ?{0x402f, 0x08},
?? ?{0x403d, 0x2c},
?? ?{0x403f, 0x7f},
?? ?{0x4500, 0x82},
?? ?{0x4501, 0x38},
?? ?{0x4601, 0x04},
?? ?{0x4602, 0x22},
?? ?{0x4603, 0x01},
?? ?{0x4800, 0x24}, //MIPI CLK control
?? ?{0x4837, 0x1b},
?? ?{0x4d00, 0x04},
?? ?{0x4d01, 0x42},
?? ?{0x4d02, 0xd1},
?? ?{0x4d03, 0x90},
?? ?{0x4d04, 0x66},
?? ?{0x4d05, 0x65},
?? ?{0x5000, 0x0e},
?? ?{0x5001, 0x01},
?? ?{0x5002, 0x07},
?? ?{0x5013, 0x40},
?? ?{0x501c, 0x00},
?? ?{0x501d, 0x10},
?? ?{0x5242, 0x00},
?? ?{0x5243, 0xb8},
?? ?{0x5244, 0x00},
?? ?{0x5245, 0xf9},
?? ?{0x5246, 0x00},
?? ?{0x5247, 0xf6},
?? ?{0x5248, 0x00},
?? ?{0x5249, 0xa6},
?? ?{0x5300, 0xfc},
?? ?{0x5301, 0xdf},
?? ?{0x5302, 0x3f},
?? ?{0x5303, 0x08},
?? ?{0x5304, 0x0c},
?? ?{0x5305, 0x10},
?? ?{0x5306, 0x20},
?? ?{0x5307, 0x40},
?? ?{0x5308, 0x08},
?? ?{0x5309, 0x08},
?? ?{0x530a, 0x02},
?? ?{0x530b, 0x01},
?? ?{0x530c, 0x01},
?? ?{0x530d, 0x0c},
?? ?{0x530e, 0x02},
?? ?{0x530f, 0x01},
?? ?{0x5310, 0x01},
?? ?{0x5400, 0x00},
?? ?{0x5401, 0x61},
?? ?{0x5402, 0x00},
?? ?{0x5403, 0x00},
?? ?{0x5404, 0x00},
?? ?{0x5405, 0x40},
?? ?{0x540c, 0x05},
?? ?{0x5b00, 0x00},
?? ?{0x5b01, 0x00},
?? ?{0x5b02, 0x01},
?? ?{0x5b03, 0xff},
?? ?{0x5b04, 0x02},
?? ?{0x5b05, 0x6c},
?? ?{0x5b09, 0x02},
?? ?{0x5e00, 0x00},
?? ?{0x5e10, 0x1c},
?? ?{0x0102, 0x01}, //Fast standby enable
?? ?{REG_NULL, 0x00},
};

/*
?* Xclk 24Mhz
?*/
static const struct regval ov13850_global_regs_r2a[] = {
?? ?{0x0300, 0x01},
?? ?{0x0301, 0x00},
?? ?{0x0302, 0x28},
?? ?{0x0303, 0x00},
?? ?{0x030a, 0x00},
?? ?{0x300f, 0x11},
?? ?{0x3010, 0x01},
?? ?{0x3011, 0x76},
?? ?{0x3012, 0x21},
?? ?{0x3013, 0x12},
?? ?{0x3014, 0x11},
?? ?{0x301f, 0x03},
?? ?{0x3106, 0x00},
?? ?{0x3210, 0x47},
?? ?{0x3500, 0x00},
?? ?{0x3501, 0x60},
?? ?{0x3502, 0x00},
?? ?{0x3506, 0x00},
?? ?{0x3507, 0x02},
?? ?{0x3508, 0x00},
?? ?{0x350a, 0x00},
?? ?{0x350b, 0x80},
?? ?{0x350e, 0x00},
?? ?{0x350f, 0x10},
?? ?{0x351a, 0x00},
?? ?{0x351b, 0x10},
?? ?{0x351c, 0x00},
?? ?{0x351d, 0x20},
?? ?{0x351e, 0x00},
?? ?{0x351f, 0x40},
?? ?{0x3520, 0x00},
?? ?{0x3521, 0x80},
?? ?{0x3600, 0xc0},
?? ?{0x3601, 0xfc},
?? ?{0x3602, 0x02},
?? ?{0x3603, 0x78},
?? ?{0x3604, 0xb1},
?? ?{0x3605, 0xb5},
?? ?{0x3606, 0x73},
?? ?{0x3607, 0x07},
?? ?{0x3609, 0x40},
?? ?{0x360a, 0x30},
?? ?{0x360b, 0x91},
?? ?{0x360c, 0x09},
?? ?{0x360f, 0x02},
?? ?{0x3611, 0x10},
?? ?{0x3612, 0x27},
?? ?{0x3613, 0x33},
?? ?{0x3615, 0x0c},
?? ?{0x3616, 0x0e},
?? ?{0x3641, 0x02},
?? ?{0x3660, 0x82},
?? ?{0x3668, 0x54},
?? ?{0x3669, 0x00},
?? ?{0x366a, 0x3f},
?? ?{0x3667, 0xa0},
?? ?{0x3702, 0x40},
?? ?{0x3703, 0x44},
?? ?{0x3704, 0x2c},
?? ?{0x3705, 0x01},
?? ?{0x3706, 0x15},
?? ?{0x3707, 0x44},
?? ?{0x3708, 0x3c},
?? ?{0x3709, 0x1f},
?? ?{0x370a, 0x27},
?? ?{0x370b, 0x3c},
?? ?{0x3720, 0x55},
?? ?{0x3722, 0x84},
?? ?{0x3728, 0x40},
?? ?{0x372a, 0x00},
?? ?{0x372b, 0x02},
?? ?{0x372e, 0x22},
?? ?{0x372f, 0x90},
?? ?{0x3730, 0x00},
?? ?{0x3731, 0x00},
?? ?{0x3732, 0x00},
?? ?{0x3733, 0x00},
?? ?{0x3710, 0x28},
?? ?{0x3716, 0x03},
?? ?{0x3718, 0x10},
?? ?{0x3719, 0x0c},
?? ?{0x371a, 0x08},
?? ?{0x371c, 0xfc},
?? ?{0x3748, 0x00},
?? ?{0x3760, 0x13},
?? ?{0x3761, 0x33},
?? ?{0x3762, 0x86},
?? ?{0x3763, 0x16},
?? ?{0x3767, 0x24},
?? ?{0x3768, 0x06},
?? ?{0x3769, 0x45},
?? ?{0x376c, 0x23},
?? ?{0x376f, 0x80},
?? ?{0x3773, 0x06},
?? ?{0x3d84, 0x00},
?? ?{0x3d85, 0x17},
?? ?{0x3d8c, 0x73},
?? ?{0x3d8d, 0xbf},
?? ?{0x3800, 0x00},
?? ?{0x3801, 0x08},
?? ?{0x3802, 0x00},
?? ?{0x3803, 0x04},
?? ?{0x3804, 0x10},
?? ?{0x3805, 0x97},
?? ?{0x3806, 0x0c},
?? ?{0x3807, 0x4b},
?? ?{0x3808, 0x08},
?? ?{0x3809, 0x40},
?? ?{0x380a, 0x06},
?? ?{0x380b, 0x20},
?? ?{0x380c, 0x12},
?? ?{0x380d, 0xc0},
?? ?{0x380e, 0x06},
?? ?{0x380f, 0x80},
?? ?{0x3810, 0x00},
?? ?{0x3811, 0x04},
?? ?{0x3812, 0x00},
?? ?{0x3813, 0x02},
?? ?{0x3814, 0x31},
?? ?{0x3815, 0x31},
?? ?{0x3820, 0x02},
?? ?{0x3821, 0x06},
?? ?{0x3823, 0x00},
?? ?{0x3826, 0x00},
?? ?{0x3827, 0x02},
?? ?{0x3834, 0x00},
?? ?{0x3835, 0x1c},
?? ?{0x3836, 0x08},
?? ?{0x3837, 0x02},
?? ?{0x4000, 0xf1},
?? ?{0x4001, 0x00},
?? ?{0x4006, 0x04},
?? ?{0x4007, 0x04},
?? ?{0x400b, 0x0c},
?? ?{0x4011, 0x00},
?? ?{0x401a, 0x00},
?? ?{0x401b, 0x00},
?? ?{0x401c, 0x00},
?? ?{0x401d, 0x00},
?? ?{0x4020, 0x00},
?? ?{0x4021, 0xe4},
?? ?{0x4022, 0x04},
?? ?{0x4023, 0xd7},
?? ?{0x4024, 0x05},
?? ?{0x4025, 0xbc},
?? ?{0x4026, 0x05},
?? ?{0x4027, 0xbf},
?? ?{0x4028, 0x00},
?? ?{0x4029, 0x02},
?? ?{0x402a, 0x04},
?? ?{0x402b, 0x08},
?? ?{0x402c, 0x02},
?? ?{0x402d, 0x02},
?? ?{0x402e, 0x0c},
?? ?{0x402f, 0x08},
?? ?{0x403d, 0x2c},
?? ?{0x403f, 0x7f},
?? ?{0x4041, 0x07},
?? ?{0x4500, 0x82},
?? ?{0x4501, 0x3c},
?? ?{0x458b, 0x00},
?? ?{0x459c, 0x00},
?? ?{0x459d, 0x00},
?? ?{0x459e, 0x00},
?? ?{0x4601, 0x83},
?? ?{0x4602, 0x22},
?? ?{0x4603, 0x01},
?? ?{0x4800, 0x24}, //MIPI CLK control
?? ?{0x4837, 0x19},
?? ?{0x4d00, 0x04},
?? ?{0x4d01, 0x42},
?? ?{0x4d02, 0xd1},
?? ?{0x4d03, 0x90},
?? ?{0x4d04, 0x66},
?? ?{0x4d05, 0x65},
?? ?{0x4d0b, 0x00},
?? ?{0x5000, 0x0e},
?? ?{0x5001, 0x01},
?? ?{0x5002, 0x07},
?? ?{0x5013, 0x40},
?? ?{0x501c, 0x00},
?? ?{0x501d, 0x10},
?? ?{0x510f, 0xfc},
?? ?{0x5110, 0xf0},
?? ?{0x5111, 0x10},
?? ?{0x536d, 0x02},
?? ?{0x536e, 0x67},
?? ?{0x536f, 0x01},
?? ?{0x5370, 0x4c},
?? ?{0x5400, 0x00},
?? ?{0x5400, 0x00},
?? ?{0x5401, 0x61},
?? ?{0x5402, 0x00},
?? ?{0x5403, 0x00},
?? ?{0x5404, 0x00},
?? ?{0x5405, 0x40},
?? ?{0x540c, 0x05},
?? ?{0x5501, 0x00},
?? ?{0x5b00, 0x00},
?? ?{0x5b01, 0x00},
?? ?{0x5b02, 0x01},
?? ?{0x5b03, 0xff},
?? ?{0x5b04, 0x02},
?? ?{0x5b05, 0x6c},
?? ?{0x5b09, 0x02},
?? ?{0x5e00, 0x00},
?? ?{0x5e10, 0x1c},
?? ?{0x0102, 0x01}, //Fast standby enable
?? ?{REG_NULL, 0x00},
};

/*
?* Xclk 24Mhz
?* max_framerate 30fps
?* mipi_datarate per lane 600Mbps
?*/
static const struct regval ov13850_2112x1568_regs[] = {
?? ?{0x3612, 0x27},
?? ?{0x370a, 0x26},
?? ?{0x372a, 0x00},
?? ?{0x372f, 0x90},
?? ?{0x3801, 0x08},
?? ?{0x3805, 0x97},
?? ?{0x3807, 0x4b},
?? ?{0x3808, 0x08},
?? ?{0x3809, 0x40},
?? ?{0x380a, 0x06},
?? ?{0x380b, 0x20},
?? ?{0x380c, 0x12},
?? ?{0x380d, 0xc0},
?? ?{0x380e, 0x06},
?? ?{0x380f, 0x80},
?? ?{0x3813, 0x02},
?? ?{0x3814, 0x31},
?? ?{0x3815, 0x31},
?? ?{0x3820, 0x02},
?? ?{0x3821, 0x05},
?? ?{0x3836, 0x08},
?? ?{0x3837, 0x02},
?? ?{0x4601, 0x04},
?? ?{0x4603, 0x00},
?? ?{0x4020, 0x00},
?? ?{0x4021, 0xE4},
?? ?{0x4022, 0x07},
?? ?{0x4023, 0x5F},
?? ?{0x4024, 0x08},
?? ?{0x4025, 0x44},
?? ?{0x4026, 0x08},
?? ?{0x4027, 0x47},
?? ?{0x4603, 0x01},
?? ?{0x5401, 0x61},
?? ?{0x5405, 0x40},
?? ?{REG_NULL, 0x00},
};

/*
?* Xclk 24Mhz
?* max_framerate 7fps
?* mipi_datarate per lane 600Mbps
?*/
static const struct regval ov13850_4224x3136_regs[] = {
?? ?{0x3612, 0x2f},
?? ?{0x370a, 0x24},
?? ?{0x372a, 0x04},
?? ?{0x372f, 0xa0},
?? ?{0x3801, 0x0C},
?? ?{0x3805, 0x93},
?? ?{0x3807, 0x4B},
?? ?{0x3808, 0x10},
?? ?{0x3809, 0x80},
?? ?{0x380a, 0x0c},
?? ?{0x380b, 0x40},
?? ?{0x380e, 0x0d},
?? ?{0x380f, 0x00},
?? ?{0x3813, 0x04},
?? ?{0x3814, 0x11},
?? ?{0x3815, 0x11},
?? ?{0x3820, 0x00},
?? ?{0x3821, 0x04},
?? ?{0x3836, 0x04},
?? ?{0x3837, 0x01},
?? ?{0x4601, 0x87},
?? ?{0x4603, 0x01},
?? ?{0x4020, 0x02},
?? ?{0x4021, 0x4C},
?? ?{0x4022, 0x0E},
?? ?{0x4023, 0x37},
?? ?{0x4024, 0x0F},
?? ?{0x4025, 0x1C},
?? ?{0x4026, 0x0F},
?? ?{0x4027, 0x1F},
?? ?{0x4603, 0x00},
?? ?{0x5401, 0x71},
?? ?{0x5405, 0x80},
?? ?{REG_NULL, 0x00},
};

static const struct ov13850_mode supported_modes[] = {
?? ?{
?? ??? ?.width = 2112,
?? ??? ?.height = 1568,
?? ??? ?.max_fps = {
?? ??? ??? ?.numerator = 10000,
?? ??? ??? ?.denominator = 300000,
?? ??? ?},
?? ??? ?.exp_def = 0x0600,
?? ??? ?.hts_def = 0x12c0,
?? ??? ?.vts_def = 0x0680,
?? ??? ?.reg_list = ov13850_2112x1568_regs,
?? ?},{
?? ??? ?.width = 4224,
?? ??? ?.height = 3136,
?? ??? ?.max_fps = {
?? ??? ??? ?.numerator = 20000,
?? ??? ??? ?.denominator = 150000,
?? ??? ?},
?? ??? ?.exp_def = 0x0600,
?? ??? ?.hts_def = 0x12c0,
?? ??? ?.vts_def = 0x0d00,
?? ??? ?.reg_list = ov13850_4224x3136_regs,
?? ?},
};

static const s64 link_freq_menu_items[] = {
?? ?OV13850_LINK_FREQ_300MHZ
};

static const char * const ov13850_test_pattern_menu[] = {
?? ?"Disabled",
?? ?"Vertical Color Bar Type 1",
?? ?"Vertical Color Bar Type 2",
?? ?"Vertical Color Bar Type 3",
?? ?"Vertical Color Bar Type 4"
};

/* Write registers up to 4 at a time */
static int ov13850_write_reg(struct i2c_client *client, u16 reg,
?? ??? ??? ? ? ? u32 len, u32 val)
{
?? ?u32 buf_i, val_i;
?? ?u8 buf[6];
?? ?u8 *val_p;
?? ?__be32 val_be;

?? ?dev_dbg(&client->dev, "write reg(0x%x val:0x%x)!\n", reg, val);

?? ?if (len > 4)
?? ??? ?return -EINVAL;

?? ?buf[0] = reg >> 8;
?? ?buf[1] = reg & 0xff;

?? ?val_be = cpu_to_be32(val);
?? ?val_p = (u8 *)&val_be;
?? ?buf_i = 2;
?? ?val_i = 4 - len;

?? ?while (val_i < 4)
?? ??? ?buf[buf_i++] = val_p[val_i++];

?? ?if (i2c_master_send(client, buf, len + 2) != len + 2)
?? ??? ?return -EIO;

?? ?return 0;
}

static int ov13850_write_array(struct i2c_client *client,
?? ??? ??? ? ? ? ? const struct regval *regs)
{
?? ?u32 i;
?? ?int ret = 0;

?? ?for (i = 0; ret == 0 && regs[i].addr != REG_NULL; i++)
?? ??? ?ret = ov13850_write_reg(client, regs[i].addr,
?? ??? ??? ??? ??? ?OV13850_REG_VALUE_08BIT,
?? ??? ??? ??? ??? ?regs[i].val);

?? ?return ret;
}

/* Read registers up to 4 at a time */
static int ov13850_read_reg(struct i2c_client *client, u16 reg,
?? ??? ??? ? ? ?unsigned int len, u32 *val)
{
?? ?struct i2c_msg msgs[2];
?? ?u8 *data_be_p;
?? ?__be32 data_be = 0;
?? ?__be16 reg_addr_be = cpu_to_be16(reg);
?? ?int ret;

?? ?if (len > 4 || !len)
?? ??? ?return -EINVAL;

?? ?data_be_p = (u8 *)&data_be;
?? ?/* Write register address */
?? ?msgs[0].addr = client->addr;
?? ?msgs[0].flags = 0;
?? ?msgs[0].len = 2;
?? ?msgs[0].buf = (u8 *)&reg_addr_be;

?? ?/* Read data from register */
?? ?msgs[1].addr = client->addr;
?? ?msgs[1].flags = I2C_M_RD;
?? ?msgs[1].len = len;
?? ?msgs[1].buf = &data_be_p[4 - len];

?? ?ret = i2c_transfer(client->adapter, msgs, ARRAY_SIZE(msgs));
?? ?if (ret != ARRAY_SIZE(msgs))
?? ??? ?return -EIO;

?? ?*val = be32_to_cpu(data_be);

?? ?return 0;
}

static int ov13850_get_reso_dist(const struct ov13850_mode *mode,
?? ??? ??? ??? ? struct v4l2_mbus_framefmt *framefmt)
{
?? ?return abs(mode->width - framefmt->width) +
?? ? ? ? ? abs(mode->height - framefmt->height);
}

static const struct ov13850_mode *
ov13850_find_best_fit(struct v4l2_subdev_format *fmt)
{
?? ?struct v4l2_mbus_framefmt *framefmt = &fmt->format;
?? ?int dist;
?? ?int cur_best_fit = 0;
?? ?int cur_best_fit_dist = -1;
?? ?unsigned int i;

?? ?for (i = 0; i < ARRAY_SIZE(supported_modes); i++) {
?? ??? ?dist = ov13850_get_reso_dist(&supported_modes[i], framefmt);
?? ??? ?if (cur_best_fit_dist == -1 || dist < cur_best_fit_dist) {
?? ??? ??? ?cur_best_fit_dist = dist;
?? ??? ??? ?cur_best_fit = i;
?? ??? ?}
?? ?}

?? ?return &supported_modes[cur_best_fit];
}

static int ov13850_set_fmt(struct v4l2_subdev *sd,
?? ??? ??? ? ? struct v4l2_subdev_pad_config *cfg,
?? ??? ??? ? ?struct v4l2_subdev_format *fmt)
{
?? ?struct ov13850 *ov13850 = to_ov13850(sd);
?? ?const struct ov13850_mode *mode;
?? ?s64 h_blank, vblank_def;

?? ?mutex_lock(&ov13850->mutex);

?? ?mode = ov13850_find_best_fit(fmt);
?? ?fmt->format.code = MEDIA_BUS_FMT_SBGGR10_1X10;
?? ?fmt->format.width = mode->width;
?? ?fmt->format.height = mode->height;
?? ?fmt->format.field = V4L2_FIELD_NONE;
?? ?if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) {
#ifdef CONFIG_VIDEO_V4L2_SUBDEV_API
?? ??? ?*v4l2_subdev_get_try_format(sd, cfg, fmt->pad) = fmt->format;
#else
?? ??? ?mutex_unlock(&ov13850->mutex);
?? ??? ?return -ENOTTY;
#endif
?? ?} else {
?? ??? ?ov13850->cur_mode = mode;
?? ??? ?h_blank = mode->hts_def - mode->width;
?? ??? ?__v4l2_ctrl_modify_range(ov13850->hblank, h_blank,
?? ??? ??? ??? ??? ? h_blank, 1, h_blank);
?? ??? ?vblank_def = mode->vts_def - mode->height;
?? ??? ?__v4l2_ctrl_modify_range(ov13850->vblank, vblank_def,
?? ??? ??? ??? ??? ? OV13850_VTS_MAX - mode->height,
?? ??? ??? ??? ??? ? 1, vblank_def);
?? ?}

?? ?mutex_unlock(&ov13850->mutex);

?? ?return 0;
}

static int ov13850_get_fmt(struct v4l2_subdev *sd,
?? ??? ??? ? ? struct v4l2_subdev_pad_config *cfg,
?? ??? ??? ? ? struct v4l2_subdev_format *fmt)
{
?? ?struct ov13850 *ov13850 = to_ov13850(sd);
?? ?const struct ov13850_mode *mode = ov13850->cur_mode;

?? ?mutex_lock(&ov13850->mutex);
?? ?if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) {
#ifdef CONFIG_VIDEO_V4L2_SUBDEV_API
?? ??? ?fmt->format = *v4l2_subdev_get_try_format(sd, cfg, fmt->pad);
#else
?? ??? ?mutex_unlock(&ov13850->mutex);
?? ??? ?return -ENOTTY;
#endif
?? ?} else {
?? ??? ?fmt->format.width = mode->width;
?? ??? ?fmt->format.height = mode->height;
?? ??? ?fmt->format.code = MEDIA_BUS_FMT_SBGGR10_1X10;
?? ??? ?fmt->format.field = V4L2_FIELD_NONE;
?? ?}
?? ?mutex_unlock(&ov13850->mutex);

?? ?return 0;
}

static int ov13850_enum_mbus_code(struct v4l2_subdev *sd,
?? ??? ??? ??? ? ?struct v4l2_subdev_pad_config *cfg,
?? ??? ??? ??? ? ?struct v4l2_subdev_mbus_code_enum *code)
{
?? ?if (code->index != 0)
?? ??? ?return -EINVAL;
?? ?code->code = MEDIA_BUS_FMT_SBGGR10_1X10;

?? ?return 0;
}

static int ov13850_enum_frame_sizes(struct v4l2_subdev *sd,
?? ??? ??? ??? ? ? ?struct v4l2_subdev_pad_config *cfg,
?? ??? ??? ??? ? ? struct v4l2_subdev_frame_size_enum *fse)
{
?? ?if (fse->index >= ARRAY_SIZE(supported_modes))
?? ??? ?return -EINVAL;

?? ?if (fse->code != MEDIA_BUS_FMT_SBGGR10_1X10)
?? ??? ?return -EINVAL;

?? ?fse->min_width ?= supported_modes[fse->index].width;
?? ?fse->max_width ?= supported_modes[fse->index].width;
?? ?fse->max_height = supported_modes[fse->index].height;
?? ?fse->min_height = supported_modes[fse->index].height;

?? ?return 0;
}

static int ov13850_enable_test_pattern(struct ov13850 *ov13850, u32 pattern)
{
?? ?u32 val;

?? ?if (pattern)
?? ??? ?val = (pattern - 1) | OV13850_TEST_PATTERN_ENABLE;
?? ?else
?? ??? ?val = OV13850_TEST_PATTERN_DISABLE;

?? ?return ov13850_write_reg(ov13850->client,
?? ??? ??? ??? ? OV13850_REG_TEST_PATTERN,
?? ??? ??? ??? ? OV13850_REG_VALUE_08BIT,
?? ??? ??? ??? ? val);
}

static int ov13850_g_frame_interval(struct v4l2_subdev *sd,
?? ??? ??? ??? ? ? ?struct v4l2_subdev_frame_interval *fi)
{
?? ?struct ov13850 *ov13850 = to_ov13850(sd);
?? ?const struct ov13850_mode *mode = ov13850->cur_mode;

?? ?mutex_lock(&ov13850->mutex);
?? ?fi->interval = mode->max_fps;
?? ?mutex_unlock(&ov13850->mutex);

?? ?return 0;
}

static void ov13850_get_module_inf(struct ov13850 *ov13850,
?? ??? ??? ??? ? ? struct rkmodule_inf *inf)
{
?? ?memset(inf, 0, sizeof(*inf));
?? ?strlcpy(inf->base.sensor, OV13850_NAME, sizeof(inf->base.sensor));
?? ?strlcpy(inf->base.module, ov13850->module_name,
?? ??? ?sizeof(inf->base.module));
?? ?strlcpy(inf->base.lens, ov13850->len_name, sizeof(inf->base.lens));
}

static long ov13850_ioctl(struct v4l2_subdev *sd, unsigned int cmd, void *arg)
{
?? ?struct ov13850 *ov13850 = to_ov13850(sd);
?? ?long ret = 0;
?? ?u32 stream = 0;

?? ?switch (cmd) {
?? ?case RKMODULE_GET_MODULE_INFO:
?? ??? ?ov13850_get_module_inf(ov13850, (struct rkmodule_inf *)arg);
?? ??? ?break;
?? ?case RKMODULE_SET_QUICK_STREAM:

?? ??? ?stream = *((u32 *)arg);

?? ??? ?if (stream)
?? ??? ??? ?ret = ov13850_write_reg(ov13850->client,
?? ??? ??? ??? ? OV13850_REG_CTRL_MODE,
?? ??? ??? ??? ? OV13850_REG_VALUE_08BIT,
?? ??? ??? ??? ? OV13850_MODE_STREAMING);
?? ??? ?else
?? ??? ??? ?ret = ov13850_write_reg(ov13850->client,
?? ??? ??? ??? ? OV13850_REG_CTRL_MODE,
?? ??? ??? ??? ? OV13850_REG_VALUE_08BIT,
?? ??? ??? ??? ? OV13850_MODE_SW_STANDBY);
?? ??? ?break;
?? ?default:
?? ??? ?ret = -ENOIOCTLCMD;
?? ??? ?break;
?? ?}

?? ?return ret;
}

#ifdef CONFIG_COMPAT
static long ov13850_compat_ioctl32(struct v4l2_subdev *sd,
?? ??? ??? ??? ? ? unsigned int cmd, unsigned long arg)
{
?? ?void __user *up = compat_ptr(arg);
?? ?struct rkmodule_inf *inf;
?? ?struct rkmodule_awb_cfg *cfg;
?? ?long ret;
?? ?u32 stream = 0;

?? ?switch (cmd) {
?? ?case RKMODULE_GET_MODULE_INFO:
?? ??? ?inf = kzalloc(sizeof(*inf), GFP_KERNEL);
?? ??? ?if (!inf) {
?? ??? ??? ?ret = -ENOMEM;
?? ??? ??? ?return ret;
?? ??? ?}

?? ??? ?ret = ov13850_ioctl(sd, cmd, inf);
?? ??? ?if (!ret)
?? ??? ??? ?ret = copy_to_user(up, inf, sizeof(*inf));
?? ??? ?kfree(inf);
?? ??? ?break;
?? ?case RKMODULE_AWB_CFG:
?? ??? ?cfg = kzalloc(sizeof(*cfg), GFP_KERNEL);
?? ??? ?if (!cfg) {
?? ??? ??? ?ret = -ENOMEM;
?? ??? ??? ?return ret;
?? ??? ?}

?? ??? ?ret = copy_from_user(cfg, up, sizeof(*cfg));
?? ??? ?if (!ret)
?? ??? ??? ?ret = ov13850_ioctl(sd, cmd, cfg);
?? ??? ?kfree(cfg);
?? ??? ?break;
?? ?case RKMODULE_SET_QUICK_STREAM:
?? ??? ?ret = copy_from_user(&stream, up, sizeof(u32));
?? ??? ?if (!ret)
?? ??? ??? ?ret = ov13850_ioctl(sd, cmd, &stream);
?? ??? ?break;
?? ?default:
?? ??? ?ret = -ENOIOCTLCMD;
?? ??? ?break;
?? ?}

?? ?return ret;
}
#endif

static int __ov13850_start_stream(struct ov13850 *ov13850)
{
?? ?int ret;

?? ?ret = ov13850_write_array(ov13850->client, ov13850->cur_mode->reg_list);
?? ?if (ret)
?? ??? ?return ret;

?? ?/* In case these controls are set before streaming */
?? ?mutex_unlock(&ov13850->mutex);
?? ?ret = v4l2_ctrl_handler_setup(&ov13850->ctrl_handler);
?? ?mutex_lock(&ov13850->mutex);
?? ?if (ret)
?? ??? ?return ret;

?? ?return ov13850_write_reg(ov13850->client,
?? ??? ??? ??? ? OV13850_REG_CTRL_MODE,
?? ??? ??? ??? ? OV13850_REG_VALUE_08BIT,
?? ??? ??? ??? ? OV13850_MODE_STREAMING);
}

static int __ov13850_stop_stream(struct ov13850 *ov13850)
{
?? ?return ov13850_write_reg(ov13850->client,
?? ??? ??? ??? ? OV13850_REG_CTRL_MODE,
?? ??? ??? ??? ? OV13850_REG_VALUE_08BIT,
?? ??? ??? ??? ? OV13850_MODE_SW_STANDBY);
}

static int ov13850_s_stream(struct v4l2_subdev *sd, int on)
{
?? ?struct ov13850 *ov13850 = to_ov13850(sd);
?? ?struct i2c_client *client = ov13850->client;
?? ?int ret = 0;

?? ?mutex_lock(&ov13850->mutex);
?? ?on = !!on;
?? ?if (on == ov13850->streaming)
?? ??? ?goto unlock_and_return;

?? ?if (on) {
?? ??? ?ret = pm_runtime_get_sync(&client->dev);
?? ??? ?if (ret < 0) {
?? ??? ??? ?pm_runtime_put_noidle(&client->dev);
?? ??? ??? ?goto unlock_and_return;
?? ??? ?}

?? ??? ?ret = __ov13850_start_stream(ov13850);
?? ??? ?if (ret) {
?? ??? ??? ?v4l2_err(sd, "start stream failed while write regs\n");
?? ??? ??? ?pm_runtime_put(&client->dev);
?? ??? ??? ?goto unlock_and_return;
?? ??? ?}
?? ?} else {
?? ??? ?__ov13850_stop_stream(ov13850);
?? ??? ?pm_runtime_put(&client->dev);
?? ?}

?? ?ov13850->streaming = on;

unlock_and_return:
?? ?mutex_unlock(&ov13850->mutex);

?? ?return ret;
}

static int __ov13850_power_on(struct ov13850 *ov13850);
static void __ov13850_power_off(struct ov13850 *ov13850);
static int ov13850_s_power(struct v4l2_subdev *sd, int on)
{
?? ?struct ov13850 *ov13850 = to_ov13850(sd);
?? ?struct i2c_client *client = ov13850->client;
?? ?int ret = 0;

?? ?mutex_lock(&ov13850->mutex);

?? ?/* If the power state is not modified - no work to do. */
?? ?if (ov13850->power_on == !!on)
?? ??? ?goto unlock_and_return;

?? ?if (on) {
?? ??? ?ret = pm_runtime_get_sync(&client->dev);
?? ??? ?if (ret < 0) {
?? ??? ??? ?pm_runtime_put_noidle(&client->dev);
?? ??? ??? ?goto unlock_and_return;
?? ??? ?}

?? ??? ?__ov13850_power_on(ov13850);
?? ??? ?ret = ov13850_write_array(ov13850->client, ov13850_global_regs);
?? ??? ?if (ret) {
?? ??? ??? ?v4l2_err(sd, "could not set init registers\n");
?? ??? ??? ?pm_runtime_put_noidle(&client->dev);
?? ??? ??? ?goto unlock_and_return;
?? ??? ?}

?? ??? ?ov13850->power_on = true;
?? ??? ?/* export gpio */
?? ??? ?if (!IS_ERR(ov13850->reset_gpio))
?? ??? ??? ? ? gpiod_export(ov13850->reset_gpio, false);
?? ??? ?if (!IS_ERR(ov13850->pwdn_gpio))
?? ??? ??? ? ? gpiod_export(ov13850->pwdn_gpio, false);
?? ?} else {
?? ??? ?pm_runtime_put(&client->dev);
?? ??? ?__ov13850_power_off(ov13850);
?? ??? ?ov13850->power_on = false;
?? ??? ?/* unexport gpio */
?? ??? ?if (!IS_ERR(ov13850->reset_gpio))
?? ??? ??? ? ? gpiod_unexport(ov13850->reset_gpio);
?? ??? ?if (!IS_ERR(ov13850->pwdn_gpio))
?? ??? ??? ? ? gpiod_unexport(ov13850->pwdn_gpio);
?? ?}

unlock_and_return:
?? ?mutex_unlock(&ov13850->mutex);

?? ?return ret;
}

/* Calculate the delay in us by clock rate and clock cycles */
static inline u32 ov13850_cal_delay(u32 cycles)
{
?? ?return DIV_ROUND_UP(cycles, OV13850_XVCLK_FREQ / 1000 / 1000);
}

static int __ov13850_power_on(struct ov13850 *ov13850)
{
?? ?int ret;
?? ?u32 delay_us;
?? ?struct device *dev = &ov13850->client->dev;

?? ?if (!IS_ERR_OR_NULL(ov13850->pins_default)) {
?? ??? ?ret = pinctrl_select_state(ov13850->pinctrl,
?? ??? ??? ??? ??? ? ? ov13850->pins_default);
?? ??? ?if (ret < 0)
?? ??? ??? ?dev_err(dev, "could not set pins\n");
?? ?}

?? ?if (clkout_enabled_index){
?? ??? ?ret = clk_set_rate(ov13850->xvclk, OV13850_XVCLK_FREQ);
?? ??? ?if (ret < 0)
?? ??? ??? ?dev_warn(dev, "Failed to set xvclk rate (24MHz)\n");
?? ??? ?if (clk_get_rate(ov13850->xvclk) != OV13850_XVCLK_FREQ)
?? ??? ??? ?dev_warn(dev, "xvclk mismatched, modes are based on 24MHz\n");
?? ??? ?ret = clk_prepare_enable(ov13850->xvclk);
?? ??? ?if (ret < 0) {
?? ??? ??? ?dev_err(dev, "Failed to enable xvclk\n");
?? ??? ??? ?return ret;
?? ??? ?}
?? ?}

?? ?if (!IS_ERR(ov13850->reset_gpio))
?? ??? ?gpiod_set_value_cansleep(ov13850->reset_gpio, 0);

?? ?ret = regulator_bulk_enable(OV13850_NUM_SUPPLIES, ov13850->supplies);
?? ?if (ret < 0) {
?? ??? ?dev_err(dev, "Failed to enable regulators\n");
?? ??? ?goto disable_clk;
?? ?}

?? ?if (!IS_ERR(ov13850->power_gpio))
?? ??? ?gpiod_set_value_cansleep(ov13850->power_gpio, 1);

?? ?if (!IS_ERR(ov13850->reset_gpio))
?? ??? ?gpiod_set_value_cansleep(ov13850->reset_gpio, 1);

?? ?usleep_range(500, 1000);

?? ?if (!IS_ERR(ov13850->pwdn_gpio))
?? ??? ?gpiod_set_value_cansleep(ov13850->pwdn_gpio, 1);

?? ?/* 8192 cycles prior to first SCCB transaction */
?? ?delay_us = ov13850_cal_delay(8192);
?? ?usleep_range(delay_us, delay_us * 2);

?? ?return 0;

disable_clk:
?? ?if (clkout_enabled_index)
?? ??? ?clk_disable_unprepare(ov13850->xvclk);

?? ?return ret;
}

static void __ov13850_power_off(struct ov13850 *ov13850)
{
?? ?int ret;
?? ?struct device *dev = &ov13850->client->dev;

?? ?if (!IS_ERR(ov13850->pwdn_gpio))
?? ??? ?gpiod_set_value_cansleep(ov13850->pwdn_gpio, 0);
?? ?if (clkout_enabled_index)
?? ??? ?clk_disable_unprepare(ov13850->xvclk);
? ? ? ? //if (!IS_ERR(ov13850->power_gpio))
? ? ? ? // ? ? ? ?gpiod_set_value_cansleep(ov13850->power_gpio, 0);
?? ?//if (!IS_ERR(ov13850->reset_gpio))
?? ?//?? ?gpiod_set_value_cansleep(ov13850->reset_gpio, 0);

?? ?if (!IS_ERR_OR_NULL(ov13850->pins_sleep)) {
?? ??? ?ret = pinctrl_select_state(ov13850->pinctrl,
?? ??? ??? ??? ??? ? ? ov13850->pins_sleep);
?? ??? ?if (ret < 0)
?? ??? ??? ?dev_dbg(dev, "could not set pins\n");
?? ?}

?? ?regulator_bulk_disable(OV13850_NUM_SUPPLIES, ov13850->supplies);
}

static int ov13850_runtime_resume(struct device *dev)
{
?? ?struct i2c_client *client = to_i2c_client(dev);
?? ?struct v4l2_subdev *sd = i2c_get_clientdata(client);
?? ?struct ov13850 *ov13850 = to_ov13850(sd);

?? ?return __ov13850_power_on(ov13850);
}

static int ov13850_runtime_suspend(struct device *dev)
{
?? ?struct i2c_client *client = to_i2c_client(dev);
?? ?struct v4l2_subdev *sd = i2c_get_clientdata(client);
?? ?struct ov13850 *ov13850 = to_ov13850(sd);

?? ?__ov13850_power_off(ov13850);

?? ?return 0;
}

#ifdef CONFIG_VIDEO_V4L2_SUBDEV_API
static int ov13850_open(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh)
{
?? ?struct ov13850 *ov13850 = to_ov13850(sd);
?? ?struct v4l2_mbus_framefmt *try_fmt =
?? ??? ??? ??? ?v4l2_subdev_get_try_format(sd, fh->pad, 0);
?? ?const struct ov13850_mode *def_mode = &supported_modes[0];

?? ?mutex_lock(&ov13850->mutex);
?? ?/* Initialize try_fmt */
?? ?try_fmt->width = def_mode->width;
?? ?try_fmt->height = def_mode->height;
?? ?try_fmt->code = MEDIA_BUS_FMT_SBGGR10_1X10;
?? ?try_fmt->field = V4L2_FIELD_NONE;

?? ?mutex_unlock(&ov13850->mutex);
?? ?/* No crop or compose */

?? ?return 0;
}
#endif

static int ov13850_enum_frame_interval(struct v4l2_subdev *sd,
?? ??? ??? ??? ? ? ? ? struct v4l2_subdev_pad_config *cfg,
?? ??? ??? ??? ? ? ? ? struct v4l2_subdev_frame_interval_enum *fie)
{
?? ?if (fie->index >= ARRAY_SIZE(supported_modes))
?? ??? ?return -EINVAL;

?? ?if (fie->code != MEDIA_BUS_FMT_SBGGR10_1X10)
?? ??? ?return -EINVAL;

?? ?fie->width = supported_modes[fie->index].width;
?? ?fie->height = supported_modes[fie->index].height;
?? ?fie->interval = supported_modes[fie->index].max_fps;
?? ?return 0;
}

static int ov13850_g_mbus_config(struct v4l2_subdev *sd,
?? ??? ??? ??? ?struct v4l2_mbus_config *config)
{
?? ?u32 val = 0;

?? ?val = 1 << (OV13850_LANES - 1) |
?? ? ? ? ?V4L2_MBUS_CSI2_CHANNEL_0 |
?? ? ? ? ?V4L2_MBUS_CSI2_CONTINUOUS_CLOCK;
?? ?config->type = V4L2_MBUS_CSI2;
?? ?config->flags = val;

?? ?return 0;
}

static const struct dev_pm_ops ov13850_pm_ops = {
?? ?SET_RUNTIME_PM_OPS(ov13850_runtime_suspend,
?? ??? ??? ? ? ov13850_runtime_resume, NULL)
};

#ifdef CONFIG_VIDEO_V4L2_SUBDEV_API
static const struct v4l2_subdev_internal_ops ov13850_internal_ops = {
?? ?.open = ov13850_open,
};
#endif

static const struct v4l2_subdev_core_ops ov13850_core_ops = {
?? ?.s_power = ov13850_s_power,
?? ?.ioctl = ov13850_ioctl,
#ifdef CONFIG_COMPAT
?? ?.compat_ioctl32 = ov13850_compat_ioctl32,
#endif
};

static const struct v4l2_subdev_video_ops ov13850_video_ops = {
?? ?.s_stream = ov13850_s_stream,
?? ?.g_frame_interval = ov13850_g_frame_interval,
?? ?.g_mbus_config = ov13850_g_mbus_config,
};

static const struct v4l2_subdev_pad_ops ov13850_pad_ops = {
?? ?.enum_mbus_code = ov13850_enum_mbus_code,
?? ?.enum_frame_size = ov13850_enum_frame_sizes,
?? ?.enum_frame_interval = ov13850_enum_frame_interval,
?? ?.get_fmt = ov13850_get_fmt,
?? ?.set_fmt = ov13850_set_fmt,
};

static const struct v4l2_subdev_ops ov13850_subdev_ops = {
?? ?.core?? ?= &ov13850_core_ops,
?? ?.video?? ?= &ov13850_video_ops,
?? ?.pad?? ?= &ov13850_pad_ops,
};

static int ov13850_set_ctrl(struct v4l2_ctrl *ctrl)
{
?? ?struct ov13850 *ov13850 = container_of(ctrl->handler,
?? ??? ??? ??? ??? ? ? ? struct ov13850, ctrl_handler);
?? ?struct i2c_client *client = ov13850->client;
?? ?s64 max;
?? ?int ret = 0;

?? ?/* Propagate change of current control to all related controls */
?? ?switch (ctrl->id) {
?? ?case V4L2_CID_VBLANK:
?? ??? ?/* Update max exposure while meeting expected vblanking */
?? ??? ?max = ov13850->cur_mode->height + ctrl->val - 4;
?? ??? ?__v4l2_ctrl_modify_range(ov13850->exposure,
?? ??? ??? ??? ??? ? ov13850->exposure->minimum, max,
?? ??? ??? ??? ??? ? ov13850->exposure->step,
?? ??? ??? ??? ??? ? ov13850->exposure->default_value);
?? ??? ?break;
?? ?}

?? ?if (!pm_runtime_get_if_in_use(&client->dev))
?? ??? ?return 0;

?? ?switch (ctrl->id) {
?? ?case V4L2_CID_EXPOSURE:
?? ??? ?/* 4 least significant bits of expsoure are fractional part */
?? ??? ?ret = ov13850_write_reg(ov13850->client,
?? ??? ??? ??? ??? ?OV13850_REG_EXPOSURE,
?? ??? ??? ??? ??? ?OV13850_REG_VALUE_24BIT,
?? ??? ??? ??? ??? ?ctrl->val << 4);
?? ??? ?break;
?? ?case V4L2_CID_ANALOGUE_GAIN:
?? ??? ?ret = ov13850_write_reg(ov13850->client,
?? ??? ??? ??? ??? ?OV13850_REG_GAIN_H,
?? ??? ??? ??? ??? ?OV13850_REG_VALUE_08BIT,
?? ??? ??? ??? ??? ?(ctrl->val >> OV13850_GAIN_H_SHIFT) &
?? ??? ??? ??? ??? ?OV13850_GAIN_H_MASK);
?? ??? ?ret |= ov13850_write_reg(ov13850->client,
?? ??? ??? ??? ??? ? OV13850_REG_GAIN_L,
?? ??? ??? ??? ??? ? OV13850_REG_VALUE_08BIT,
?? ??? ??? ??? ??? ? ctrl->val & OV13850_GAIN_L_MASK);
?? ??? ?break;
?? ?case V4L2_CID_VBLANK:
?? ??? ?ret = ov13850_write_reg(ov13850->client,
?? ??? ??? ??? ??? ?OV13850_REG_VTS,
?? ??? ??? ??? ??? ?OV13850_REG_VALUE_16BIT,
?? ??? ??? ??? ??? ?ctrl->val + ov13850->cur_mode->height);
?? ??? ?break;
?? ?case V4L2_CID_TEST_PATTERN:
?? ??? ?ret = ov13850_enable_test_pattern(ov13850, ctrl->val);
?? ??? ?break;
?? ?default:
?? ??? ?dev_warn(&client->dev, "%s Unhandled id:0x%x, val:0x%x\n",
?? ??? ??? ? __func__, ctrl->id, ctrl->val);
?? ??? ?break;
?? ?}

?? ?pm_runtime_put(&client->dev);

?? ?return ret;
}

static const struct v4l2_ctrl_ops ov13850_ctrl_ops = {
?? ?.s_ctrl = ov13850_set_ctrl,
};

static int ov13850_initialize_controls(struct ov13850 *ov13850)
{
?? ?const struct ov13850_mode *mode;
?? ?struct v4l2_ctrl_handler *handler;
?? ?struct v4l2_ctrl *ctrl;
?? ?s64 exposure_max, vblank_def;
?? ?u32 h_blank;
?? ?int ret;

?? ?handler = &ov13850->ctrl_handler;
?? ?mode = ov13850->cur_mode;
?? ?ret = v4l2_ctrl_handler_init(handler, 8);
?? ?if (ret)
?? ??? ?return ret;
?? ?handler->lock = &ov13850->mutex;

?? ?ctrl = v4l2_ctrl_new_int_menu(handler, NULL, V4L2_CID_LINK_FREQ,
?? ??? ??? ??? ? ? ? ?0, 0, link_freq_menu_items);
?? ?if (ctrl)
?? ??? ?ctrl->flags |= V4L2_CTRL_FLAG_READ_ONLY;

?? ?v4l2_ctrl_new_std(handler, NULL, V4L2_CID_PIXEL_RATE,
?? ??? ??? ? ?0, OV13850_PIXEL_RATE, 1, OV13850_PIXEL_RATE);

?? ?h_blank = mode->hts_def - mode->width;
?? ?ov13850->hblank = v4l2_ctrl_new_std(handler, NULL, V4L2_CID_HBLANK,
?? ??? ??? ??? ?h_blank, h_blank, 1, h_blank);
?? ?if (ov13850->hblank)
?? ??? ?ov13850->hblank->flags |= V4L2_CTRL_FLAG_READ_ONLY;

?? ?vblank_def = mode->vts_def - mode->height;
?? ?ov13850->vblank = v4l2_ctrl_new_std(handler, &ov13850_ctrl_ops,
?? ??? ??? ??? ?V4L2_CID_VBLANK, vblank_def,
?? ??? ??? ??? ?OV13850_VTS_MAX - mode->height,
?? ??? ??? ??? ?1, vblank_def);

?? ?exposure_max = mode->vts_def - 4;
?? ?ov13850->exposure = v4l2_ctrl_new_std(handler, &ov13850_ctrl_ops,
?? ??? ??? ??? ?V4L2_CID_EXPOSURE, OV13850_EXPOSURE_MIN,
?? ??? ??? ??? ?exposure_max, OV13850_EXPOSURE_STEP,
?? ??? ??? ??? ?mode->exp_def);

?? ?ov13850->anal_gain = v4l2_ctrl_new_std(handler, &ov13850_ctrl_ops,
?? ??? ??? ??? ?V4L2_CID_ANALOGUE_GAIN, OV13850_GAIN_MIN,
?? ??? ??? ??? ?OV13850_GAIN_MAX, OV13850_GAIN_STEP,
?? ??? ??? ??? ?OV13850_GAIN_DEFAULT);

?? ?ov13850->test_pattern = v4l2_ctrl_new_std_menu_items(handler,
?? ??? ??? ??? ?&ov13850_ctrl_ops, V4L2_CID_TEST_PATTERN,
?? ??? ??? ??? ?ARRAY_SIZE(ov13850_test_pattern_menu) - 1,
?? ??? ??? ??? ?0, 0, ov13850_test_pattern_menu);

?? ?if (handler->error) {
?? ??? ?ret = handler->error;
?? ??? ?dev_err(&ov13850->client->dev,
?? ??? ??? ?"Failed to init controls(%d)\n", ret);
?? ??? ?goto err_free_handler;
?? ?}

?? ?ov13850->subdev.ctrl_handler = handler;

?? ?return 0;

err_free_handler:
?? ?v4l2_ctrl_handler_free(handler);

?? ?return ret;
}

static int ov13850_check_sensor_id(struct ov13850 *ov13850,
?? ??? ??? ??? ? ? struct i2c_client *client)
{
?? ?struct device *dev = &ov13850->client->dev;
?? ?u32 id = 0;
?? ?int ret;
?? ?int time=5;

?? ?while (time--){
?? ??? ?ret = ov13850_read_reg(client, OV13850_REG_CHIP_ID,
?? ??? ??? ??? ? ? ? ? OV13850_REG_VALUE_16BIT, &id);
?? ??? ?if (id != CHIP_ID) {
?? ??? ??? ?dev_err(dev, "Unexpected sensor id(%06x), ret(%d)\n", id, ret);
?? ??? ??? ?if (time==1){
?? ??? ??? ??? ?if(client->addr == OV13850_I2C_ADDR1)
?? ??? ??? ??? ??? ?client->addr = OV13850_I2C_ADDR0;
?? ??? ??? ??? ?else
?? ??? ??? ??? ??? ?client->addr = OV13850_I2C_ADDR1;
?? ??? ??? ?}
?? ??? ?udelay(10);
?? ??? ?}
?? ?}

?? ?ret = ov13850_read_reg(client, OV13850_CHIP_REVISION_REG,
?? ??? ??? ? ? ? ? OV13850_REG_VALUE_08BIT, &id);
?? ?if (ret) {
?? ??? ?dev_err(dev, "Read chip revision register error\n");
?? ??? ?return ret;
?? ?}

?? ?if (id == OV13850_R2A)
?? ??? ?ov13850_global_regs = ov13850_global_regs_r2a;
?? ?else
?? ??? ?ov13850_global_regs = ov13850_global_regs_r1a;
?? ?dev_info(dev, "Detected OV%06x sensor, REVISION 0x%x\n", CHIP_ID, id);

?? ?return 0;
}

static int ov13850_configure_regulators(struct ov13850 *ov13850)
{
?? ?unsigned int i;

?? ?for (i = 0; i < OV13850_NUM_SUPPLIES; i++)
?? ??? ?ov13850->supplies[i].supply = ov13850_supply_names[i];

?? ?return devm_regulator_bulk_get(&ov13850->client->dev,
?? ??? ??? ??? ? ? ? ? OV13850_NUM_SUPPLIES,
?? ??? ??? ??? ? ? ? ? ov13850->supplies);
}

static void free_gpio(struct ov13850 *ov13850)
{
?? ?dev_info(&ov13850->client->dev, "%s(%d) enter!\n", __func__, __LINE__);

?? ?if (IS_ERR(ov13850->pwdn_gpio)){
?? ??? ? ? gpio_free(desc_to_gpio(ov13850->pwdn_gpio));
?? ?}
?? ?if (IS_ERR(ov13850->reset_gpio)){
?? ??? ? ? gpio_free(desc_to_gpio(ov13850->reset_gpio));
?? ?}
}

static int ov13850_probe(struct i2c_client *client,
?? ??? ??? ? const struct i2c_device_id *id)
{
?? ?struct device *dev = &client->dev;
?? ?struct device_node *node = dev->of_node;
?? ?struct ov13850 *ov13850;
?? ?struct v4l2_subdev *sd;
?? ?char facing[2];
?? ?int ret;
?? ?struct gpio_desc *pwdn_gpios = NULL, *reset_gpios = NULL;
?? ?unsigned int pwdn = -1, reset = -1;
?? ?enum of_gpio_flags flags;?? ?

?? ?dev_info(dev, "driver version: %02x.%02x.%02x",
?? ??? ?DRIVER_VERSION >> 16,
?? ??? ?(DRIVER_VERSION & 0xff00) >> 8,
?? ??? ?DRIVER_VERSION & 0x00ff);

?? ?ov13850 = devm_kzalloc(dev, sizeof(*ov13850), GFP_KERNEL);
?? ?if (!ov13850)
?? ??? ?return -ENOMEM;

?? ?ret = of_property_read_u32(node, RKMODULE_CAMERA_MODULE_INDEX,
?? ??? ??? ??? ? ? &ov13850->module_index);
?? ?ret |= of_property_read_string(node, RKMODULE_CAMERA_MODULE_FACING,
?? ??? ??? ??? ? ? ? ? &ov13850->module_facing);
?? ?ret |= of_property_read_string(node, RKMODULE_CAMERA_MODULE_NAME,
?? ??? ??? ??? ? ? ? ? &ov13850->module_name);
?? ?ret |= of_property_read_string(node, RKMODULE_CAMERA_LENS_NAME,
?? ??? ??? ??? ? ? ? ? &ov13850->len_name);
?? ?if (ret) {
?? ??? ?dev_err(dev, "could not get module information!\n");
?? ??? ?return -EINVAL;
?? ?}

?? ?ov13850->client = client;
?? ?ov13850->cur_mode = &supported_modes[0];

?? ?ret = of_property_read_u32(node, "firefly,clkout-enabled-index", &clkout_enabled_index);
?? ?if (ret){
?? ??? ?dev_err(dev, "could not get firefly,clkout-enabled-index, default output xvclk .");
?? ??? ?clkout_enabled_index = 1;
?? ?}

?? ?if (clkout_enabled_index){
?? ??? ?ov13850->xvclk = devm_clk_get(dev, "xvclk");
?? ??? ?if (IS_ERR(ov13850->xvclk)) {
?? ??? ??? ?dev_err(dev, "Failed to get xvclk\n");
?? ??? ??? ?return -EINVAL;
?? ??? ?}
?? ?}

?? ?ov13850->power_gpio = devm_gpiod_get(dev, "power", GPIOD_OUT_LOW);
?? ?if (IS_ERR(ov13850->power_gpio))
?? ??? ?dev_warn(dev, "Failed to get power-gpios, maybe no use\n");

?? ?ov13850->reset_gpio = devm_gpiod_get(dev, "reset", GPIOD_OUT_LOW);
?? ?if (IS_ERR(ov13850->reset_gpio)) {
?? ? ? dev_info(dev, "Failed to get reset-gpios, maybe no use\n");
?? ? ? reset = of_get_named_gpio_flags(node, "reset-gpios", 0, &flags);
?? ? ? reset_gpios = gpio_to_desc(reset);
?? ? ? if (IS_ERR(reset_gpios))
? ? ? ? ? dev_info(dev, "Failed to get reset-gpios again\n");
?? ? ? else
? ? ? ? ? ?ov13850->reset_gpio = reset_gpios;
?? ?}

?? ?ov13850->pwdn_gpio = devm_gpiod_get(dev, "pwdn", GPIOD_OUT_LOW);
?? ?if (IS_ERR(ov13850->pwdn_gpio)) {
?? ? ?dev_info(dev, "Failed to get pwdn-gpios, maybe no use\n");
?? ? ? pwdn = of_get_named_gpio_flags(node, "pwdn-gpios", 0, &flags);
?? ? ? pwdn_gpios = gpio_to_desc(pwdn);
?? ? ? if (IS_ERR(pwdn_gpios))
? ? ? ? ? ?dev_info(dev, "Failed to get pwdn-gpios again\n");
?? ? ? else
? ? ? ? ? ?ov13850->pwdn_gpio = pwdn_gpios;
?? ?}

?? ?ret = ov13850_configure_regulators(ov13850);
?? ?if (ret) {
?? ??? ?dev_err(dev, "Failed to get power regulators\n");
?? ??? ?return ret;
?? ?}

?? ?ov13850->pinctrl = devm_pinctrl_get(dev);
?? ?if (!IS_ERR(ov13850->pinctrl)) {
?? ??? ?ov13850->pins_default =
?? ??? ??? ?pinctrl_lookup_state(ov13850->pinctrl,
?? ??? ??? ??? ??? ? ? ? OF_CAMERA_PINCTRL_STATE_DEFAULT);
?? ??? ?if (IS_ERR(ov13850->pins_default))
?? ??? ??? ?dev_err(dev, "could not get default pinstate\n");

?? ??? ?ov13850->pins_sleep =
?? ??? ??? ?pinctrl_lookup_state(ov13850->pinctrl,
?? ??? ??? ??? ??? ? ? ? OF_CAMERA_PINCTRL_STATE_SLEEP);
?? ??? ?if (IS_ERR(ov13850->pins_sleep))
?? ??? ??? ?dev_err(dev, "could not get sleep pinstate\n");
?? ?}

?? ?mutex_init(&ov13850->mutex);

?? ?sd = &ov13850->subdev;
?? ?v4l2_i2c_subdev_init(sd, client, &ov13850_subdev_ops);
?? ?ret = ov13850_initialize_controls(ov13850);
?? ?if (ret)
?? ??? ?goto err_destroy_mutex;

?? ?ret = __ov13850_power_on(ov13850);
?? ?if (ret)
?? ??? ?goto err_free_handler;

?? ?ret = ov13850_check_sensor_id(ov13850, client);
?? ?if (ret)
?? ??? ?goto err_power_off;

#ifdef CONFIG_VIDEO_V4L2_SUBDEV_API
?? ?sd->internal_ops = &ov13850_internal_ops;
?? ?sd->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
#endif
#if defined(CONFIG_MEDIA_CONTROLLER)
?? ?ov13850->pad.flags = MEDIA_PAD_FL_SOURCE;
?? ?sd->entity.function = MEDIA_ENT_F_CAM_SENSOR;
?? ?ret = media_entity_pads_init(&sd->entity, 1, &ov13850->pad);
?? ?if (ret < 0)
?? ??? ?goto err_power_off;
#endif

?? ?memset(facing, 0, sizeof(facing));
?? ?if (strcmp(ov13850->module_facing, "back") == 0)
?? ??? ?facing[0] = 'b';
?? ?else
?? ??? ?facing[0] = 'f';

?? ?snprintf(sd->name, sizeof(sd->name), "m%02d_%s_%s %s",
?? ??? ? ov13850->module_index, facing,
?? ??? ? OV13850_NAME, dev_name(sd->dev));
?? ?ret = v4l2_async_register_subdev_sensor_common(sd);
?? ?if (ret) {
?? ??? ?dev_err(dev, "v4l2 async register subdev failed\n");
?? ??? ?goto err_clean_entity;
?? ?}

?? ?pm_runtime_set_active(dev);
?? ?pm_runtime_enable(dev);
?? ?pm_runtime_idle(dev);

?? ?return 0;

err_clean_entity:
#if defined(CONFIG_MEDIA_CONTROLLER)
?? ?media_entity_cleanup(&sd->entity);
#endif
err_power_off:
?? ?__ov13850_power_off(ov13850);
?? ?free_gpio(ov13850);
err_free_handler:
?? ?v4l2_ctrl_handler_free(&ov13850->ctrl_handler);
err_destroy_mutex:
?? ?mutex_destroy(&ov13850->mutex);

?? ?return ret;
}

static int ov13850_remove(struct i2c_client *client)
{
?? ?struct v4l2_subdev *sd = i2c_get_clientdata(client);
?? ?struct ov13850 *ov13850 = to_ov13850(sd);

?? ?v4l2_async_unregister_subdev(sd);
#if defined(CONFIG_MEDIA_CONTROLLER)
?? ?media_entity_cleanup(&sd->entity);
#endif
?? ?v4l2_ctrl_handler_free(&ov13850->ctrl_handler);
?? ?mutex_destroy(&ov13850->mutex);

?? ?pm_runtime_disable(&client->dev);
?? ?if (!pm_runtime_status_suspended(&client->dev))
?? ??? ?__ov13850_power_off(ov13850);
?? ?pm_runtime_set_suspended(&client->dev);

?? ?return 0;
}

#if IS_ENABLED(CONFIG_OF)
static const struct of_device_id ov13850_of_match[] = {
?? ?{ .compatible = "ovti,ov13850" },
?? ?{},
};
MODULE_DEVICE_TABLE(of, ov13850_of_match);
#endif

static const struct i2c_device_id ov13850_match_id[] = {
?? ?{ "ovti,ov13850", 0 },
?? ?{ },
};

static struct i2c_driver ov13850_i2c_driver = {
?? ?.driver = {
?? ??? ?.name = OV13850_NAME,
?? ??? ?.pm = &ov13850_pm_ops,
?? ??? ?.of_match_table = of_match_ptr(ov13850_of_match),
?? ?},
?? ?.probe?? ??? ?= &ov13850_probe,
?? ?.remove?? ??? ?= &ov13850_remove,
?? ?.id_table?? ?= ov13850_match_id,
};

static int __init sensor_mod_init(void)
{
?? ?return i2c_add_driver(&ov13850_i2c_driver);
}

static void __exit sensor_mod_exit(void)
{
?? ?i2c_del_driver(&ov13850_i2c_driver);
}

device_initcall_sync(sensor_mod_init);
module_exit(sensor_mod_exit);

MODULE_DESCRIPTION("OmniVision ov13850 sensor driver");
MODULE_LICENSE("GPL v2");

参考资料：
http://www.friendlyelec.com.cn/agent.asp
http://www.friendlyelec.com.cn/
https://download.friendlyelec.com/NanoPC-T4
https://wiki.friendlyelec.com/wiki/index.php/NanoPC-T4/zh#.E4.B8.8B.E8.BD.BDAndroid10.E6.BA.90.E4.BB.A3.E7.A0.81

https://item.taobao.com/item.htm?spm=a1z09.2.0.0.37562e8dcotDm6&id=570312633249&_u=7ju3ku004a
友善NanoPC-T4瑞芯微RK3399开发板ROS双摄4K播放开源AI智能安卓10

WiKi维基教程（固件介绍，使用说明，操作步骤等）
http://wiki.friendlyelec.com/wiki/index.php/NanoPC-T4
系统固件下载
https://dl.friendlyelec.com/nanopct4
原理图(pdf格式)
http://wiki.friendlyelec.com/wiki/images/e/e0/NanoPC-T4-1902-Schematic.pdf
尺寸图(dxf格式)
http://wiki.friendlyelec.com/wiki/images/b/bc/NanoPC-T4_1802_Drawing%28dxf%29.zip

http://www.friendlyelec.com.cn/nanopi-m4.asp
NanoPi M4 | NanoPi M4V2

https://wiki.friendlyelec.com/wiki/index.php/NanoPi_M4/zh
15.3 编译Android10源代码
15.3.1 下载Android10源代码
有以下两种途径获取 Android10 的源代码，都需要联网:

使用网盘里的git repo压缩包
网盘下载地址: 点击进入

https://download.friendlyelec.com/NanoPiM4
https://pan.baidu.com/share/init?surl=oBLn9H31hILJKEPQXgrUog
提取码：yn6r