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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2011-08-02 01:41:43 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2011-08-02 01:41:43 +0200 |
| commit | 73bcbac130a59f236ae78ed70ef7a05b45caa19e (patch) | |
| tree | 8ba06973ef3e5783e6c66ef5b0c36d65d3d75fa9 /arch | |
| parent | Merge branch 'pstore-efi' of git://git.kernel.org/pub/scm/linux/kernel/git/ae... (diff) | |
| parent | [IA64] Hook up gpiolib support (diff) | |
| download | linux-73bcbac130a59f236ae78ed70ef7a05b45caa19e.tar.xz linux-73bcbac130a59f236ae78ed70ef7a05b45caa19e.zip | |
Merge branch 'gpiolib' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6
* 'gpiolib' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6:
[IA64] Hook up gpiolib support
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/ia64/Kconfig | 4 | ||||
| -rw-r--r-- | arch/ia64/include/asm/gpio.h | 55 |
2 files changed, 59 insertions, 0 deletions
diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig index 137b277f7e56..64c7ab7e7a81 100644 --- a/arch/ia64/Kconfig +++ b/arch/ia64/Kconfig @@ -27,6 +27,7 @@ config IA64 select GENERIC_PENDING_IRQ if SMP select IRQ_PER_CPU select GENERIC_IRQ_SHOW + select ARCH_WANT_OPTIONAL_GPIOLIB default y help The Itanium Processor Family is Intel's 64-bit successor to @@ -89,6 +90,9 @@ config GENERIC_TIME_VSYSCALL config HAVE_SETUP_PER_CPU_AREA def_bool y +config GENERIC_GPIO + def_bool y + config DMI bool default y diff --git a/arch/ia64/include/asm/gpio.h b/arch/ia64/include/asm/gpio.h new file mode 100644 index 000000000000..590a20debc4e --- /dev/null +++ b/arch/ia64/include/asm/gpio.h @@ -0,0 +1,55 @@ +/* + * Generic GPIO API implementation for IA-64. + * + * A stright copy of that for PowerPC which was: + * + * Copyright (c) 2007-2008 MontaVista Software, Inc. + * + * Author: Anton Vorontsov <avorontsov@ru.mvista.com> + * + * 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. + */ + +#ifndef _ASM_IA64_GPIO_H +#define _ASM_IA64_GPIO_H + +#include <linux/errno.h> +#include <asm-generic/gpio.h> + +#ifdef CONFIG_GPIOLIB + +/* + * We don't (yet) implement inlined/rapid versions for on-chip gpios. + * Just call gpiolib. + */ +static inline int gpio_get_value(unsigned int gpio) +{ + return __gpio_get_value(gpio); +} + +static inline void gpio_set_value(unsigned int gpio, int value) +{ + __gpio_set_value(gpio, value); +} + +static inline int gpio_cansleep(unsigned int gpio) +{ + return __gpio_cansleep(gpio); +} + +static inline int gpio_to_irq(unsigned int gpio) +{ + return __gpio_to_irq(gpio); +} + +static inline int irq_to_gpio(unsigned int irq) +{ + return -EINVAL; +} + +#endif /* CONFIG_GPIOLIB */ + +#endif /* _ASM_IA64_GPIO_H */ |