drivers: gpio: esp32c2: Add support

Add gpio support to ESP32C2 and ESP8684

Signed-off-by: Raffael Rostagno <[email protected]>

Author: Raffael Rostagno

drivers/gpio/gpio_esp32.c

@@ -20,7 +20,9 @@
 #include <zephyr/device.h>
 #include <zephyr/drivers/gpio.h>
 #include <zephyr/dt-bindings/gpio/espressif-esp32-gpio.h>
-#if defined(CONFIG_SOC_SERIES_ESP32C3) || defined(CONFIG_SOC_SERIES_ESP32C6)
+#if defined(CONFIG_SOC_SERIES_ESP32C2) || \
+	defined(CONFIG_SOC_SERIES_ESP32C3) || \
+	defined(CONFIG_SOC_SERIES_ESP32C6)
 #include <zephyr/drivers/interrupt_controller/intc_esp32c3.h>
 #else
 #include <zephyr/drivers/interrupt_controller/intc_esp32.h>
@@ -33,7 +35,15 @@
 #include <zephyr/logging/log.h>
 LOG_MODULE_REGISTER(gpio_esp32, CONFIG_LOG_DEFAULT_LEVEL);
 
-#ifdef CONFIG_SOC_SERIES_ESP32C3
+#ifdef CONFIG_SOC_SERIES_ESP32C2
+#define out	out.val
+#define in	in.val
+#define out_w1ts out_w1ts.val
+#define out_w1tc out_w1tc.val
+/* arch_curr_cpu() is not available for riscv based chips */
+#define CPU_ID()  0
+#define ISR_HANDLER isr_handler_t
+#elif CONFIG_SOC_SERIES_ESP32C3
 /* gpio structs in esp32c3 series are different from xtensa ones */
 #define out out.data
 #define in in.data

tests/drivers/gpio/gpio_basic_api/socs/esp32c2.overlay

@@ -0,0 +1,13 @@
+/*
+ * Copyright (c) 2023 Espressif Systems (Shanghai) Co., Ltd.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+/ {
+	resources {
+		compatible = "test-gpio-basic-api";
+		out-gpios = <&gpio0 2 0>;
+		in-gpios = <&gpio0 3 0>;
+	};
+};