tests: drivers: gpio: enable GPIO support for FLPR core

Add corresponding test overlays so that the GPIO
tests run correctly under Twister for the FLPR core.

Signed-off-by: Paweł Pelikan <pawel.pelikan@nordicsemi.no>

Author: ppelikan-nordic

tests/drivers/gpio/gpio_event/boards/nrf54h20dk_nrf54h20_cpuflpr.overlay

@@ -0,0 +1,21 @@
+/*
+ * Copyright (c) 2025 Nordic Semiconductor ASA
+ *
+ * SPDX-License-Identifier: LicenseRef-Nordic-5-Clause
+ */
+
+/ {
+	/* Test requirements:
+	 * out-gpios[0] wire connected with in-gpios[0],
+	 * etc.
+	 * Output-input GPIO pair must have identical active level flag.
+	 */
+	zephyr,user {
+		out-gpios = <&gpio0 6 GPIO_ACTIVE_HIGH>;
+		in-gpios = <&gpio0 7 GPIO_ACTIVE_HIGH>;
+	};
+};
+
+&cpuflpr_code_partition {
+	reg = <0xf4000 DT_SIZE_K(64)>;
+};

tests/drivers/gpio/gpio_event/testcase.yaml

@@ -14,6 +14,7 @@ tests:
       - nrf5340dk/nrf5340/cpuapp
       - nrf5340dk/nrf5340/cpunet
       - nrf54h20dk/nrf54h20/cpuapp
+      - nrf54h20dk/nrf54h20/cpuflpr
       - nrf54l15dk/nrf54l15/cpuapp
       - nrf54lm20dk/nrf54lm20a/cpuapp
       - nrf54lm20dk/nrf54lm20b/cpuapp

tests/drivers/gpio/gpio_more_loops/boards/nrf54h20dk_nrf54h20_cpuflpr.overlay

@@ -0,0 +1,28 @@
+/*
+ * Copyright (c) 2025 Nordic Semiconductor ASA
+ *
+ * SPDX-License-Identifier: LicenseRef-Nordic-5-Clause
+ */
+
+/ {
+	/* Test requirements:
+	 * out-gpios[0] wire connected with in-gpios[0],
+	 * etc.
+	 * Output-input GPIO pair must have identical active level flag.
+	 */
+	test_gpios {
+		compatible = "gpio-leds";
+
+		out_gpios: out_gpios {
+			gpios = <&gpio0 6 GPIO_ACTIVE_HIGH>;
+		};
+
+		in_gpios: in_gpios {
+			gpios = <&gpio0 7 GPIO_ACTIVE_HIGH>;
+		};
+	};
+};
+
+&cpuflpr_code_partition {
+	reg = <0xf4000 DT_SIZE_K(64)>;
+};

tests/drivers/gpio/gpio_more_loops/testcase.yaml

@@ -16,6 +16,7 @@ tests:
       - nrf5340dk/nrf5340/cpunet
       - nrf54h20dk/nrf54h20/cpuapp
       - nrf54h20dk/nrf54h20/cpuppr
+      - nrf54h20dk/nrf54h20/cpuflpr
       - nrf54l15dk/nrf54l15/cpuapp
       - nrf54l15dk/nrf54l15/cpuapp/ns
       - nrf54l15dk/nrf54l15/cpuflpr

tests/drivers/gpio/gpio_nfct/boards/nrf54h20dk_nrf54h20_cpuflpr.overlay

@@ -0,0 +1,39 @@
+/*
+ * Copyright (c) 2025 Nordic Semiconductor ASA
+ *
+ * SPDX-License-Identifier: LicenseRef-Nordic-5-Clause
+ */
+
+/ {
+	/* Test requirements:
+	 * NFC antenna connected to the DK.
+	 */
+	test_gpios {
+		compatible = "gpio-leds";
+
+		out_gpios: out_gpios {
+			gpios = <&gpio2 10 GPIO_ACTIVE_HIGH>;
+		};
+
+		in_gpios: in_gpios {
+			gpios = <&gpio2 11 GPIO_ACTIVE_HIGH>;
+		};
+	};
+};
+
+&cpuflpr_code_partition {
+	reg = <0xf4000 DT_SIZE_K(64)>;
+};
+
+&nfct {
+	status = "disabled";
+	nfct-pins-as-gpios;
+};
+
+&gpiote130 {
+	status = "okay";
+};
+
+&gpio2 {
+	status = "okay";
+};

tests/drivers/gpio/gpio_nfct/testcase.yaml

@@ -16,6 +16,7 @@ tests:
       - nrf54h20dk/nrf54h20/cpuapp
       - nrf54h20dk/nrf54h20/cpurad
       - nrf54h20dk/nrf54h20/cpuppr
+      - nrf54h20dk/nrf54h20/cpuflpr
       - nrf54l15dk/nrf54l15/cpuapp
       - nrf54lm20dk/nrf54lm20a/cpuapp
       - nrf54lm20dk/nrf54lm20b/cpuapp

tests/drivers/gpio/hpf_gpio_basic_api/boards/nrf54h20dk_nrf54h20_cpuflpr_xip.overlay

@@ -0,0 +1,13 @@
+/* SPDX-License-Identifier: LicenseRef-Nordic-5-Clause */
+
+/ {
+	resources {
+		compatible = "test-hpf-gpio";
+		out-gpios = <&gpio0 6 0>;
+		in-gpios = <&gpio0 7 0>;
+	};
+};
+
+&cpuflpr_code_partition {
+	reg = <0xf4000 DT_SIZE_K(64)>;
+};

tests/drivers/gpio/hpf_gpio_basic_api/testcase.yaml

@@ -8,6 +8,7 @@ common:
   harness_config:
     fixture: gpio_loopback
   platform_allow:
+    - nrf54h20dk/nrf54h20/cpuflpr/xip
     - nrf54l15dk/nrf54l15/cpuapp
     - nrf54lm20dk/nrf54lm20a/cpuapp
   integration_platforms: