boards: s32z2xxdc2: add support PWM eMIOS

Add support PWM eMIOS for s32z2xxdc2 board. There is no LED
on-board dedicated for PWM, so no sample is supported. Only
enabling some pwm tests

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

boards/nxp/s32z2xxdc2/doc/index.rst

@@ -60,6 +60,8 @@ The boards support the following hardware features:
 +-----------+------------+-------------------------------------+
 | DSPI      | on-chip    | spi                                 |
 +-----------+------------+-------------------------------------+
+| eMIOS     | on-chip    | pwm                                 |
++-----------+------------+-------------------------------------+
 
 Other hardware features are not currently supported by the port.
 

boards/nxp/s32z2xxdc2/s32z2xxdc2_s32z270_rtu0.yaml

@@ -19,4 +19,5 @@ supported:
   - adc
   - i2c
   - dma
+  - pwm
 vendor: nxp

boards/nxp/s32z2xxdc2/s32z2xxdc2_s32z270_rtu0_D.yaml

@@ -19,4 +19,5 @@ supported:
   - adc
   - i2c
   - dma
+  - pwm
 vendor: nxp

boards/nxp/s32z2xxdc2/s32z2xxdc2_s32z270_rtu1.yaml

@@ -19,4 +19,5 @@ supported:
   - adc
   - i2c
   - dma
+  - pwm
 vendor: nxp

boards/nxp/s32z2xxdc2/s32z2xxdc2_s32z270_rtu1_D.yaml

@@ -19,4 +19,5 @@ supported:
   - adc
   - i2c
   - dma
+  - pwm
 vendor: nxp

tests/drivers/pwm/pwm_api/boards/s32z2xxdc2_s32z270_rtu0.overlay

@@ -0,0 +1,39 @@
+/*
+ * Copyright 2024 NXP
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#include <nxp/s32/S32Z27-BGA594-pinctrl.h>
+
+/ {
+	aliases {
+		pwm-0 = &emios0_pwm;
+	};
+};
+
+&pinctrl {
+	emios0_default: emios0_default {
+		group0 {
+			pinmux = <PK0_EMIOS_0_CH24_O>;
+			output-enable;
+		};
+	};
+};
+
+&emios0 {
+	clock-divider = <133>;
+	status = "okay";
+
+	emios0_pwm: pwm {
+		pinctrl-0 = <&emios0_default>;
+		pinctrl-names = "default";
+		status = "okay";
+
+		pwm_24 {
+			channel = <24>;
+			prescaler = <16>;
+			pwm-mode = "OPWFMB";
+		};
+	};
+};

tests/drivers/pwm/pwm_api/boards/s32z2xxdc2_s32z270_rtu1.overlay

@@ -0,0 +1,39 @@
+/*
+ * Copyright 2024 NXP
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#include <nxp/s32/S32Z27-BGA594-pinctrl.h>
+
+/ {
+	aliases {
+		pwm-0 = &emios0_pwm;
+	};
+};
+
+&pinctrl {
+	emios0_default: emios0_default {
+		group0 {
+			pinmux = <PK0_EMIOS_0_CH24_O>;
+			output-enable;
+		};
+	};
+};
+
+&emios0 {
+	clock-divider = <133>;
+	status = "okay";
+
+	emios0_pwm: pwm {
+		pinctrl-0 = <&emios0_default>;
+		pinctrl-names = "default";
+		status = "okay";
+
+		pwm_24 {
+			channel = <24>;
+			prescaler = <16>;
+			pwm-mode = "OPWFMB";
+		};
+	};
+};

tests/drivers/pwm/pwm_loopback/boards/s32z2xxdc2_s32z270_rtu0.overlay

@@ -0,0 +1,51 @@
+/*
+ * Copyright 2024 NXP
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#include <zephyr/dt-bindings/pwm/pwm.h>
+
+/ {
+	pwm_loopback_0 {
+		compatible = "test-pwm-loopback";
+		pwms = <&emios0_pwm 24 0 PWM_POLARITY_NORMAL>,
+			<&emios0_pwm 25 0 PWM_POLARITY_NORMAL>;
+	};
+};
+
+&pinctrl {
+	emios0_default: emios0_default {
+		group0 {
+			pinmux = <PK0_EMIOS_0_CH24_O>;
+			output-enable;
+		};
+		group1 {
+			pinmux = <PJ15_EMIOS_0_CH25_I>;
+			input-enable;
+		};
+	};
+};
+
+&emios0 {
+	clock-divider = <200>;
+	status = "okay";
+
+	emios0_pwm: pwm {
+		pinctrl-0 = <&emios0_default>;
+		pinctrl-names = "default";
+		status = "okay";
+
+		pwm_24 {
+			channel = <24>;
+			prescaler = <16>;
+			pwm-mode = "OPWFMB";
+		};
+
+		pwm_25 {
+			channel = <25>;
+			pwm-mode = "SAIC";
+			prescaler = <16>;
+		};
+	};
+};

tests/drivers/pwm/pwm_loopback/boards/s32z2xxdc2_s32z270_rtu1.overlay

@@ -0,0 +1,51 @@
+/*
+ * Copyright 2024 NXP
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#include <zephyr/dt-bindings/pwm/pwm.h>
+
+/ {
+	pwm_loopback_0 {
+		compatible = "test-pwm-loopback";
+		pwms = <&emios0_pwm 24 0 PWM_POLARITY_NORMAL>,
+			<&emios0_pwm 25 0 PWM_POLARITY_NORMAL>;
+	};
+};
+
+&pinctrl {
+	emios0_default: emios0_default {
+		group0 {
+			pinmux = <PK0_EMIOS_0_CH24_O>;
+			output-enable;
+		};
+		group1 {
+			pinmux = <PJ15_EMIOS_0_CH25_I>;
+			input-enable;
+		};
+	};
+};
+
+&emios0 {
+	clock-divider = <200>;
+	status = "okay";
+
+	emios0_pwm: pwm {
+		pinctrl-0 = <&emios0_default>;
+		pinctrl-names = "default";
+		status = "okay";
+
+		pwm_24 {
+			channel = <24>;
+			prescaler = <16>;
+			pwm-mode = "OPWFMB";
+		};
+
+		pwm_25 {
+			channel = <25>;
+			pwm-mode = "SAIC";
+			prescaler = <16>;
+		};
+	};
+};