X-Git-Url: https://git.kernelconcepts.de/?a=blobdiff_plain;f=drivers%2Finput%2Ftegra-kbc.c;h=f137f930a9fb3c36d41a923730dabafc9fa3c8eb;hb=96495d90fe0165cf0cc721083e5a0b83771e3509;hp=ab7a9e33ee0bf86e1539bc8e90a2b250d13c8f36;hpb=cae4a8a2a81ca6cd16d5de1b55d47e315cbff05a;p=karo-tx-uboot.git

diff --git a/drivers/input/tegra-kbc.c b/drivers/input/tegra-kbc.c
index ab7a9e33ee..f137f930a9 100644
--- a/drivers/input/tegra-kbc.c
+++ b/drivers/input/tegra-kbc.c
@@ -2,23 +2,7 @@
  *  (C) Copyright 2011
  *  NVIDIA Corporation <www.nvidia.com>
  *
- * See file CREDITS for list of people who contributed to this
- * project.
- *
- * 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; either version 2 of
- * the License, or (at your option) any later version.
- *
- * 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.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
- * MA 02111-1307 USA
+ * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <common.h>
@@ -63,6 +47,7 @@ static struct keyb {
 	struct kbc_tegra *kbc;		/* tegra keyboard controller */
 	unsigned char inited;		/* 1 if keyboard has been inited */
 	unsigned char first_scan;	/* 1 if this is our first key scan */
+	unsigned char created;		/* 1 if driver has been created */
 
 	/*
 	 * After init we must wait a short time before polling the keyboard.
@@ -306,6 +291,10 @@ static void tegra_kbc_open(void)
  */
 static int init_tegra_keyboard(void)
 {
+	/* check if already created */
+	if (config.created)
+		return 0;
+
 #ifdef CONFIG_OF_CONTROL
 	int	node;
 
@@ -349,6 +338,7 @@ static int init_tegra_keyboard(void)
 	config_kbc_gpio(config.kbc);
 
 	tegra_kbc_open();
+	config.created = 1;
 	debug("%s: Tegra keyboard ready\n", __func__);
 
 	return 0;
@@ -357,6 +347,8 @@ static int init_tegra_keyboard(void)
 int drv_keyboard_init(void)
 {
 	struct stdio_dev dev;
+	char *stdinname = getenv("stdin");
+	int error;
 
 	if (input_init(&config.input, 0)) {
 		debug("%s: Cannot set up input\n", __func__);
@@ -372,5 +364,13 @@ int drv_keyboard_init(void)
 	dev.start = init_tegra_keyboard;
 
 	/* Register the device. init_tegra_keyboard() will be called soon */
-	return input_stdio_register(&dev);
+	error = input_stdio_register(&dev);
+	if (error)
+		return error;
+#ifdef CONFIG_CONSOLE_MUX
+	error = iomux_doenv(stdin, stdinname);
+	if (error)
+		return error;
+#endif
+	return 0;
 }