3c92db9ac0
v2: fixes from Mike Rapoport:
- move gpio-names.h to arch/arm/mach-tegra
fixes from Russell King
- include linux/io.h and linux/gpio.h instead of asm/io.h
and asm/gpio.h
additional changes:
- add macros to convert between irq and gpio numbers for platform data
- change for_each_bit to for_each_set_bit in gpio.c
v3:
- minor bugfixes
Signed-off-by: Colin Cross <ccross@android.com>
Signed-off-by: Erik Gilling <konkers@android.com>
54 lines
1.3 KiB
C
54 lines
1.3 KiB
C
/*
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* arch/arm/mach-tegra/include/mach/gpio.h
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*
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* Copyright (C) 2010 Google, Inc.
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*
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* Author:
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* Erik Gilling <konkers@google.com>
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*
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* This software is licensed under the terms of the GNU General Public
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* License version 2, as published by the Free Software Foundation, and
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* may be copied, distributed, and modified under those terms.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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*/
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#ifndef __MACH_TEGRA_GPIO_H
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#define __MACH_TEGRA_GPIO_H
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#include <mach/irqs.h>
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#define ARCH_NR_GPIOS INT_GPIO_NR
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#include <asm-generic/gpio.h>
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#define gpio_get_value __gpio_get_value
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#define gpio_set_value __gpio_set_value
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#define gpio_cansleep __gpio_cansleep
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#define TEGRA_GPIO_TO_IRQ(gpio) (INT_GPIO_BASE + (gpio))
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#define TEGRA_IRQ_TO_GPIO(irq) ((gpio) - INT_GPIO_BASE)
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static inline int gpio_to_irq(unsigned int gpio)
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{
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if (gpio < ARCH_NR_GPIOS)
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return INT_GPIO_BASE + gpio;
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return -EINVAL;
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}
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static inline int irq_to_gpio(unsigned int irq)
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{
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if ((irq >= INT_GPIO_BASE) && (irq < INT_GPIO_BASE + INT_GPIO_NR))
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return irq - INT_GPIO_BASE;
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return -EINVAL;
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}
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void tegra_gpio_enable(int gpio);
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void tegra_gpio_disable(int gpio);
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#endif
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