[PATCH v2 02/10] arm64: dts: colibri-imx8x: Add analog inputs

[Francesco Dolcini <francesco@dolcini.it>]

From: João Paulo Gonçalves <joao.goncalves@toradex.com>

Add adc nodes for analog inputs support for all Colibri-iMX8X carrier
boards.

Signed-off-by: João Paulo Gonçalves <joao.goncalves@toradex.com>
Signed-off-by: Francesco Dolcini <francesco.dolcini@toradex.com>
---
v2: no changes
---
 .../boot/dts/freescale/imx8x-colibri-aster.dtsi    |  5 +++++
 .../boot/dts/freescale/imx8x-colibri-eval-v3.dtsi  |  5 +++++
 .../boot/dts/freescale/imx8x-colibri-iris.dtsi     |  5 +++++
 arch/arm64/boot/dts/freescale/imx8x-colibri.dtsi   | 14 +++++++++++++-
 4 files changed, 28 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/freescale/imx8x-colibri-aster.dtsi b/arch/arm64/boot/dts/freescale/imx8x-colibri-aster.dtsi
index c02dfdd75b60..503aa5a90503 100644
--- a/arch/arm64/boot/dts/freescale/imx8x-colibri-aster.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8x-colibri-aster.dtsi
@@ -3,6 +3,11 @@
  * Copyright 2018-2021 Toradex
  */
 
+/* Colibri Analogue Inputs */
+&adc0 {
+	status = "okay";
+};
+
 &colibri_gpio_keys {
 	status = "okay";
 };
diff --git a/arch/arm64/boot/dts/freescale/imx8x-colibri-eval-v3.dtsi b/arch/arm64/boot/dts/freescale/imx8x-colibri-eval-v3.dtsi
index 91de84772e1c..a2b2a0865666 100644
--- a/arch/arm64/boot/dts/freescale/imx8x-colibri-eval-v3.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8x-colibri-eval-v3.dtsi
@@ -19,6 +19,11 @@ clk16m: clock-16mhz {
 	};
 };
 
+/* Colibri Analogue Inputs */
+&adc0 {
+	status = "okay";
+};
+
 &colibri_gpio_keys {
 	status = "okay";
 };
diff --git a/arch/arm64/boot/dts/freescale/imx8x-colibri-iris.dtsi b/arch/arm64/boot/dts/freescale/imx8x-colibri-iris.dtsi
index a6b013cc6929..6d9d54d4e549 100644
--- a/arch/arm64/boot/dts/freescale/imx8x-colibri-iris.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8x-colibri-iris.dtsi
@@ -17,6 +17,11 @@ reg_3v3: regulator-3v3 {
 	};
 };
 
+/* Colibri Analogue Inputs */
+&adc0 {
+	status = "okay";
+};
+
 &colibri_gpio_keys {
 	status = "okay";
 };
diff --git a/arch/arm64/boot/dts/freescale/imx8x-colibri.dtsi b/arch/arm64/boot/dts/freescale/imx8x-colibri.dtsi
index 56de45fb05e7..d88f2dd20afa 100644
--- a/arch/arm64/boot/dts/freescale/imx8x-colibri.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8x-colibri.dtsi
@@ -38,6 +38,13 @@ reg_module_3v3: regulator-module-3v3 {
 		regulator-max-microvolt = <3300000>;
 	};
 
+	reg_module_vref_1v8: regulator-module-vref-1v8 {
+		compatible = "regulator-fixed";
+		regulator-max-microvolt = <1800000>;
+		regulator-min-microvolt = <1800000>;
+		regulator-name = "vref-1v8";
+	};
+
 	reg_usbh_vbus: regulator-usbh-vbus {
 		compatible = "regulator-fixed";
 		pinctrl-names = "default";
@@ -50,7 +57,12 @@ reg_usbh_vbus: regulator-usbh-vbus {
 	};
 };
 
-/* TODO Analogue Inputs */
+/* Colibri Analogue Inputs */
+&adc0 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_adc0>;
+	vref-supply = <&reg_module_vref_1v8>;
+};
 
 /* TODO Cooling maps for DX */
 
-- 
2.39.2