tests: drivers: pwm: Add support for RZ/G3S-SMARC

Enable PWM driver tests for RZ/G3S

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

Author: Hieu Nguyen

tests/drivers/pwm/pwm_api/boards/rzg3s_smarc_r9a08g045s33gbg_cm33.overlay

@@ -0,0 +1,13 @@
+/*
+ * Copyright (c) 2024 Renesas Electronics Corporation
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+&gpt32e3 {
+	pwm3: pwm {
+		status = "okay";
+		pinctrl-0 = <&gpt3_pins>;
+		pinctrl-names = "default";
+	};
+};

tests/drivers/pwm/pwm_api/src/test_pwm.c

@@ -56,6 +56,9 @@
 #elif DT_HAS_COMPAT_STATUS_OKAY(renesas_ra_pwm)
 #define PWM_DEV_NODE DT_INST(0, renesas_ra_pwm)
 
+#elif DT_HAS_COMPAT_STATUS_OKAY(renesas_rz_gpt_pwm)
+#define PWM_DEV_NODE DT_INST(0, renesas_rz_gpt_pwm)
+
 #else
 #error "Define a PWM device"
 #endif

tests/drivers/pwm/pwm_loopback/boards/rzg3s_smarc_r9a08g045s33gbg_cm33.overlay

@@ -0,0 +1,32 @@
+/*
+ * Copyright (c) 2024 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 = <&pwm3 RZ_PWM_GPT_IO_A 0 PWM_POLARITY_NORMAL>,
+		       <&pwm6 RZ_PWM_GPT_IO_A 0 PWM_POLARITY_NORMAL>;
+	};
+};
+
+&gpt32e3 {
+	pwm3: pwm {
+		status = "okay";
+		pinctrl-0 = <&gpt3_pins>;
+		pinctrl-names = "default";
+	};
+};
+
+&gpt32e6 {
+	pwm6: pwm {
+		status = "okay";
+		pinctrl-0 = <&gpt6_pins>;
+		pinctrl-names = "default";
+	};
+};