From 11e70919673e12eb2ec37e1567422da5d0a59fac Mon Sep 17 00:00:00 2001
From: wuzhenghui <wuzhenghui@espressif.com>
Date: Tue, 2 Apr 2024 12:14:36 +0800
Subject: [PATCH] fix(esp_adc): fix adc clock missing in startup calibration

---
 components/esp_adc/adc_common.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/components/esp_adc/adc_common.c b/components/esp_adc/adc_common.c
index 01301c310f..d760a1cff8 100644
--- a/components/esp_adc/adc_common.c
+++ b/components/esp_adc/adc_common.c
@@ -56,6 +56,7 @@ esp_err_t adc_channel_to_io(adc_unit_t unit_id, adc_channel_t channel, int * con
 ---------------------------------------------------------------*/
 static __attribute__((constructor)) void adc_hw_calibration(void)
 {
+    adc_apb_periph_claim();
     //Calculate all ICode
     for (int i = 0; i < SOC_ADC_PERIPH_NUM; i++) {
         adc_hal_calibration_init(i);