i dont know what happen. if i enable backlight with following settings on
cubieboard2
sun4i-drm will fail to load so if i remove enable-gpios from backlight
and palace it in panel properties it will be okay
i think it is odd thing and should be possible BUG!
/ {
panel: panel {
compatible = "panel-lvds";
pinctrl-names = "default";
pinctrl-0 = <&lcd_lvds0_pins>;
backlight = <&backlight>;
power-supply = <®_vcc3v3>;
#address-cells = <1>;
#size-cells = <0>;
port {
lvds_panel_in: endpoint {
remote-endpoint = <&display_out_rgb>;
};
};
};
backlight: backlight {
compatible = "pwm-backlight";
pwms = <&pwm 0 50000 0>;
brightness-levels = <0 10 20 30 40 50 60 70 80 90 100>;
enable-gpios = <&pio 7 7 GPIO_ACTIVE_HIGH>; /* PH7 */
power-supply = <®_vcc3v3>;
};
};
&pwm {
pinctrl-names = "default";
pinctrl-0 = <&pwm0_pin>;
status = "okay";
};
&tcon0 {
ports {
tcon0_out: port@1 {
display_out_rgb: endpoint@0 {
reg = <0>;
remote-endpoint = <&lvds_panel_in>;
allwinner,tcon-channel = <0>;
};
};
};
};
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