Commit eb188a2a authored by Nícolas F. R. A. Prado's avatar Nícolas F. R. A. Prado Committed by Matthias Brugger
Browse files

arm64: dts: mediatek: asurada: Add ChromeOS EC 



Add support for the ChromeOS Embedded Controller present on the Asurada
platform. It is connected through the SPI1 bus and offers several
functionalities: base detection, PWM controller, I2C tunneling,
regulators, Type-C connector management, keyboard and Smart Battery
Metrics (SBS).

Signed-off-by: default avatarNícolas F. R. A. Prado <nfraprado@collabora.com>
Reviewed-by: default avatarAngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Tested-by: default avatarChen-Yu Tsai <wenst@chromium.org>
Link: https://lore.kernel.org/r/20220629155956.1138955-8-nfraprado@collabora.com


Signed-off-by: default avatarMatthias Brugger <matthias.bgg@gmail.com>
parent 23e0fff3

arch/arm64/boot/dts/mediatek/mt8192-asurada.dtsi

+79 −0
Original line number Diff line number Diff line
@@ -353,6 +353,14 @@ &pio { 
			  "AUD_DAT_MISO0",

			  "AUD_DAT_MISO1";



	cros_ec_int: cros-ec-irq-default-pins {

		pins-ec-ap-int-odl {

			pinmux = <PINMUX_GPIO5__FUNC_GPIO5>;

			input-enable;

			bias-pull-up;

		};

	};



	i2c0_pins: i2c0-default-pins {

		pins-bus {

			pinmux = <PINMUX_GPIO204__FUNC_SCL0>,
@@ -428,6 +436,74 @@ &spi1 { 
	mediatek,pad-select = <0>;

	pinctrl-names = "default";

	pinctrl-0 = <&spi1_pins>;



	cros_ec: ec@0 {

		compatible = "google,cros-ec-spi";

		reg = <0>;

		interrupts-extended = <&pio 5 IRQ_TYPE_LEVEL_LOW>;

		spi-max-frequency = <3000000>;

		pinctrl-names = "default";

		pinctrl-0 = <&cros_ec_int>;



		#address-cells = <1>;

		#size-cells = <0>;



		base_detection: cbas {

			compatible = "google,cros-cbas";

		};



		cros_ec_pwm: pwm {

			compatible = "google,cros-ec-pwm";

			#pwm-cells = <1>;



			status = "disabled";

		};



		i2c_tunnel: i2c-tunnel {

			compatible = "google,cros-ec-i2c-tunnel";

			google,remote-bus = <0>;

			#address-cells = <1>;

			#size-cells = <0>;

		};



		mt6360_ldo3_reg: regulator@0 {

			compatible = "google,cros-ec-regulator";

			reg = <0>;

			regulator-min-microvolt = <1800000>;

			regulator-max-microvolt = <3300000>;

		};



		mt6360_ldo5_reg: regulator@1 {

			compatible = "google,cros-ec-regulator";

			reg = <1>;

			regulator-min-microvolt = <3300000>;

			regulator-max-microvolt = <3300000>;

		};



		typec {

			compatible = "google,cros-ec-typec";

			#address-cells = <1>;

			#size-cells = <0>;



			usb_c0: connector@0 {

				compatible = "usb-c-connector";

				reg = <0>;

				label = "left";

				power-role = "dual";

				data-role = "host";

				try-power-role = "source";

			};



			usb_c1: connector@1 {

				compatible = "usb-c-connector";

				reg = <1>;

				label = "right";

				power-role = "dual";

				data-role = "host";

				try-power-role = "source";

			};

		};

	};

};



&spi5 {
@@ -442,3 +518,6 @@ &spi5 { 
&uart0 {

	status = "okay";

};



#include <arm/cros-ec-keyboard.dtsi>

#include <arm/cros-ec-sbs.dtsi>