boards/shields/seeed_xiao_round_display/seeed_xiao_round_display.overlay

/*
 * Copyright (c) 2024, Nicolas Goualard <nicolas.goualard@sfr.fr>
 *
 * SPDX-License-Identifier: Apache-2.0
 */

#include <freq.h>
#include <zephyr/dt-bindings/display/panel.h>

/ {
	chosen {
		zephyr,display = &gc9a01_xiao_round_display;
	};

	vbatt {
		compatible = "voltage-divider";
		io-channels = <&xiao_adc 0>;
		output-ohms = <470000>;
		full-ohms = <940000>;
	};

	lvgl_pointer {
		compatible = "zephyr,lvgl-pointer-input";
		input = <&chsc6x_xiao_round_display>;
	};

	aliases {
		rtc = &pcf8563_xiao_round_display;
	};
};

&xiao_adc {
	status = "okay";
};

/*
 * xiao_serial uses pins D6 and D7 of the Xiao, which are used respectively to
 * control the screen backlight and as touch controller interrupt.
 */
&xiao_serial {
	status = "disabled";
};

&xiao_i2c {
	clock-frequency = < I2C_BITRATE_FAST >;

	pcf8563_xiao_round_display: pcf8563@51 {
		status = "okay";
		compatible = "nxp,pcf8563";
		reg = <0x51>;
	};

	chsc6x_xiao_round_display: chsc6x@2e {
		status = "okay";
		compatible = "chipsemi,chsc6x";
		reg = <0x2e>;
		irq-gpios = <&xiao_d 7 GPIO_ACTIVE_LOW>;
	};
};

&xiao_spi {
	status = "okay";
	cs-gpios = <&xiao_d 1 GPIO_ACTIVE_LOW>, <&xiao_d 2 GPIO_ACTIVE_LOW>;

	gc9a01_xiao_round_display: gc9a01@0 {
		status = "okay";
		compatible = "galaxycore,gc9x01x";
		reg = <0>;
		spi-max-frequency = <DT_FREQ_M(100)>;
		cmd-data-gpios = <&xiao_d 3 GPIO_ACTIVE_HIGH>;
		pixel-format = <PANEL_PIXEL_FORMAT_RGB_565>;
		width = <240>;
		height = <240>;
		display-inversion;
	};

	sdhc_xiao_round_display: sdhc@1 {
		compatible = "zephyr,sdhc-spi-slot";
		reg = <1>;
		status = "okay";
		mmc {
			compatible = "zephyr,sdmmc-disk";
			status = "okay";
		};
		spi-max-frequency = <DT_FREQ_M(24)>;
	};
};