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Diffstat (limited to 'include/asm-arm/arch-pxa/gpio.h')
-rw-r--r--include/asm-arm/arch-pxa/gpio.h44
1 files changed, 26 insertions, 18 deletions
diff --git a/include/asm-arm/arch-pxa/gpio.h b/include/asm-arm/arch-pxa/gpio.h
index e67c23821017..aeba24347f8e 100644
--- a/include/asm-arm/arch-pxa/gpio.h
+++ b/include/asm-arm/arch-pxa/gpio.h
@@ -25,10 +25,8 @@
25#define __ASM_ARCH_PXA_GPIO_H 25#define __ASM_ARCH_PXA_GPIO_H
26 26
27#include <asm/arch/pxa-regs.h> 27#include <asm/arch/pxa-regs.h>
28#include <asm/arch/irqs.h> 28#include <asm/irq.h>
29#include <asm/arch/hardware.h> 29#include <asm/hardware.h>
30
31#include <asm/errno.h>
32 30
33static inline int gpio_request(unsigned gpio, const char *label) 31static inline int gpio_request(unsigned gpio, const char *label)
34{ 32{
@@ -42,26 +40,36 @@ static inline void gpio_free(unsigned gpio)
42 40
43static inline int gpio_direction_input(unsigned gpio) 41static inline int gpio_direction_input(unsigned gpio)
44{ 42{
45 if (gpio > PXA_LAST_GPIO) 43 return pxa_gpio_mode(gpio | GPIO_IN);
46 return -EINVAL;
47 pxa_gpio_mode(gpio | GPIO_IN);
48} 44}
49 45
50static inline int gpio_direction_output(unsigned gpio) 46static inline int gpio_direction_output(unsigned gpio, int value)
51{ 47{
52 if (gpio > PXA_LAST_GPIO) 48 return pxa_gpio_mode(gpio | GPIO_OUT | (value ? 0 : GPIO_DFLT_LOW));
53 return -EINVAL;
54 pxa_gpio_mode(gpio | GPIO_OUT);
55} 49}
56 50
57/* REVISIT these macros are correct, but suffer code explosion 51static inline int __gpio_get_value(unsigned gpio)
58 * for non-constant parameters. Provide out-line versions too. 52{
59 */ 53 return GPLR(gpio) & GPIO_bit(gpio);
60#define gpio_get_value(gpio) \ 54}
61 (GPLR(gpio) & GPIO_bit(gpio)) 55
56#define gpio_get_value(gpio) \
57 (__builtin_constant_p(gpio) ? \
58 __gpio_get_value(gpio) : \
59 pxa_gpio_get_value(gpio))
60
61static inline void __gpio_set_value(unsigned gpio, int value)
62{
63 if (value)
64 GPSR(gpio) = GPIO_bit(gpio);
65 else
66 GPCR(gpio) = GPIO_bit(gpio);
67}
62 68
63#define gpio_set_value(gpio,value) \ 69#define gpio_set_value(gpio,value) \
64 ((value) ? (GPSR(gpio) = GPIO_bit(gpio)):(GPCR(gpio) = GPIO_bit(gpio))) 70 (__builtin_constant_p(gpio) ? \
71 __gpio_set_value(gpio, value) : \
72 pxa_gpio_set_value(gpio, value))
65 73
66#include <asm-generic/gpio.h> /* cansleep wrappers */ 74#include <asm-generic/gpio.h> /* cansleep wrappers */
67 75