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authorOlof Johansson <olof@lixom.net>2011-02-13 19:12:27 -0800
committerOlof Johansson <olof@lixom.net>2011-02-22 17:27:11 -0800
commit632095ea15db51d73d3d084ee18620d3ac1cb040 (patch)
treef3cf8e089309abce2843e4eeab5e125a56a99752 /arch/arm/mach-tegra/include
parent38376866a1fe5b1e6d9510ec4913c2b461f456f3 (diff)
ARM: tegra: add tegra_gpio_table and tegra_gpio_config
To give one place to setup the pins that are used as GPIOs instead of as their pinmuxed functions. Specifying enabled as false explicitly disables the gpio mode of that pin (if left on by firmware). This should remove the need for calling these from specific drivers and thus reduce tegra-specific code from them. Signed-off-by: Olof Johansson <olof@lixom.net> Acked-by: Erik Gilling <konkers@android.com>
Diffstat (limited to 'arch/arm/mach-tegra/include')
-rw-r--r--arch/arm/mach-tegra/include/mach/gpio.h7
1 files changed, 7 insertions, 0 deletions
diff --git a/arch/arm/mach-tegra/include/mach/gpio.h b/arch/arm/mach-tegra/include/mach/gpio.h
index 12a7cf6874c..196f114dc24 100644
--- a/arch/arm/mach-tegra/include/mach/gpio.h
+++ b/arch/arm/mach-tegra/include/mach/gpio.h
@@ -20,6 +20,7 @@
#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
@@ -47,6 +48,12 @@ static inline int irq_to_gpio(unsigned int irq)
return -EINVAL;
}
+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);