arm64: dts: mediatek: cherry: Wire up the ChromeOS Embedded Controller

Wire up the ChromeOS Embedded Controller on SPI0 and its communication
channel via SCP RPMSG along with all of the offered functionality,
including Keyboard, Smart Battery Metrics (SBS), keyboard backlight,
I2C tunnel, regulators and Type-C connector management.

Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Link: https://lore.kernel.org/r/20220902081156.38526-3-angelogioacchino.delregno@collabora.com
Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>

diff --git a/arch/arm64/boot/dts/mediatek/mt8195-cherry.dtsi b/arch/arm64/boot/dts/mediatek/mt8195-cherry.dtsi
index e83d58d997570c3222969371559d4924370ecc14..73f531f84fa219c000b905e690d5473bb78cb24b 100644 (file)
--- a/arch/arm64/boot/dts/mediatek/mt8195-cherry.dtsi
+++ b/arch/arm64/boot/dts/mediatek/mt8195-cherry.dtsi
@@ -426,6 +426,14 @@
                "AP_SPI_FLASH_MOSI",
                "AP_SPI_FLASH_MISO";
 
+       cros_ec_int: cros-ec-irq-default-pins {
+               pins-ec-ap-int-odl {
+                       pinmux = <PINMUX_GPIO4__FUNC_GPIO4>;
+                       bias-pull-up = <MTK_PUPD_SET_R1R0_01>;
+                       input-enable;
+               };
+       };
+
        i2c0_pins: i2c0-default-pins {
                pins-bus {
                        pinmux = <PINMUX_GPIO8__FUNC_SDA0>,
@@ -670,6 +678,11 @@
        memory-region = <&scp_mem>;
        pinctrl-names = "default";
        pinctrl-0 = <&scp_pins>;
+
+       cros-ec-rpmsg {
+               compatible = "google,cros-ec-rpmsg";
+               mediatek,rpmsg-name = "cros-ec-rpmsg";
+       };
 };
 
 &spi0 {
@@ -678,6 +691,67 @@
        pinctrl-names = "default";
        pinctrl-0 = <&spi0_pins>;
        mediatek,pad-select = <0>;
+
+       cros_ec: ec@0 {
+               #address-cells = <1>;
+               #size-cells = <0>;
+
+               compatible = "google,cros-ec-spi";
+               reg = <0>;
+               interrupts-extended = <&pio 4 IRQ_TYPE_LEVEL_LOW>;
+               pinctrl-names = "default";
+               pinctrl-0 = <&cros_ec_int>;
+               spi-max-frequency = <3000000>;
+
+               keyboard-backlight {
+                       compatible = "google,cros-kbd-led-backlight";
+               };
+
+               i2c_tunnel: i2c-tunnel {
+                       compatible = "google,cros-ec-i2c-tunnel";
+                       google,remote-bus = <0>;
+                       #address-cells = <1>;
+                       #size-cells = <0>;
+               };
+
+               mt_pmic_vmc_ldo_reg: regulator@0 {
+                       compatible = "google,cros-ec-regulator";
+                       reg = <0>;
+                       regulator-name = "mt_pmic_vmc_ldo";
+                       regulator-min-microvolt = <1200000>;
+                       regulator-max-microvolt = <3600000>;
+               };
+
+               mt_pmic_vmch_ldo_reg: regulator@1 {
+                       compatible = "google,cros-ec-regulator";
+                       reg = <1>;
+                       regulator-name = "mt_pmic_vmch_ldo";
+                       regulator-min-microvolt = <2700000>;
+                       regulator-max-microvolt = <3600000>;
+               };
+
+               typec {
+                       compatible = "google,cros-ec-typec";
+                       #address-cells = <1>;
+                       #size-cells = <0>;
+
+                       usb_c0: connector@0 {
+                               compatible = "usb-c-connector";
+                               reg = <0>;
+                               power-role = "dual";
+                               data-role = "host";
+                               try-power-role = "source";
+                       };
+
+                       usb_c1: connector@1 {
+                               compatible = "usb-c-connector";
+                               reg = <1>;
+                               power-role = "dual";
+                               data-role = "host";
+                               try-power-role = "source";
+                       };
+               };
+       };
 };
 
 &u3phy0 {
@@ -729,3 +803,6 @@
        vusb33-supply = <&mt6359_vusb_ldo_reg>;
        vbus-supply = <&usb_vbus>;
 };
+
+#include <arm/cros-ec-keyboard.dtsi>
+#include <arm/cros-ec-sbs.dtsi>