Define LEDs with mixed colors

[hamza.farooq@xxxxxxxxxxx]

Hello all,

I am toying with the idea of writing a multicolor LED GPIO driver. What would be the right way to define mixed color LEDs (for leds-gpio), in device tree or ACPI?
Consider the following:

leds {
	compatible = "gpio-leds";
	led0 {
		gpios = <&mcu_pio 0 GPIO_ACTIVE_LOW>;
		color = <LED_COLOR_ID_RED>;
	};

	led1 {
		gpios = <&mcu_pio 1 GPIO_ACTIVE_HIGH>;
		color = <LED_COLOR_ID_GREEN>;
	};
	led2 {
		gpios = <&mcu_pio 0 GPIO_ACTIVE_LOW
			&mcu_pio 1 GPIO_ACTIVE_LOW>;
		color = <LED_COLOR_ID_AMBER>;
	};
};

This probably won't work as "gpios" seem to be single object in gpio-leds driver code, but what can I do to achieve something similar?
It is important to define this LED in DT/ACPI in order for the user app to see it in the /sys/class/led folder, without having to write platform-specific driver.

Best,
Hamza