1 files changed, 80 insertions, 0 deletions

diff --git a/arch/arm/mach-tegra/include/mach/gpio.h b/arch/arm/mach-tegra/include/mach/gpio.h
new file mode 100644
index 00000000000..b7357ab0c4d
--- /dev/null
+++ b/arch/arm/mach-tegra/include/mach/gpio.h
@@ -0,0 +1,80 @@
+/*
+ * arch/arm/mach-tegra/include/mach/gpio.h
+ *
+ * Copyright (C) 2010 Google, Inc.
+ *
+ * Author:
+ *      Erik Gilling <konkers@google.com>
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * 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.
+ *
+ */
+
+#ifndef __MACH_TEGRA_GPIO_H
+#define __MACH_TEGRA_GPIO_H
+
+#include <linux/init.h>
+#include <mach/irqs.h>
+
+#define TEGRA_NR_GPIOS          INT_GPIO_NR
+#define ARCH_NR_GPIOS           (TEGRA_NR_GPIOS + 128)
+
+#include <asm-generic/gpio.h>
+#include "pinmux.h"
+
+struct gpio_init_pin_info {
+        char name[16];
+        int gpio_nr;
+        bool is_gpio;
+        bool is_input;
+        int value; /* Value if it is output*/
+};
+
+#define gpio_get_value          __gpio_get_value
+#define gpio_set_value          __gpio_set_value
+#define gpio_cansleep           __gpio_cansleep
+
+#define TEGRA_GPIO_TO_IRQ(gpio) (INT_GPIO_BASE + (gpio))
+#define TEGRA_IRQ_TO_GPIO(irq) ((irq) - INT_GPIO_BASE)
+
+static inline int gpio_to_irq(unsigned int gpio)
+{
+        /* SOC gpio */
+        if (gpio < TEGRA_NR_GPIOS)
+                return INT_GPIO_BASE + gpio;
+
+        /* For non soc gpio, the external peripheral driver need to
+         * provide the implementation */
+        return __gpio_to_irq(gpio);
+}
+
+static inline int irq_to_gpio(unsigned int irq)
+{
+        /* SOC gpio */
+        if ((irq >= INT_GPIO_BASE) && (irq < INT_GPIO_BASE + INT_GPIO_NR))
+                return irq - INT_GPIO_BASE;
+
+        /* we don't supply reverse mappings for non-SOC gpios */
+        return -EIO;
+}
+
+struct tegra_gpio_table {
+        int     gpio;   /* GPIO number */
+        bool    enable; /* Enable for GPIO at init? */
+};
+
+void tegra_gpio_config(struct tegra_gpio_table *table, int num);
+void tegra_gpio_enable(int gpio);
+void tegra_gpio_disable(int gpio);
+int tegra_gpio_resume_init(void);
+void tegra_gpio_init_configure(unsigned gpio, bool is_input, int value);
+void tegra_gpio_set_tristate(int gpio, enum tegra_tristate ts);
+int tegra_gpio_get_bank_int_nr(int gpio);
+#endif