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authorDaniel Silverstone <dsilvers@simtec.co.uk>2008-12-13 21:44:12 +0100
committerBen Dooks <ben-linux@fluff.org>2008-12-14 12:34:47 +0100
commit72880ad866c21badace4d8026c1e58f2fde087fb (patch)
tree83a2a5a7f46ef890426ee83c931c14ac325724be /arch/arm/mach-ks8695/include
parent[ARM] KS8695: Fix up device registration. (diff)
downloadlinux-72880ad866c21badace4d8026c1e58f2fde087fb.tar.xz
linux-72880ad866c21badace4d8026c1e58f2fde087fb.zip
[ARM] KS8695: Fixup the KS8695 GPIO to be GPIOLIB
This patch is as small a change as possible to the KS8695 GPIO layer to use GPIOLIB to allow the generic GPIO expanders and the like to be compiled. As a side-effect, we also remove __init_or_module from several functions which could be called by drivers such as i2c-gpio which could plausibly be compiled into a non-modular kernel. Signed-off-by: Daniel Silverstone <dsilvers@simtec.co.uk> Signed-off-by: Vincent Sanders <vince@simtec.co.uk> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Diffstat (limited to 'arch/arm/mach-ks8695/include')
-rw-r--r--arch/arm/mach-ks8695/include/mach/gpio.h45
1 files changed, 12 insertions, 33 deletions
diff --git a/arch/arm/mach-ks8695/include/mach/gpio.h b/arch/arm/mach-ks8695/include/mach/gpio.h
index d4af5c335f16..6379f2fe843d 100644
--- a/arch/arm/mach-ks8695/include/mach/gpio.h
+++ b/arch/arm/mach-ks8695/include/mach/gpio.h
@@ -30,53 +30,32 @@
#define KS8695_GPIO_14 14
#define KS8695_GPIO_15 15
-
/*
* Configure GPIO pin as external interrupt source.
*/
-int __init_or_module ks8695_gpio_interrupt(unsigned int pin, unsigned int type);
-
-/*
- * Configure the GPIO line as an input.
- */
-int __init_or_module gpio_direction_input(unsigned int pin);
-
-/*
- * Configure the GPIO line as an output, with default state.
- */
-int __init_or_module gpio_direction_output(unsigned int pin, unsigned int state);
-
-/*
- * Set the state of an output GPIO line.
- */
-void gpio_set_value(unsigned int pin, unsigned int state);
-
-/*
- * Read the state of a GPIO line.
- */
-int gpio_get_value(unsigned int pin);
+extern int ks8695_gpio_interrupt(unsigned int pin, unsigned int type);
/*
* Map GPIO line to IRQ number.
*/
-int gpio_to_irq(unsigned int pin);
+extern int gpio_to_irq(unsigned int pin);
/*
* Map IRQ number to GPIO line.
*/
-int irq_to_gpio(unsigned int irq);
-
+extern int irq_to_gpio(unsigned int irq);
#include <asm-generic/gpio.h>
-static inline int gpio_request(unsigned int pin, const char *label)
-{
- return 0;
-}
+/* If it turns out that we need to optimise GPIO access for the
+ * Micrel's GPIOs, then these can be changed to check their argument
+ * directly as static inlines. However for now it's probably not
+ * worthwhile.
+ */
+#define gpio_get_value __gpio_get_value
+#define gpio_set_value __gpio_set_value
-static inline void gpio_free(unsigned int pin)
-{
- might_sleep();
-}
+/* Register the GPIOs */
+extern void ks8695_register_gpios(void);
#endif