GPIO: Tegra2: add GPIO driver for Tegra2

Signed-off-by: Tom Warren <twarren@nvidia.com>

1 files changed, 38 insertions, 0 deletions

diff --git a/arch/arm/include/asm/gpio.h b/arch/arm/include/asm/gpio.h
new file mode 100644
index 0000000..eb071d1
--- /dev/null
+++ b/arch/arm/include/asm/gpio.h
@@ -0,0 +1,38 @@
+/*
+ * Copyright (c) 2011, NVIDIA Corp. All rights reserved.
+ * 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
+ */
+
+#ifndef _GPIO_H_
+#define _GPIO_H_
+
+#include <asm/arch/gpio.h>
+/*
+ * Generic GPIO API
+ */
+
+int gpio_request(int gp, const char *label);
+void gpio_free(int gp);
+void gpio_toggle_value(int gp);
+int gpio_direction_input(int gp);
+int gpio_direction_output(int gp, int value);
+int gpio_get_value(int gp);
+void gpio_set_value(int gp, int value);
+
+#endif	/* _GPIO_H_ */