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https://github.com/edk2-porting/linux-next.git
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78331aded9
gpiolib returns -ENXIO if struct gpio_chip::to_irq isn't set, so it's safe to always call. Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
54 lines
1.1 KiB
C
54 lines
1.1 KiB
C
/*
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* Generic GPIO API implementation for PowerPC.
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*
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* Copyright (c) 2007-2008 MontaVista Software, Inc.
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*
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* Author: Anton Vorontsov <avorontsov@ru.mvista.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*/
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#ifndef __ASM_POWERPC_GPIO_H
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#define __ASM_POWERPC_GPIO_H
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#include <linux/errno.h>
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#include <asm-generic/gpio.h>
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#ifdef CONFIG_GPIOLIB
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/*
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* We don't (yet) implement inlined/rapid versions for on-chip gpios.
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* Just call gpiolib.
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*/
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static inline int gpio_get_value(unsigned int gpio)
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{
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return __gpio_get_value(gpio);
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}
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static inline void gpio_set_value(unsigned int gpio, int value)
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{
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__gpio_set_value(gpio, value);
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}
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static inline int gpio_cansleep(unsigned int gpio)
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{
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return __gpio_cansleep(gpio);
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}
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static inline int gpio_to_irq(unsigned int gpio)
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{
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return __gpio_to_irq(gpio);
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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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return -EINVAL;
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}
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#endif /* CONFIG_GPIOLIB */
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#endif /* __ASM_POWERPC_GPIO_H */
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