Merge branch 'fix/support_union_lp_io_clk_control_v5.3' into 'release/v5.3'

fix(esp_driver_gpio): manage lp_io module clock by driver (v5.3)

See merge request espressif/esp-idf!31359

components/ulp/lp_core/lp_core/include/ulp_lp_core_gpio.h

@@ -49,11 +49,16 @@ typedef enum {
 
 /**
  * @brief Initialize a rtcio pin
+ * @note If IO is used in LP application, `rtc_gpio_init` must be called at least once
+ *       for the using IO before loading LP core firmware in HP Code.
  *
  * @param lp_io_num The rtc io pin to initialize
  */
 static inline void ulp_lp_core_gpio_init(lp_io_num_t lp_io_num)
 {
+#if SOC_LP_IO_CLOCK_IS_INDEPENDENT
+    _rtcio_ll_enable_io_clock(true);
+#endif
     rtcio_ll_function_select(lp_io_num, RTCIO_LL_FUNC_RTC);
 }
 

components/ulp/test_apps/lp_core/main/test_lp_core.c

@@ -8,6 +8,7 @@
 #include <inttypes.h>
 #include <sys/time.h>
 #include "soc/soc_caps.h"
+#include "soc/gpio_num.h"
 #include "esp_rom_caps.h"
 #include "lp_core_test_app.h"
 #include "lp_core_test_app_counter.h"
@@ -24,6 +25,7 @@
 #include "unity.h"
 #include "esp_sleep.h"
 #include "esp_timer.h"
+#include "driver/rtc_io.h"
 #include "freertos/FreeRTOS.h"
 #include "freertos/task.h"
 
@@ -328,6 +330,7 @@ TEST_CASE("LP core gpio tests", "[ulp]")
         .lp_timer_sleep_duration_us = LP_TIMER_TEST_SLEEP_DURATION_US,
     };
 
+    rtc_gpio_init(GPIO_NUM_0);
     load_and_start_lp_core_firmware(&cfg, lp_core_main_gpio_bin_start, lp_core_main_gpio_bin_end);
 
     while (!ulp_gpio_test_finished) {