nrf52840_mdk.overlay

/*
* nRF52840_mdk			ST7789V (240x240)
* 
* P0.28 (RESET)			RES
* P0.29 (D5)			DC (DATA/CMD)
* P0.27 (SCK)			SCL
* P0.26 (MOSI)			SDA
*/

/ {
   chosen {
	   zephyr,display = &st7789v;
   };
};

&pinctrl {
	spi0_default: spi0_default {
		group1 {
			psels = <NRF_PSEL(SPIM_SCK, 0, 27)>,
				<NRF_PSEL(SPIM_MOSI, 0, 26)>,
				<NRF_PSEL(SPIM_MISO, 0, 29)>;
		};
	};

	spi0_sleep: spi0_sleep {
		group1 {
			psels = <NRF_PSEL(SPIM_SCK, 0, 27)>,
				<NRF_PSEL(SPIM_MOSI, 0, 26)>,
				<NRF_PSEL(SPIM_MISO, 0, 29)>;
			low-power-enable;
		};
	};
};

&spi0 {
	compatible = "nordic,nrf-spim";
	status = "okay";
	pinctrl-0 = <&spi0_default>;
	pinctrl-1 = <&spi0_sleep>;
	cs-gpios = <&gpio0 25 GPIO_ACTIVE_LOW>;
	pinctrl-names = "default", "sleep";
	
	st7789v: st7789v@0 {
		compatible = "sitronix,st7789v";
		label = "ST7789V";
		spi-max-frequency = <20000000>;
		reg = <0>;
		cmd-data-gpios = <&gpio0 31 GPIO_ACTIVE_LOW>;
		reset-gpios = <&gpio0 30 GPIO_ACTIVE_LOW>;
		width = <240>;
		height = <240>;
		x-offset = <0>;
		y-offset = <0>;
		vcom = <0x19>;
		gctrl = <0x35>;
		vrhs = <0x12>;
		vdvs = <0x20>;
		mdac = <0x00>;
		lcm = <0x2c>;
		colmod = <0x05>;
		gamma = <0x01>;
		porch-param = [0c 0c 00 33 33];
		cmd2en-param = [5a 69 02 01];
		pwctrl1-param = [a4 a1];
		pvgam-param = [D0 04 0D 11 13 2B 3F 54 4C 18 0D 0B 1F 23];
		nvgam-param = [D0 04 0C 11 13 2C 3F 44 51 2F 1F 1F 20 23];
		ram-param = [00 F0];
		rgb-param = [CD 08 14];
	};

};