guyuandongfang 发布的最佳帖子

1. 屏幕驱动初始中使用dsi_dcs_wr写屏幕配置，进入高速video模式之后,mipi的时钟和数据脚没有输出了；而屏初始化中用dsi_gen_wr写屏幕配置，de正常了，irq也有变化了，屏幕还是显示不了； 请教下是哪里配置有问题

dsi_dcs_wr写屏幕配置，启动后 irq无变化

root@TinaLinux:/# cat /sys/class/disp/disp/attr/sys 
screen 0:
de_rate 300000000 hz, ref_fps:57
mgr0: 720x1280 fmt[rgb] cs[0x204] range[full] eotf[0x4] bits[8bits] err[0] force_sync[0] unblank direct_show[false] iommu[1]
dmabuf: cache[0] cache max[0] umap skip[0] umap skip max[0]
        lcd output      backlight(150)  fps:25.5         720x1280
        err:0   skip:0  irq:0   vsync:0 vsync_skip:0
   BUF    enable ch[1] lyr[0] z[16] prem[N] a[pixel 255] fmt[  0] fb[ 720,1280; 720,1280; 720,1280] crop[   0,   0, 720,1280] frame[   0,   0, 720,1280] addr[       0,       0,       0] flags[0x       0] trd[0,0]

设备树配置

&lcd0 {
        lcd_used            = <1>;

        lcd_driver_name     = "ili9881d_dsi_panel";

        lcd_bl_0_percent    = <0>;
        lcd_bl_40_percent   = <23>;
        lcd_bl_100_percent  = <100>;
        lcd_backlight       = <150>;

        lcd_if              = <4>;
        lcd_x               = <720>;
        lcd_y               = <1280>;
        lcd_width           = <62>;
        lcd_height          = <110>;
        lcd_dclk_freq       = <69>;

        lcd_pwm_used        = <1>;
        lcd_pwm_ch          = <7>;
        lcd_pwm_freq        = <50000>;
        lcd_pwm_pol         = <0>;
        lcd_pwm_max_limit   = <255>;

        lcd_hbp             = <120>;
        lcd_ht              = <920>;
        lcd_hspw            = <40>;
        lcd_vbp             = <20>;
        lcd_vt              = <1315>;
        lcd_vspw            = <4>;

        lcd_dsi_if          = <0>;
        lcd_dsi_lane        = <4>;
        lcd_dsi_format      = <0>;
        lcd_dsi_te          = <0>;
        lcd_dsi_eotp        = <0>;

        lcd_frm             = <0>;
        lcd_io_phase        = <0x0000>;
        lcd_hv_clk_phase    = <0>;
        lcd_hv_sync_polarity= <0>;
        lcd_gamma_en        = <0>;
        lcd_bright_curve_en = <0>;
        lcd_cmap_en         = <0>;

        lcdgamma4iep        = <22>;

        lcd_gpio_0 = <&pio PB  5 GPIO_ACTIVE_HIGH>;
        pinctrl-0 = <&dsi4lane_pins_a>;