tests: drivers: gpio: gpio_basic_api: Device runtime pm support for gpio basic api

drivers/gpio/gpio_silabs_siwx91x.c

@@ -207,6 +207,29 @@ static int gpio_siwx91x_pm_action(const struct device *dev, enum pm_device_actio
 	return 0;
 }
 
+
+static int gpio_siwx91x_port_pm_action(const struct device *dev, enum pm_device_action action)
+{
+	const struct gpio_siwx91x_port_config *port_cfg = dev->config;
+	const struct device *parent = port_cfg->parent;
+
+	switch (action) {
+	case PM_DEVICE_ACTION_TURN_ON:
+		break;
+	case PM_DEVICE_ACTION_TURN_OFF:
+		break;
+	case PM_DEVICE_ACTION_RESUME:
+		pm_device_runtime_get(parent);
+		break;
+	case PM_DEVICE_ACTION_SUSPEND:
+		pm_device_runtime_put(parent);
+		break;
+	default:
+		return -ENOTSUP;
+	}
+	return 0;
+}
+
 static int gpio_siwx91x_port_get(const struct device *port, gpio_port_value_t *value)
 {
 	const struct gpio_siwx91x_port_config *port_cfg = port->config;
@@ -378,7 +401,7 @@ static inline int gpio_siwx91x_init_port(const struct device *port)
 	__ASSERT(port_cfg->port < cfg->port_count, "Too many ports");
 	data->ports[port_cfg->port] = port;
 
-	return 0;
+	return pm_device_driver_init(port, gpio_siwx91x_port_pm_action);
 }
 
 static void gpio_siwx91x_isr(const struct device *parent)
@@ -449,10 +472,10 @@ static DEVICE_API(gpio, gpio_siwx91x_api) = {
 		.pin_config_info = pin_config_info_##n,                                            \
 		.total_pin_cnt = __builtin_popcount(GPIO_PORT_PIN_MASK_FROM_DT_NODE(n)),           \
 	};                                                                                         \
-                                                                                                   \
-	DEVICE_DT_DEFINE(n, gpio_siwx91x_init_port, NULL, &gpio_siwx91x_port_data##n,              \
-			 &gpio_siwx91x_port_config##n, PRE_KERNEL_1, CONFIG_GPIO_INIT_PRIORITY,    \
-			 &gpio_siwx91x_api);
+	PM_DEVICE_DT_DEFINE(n, gpio_siwx91x_port_pm_action);                                       \
+	DEVICE_DT_DEFINE(n, gpio_siwx91x_init_port, PM_DEVICE_DT_GET(n),                           \
+			 &gpio_siwx91x_port_data##n, &gpio_siwx91x_port_config##n, PRE_KERNEL_1,   \
+			 CONFIG_GPIO_INIT_PRIORITY, &gpio_siwx91x_api);
 
 #define CONFIGURE_SHARED_INTERRUPT(node_id, prop, idx)                                             \
 	IRQ_CONNECT(DT_IRQ_BY_IDX(node_id, idx, irq), DT_IRQ_BY_IDX(node_id, idx, priority),       \

dts/arm/silabs/siwg917.dtsi

@@ -205,6 +205,7 @@
 				ngpios = <16>;
 				gpio-reserved-ranges = <0 6>;
 				silabs,pads = [ff ff ff ff ff ff 01 02 03 04 05 06 07 ff ff 08];
+				zephyr,pm-device-runtime-auto;
 				status = "okay";
 			};
 
@@ -215,6 +216,7 @@
 				#gpio-cells = <2>;
 				ngpios = <16>;
 				silabs,pads = [ff ff ff ff ff ff ff ff ff 00 00 00 00 00 00 09];
+				zephyr,pm-device-runtime-auto;
 				status = "okay";
 			};
 
@@ -225,6 +227,7 @@
 				#gpio-cells = <2>;
 				ngpios = <16>;
 				silabs,pads = [09 09 09 ff ff ff ff ff ff ff ff ff ff ff 0a 0b];
+				zephyr,pm-device-runtime-auto;
 				status = "okay";
 			};
 
@@ -235,6 +238,7 @@
 				#gpio-cells = <2>;
 				ngpios = <10>;
 				silabs,pads = [0c 0d 0e 0f 10 11 12 13 14 15 ff ff ff ff ff ff];
+				zephyr,pm-device-runtime-auto;
 				status = "okay";
 			};
 		};
@@ -259,6 +263,7 @@
 				ngpios = <12>;
 				gpio-reserved-ranges = <3 1>;
 				silabs,pads = [16 17 18 19 1a 1b 1c 1d 1e 1f 20 21 ff ff ff ff];
+				zephyr,pm-device-runtime-auto;
 				status = "okay";
 			};
 		};

tests/drivers/gpio/gpio_basic_api/src/main.c

@@ -5,6 +5,7 @@
  * SPDX-License-Identifier: Apache-2.0
  */
 
+#include <zephyr/pm/device_runtime.h>
 #include "test_gpio.h"
 
 /* Grotesque hack for pinmux boards */
@@ -77,21 +78,33 @@ static void board_setup(void)
 static void *gpio_basic_setup(void)
 {
 	board_setup();
-
+	(void)pm_device_runtime_get(DEVICE_DT_GET(DEV));
+#ifdef CONFIG_UART_CONSOLE
+	(void)pm_device_runtime_get(DEVICE_DT_GET(DT_CHOSEN(zephyr_console)));
+#endif
 	return NULL;
 }
 
+void gpio_basic_teardown(void *args)
+{
+	(void)args;
+	(void)pm_device_runtime_put(DEVICE_DT_GET(DEV));
+#ifdef CONFIG_UART_CONSOLE
+	(void)pm_device_runtime_put(DEVICE_DT_GET(DT_CHOSEN(zephyr_console)));
+#endif
+}
+
 /* Test GPIO port configuration */
-ZTEST_SUITE(gpio_port, NULL, gpio_basic_setup, NULL, NULL, NULL);
+ZTEST_SUITE(gpio_port, NULL, gpio_basic_setup, NULL, NULL, gpio_basic_teardown);
 
 /* Test GPIO callback management */
-ZTEST_SUITE(gpio_port_cb_mgmt, NULL, gpio_basic_setup, NULL, NULL, NULL);
+ZTEST_SUITE(gpio_port_cb_mgmt, NULL, gpio_basic_setup, NULL, NULL, gpio_basic_teardown);
 
 /* Test GPIO callbacks */
-ZTEST_SUITE(gpio_port_cb_vari, NULL, gpio_basic_setup, NULL, NULL, NULL);
+ZTEST_SUITE(gpio_port_cb_vari, NULL, gpio_basic_setup, NULL, NULL, gpio_basic_teardown);
 
 /* Test GPIO port configuration influence on callbacks. Want to run just
  * after flash, hence the name starting in 'a'
  */
 ZTEST_SUITE(after_flash_gpio_config_trigger, NULL, gpio_basic_setup, NULL, NULL,
-	    NULL);
+	    gpio_basic_teardown);

tests/drivers/gpio/gpio_basic_api/testcase.yaml

@@ -142,3 +142,10 @@ tests:
     extra_args: "DTC_OVERLAY_FILE=boards/frdm_rw612_hsgpio.overlay"
     harness_config:
       fixture: hsgpio_loopback
+  drivers.gpio.device_runtime_pm:
+    platform_allow:
+      - siwx917_rb4338a
+    extra_configs:
+      - CONFIG_PM=y
+      - CONFIG_PM_DEVICE=y
+      - CONFIG_ZTEST_NO_YIELD=n