08-22-2018, 10:44 PM
Hi everyone
I'd like to change the setting value (resolution, format, porch, etc..) of DSI.
Therefore, do the following procedure.
1. edit /boot/uEnv.txt
add disp_screen0=lcd
2. edit /boot/pine64/sun50i-a64-pine64-plus.dtb
The modified part is lcd_x and lcd_y.
3. reboot
When rebooted, a kernel panic has occurred.
Is there a mistake in the procedure?
Thank you.
I'd like to change the setting value (resolution, format, porch, etc..) of DSI.
Therefore, do the following procedure.
1. edit /boot/uEnv.txt
add disp_screen0=lcd
2. edit /boot/pine64/sun50i-a64-pine64-plus.dtb
Code:
lcd0@01c0c000 {
compatible = "allwinner,sunxi-lcd0";
pinctrl-names = "active", "sleep";
status = "okay";
device_type = "lcd0";
lcd_used = <0x0>;
lcd_driver_name = "mb709_mipi";
lcd_backlight = <0x32>;
lcd_if = <0x4>;
lcd_x = <0x216>;
lcd_y = <0x4B0>;
lcd_width = <0x0>;
lcd_height = <0x0>;
lcd_dclk_freq = <0x37>;
lcd_pwm_used = <0x1>;
lcd_pwm_ch = <0x10>;
lcd_pwm_freq = <0xc350>;
lcd_pwm_pol = <0x1>;
lcd_pwm_max_limit = <0xfa>;
lcd_hbp = <0x78>;
lcd_ht = <0x604>;
lcd_hspw = <0x14>;
lcd_vbp = <0x17>;
lcd_vt = <0x27b>;
lcd_vspw = <0x2>;
lcd_dsi_if = <0x2>;
lcd_dsi_lane = <0x4>;
lcd_dsi_format = <0x0>;
lcd_dsi_eotp = <0x0>;
lcd_dsi_vc = <0x0>;
lcd_dsi_te = <0x0>;
lcd_frm = <0x0>;
lcd_gamma_en = <0x0>;
lcd_bright_curve_en = <0x0>;
lcd_cmap_en = <0x0>;
lcd_bl_en = <0x30 0x7 0xa 0x1 0x0 0xffffffff 0x1>;
lcd_bl_en_power = "none";
lcd_power = "vcc-mipi";
lcd_fix_power = "vcc-dsi-33";
lcd_gpio_0 = <0x30 0x3 0x18 0x1 0x0 0xffffffff 0x1>;
};The modified part is lcd_x and lcd_y.
3. reboot
When rebooted, a kernel panic has occurred.
Is there a mistake in the procedure?
Thank you.