请问为什么D1设备树里面的 lcd0 对应的 "allwinner,sunxi-lcd0" 驱动，在源码里面为什么找不到？

uuuuid LV 6

lichee/linux-5.4/arch/riscv/boot/dts/sunxi/sun20iw1p1.dtsi

lcd0: lcd0@1c0c000 {
                        compatible = "allwinner,sunxi-lcd0";
                        reg = <0x0 0x1c0c000 0x0 0x0>;  /* Fake registers to avoid dtc compiling warnings */
                        pinctrl-names = "active","sleep";
                        status = "okay";
                };

根本搜索不到：

$ grep "allwinner,sunxi-lcd0" -r lichee/linux-5.4/ --include "*.c" --include "*.h"
$
$

BedRock LV 6

刚才问了一下，在dts 钟进行设置，可以配置屏幕参数

源码在：

uuuuid LV 6

lichee/linux-5.4/drivers/video/fbdev/sunxi/disp2/disp/de/disp_lcd.c

static s32 disp_lcd_pin_cfg(struct disp_device *lcd, u32 bon)
{
...
        sprintf(dev_name, "lcd%d", lcd->disp);
        disp_sys_pin_set_state(dev_name,
                               (bon == 1) ?
                               DISP_PIN_STATE_ACTIVE : DISP_PIN_STATE_SLEEP);
...
}

lichee/linux-5.4/drivers/video/fbdev/sunxi/disp2/disp/disp_sys_intf.c

int disp_sys_pin_set_state(char *dev_name, char *name)
{
...
        len = sprintf(compat, "allwinner,sunxi-%s", dev_name);
        if (len > 32)
                __wrn("size of mian_name is out of range\n");
....
}

找到了，貌似调用过程有点曲折。