diff options
Diffstat (limited to 'arch/arm/mach-pxa/generic.c')
-rw-r--r-- | arch/arm/mach-pxa/generic.c | 28 |
1 files changed, 27 insertions, 1 deletions
diff --git a/arch/arm/mach-pxa/generic.c b/arch/arm/mach-pxa/generic.c index 390524c4710f..b8cb79f899d5 100644 --- a/arch/arm/mach-pxa/generic.c +++ b/arch/arm/mach-pxa/generic.c | |||
@@ -36,6 +36,7 @@ | |||
36 | #include <asm/mach/map.h> | 36 | #include <asm/mach/map.h> |
37 | 37 | ||
38 | #include <asm/arch/pxa-regs.h> | 38 | #include <asm/arch/pxa-regs.h> |
39 | #include <asm/arch/gpio.h> | ||
39 | #include <asm/arch/udc.h> | 40 | #include <asm/arch/udc.h> |
40 | #include <asm/arch/pxafb.h> | 41 | #include <asm/arch/pxafb.h> |
41 | #include <asm/arch/mmc.h> | 42 | #include <asm/arch/mmc.h> |
@@ -106,13 +107,16 @@ unsigned long long sched_clock(void) | |||
106 | * Handy function to set GPIO alternate functions | 107 | * Handy function to set GPIO alternate functions |
107 | */ | 108 | */ |
108 | 109 | ||
109 | void pxa_gpio_mode(int gpio_mode) | 110 | int pxa_gpio_mode(int gpio_mode) |
110 | { | 111 | { |
111 | unsigned long flags; | 112 | unsigned long flags; |
112 | int gpio = gpio_mode & GPIO_MD_MASK_NR; | 113 | int gpio = gpio_mode & GPIO_MD_MASK_NR; |
113 | int fn = (gpio_mode & GPIO_MD_MASK_FN) >> 8; | 114 | int fn = (gpio_mode & GPIO_MD_MASK_FN) >> 8; |
114 | int gafr; | 115 | int gafr; |
115 | 116 | ||
117 | if (gpio > PXA_LAST_GPIO) | ||
118 | return -EINVAL; | ||
119 | |||
116 | local_irq_save(flags); | 120 | local_irq_save(flags); |
117 | if (gpio_mode & GPIO_DFLT_LOW) | 121 | if (gpio_mode & GPIO_DFLT_LOW) |
118 | GPCR(gpio) = GPIO_bit(gpio); | 122 | GPCR(gpio) = GPIO_bit(gpio); |
@@ -125,11 +129,33 @@ void pxa_gpio_mode(int gpio_mode) | |||
125 | gafr = GAFR(gpio) & ~(0x3 << (((gpio) & 0xf)*2)); | 129 | gafr = GAFR(gpio) & ~(0x3 << (((gpio) & 0xf)*2)); |
126 | GAFR(gpio) = gafr | (fn << (((gpio) & 0xf)*2)); | 130 | GAFR(gpio) = gafr | (fn << (((gpio) & 0xf)*2)); |
127 | local_irq_restore(flags); | 131 | local_irq_restore(flags); |
132 | |||
133 | return 0; | ||
128 | } | 134 | } |
129 | 135 | ||
130 | EXPORT_SYMBOL(pxa_gpio_mode); | 136 | EXPORT_SYMBOL(pxa_gpio_mode); |
131 | 137 | ||
132 | /* | 138 | /* |
139 | * Return GPIO level | ||
140 | */ | ||
141 | int pxa_gpio_get_value(unsigned gpio) | ||
142 | { | ||
143 | return __gpio_get_value(gpio); | ||
144 | } | ||
145 | |||
146 | EXPORT_SYMBOL(pxa_gpio_get_value); | ||
147 | |||
148 | /* | ||
149 | * Set output GPIO level | ||
150 | */ | ||
151 | void pxa_gpio_set_value(unsigned gpio, int value) | ||
152 | { | ||
153 | __gpio_set_value(gpio, value); | ||
154 | } | ||
155 | |||
156 | EXPORT_SYMBOL(pxa_gpio_set_value); | ||
157 | |||
158 | /* | ||
133 | * Routine to safely enable or disable a clock in the CKEN | 159 | * Routine to safely enable or disable a clock in the CKEN |
134 | */ | 160 | */ |
135 | void pxa_set_cken(int clock, int enable) | 161 | void pxa_set_cken(int clock, int enable) |