boards: mr_canhubk3: enable NXP S32 EMIOS PWM

In this board, there are eight PWM channels from
EMIOS 0 CH0 --> EMIOS 0 CH7 that can be used to
generate PWM pulse to outside of the board.

Moreover, there are three RGB leds that can use
PWM pins for blinking, faded leds

Signed-off-by: Dat Nguyen Duy <dat.nguyenduy@nxp.com>

boards/arm/mr_canhubk3/doc/index.rst

@@ -56,6 +56,7 @@ ADC SAR       on-chip     adc
 LPSPI         on-chip     spi
 WDT           FS26 SBC    watchdog
 EMAC          on-chip     ethernet
+eMIOS         on-chip     pwm
 ============  ==========  ================================
 
 The default configuration can be found in the Kconfig file

boards/arm/mr_canhubk3/mr_canhubk3-pinctrl.dtsi

@@ -267,6 +267,24 @@
 			pinmux = <PTB5_EMAC_MII_RMII_TXD0>,
 				<PTB4_EMAC_MII_RMII_TXD1>,
 				<PTE9_EMAC_MII_RMII_TX_EN>;
+		};
+	};
+
+	emios0_default: emios0_default {
+		group1 {
+			pinmux = <PTB12_EMIOS_0_CH0_X_O>, <PTB13_EMIOS_0_CH1_G_O>,
+				<PTB14_EMIOS_0_CH2_G_O>, <PTB15_EMIOS_0_CH3_G_O>,
+				<PTB16_EMIOS_0_CH4_G_O>, <PTB17_EMIOS_0_CH5_G_O>,
+				<PTA17_EMIOS_0_CH6_G_O>, <PTE7_EMIOS_0_CH7_G_O>,
+				<PTE14_EMIOS_0_CH19_Y_O>;
+			output-enable;
+		};
+	};
+
+	emios1_default: emios1_default {
+		group1 {
+			pinmux = <PTA27_EMIOS_1_CH10_H_O>,
+					<PTE12_EMIOS_1_CH5_H_O>;
 			output-enable;
 		};
 	};

boards/arm/mr_canhubk3/mr_canhubk3.dts

@@ -9,6 +9,7 @@
 #include <dt-bindings/gpio/gpio.h>
 #include <zephyr/dt-bindings/input/input-event-codes.h>
 #include <freq.h>
+#include <dt-bindings/pwm/pwm.h>
 #include "mr_canhubk3-pinctrl.dtsi"
 
 / {
@@ -34,6 +35,12 @@
 		sw0 = &user_button_1;
 		sw1 = &user_button_2;
 		watchdog0 = &fs26_wdt;
+		/* For pwm test suites */
+		pwm-0 = &emios0_pwm;
+		red-pwm-led = &user_led1_red_pwm;
+		green-pwm-led = &user_led1_green_pwm;
+		blue-pwm-led = &user_led1_blue_pwm;
+		pwm-led0 = &user_led1_blue_pwm;
 	};
 
 	leds {
@@ -52,6 +59,23 @@
 		};
 	};
 
+	/* gpio-leds and pwm-leds are the same RGB LED and cannot be used at the same time. */
+	pwmleds {
+		compatible = "pwm-leds";
+
+		user_led1_blue_pwm: user_led1_blue {
+			pwms = <&emios1_pwm 5 PWM_MSEC(20)>;
+		};
+
+		user_led1_green_pwm: user_led1_green {
+			pwms = <&emios1_pwm 10 PWM_MSEC(20)>;
+		};
+
+		user_led1_red_pwm: user_led1_red {
+			pwms = <&emios0_pwm 19 PWM_MSEC(20)>;
+		};
+	};
+
 	gpio_keys {
 		compatible = "gpio-keys";
 		user_button_1: button_0 {
@@ -378,3 +402,155 @@
 		full-duplex;
 	};
 };
+
+&emios0 {
+	clock-divider = <200>;
+	status = "okay";
+
+	master_bus {
+		/*
+		 * Timebase for PWM led, setting clock 50KHz for internal counter,
+		 * default period is 1000 cycles <-> 20ms.
+		 */
+		emios0_bus_a {
+			mode = "MCB_UP_COUNTER";
+			prescaler = <16>;
+			period = <1000>;
+			status = "okay";
+		};
+	};
+
+	emios0_pwm: pwm {
+		pinctrl-0 = <&emios0_default>;
+		pinctrl-names = "default";
+		status = "okay";
+
+		/* Default clock for internal counter for PWM channel 0-7 is 100Khz */
+		pwm_0 {
+			channel = <0>;
+			pwm-mode = "MODE_OPWFMB";
+			period = <65535>;
+			duty-cycle = <0>;
+			prescaler = <8>;
+			polarity = "ACTIVE_HIGH";
+		};
+
+		pwm_1 {
+			channel = <1>;
+			pwm-mode = "MODE_OPWFMB";
+			period = <65535>;
+			duty-cycle = <0>;
+			prescaler = <8>;
+			polarity = "ACTIVE_HIGH";
+		};
+
+		pwm_2 {
+			channel = <2>;
+			pwm-mode = "MODE_OPWFMB";
+			period = <65535>;
+			duty-cycle = <0>;
+			prescaler = <8>;
+			polarity = "ACTIVE_HIGH";
+		};
+
+		pwm_3 {
+			channel = <3>;
+			pwm-mode = "MODE_OPWFMB";
+			period = <65535>;
+			duty-cycle = <0>;
+			prescaler = <8>;
+			polarity = "ACTIVE_HIGH";
+		};
+
+		pwm_4 {
+			channel = <4>;
+			pwm-mode = "MODE_OPWFMB";
+			period = <65535>;
+			duty-cycle = <0>;
+			prescaler = <8>;
+			polarity = "ACTIVE_HIGH";
+		};
+
+		pwm_5 {
+			channel = <5>;
+			pwm-mode = "MODE_OPWFMB";
+			period = <65535>;
+			duty-cycle = <0>;
+			prescaler = <8>;
+			polarity = "ACTIVE_HIGH";
+		};
+
+		pwm_6 {
+			channel = <6>;
+			pwm-mode = "MODE_OPWFMB";
+			period = <65535>;
+			duty-cycle = <0>;
+			prescaler = <8>;
+			polarity = "ACTIVE_HIGH";
+		};
+
+		pwm_7 {
+			channel = <7>;
+			pwm-mode = "MODE_OPWFMB";
+			period = <65535>;
+			duty-cycle = <0>;
+			prescaler = <8>;
+			polarity = "ACTIVE_HIGH";
+		};
+
+		rgb_red {
+			channel = <19>;
+			master-bus = <&emios0_bus_a>;
+			duty-cycle = <0>;
+			pwm-mode = "MODE_OPWMB";
+			polarity = "ACTIVE_LOW";
+		};
+	};
+};
+
+&emios1 {
+	clock-divider = <200>;
+	status = "okay";
+
+	master_bus {
+		/*
+		 * Timebase for PWM led, setting clock 50KHz for internal counter,
+		 * default period is 1000 cycles <-> 20ms.
+		 */
+		emios1_bus_a {
+			prescaler = <16>;
+			mode = "MCB_UP_COUNTER";
+			period = <1000>;
+			status = "okay";
+		};
+
+		emios1_bus_f {
+			prescaler = <16>;
+			mode = "MCB_UP_COUNTER";
+			period = <1000>;
+			status = "okay";
+		};
+	};
+
+	emios1_pwm: pwm {
+		pinctrl-0 = <&emios1_default>;
+		pinctrl-names = "default";
+		status = "okay";
+
+		rgb_green {
+			channel = <10>;
+			master-bus = <&emios1_bus_a>;
+			duty-cycle = <0>;
+			pwm-mode = "MODE_OPWMB";
+			polarity = "ACTIVE_LOW";
+		};
+
+		rgb_blue {
+			channel = <5>;
+			master-bus = <&emios1_bus_f>;
+			duty-cycle = <0>;
+			pwm-mode = "MODE_OPWMB";
+			polarity = "ACTIVE_LOW";
+		};
+	};
+};

boards/arm/mr_canhubk3/mr_canhubk3.yaml

@@ -18,3 +18,4 @@ supported:
   - spi
   - watchdog
   - netif:eth
+  - pwm

samples/drivers/led_pwm/boards/mr_canhubk3.conf

@@ -0,0 +1,6 @@
+# Copyright 2023 NXP
+# SPDX-License-Identifier: Apache-2.0
+
+# Due to gpio-leds and pwm-leds are the same RGB LEDs so should not be used
+# at the same time, need to disable this config when using pwm-leds.
+CONFIG_LED_GPIO=n

west.yml

@@ -193,7 +193,7 @@ manifest:
       groups:
         - hal
     - name: hal_nxp
-      revision: b0274481021b6343740f1970ef167d65ea67d30b
+      revision: 0ef57e8ee40f02f1dce4b4ad666c55885f941703
       path: modules/hal/nxp
       groups:
         - hal