// Overlay for Maxim MAX98357A audio DAC

// dtparams:
//     no-sdmode  - SD_MODE pin not managed by driver.
//     sdmode-pin - Specify GPIO pin to which SD_MODE is connected (default 4).

/dts-v1/;
/plugin/;

/ {
	compatible = "brcm,bcm2835";

	/* Enable I2S */
	fragment@0 {
		target = <&i2s>;
		__overlay__ {
			status = "okay";
		};
	};

	/* DAC whose SD_MODE pin is managed by driver (via GPIO pin) */
	fragment@1 {
		target-path = "/";
		__overlay__ {
			max98357a_dac: max98357a {
				compatible = "maxim,max98357a";
				#sound-dai-cells = <0>;
				sdmode-gpios = <&gpio 4 0>;   /* 2nd word overwritten by sdmode-pin parameter */
				status = "okay";
			};
		};
	};

	/* DAC whose SD_MODE pin is not managed by driver */
	fragment@2 {
		target-path = "/";
		__dormant__ {
			max98357a_nsd: max98357a {
				compatible = "maxim,max98357a";
				#sound-dai-cells = <0>;
				status = "okay";
			};
		};
	};

	/* Soundcard connecting I2S to DAC with SD_MODE */
	fragment@3 {
		target = <&sound>;
		__overlay__ {
			compatible = "simple-audio-card";
			simple-audio-card,format = "i2s";
			simple-audio-card,name = "MAX98357A";
			status = "okay";
			simple-audio-card,cpu {
				sound-dai = <&i2s>;
			};
			simple-audio-card,codec {
				sound-dai = <&max98357a_dac>;
			};
		};
	};

	/* Soundcard connecting I2S to DAC without SD_MODE */
	fragment@4 {
		target = <&sound>;
		__dormant__ {
			compatible = "simple-audio-card";
			simple-audio-card,format = "i2s";
			simple-audio-card,name = "MAX98357A";
			status = "okay";
			simple-audio-card,cpu {
				sound-dai = <&i2s>;
			};
			simple-audio-card,codec {
				sound-dai = <&max98357a_nsd>;
			};
		};
	};

	__overrides__ {
		no-sdmode  = <0>,"-1+2-3+4";
		sdmode-pin = <&max98357a_dac>,"sdmode-gpios:4";
	};
};