RK3399本身不带LVDS输出，rk3288就有各种接口，差！！！！
可是他的性能强啊，我们还是分析怎么实现。
实现框架：
原理图：
8775供电
lvds标准接口
看到了吧，硬件如此简单。
软件有点麻烦了。
要弄一推补丁
修个各种mipi指令、gpio，调VOB通道等等
dts配置
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= <1920>;//1536
vactive= <1080>;//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>;
&dsi {
status ="okay";
rockchip,lane-rate= <900>;
panel@0 {
//status= "okay";
compatible="simple-panel-dsi";
reg= <0>;
backlight= <&backlight>;
//power-supply= <&vcc_lcd>;
enable-gpios= <&gpio3 16 GPIO_ACTIVE_HIGH>;
//enable-gpios= <&gpio2 9 GPIO_ACTIVE_HIGH>;// tc35 stby 2_b1
reset-gpios = <&gpio2 27GPIO_ACTIVE_LOW>;
dsi,flags= <(MIPI_DSI_MODE_VIDEO | MIPI_DSI_MODE_VIDEO_BURST |
MIPI_DSI_MODE_LPM |MIPI_DSI_MODE_EOT_PACKET)>;
dsi,format= ;
dsi,lanes= <4>;
enable-delay-ms = <35>;
prepare-delay-ms = <6>;
delay,power= <10>;
delay,reset= <20>;
unprepare-delay-ms = <0>;
disable-delay-ms = <20>;
size,width= <120>;
size,height = <170>;
status = "okay";
timing1: timing1 {
clock-frequency= <148500000>;
hactive= <1920>;
vactive= <1080>;
hback-porch = <100>;
hsync-len= <20>;
hfront-porch= <160>;
vback-porch= <25>;
vfront-porch= <10>;
vsync-len= <10>;
hsync-active= <0>;
vsync-active= <0>;
de-active = <0>;
pixelclk-active =<0>;
结果终于搞定
举报
