whl-u: Sync with cml-u

src/mainboard/system76/whl-u/gpio.h

@@ -1,17 +1,4 @@
-/*
- * This file is part of the coreboot project.
- *
- * Copyright (C) 2019 System76
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
 
 #ifndef MAINBOARD_GPIO_H
 #define MAINBOARD_GPIO_H
@@ -263,8 +250,8 @@ static const struct pad_config gpio_table[] = {
 		PAD_CFG_NF(GPP_C21, NONE, DEEP, NF1),
 		// NC
 		PAD_CFG_NC(GPP_C22),
-		// NC
-		PAD_CFG_NC(GPP_C23),
+		// TP_ATTN#
+		PAD_CFG_GPI_APIC(GPP_C23, NONE, PLTRST, EDGE_SINGLE, INVERT),
 
 // GPP_D
 	// SPI1