fix(lp_io): allow edge wakeup types for LP-IO on chips which support it

components/esp_driver_gpio/src/rtc_io.c

@@ -254,9 +254,11 @@ esp_err_t rtc_gpio_isolate(gpio_num_t gpio_num)
 esp_err_t rtc_gpio_wakeup_enable(gpio_num_t gpio_num, gpio_int_type_t intr_type)
 {
     ESP_RETURN_ON_FALSE(rtc_gpio_is_valid_gpio(gpio_num), ESP_ERR_INVALID_ARG, RTCIO_TAG, "RTCIO number error");
+#if !SOC_RTCIO_EDGE_WAKE_SUPPORTED
     if (intr_type == GPIO_INTR_POSEDGE || intr_type == GPIO_INTR_NEGEDGE || intr_type == GPIO_INTR_ANYEDGE) {
         return ESP_ERR_INVALID_ARG; // Dont support this mode.
     }
+#endif //!SOC_RTCIO_EDGE_WAKE_SUPPORTED
     RTCIO_ENTER_CRITICAL();
     rtcio_hal_wakeup_enable(rtc_io_number_get(gpio_num), intr_type);
     RTCIO_EXIT_CRITICAL();

components/soc/esp32c5/include/soc/Kconfig.soc_caps.in

@@ -567,6 +567,10 @@ config SOC_RTCIO_WAKE_SUPPORTED
     bool
     default y
 
+config SOC_RTCIO_EDGE_WAKE_SUPPORTED
+    bool
+    default y
+
 config SOC_DEDIC_GPIO_OUT_CHANNELS_NUM
     int
     default 8

components/soc/esp32c5/include/soc/soc_caps.h

@@ -246,6 +246,7 @@
                                                 */
 #define SOC_RTCIO_HOLD_SUPPORTED            1
 #define SOC_RTCIO_WAKE_SUPPORTED            1
+#define SOC_RTCIO_EDGE_WAKE_SUPPORTED       1
 
 /*-------------------------- Dedicated GPIO CAPS -----------------------------*/
 #define SOC_DEDIC_GPIO_OUT_CHANNELS_NUM (8) /*!< 8 outward channels on each CPU core */

components/soc/esp32c6/include/soc/Kconfig.soc_caps.in

@@ -559,6 +559,10 @@ config SOC_RTCIO_WAKE_SUPPORTED
     bool
     default y
 
+config SOC_RTCIO_EDGE_WAKE_SUPPORTED
+    bool
+    default y
+
 config SOC_DEDIC_GPIO_OUT_CHANNELS_NUM
     int
     default 8

components/soc/esp32c6/include/soc/soc_caps.h

@@ -231,6 +231,7 @@
                                              */
 #define SOC_RTCIO_HOLD_SUPPORTED            1
 #define SOC_RTCIO_WAKE_SUPPORTED            1
+#define SOC_RTCIO_EDGE_WAKE_SUPPORTED       1
 
 /*-------------------------- Dedicated GPIO CAPS -----------------------------*/
 #define SOC_DEDIC_GPIO_OUT_CHANNELS_NUM (8) /*!< 8 outward channels on each CPU core */

components/soc/esp32c61/include/soc/Kconfig.soc_caps.in

@@ -387,6 +387,10 @@ config SOC_RTCIO_WAKE_SUPPORTED
     bool
     default y
 
+config SOC_RTCIO_EDGE_WAKE_SUPPORTED
+    bool
+    default y
+
 config SOC_DEDIC_GPIO_OUT_CHANNELS_NUM
     int
     default 8

components/soc/esp32c61/include/soc/soc_caps.h

@@ -206,8 +206,9 @@
                                                  * so it supports unique IOMUX configuration (including IE, OE, PU, PD, DRV etc.)
                                                  * when the pins are switched to RTC function.
                                                  */
- #define SOC_RTCIO_HOLD_SUPPORTED            1
+#define SOC_RTCIO_HOLD_SUPPORTED            1
- #define SOC_RTCIO_WAKE_SUPPORTED            1
+#define SOC_RTCIO_WAKE_SUPPORTED            1
+#define SOC_RTCIO_EDGE_WAKE_SUPPORTED       1
 
 /*-------------------------- Dedicated GPIO CAPS -----------------------------*/
 #define SOC_DEDIC_GPIO_OUT_CHANNELS_NUM (8) /*!< 8 outward channels on each CPU core */

components/soc/esp32p4/include/soc/Kconfig.soc_caps.in

@@ -731,6 +731,10 @@ config SOC_RTCIO_WAKE_SUPPORTED
     bool
     default y
 
+config SOC_RTCIO_EDGE_WAKE_SUPPORTED
+    bool
+    default y
+
 config SOC_DEDIC_GPIO_OUT_CHANNELS_NUM
     int
     default 8

components/soc/esp32p4/include/soc/soc_caps.h

@@ -281,6 +281,7 @@
                                                  */
 #define SOC_RTCIO_HOLD_SUPPORTED            1
 #define SOC_RTCIO_WAKE_SUPPORTED            1
+#define SOC_RTCIO_EDGE_WAKE_SUPPORTED       1
 
 /*-------------------------- Dedicated GPIO CAPS -----------------------------*/
 #define SOC_DEDIC_GPIO_OUT_CHANNELS_NUM (8) /*!< 8 outward channels on each CPU core */

examples/system/ulp/lp_core/gpio_wakeup/main/lp_core_gpio_wake_up_example_main.c

@@ -34,7 +34,7 @@ static void wakeup_gpio_init(void)
     rtc_gpio_set_direction(WAKEUP_PIN, RTC_GPIO_MODE_INPUT_ONLY);
     rtc_gpio_pulldown_dis(WAKEUP_PIN);
     rtc_gpio_pullup_en(WAKEUP_PIN);
-    rtc_gpio_wakeup_enable(WAKEUP_PIN, GPIO_INTR_LOW_LEVEL);
+    rtc_gpio_wakeup_enable(WAKEUP_PIN, GPIO_INTR_NEGEDGE);
 }
 
 void app_main(void)

examples/system/ulp/lp_core/gpio_wakeup/main/ulp/main.c

@@ -14,9 +14,6 @@ int main (void)
 {
     ulp_lp_core_wakeup_main_processor();
 
-    /* Wakeup interrupt is a level interrupt, wait 1 sec to
-        allow user to release button to avoid waking up the ULP multiple times */
-    ulp_lp_core_delay_us(1000*1000);
     ulp_lp_core_gpio_clear_intr_status();
 
     return 0;