Merge branch 'feature/esp32h21_esp32h4_ledc_support' into 'master'

feat(ledc): Add LEDC support for ESP32H21 and ESP32H4

Closes IDF-12343, IDF-12344, IDF-12920, IDF-11568, IDF-11569, IDF-12115, and IDF-13672

See merge request espressif/esp-idf!41172

components/hal/esp32s2/include/hal/dedic_gpio_cpu_ll.h

@@ -1,5 +1,5 @@
 /*
- * SPDX-FileCopyrightText: 2020-2022 Espressif Systems (Shanghai) CO LTD
+ * SPDX-FileCopyrightText: 2020-2025 Espressif Systems (Shanghai) CO LTD
  *
  * SPDX-License-Identifier: Apache-2.0
  */
@@ -12,6 +12,12 @@
 extern "C" {
 #endif
 
+__attribute__((always_inline))
+static inline void dedic_gpio_cpu_ll_enable_output(uint32_t mask)
+{
+    // Dedicated GPIO output attribution is enabled automatically on the target
+}
+
 __attribute__((always_inline))
 static inline uint32_t dedic_gpio_cpu_ll_read_in(void)
 {

components/hal/esp32s2/include/hal/dedic_gpio_ll.h

@@ -5,16 +5,18 @@
  */
 #pragma once
 
-#ifdef __cplusplus
-extern "C" {
-#endif
-
 #include <stdint.h>
 #include <stdbool.h>
 #include "hal/misc.h"
 #include "soc/dedic_gpio_struct.h"
 #include "soc/system_reg.h"
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define DEDIC_GPIO_LL_ALLOW_REG_ACCESS  1 /*!< Allow access dedicated GPIO channel by register */
+
 static inline void _dedic_gpio_ll_enable_bus_clock(bool enable)
 {
     uint32_t reg_val = READ_PERI_REG(DPORT_CPU_PERI_CLK_EN_REG);

components/hal/esp32s2/include/hal/ledc_ll.h

@@ -39,7 +39,8 @@ extern "C" {
 
 #define LEDC_LL_IS_TIMER_SPECIFIC_CLOCK(SPEED, CLK) ((CLK) == LEDC_USE_REF_TICK)
 
-#define LEDC_LL_GLOBAL_CLK_DEFAULT LEDC_SLOW_CLK_RC_FAST
+#define LEDC_LL_GLOBAL_CLK_NC_BY_DEFAULT    1
+#define LEDC_LL_GLOBAL_CLK_DEFAULT          LEDC_SLOW_CLK_RC_FAST   // The temporal global clock source to set to at least make the LEDC core clock on
 
 /**
  * @brief Enable peripheral register clock
@@ -102,6 +103,32 @@ static inline void ledc_ll_enable_clock(ledc_dev_t *hw, bool en)
     //resolve for compatibility
 }
 
+/**
+ * @brief Enable the power for LEDC channel
+ *
+ * @param hw Beginning address of the peripheral registers
+ * @param speed_mode LEDC speed_mode, low-speed mode only
+ * @param channel_num LEDC channel index (0-7), select from ledc_channel_t
+ * @param en True to enable, false to disable
+ */
+static inline void ledc_ll_enable_channel_power(ledc_dev_t *hw, ledc_mode_t speed_mode, ledc_channel_t channel_num, bool en)
+{
+    // No per channel power control on S2
+}
+
+/**
+ * @brief Enable the power for LEDC timer
+ *
+ * @param hw Beginning address of the peripheral registers
+ * @param speed_mode LEDC speed_mode, low-speed mode only
+ * @param timer_sel LEDC timer index (0-7), select from ledc_timer_t
+ * @param en True to enable, false to disable
+ */
+static inline void ledc_ll_enable_timer_power(ledc_dev_t *hw, ledc_mode_t speed_mode, ledc_timer_t timer_sel, bool en)
+{
+    // No per timer power control on S2
+}
+
 /**
  * @brief Set LEDC low speed timer clock
  *