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authorLinus Torvalds <torvalds@linux-foundation.org>2011-05-28 10:56:34 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2011-05-28 10:56:34 -0700
commit04830fccdcafa7e0ea913990ae56437253553fef (patch)
tree16d423628a516f544a0e5bb8fd4f00d88a55395f /include
parentMerge branch 'setns' (diff)
parentMerge branch 'for_2.6.40/gpio-move' of git://git.kernel.org/pub/scm/linux/kernel/git/khilman/linux-omap-pm into gpio/next (diff)
downloadlinux-dev-04830fccdcafa7e0ea913990ae56437253553fef.tar.xz
linux-dev-04830fccdcafa7e0ea913990ae56437253553fef.zip
Merge branch 'gpio/next' of git://git.secretlab.ca/git/linux-2.6
* 'gpio/next' of git://git.secretlab.ca/git/linux-2.6: gpio/pch_gpio: Support new device ML7223 gpio: make gpio_{request,free}_array gpio array parameter const GPIO: OMAP: move to drivers/gpio GPIO: OMAP: move register offset defines into <plat/gpio.h> gpio: Convert gpio_is_valid to return bool gpio: Move the s5pc100 GPIO to drivers/gpio gpio: Move the s5pv210 GPIO to drivers/gpio gpio: Move the exynos4 GPIO to drivers/gpio gpio: Move to Samsung common GPIO library to drivers/gpio gpio/nomadik: add function to read GPIO pull down status gpio/nomadik: show all pins in debug gpio: move Nomadik GPIO driver to drivers/gpio gpio: move U300 GPIO driver to drivers/gpio langwell_gpio: add runtime pm support gpio/pca953x: Add support for pca9574 and pca9575 devices gpio/cs5535: Show explicit dependency between gpio_cs5535 and mfd_cs5535
Diffstat (limited to 'include')
-rw-r--r--include/asm-generic/gpio.h10
-rw-r--r--include/linux/gpio.h8
2 files changed, 9 insertions, 9 deletions
diff --git a/include/asm-generic/gpio.h b/include/asm-generic/gpio.h
index ff5c66080c8c..fcdcb5d5c995 100644
--- a/include/asm-generic/gpio.h
+++ b/include/asm-generic/gpio.h
@@ -35,9 +35,9 @@
* platform data and other tables.
*/
-static inline int gpio_is_valid(int number)
+static inline bool gpio_is_valid(int number)
{
- return ((unsigned)number) < ARCH_NR_GPIOS;
+ return number >= 0 && number < ARCH_NR_GPIOS;
}
struct device;
@@ -193,8 +193,8 @@ struct gpio {
};
extern int gpio_request_one(unsigned gpio, unsigned long flags, const char *label);
-extern int gpio_request_array(struct gpio *array, size_t num);
-extern void gpio_free_array(struct gpio *array, size_t num);
+extern int gpio_request_array(const struct gpio *array, size_t num);
+extern void gpio_free_array(const struct gpio *array, size_t num);
#ifdef CONFIG_GPIO_SYSFS
@@ -212,7 +212,7 @@ extern void gpio_unexport(unsigned gpio);
#else /* !CONFIG_GPIOLIB */
-static inline int gpio_is_valid(int number)
+static inline bool gpio_is_valid(int number)
{
/* only non-negative numbers are valid */
return number >= 0;
diff --git a/include/linux/gpio.h b/include/linux/gpio.h
index 32720baf70f1..32d47e710661 100644
--- a/include/linux/gpio.h
+++ b/include/linux/gpio.h
@@ -25,9 +25,9 @@ struct gpio_chip;
* warning when something is wrongly called.
*/
-static inline int gpio_is_valid(int number)
+static inline bool gpio_is_valid(int number)
{
- return 0;
+ return false;
}
static inline int gpio_request(unsigned gpio, const char *label)
@@ -41,7 +41,7 @@ static inline int gpio_request_one(unsigned gpio,
return -ENOSYS;
}
-static inline int gpio_request_array(struct gpio *array, size_t num)
+static inline int gpio_request_array(const struct gpio *array, size_t num)
{
return -ENOSYS;
}
@@ -54,7 +54,7 @@ static inline void gpio_free(unsigned gpio)
WARN_ON(1);
}
-static inline void gpio_free_array(struct gpio *array, size_t num)
+static inline void gpio_free_array(const struct gpio *array, size_t num)
{
might_sleep();