summaryrefslogtreecommitdiffstats
path: root/arch/x86/include/asm/gpio.h
diff options
context:
space:
mode:
authorMark Brown <broonie@opensource.wolfsonmicro.com>2012-04-15 10:52:54 +0100
committerGrant Likely <grant.likely@secretlab.ca>2012-05-11 18:00:14 -0600
commit7563bbf89d065a2c3f05059ecbcc805645edcc62 (patch)
tree2b8231e8145a73cce0da67ce38e0360fcd0a802e /arch/x86/include/asm/gpio.h
parent25cf25073a4e1e0563c288908481f10f98acb19a (diff)
downloadop-kernel-dev-7563bbf89d065a2c3f05059ecbcc805645edcc62.zip
op-kernel-dev-7563bbf89d065a2c3f05059ecbcc805645edcc62.tar.gz
gpiolib/arches: Centralise bolierplate asm/gpio.h
Rather than requiring architectures that use gpiolib but don't have any need to define anything custom to copy an asm/gpio.h provide a Kconfig symbol which architectures must select in order to include gpio.h and for other architectures just provide the trivial implementation directly. This makes it much easier to do gpiolib updates and is also a step towards making gpiolib APIs available on every architecture. For architectures with existing boilerplate code leave a stub header in place which warns on direct inclusion of asm/gpio.h and includes linux/gpio.h to catch code that's doing this. Direct inclusion of asm/gpio.h has long been deprecated. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Jonas Bonn <jonas@southpole.se> Acked-by: Tony Luck <tony.luck@intel.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Diffstat (limited to 'arch/x86/include/asm/gpio.h')
-rw-r--r--arch/x86/include/asm/gpio.h57
1 files changed, 4 insertions, 53 deletions
diff --git a/arch/x86/include/asm/gpio.h b/arch/x86/include/asm/gpio.h
index 91d915a..b3799d8 100644
--- a/arch/x86/include/asm/gpio.h
+++ b/arch/x86/include/asm/gpio.h
@@ -1,53 +1,4 @@
-/*
- * Generic GPIO API implementation for x86.
- *
- * Derived from the generic GPIO API for powerpc:
- *
- * 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_X86_GPIO_H
-#define _ASM_X86_GPIO_H
-
-#include <asm-generic/gpio.h>
-
-#ifdef CONFIG_GPIOLIB
-
-/*
- * 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_X86_GPIO_H */
+#ifndef __LINUX_GPIO_H
+#warning Include linux/gpio.h instead of asm/gpio.h
+#include <linux/gpio.h>
+#endif
OpenPOWER on IntegriCloud