arm: dts: imx8mm-cl-iot-gate: add Compulab's ied overlays
add the following overlays:
- IED extension board
- CAN/TPM/ADC extension board on IED board.
Signed-off-by: Uri Mashiach <uri.mashiach@compulab.co.il>
Signed-off-by: Ying-Chun Liu (PaulLiu) <paul.liu@linaro.org>
Cc: uboot-imx <uboot-imx@nxp.com>
diff --git a/arch/arm/dts/imx8mm-cl-iot-gate-ied-adc1.dts b/arch/arm/dts/imx8mm-cl-iot-gate-ied-adc1.dts
new file mode 100644
index 0000000..bb0f848
--- /dev/null
+++ b/arch/arm/dts/imx8mm-cl-iot-gate-ied-adc1.dts
@@ -0,0 +1,30 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Copyright 2021 Linaro
+ */
+
+/dts-v1/;
+/plugin/;
+
+&{/} {
+ vref_adc: regulator-vref-adc {
+ compatible = "regulator-fixed";
+ regulator-name = "vref_adc";
+ regulator-min-microvolt = <2400000>;
+ regulator-max-microvolt = <2400000>;
+ regulator-always-on;
+ };
+};
+
+&ecspi3 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ adc1: adc@0 {
+ compatible = "maxim,max11108";
+ reg = <0>;
+ vref-supply = <&vref_adc>;
+ spi-max-frequency = <20000000>;
+ status = "okay";
+ };
+};