tests: drivers: pwm: Add PWM support for Renesas RZ/T2M, N2L, V2L

Add PWM test support for Renesas RZ/T2M-RSK, RZ/N2L-RSK, RZ/V2L-SMARC

Signed-off-by: Hieu Nguyen <[email protected]>
Signed-off-by: Tien Nguyen <[email protected]>

Author: Hieu Nguyen

tests/drivers/pwm/pwm_api/boards/rzn2l_rsk.overlay

@@ -0,0 +1,15 @@
+/*
+ * Copyright (c) 2025 Renesas Electronics Corporation
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+&gpt4 {
+	status = "okay";
+
+	pwm4: pwm {
+		status = "okay";
+		pinctrl-0 = <&gpt4_pins>;
+		pinctrl-names = "default";
+	};
+};

tests/drivers/pwm/pwm_api/boards/rzt2m_rsk_r9a07g075m24gbg_cr520.overlay

@@ -0,0 +1,15 @@
+/*
+ * Copyright (c) 2025 Renesas Electronics Corporation
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+&gpt0 {
+	status = "okay";
+
+	pwm0: pwm {
+		status = "okay";
+		pinctrl-0 = <&gpt0_pins>;
+		pinctrl-names = "default";
+	};
+};

tests/drivers/pwm/pwm_api/boards/rzv2l_smarc_r9a07g054l23gbg_cm33.overlay

@@ -0,0 +1,15 @@
+/*
+ * Copyright (c) 2025 Renesas Electronics Corporation
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+&gpt32e6 {
+	status = "okay";
+
+	pwm6: pwm {
+		status = "okay";
+		pinctrl-0 = <&gpt6_pins>;
+		pinctrl-names = "default";
+	};
+};

tests/drivers/pwm/pwm_loopback/boards/rzn2l_rsk.overlay

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+/*
+ * Copyright (c) 2025 Renesas Electronics Corporation
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#include <zephyr/dt-bindings/pwm/pwm.h>
+#include <zephyr/dt-bindings/pwm/renesas_rz_pwm.h>
+
+/ {
+	pwm_loopback_0 {
+		compatible = "test-pwm-loopback";
+		pwms = <&pwm4 RZ_PWM_GPT_IO_A 0 PWM_POLARITY_NORMAL>,
+		       <&pwm5 RZ_PWM_GPT_IO_B 0 PWM_POLARITY_NORMAL>;
+	};
+};
+
+&gpt4 {
+	status = "okay";
+
+	pwm4: pwm {
+		status = "okay";
+		pinctrl-0 = <&gpt4_pins>;
+		pinctrl-names = "default";
+	};
+};
+
+&gpt5 {
+	status = "okay";
+
+	pwm5: pwm {
+		status = "okay";
+		pinctrl-0 = <&gpt5_pins>;
+		pinctrl-names = "default";
+	};
+};

tests/drivers/pwm/pwm_loopback/boards/rzt2m_rsk_r9a07g075m24gbg_cr520.overlay

@@ -0,0 +1,36 @@
+/*
+ * Copyright (c) 2025 Renesas Electronics Corporation
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#include <zephyr/dt-bindings/pwm/pwm.h>
+#include <zephyr/dt-bindings/pwm/renesas_rz_pwm.h>
+
+/ {
+	pwm_loopback_0 {
+		compatible = "test-pwm-loopback";
+		pwms = <&pwm0 RZ_PWM_GPT_IO_A 0 PWM_POLARITY_NORMAL>,
+		       <&pwm4 RZ_PWM_GPT_IO_A 0 PWM_POLARITY_NORMAL>;
+	};
+};
+
+&gpt0 {
+	status = "okay";
+
+	pwm0: pwm {
+		status = "okay";
+		pinctrl-0 = <&gpt0_pins>;
+		pinctrl-names = "default";
+	};
+};
+
+&gpt4 {
+	status = "okay";
+
+	pwm4: pwm {
+		status = "okay";
+		pinctrl-0 = <&gpt4_pins>;
+		pinctrl-names = "default";
+	};
+};

tests/drivers/pwm/pwm_loopback/boards/rzv2l_smarc_r9a07g054l23gbg_cm33.overlay

@@ -0,0 +1,36 @@
+/*
+ * Copyright (c) 2025 Renesas Electronics Corporation
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#include <zephyr/dt-bindings/pwm/pwm.h>
+#include <zephyr/dt-bindings/pwm/renesas_rz_pwm.h>
+
+/ {
+	pwm_loopback_0 {
+		compatible = "test-pwm-loopback";
+		pwms = <&pwm6 RZ_PWM_GPT_IO_A 0 PWM_POLARITY_NORMAL>,
+		       <&pwm7 RZ_PWM_GPT_IO_A 0 PWM_POLARITY_NORMAL>;
+	};
+};
+
+&gpt32e6 {
+	status = "okay";
+
+	pwm6: pwm {
+		status = "okay";
+		pinctrl-0 = <&gpt6_pins>;
+		pinctrl-names = "default";
+	};
+};
+
+&gpt32e7 {
+	status = "okay";
+
+	pwm7: pwm {
+		status = "okay";
+		pinctrl-0 = <&gpt7_pins>;
+		pinctrl-names = "default";
+	};
+};