From 9f6fdae4306473eeb0da4de2218c197ae8e574b4 Mon Sep 17 00:00:00 2001
From: Neil Chen <cheng.chen_1@nxp.com>
Date: Wed, 4 Dec 2024 11:34:55 +0800
Subject: [PATCH] boards: nxp: frdm_mcxa156: Support pwm for NXP frdm_mcxa156
 board

Support pwm for NXP frdm_mcxa156 board.
Test with tests/drivers/pwm/pwm_api.

Signed-off-by: Neil Chen <cheng.chen_1@nxp.com>
---
 boards/nxp/frdm_mcxa156/doc/index.rst             | 2 ++
 boards/nxp/frdm_mcxa156/frdm_mcxa156-pinctrl.dtsi | 8 ++++++++
 boards/nxp/frdm_mcxa156/frdm_mcxa156.dts          | 7 +++++++
 boards/nxp/frdm_mcxa156/frdm_mcxa156.yaml         | 1 +
 4 files changed, 18 insertions(+)

diff --git a/boards/nxp/frdm_mcxa156/doc/index.rst b/boards/nxp/frdm_mcxa156/doc/index.rst
index 4094a7904a4..75d115fc627 100644
--- a/boards/nxp/frdm_mcxa156/doc/index.rst
+++ b/boards/nxp/frdm_mcxa156/doc/index.rst
@@ -56,6 +56,8 @@ The FRDM-MCXA156 board configuration supports the following hardware features:
 +-----------+------------+-------------------------------------+
 | DAC       | on-chip    | dac                                 |
 +-----------+------------+-------------------------------------+
+| PWM       | on-chip    | pwm                                 |
++-----------+------------+-------------------------------------+
 
 Targets available
 ==================
diff --git a/boards/nxp/frdm_mcxa156/frdm_mcxa156-pinctrl.dtsi b/boards/nxp/frdm_mcxa156/frdm_mcxa156-pinctrl.dtsi
index d99fc81ddb4..73a8a4a79cb 100644
--- a/boards/nxp/frdm_mcxa156/frdm_mcxa156-pinctrl.dtsi
+++ b/boards/nxp/frdm_mcxa156/frdm_mcxa156-pinctrl.dtsi
@@ -23,4 +23,12 @@
 			slew-rate = "fast";
 		};
 	};
+	pinmux_flexpwm0_pwm0: pinmux_flexpwm0_pwm0 {
+		group0 {
+			pinmux = <PWM0_A0_P3_6>,
+				<PWM0_B0_P3_7>;
+			slew-rate = "fast";
+			drive-strength = "low";
+		};
+	};
 };
diff --git a/boards/nxp/frdm_mcxa156/frdm_mcxa156.dts b/boards/nxp/frdm_mcxa156/frdm_mcxa156.dts
index 10b1a9e7dc8..9407ba1a235 100644
--- a/boards/nxp/frdm_mcxa156/frdm_mcxa156.dts
+++ b/boards/nxp/frdm_mcxa156/frdm_mcxa156.dts
@@ -20,6 +20,7 @@
 		led2 = &red_led;
 		sw0 = &user_button_2;
 		sw1 = &user_button_3;
+		pwm-0 = &flexpwm0_pwm0;
 	};
 
 	chosen {
@@ -94,3 +95,9 @@
 	pinctrl-0 = <&pinmux_dac0>;
 	pinctrl-names = "default";
 };
+
+&flexpwm0_pwm0 {
+	status = "okay";
+	pinctrl-0 = <&pinmux_flexpwm0_pwm0>;
+	pinctrl-names = "default";
+};
diff --git a/boards/nxp/frdm_mcxa156/frdm_mcxa156.yaml b/boards/nxp/frdm_mcxa156/frdm_mcxa156.yaml
index e90d80dadd2..abad7e82254 100644
--- a/boards/nxp/frdm_mcxa156/frdm_mcxa156.yaml
+++ b/boards/nxp/frdm_mcxa156/frdm_mcxa156.yaml
@@ -18,4 +18,5 @@ supported:
   - flash
   - gpio
   - dac
+  - pwm
 vendor: nxp