根据 datasheet 和 硬件设计填写 dts
mipi_dsi_init
1 | disp_mipi_init: mipi_dsi_init{ |
GPIO
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5mipi_lcd_en:mipi_lcd_en {
compatible = "rockchip,lcd_en";
rockchip,gpios = <&gpio1 13 GPIO_ACTIVE_HIGH>;
rockchip,delay = <20>;
};
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5mipi_lcd_rst:mipi_lcd_rst {
compatible = "rockchip,lcd_rst";
rockchip,gpios = <&gpio4 30 GPIO_ACTIVE_HIGH>;
rockchip,delay = <100>;
};
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7backlight: backlight {
status = "disabled";
compatible = "pwm-backlight";
pwms = <&pwm0 0 25000 0>;
brightness-levels = <
...
>;
Display Timing
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26 disp_timings: display-timings {
native-mode = <&timing0>;
compatible = "rockchip,display-timings";
timing0: timing0 {
screen-type = <SCREEN_MIPI>;
lvds-format = <LVDS_8BIT_2>;
out-face = <OUT_P888>;
clock-frequency = <76000000>;
hactive = <800>;
vactive = <1280>;
hback-porch = <80>;
hfront-porch = <80>;
vback-porch = <23>;
vfront-porch = <18>;
hsync-len = <0>;
vsync-len = <0>;
hsync-active = <0>;
vsync-active = <0>;
de-active = <0>;
pixelclk-active = <0>;
swap-rb = <0>;
swap-rg = <0>;
swap-gb = <0>;
//screen-width = <68>;
//screen-hight = <120>;
};
init cmd
屏场给的 Init cmd 序列是 MTK 平台的。
形如1
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4data_array[0]=0x00043902;
data_array[1]=0x8983FFB9;
dsi_set_cmdq(&data_array, 2, 1);
MDELAY(10);
转换规则在 http://blog.csdn.net/dearsq/article/details/52354593
讲的很详细。
不再赘述了。
这个屏竟然有 112 条 inital cmd 。第一次碰到这么多 cmd 的屏。