From 9dd62b8c349511a5de110c9fe1e14c7cb0f781ff Mon Sep 17 00:00:00 2001
From: "J. Nick Koston" <nick@home-assistant.io>
Date: Wed, 18 Feb 2026 18:39:35 -0600
Subject: [PATCH] [pulse_counter] Fix compilation on ESP32-C6/C5/H2/P4

SOC_MOD_CLK_APB does not exist in the soc_module_clk_t enum on
ESP32-C6, C5, H2, and P4 variants. Revert to esp_clk_apb_freq()
which works on all variants and is the same function the ESP-IDF
PCNT driver uses internally for glitch filter calculation.
---
 esphome/components/pulse_counter/pulse_counter_sensor.cpp | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/esphome/components/pulse_counter/pulse_counter_sensor.cpp b/esphome/components/pulse_counter/pulse_counter_sensor.cpp
index 8ac5a28d8f..ef4cc980f6 100644
--- a/esphome/components/pulse_counter/pulse_counter_sensor.cpp
+++ b/esphome/components/pulse_counter/pulse_counter_sensor.cpp
@@ -2,7 +2,7 @@
 #include "esphome/core/log.h"
 
 #ifdef HAS_PCNT
-#include <esp_clk_tree.h>
+#include <esp_private/esp_clk.h>
 #include <hal/pcnt_ll.h>
 #endif
 
@@ -117,9 +117,7 @@ bool HwPulseCounterStorage::pulse_counter_setup(InternalGPIOPin *pin) {
   }
 
   if (this->filter_us != 0) {
-    uint32_t apb_freq;
-    esp_clk_tree_src_get_freq_hz(SOC_MOD_CLK_APB, ESP_CLK_TREE_SRC_FREQ_PRECISION_CACHED, &apb_freq);
-    uint32_t max_glitch_ns = PCNT_LL_MAX_GLITCH_WIDTH * 1000000u / apb_freq;
+    uint32_t max_glitch_ns = PCNT_LL_MAX_GLITCH_WIDTH * 1000000u / (uint32_t) esp_clk_apb_freq();
     pcnt_glitch_filter_config_t filter_config = {
         .max_glitch_ns = std::min(this->filter_us * 1000u, max_glitch_ns),
     };