spi ili9341 screen black after update to 5.10.60-sunxi ( fb fbtft )

[naty6458]

spi ili9341 screen black after update to 5.10.60-sunxi ( fb fbtft )

[notro]

i update my OrangePiZero OS from Linux 5.10.43-sunxi to Linux 5.10.60-sunxi
my screen fbtft spi lcd stop working , the screen is black.

fbtft history:

• v5.10.43
• v5.10.60

This patch is new in 5.10.60 and looks like it changes the reset gpio polarity:
staging: fbtft: Rectify GPIO handling

Also backlight control has been broken since 5.4, fixed in 5.10.83: #571 (edit: if backlight is built as a module)

[naty6458]

Hi First of all thank you very much.
I finally managed to turn on the screen,
The problem was, in the polarization of the LED pin (backlight).
Before that it was on 0 when I switched it to 1 everything suddenly works.
The connection to the screen worked fine, but there was no lighting to display the content :-)

The DTS file that worked for me is: (ORANGE PI ZERO)

reset ---> PA7
led ---> PA6
dc ----> PA2

/dts-v1/;
/plugin/;

/ {
	compatible = "allwinner,sun8i-h3";

    fragment@0 {
        target-path = "/aliases";
        __overlay__ {
            spi1 = "/soc/spi@01c69000";
        };
    };

	fragment@1 {
		target = <&spi1>;
		__overlay__ {
			status = "okay";

			spidev@0{
				status = "disabled";
			};

			spidev@1{
				status = "disabled";
			};
		};
	};

	fragment@2 {
		target = <&pio>;
		__overlay__ {
			opiz_display_pins: opiz_display_pins {
                pins = "PA7", "PA2", "PA6";
                function = "gpio_out";
			};
		};
	};

	fragment@3 {
		target = <&spi1>;
		__overlay__ {
			/* needed to avoid dtc warning */
			#address-cells = <1>;
			#size-cells = <0>;
			opizdisplay: opiz-display@0{
				compatible = "ilitek,ili9341";
				reg = <0>;
				pinctrl-names = "default";
				pinctrl-0 = <&opiz_display_pins>;
				spi-max-frequency = <8000000>;
				rotate = <270>;
				bgr;
				fps = <30>;
				buswidth = <8>;
				reset-gpios = <&pio 0 7 1>;
				dc-gpios = <&pio 0 2 0>;
				led-gpios= <&pio 0 6 1>;
				debug = <3>;
				status="okay";
			};
		};
	};
	__overrides__ {
		speed =   <&opizdisplay>,"spi-max-frequency:0";
		rotate =  <&opizdisplay>,"rotate:0";
		fps =     <&opizdisplay>,"fps:0";
		debug =   <&opizdisplay>,"debug:0";
        };
};

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