diff --git a/components/soc/esp32s3/adc_periph.c b/components/soc/esp32s3/adc_periph.c
index 652cc75880..330d9fb107 100644
--- a/components/soc/esp32s3/adc_periph.c
+++ b/components/soc/esp32s3/adc_periph.c
@@ -1,16 +1,8 @@
-// Copyright 2015-2020 Espressif Systems (Shanghai) PTE LTD
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+/*
+ * SPDX-FileCopyrightText: 2015-2021 Espressif Systems (Shanghai) CO LTD
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
 
 #include "soc/adc_periph.h"
 
@@ -19,7 +11,7 @@ const int adc_channel_io_map[SOC_ADC_PERIPH_NUM][SOC_ADC_MAX_CHANNEL_NUM] = {
     /* ADC1 */
     {
         ADC1_CHANNEL_0_GPIO_NUM, ADC1_CHANNEL_1_GPIO_NUM, ADC1_CHANNEL_2_GPIO_NUM, ADC1_CHANNEL_3_GPIO_NUM, ADC1_CHANNEL_4_GPIO_NUM,
-        ADC1_CHANNEL_5_GPIO_NUM, ADC1_CHANNEL_6_GPIO_NUM, ADC1_CHANNEL_7_GPIO_NUM, -1,                      -1
+        ADC1_CHANNEL_5_GPIO_NUM, ADC1_CHANNEL_6_GPIO_NUM, ADC1_CHANNEL_7_GPIO_NUM, ADC1_CHANNEL_8_GPIO_NUM, ADC1_CHANNEL_9_GPIO_NUM
     },
     /* ADC2 */
     {
diff --git a/tools/ci/check_copyright_ignore.txt b/tools/ci/check_copyright_ignore.txt
index a440fc6969..f306204b25 100644
--- a/tools/ci/check_copyright_ignore.txt
+++ b/tools/ci/check_copyright_ignore.txt
@@ -2128,7 +2128,6 @@ components/soc/esp32s2/spi_periph.c
 components/soc/esp32s2/touch_sensor_periph.c
 components/soc/esp32s2/uart_periph.c
 components/soc/esp32s2/usb_periph.c
-components/soc/esp32s3/adc_periph.c
 components/soc/esp32s3/dedic_gpio_periph.c
 components/soc/esp32s3/gpio_periph.c
 components/soc/esp32s3/i2c_periph.c