From eb6b726d9c4e76bc351a75196d6b490486dcb97d Mon Sep 17 00:00:00 2001
From: Neil Chen <cheng.chen_1@nxp.com>
Date: Tue, 10 Dec 2024 10:13:58 +0800
Subject: [PATCH] boards: frdm_mcxc444: Add adc support

Support adc for NXP frdm_mcxc444 board

Signed-off-by: Neil Chen <cheng.chen_1@nxp.com>
---
 boards/nxp/frdm_mcxc444/doc/index.rst             | 2 ++
 boards/nxp/frdm_mcxc444/frdm_mcxc444-pinctrl.dtsi | 8 ++++++++
 boards/nxp/frdm_mcxc444/frdm_mcxc444.dts          | 6 ++++++
 boards/nxp/frdm_mcxc444/frdm_mcxc444.yaml         | 1 +
 4 files changed, 17 insertions(+)

diff --git a/boards/nxp/frdm_mcxc444/doc/index.rst b/boards/nxp/frdm_mcxc444/doc/index.rst
index 601bc9877a7..891fdce5c86 100644
--- a/boards/nxp/frdm_mcxc444/doc/index.rst
+++ b/boards/nxp/frdm_mcxc444/doc/index.rst
@@ -55,6 +55,8 @@ The ``frdm_mcxc444`` board target supports the following hardware features:
 +-----------+------------+-------------------------------------+
 | FLASH     | on-chip    | soc flash                           |
 +-----------+------------+-------------------------------------+
+| ADC       | on-chip    | adc                                 |
++-----------+------------+-------------------------------------+
 | I2C       | on-chip    | i2c                                 |
 +-----------+------------+-------------------------------------+
 | LPTMR     | on-chip    | counter                             |
diff --git a/boards/nxp/frdm_mcxc444/frdm_mcxc444-pinctrl.dtsi b/boards/nxp/frdm_mcxc444/frdm_mcxc444-pinctrl.dtsi
index 36b40c40abc..328ce758ba4 100644
--- a/boards/nxp/frdm_mcxc444/frdm_mcxc444-pinctrl.dtsi
+++ b/boards/nxp/frdm_mcxc444/frdm_mcxc444-pinctrl.dtsi
@@ -8,6 +8,14 @@
 #include <nxp/mcx/MCXC444VLH-pinctrl.h>
 
 &pinctrl {
+	pinmux_adc0: pinmux_adc0 {
+		group0 {
+			pinmux = <ADC0_SE0_PTE20>,
+				 <ADC0_SE3_PTE22>;
+			drive-strength = "low";
+			slew-rate = "slow";
+		};
+	};
 	pinmux_i2c0: pinmux_i2c0 {
 		group0 {
 			pinmux = <I2C0_SCL_PTE24>,
diff --git a/boards/nxp/frdm_mcxc444/frdm_mcxc444.dts b/boards/nxp/frdm_mcxc444/frdm_mcxc444.dts
index df6c55e5721..3fc85d96075 100644
--- a/boards/nxp/frdm_mcxc444/frdm_mcxc444.dts
+++ b/boards/nxp/frdm_mcxc444/frdm_mcxc444.dts
@@ -119,6 +119,12 @@
 	status = "okay";
 };
 
+&adc0 {
+	status = "okay";
+	pinctrl-0 = <&pinmux_adc0>;
+	pinctrl-names = "default";
+};
+
 i2c0: &i2c0 {
 	status = "okay";
 	pinctrl-0 = <&pinmux_i2c0>;
diff --git a/boards/nxp/frdm_mcxc444/frdm_mcxc444.yaml b/boards/nxp/frdm_mcxc444/frdm_mcxc444.yaml
index a7aabf28a35..ed9be199401 100644
--- a/boards/nxp/frdm_mcxc444/frdm_mcxc444.yaml
+++ b/boards/nxp/frdm_mcxc444/frdm_mcxc444.yaml
@@ -15,6 +15,7 @@ toolchain:
   - gnuarmemb
   - xtools
 supported:
+  - adc
   - counter
   - flash
   - gpio