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-rw-r--r--arch/arm/mach-pxa/include/mach/gpio.h17
1 files changed, 15 insertions, 2 deletions
diff --git a/arch/arm/mach-pxa/include/mach/gpio.h b/arch/arm/mach-pxa/include/mach/gpio.h
index b024a8b37439..c4639502efca 100644
--- a/arch/arm/mach-pxa/include/mach/gpio.h
+++ b/arch/arm/mach-pxa/include/mach/gpio.h
@@ -99,11 +99,24 @@
#define GAFR(x) GPIO_REG(0x54 + (((x) & 0x70) >> 2))
-#define NR_BUILTIN_GPIO 128
+#define NR_BUILTIN_GPIO PXA_GPIO_IRQ_NUM
#define gpio_to_bank(gpio) ((gpio) >> 5)
#define gpio_to_irq(gpio) IRQ_GPIO(gpio)
-#define irq_to_gpio(irq) IRQ_TO_GPIO(irq)
+
+static inline int irq_to_gpio(unsigned int irq)
+{
+ int gpio;
+
+ if (irq == IRQ_GPIO0 || irq == IRQ_GPIO1)
+ return irq - IRQ_GPIO0;
+
+ gpio = irq - PXA_GPIO_IRQ_BASE;
+ if (gpio >= 2 && gpio < NR_BUILTIN_GPIO)
+ return gpio;
+
+ return -1;
+}
#ifdef CONFIG_CPU_PXA26x
/* GPIO86/87/88/89 on PXA26x have their direction bits in GPDR2 inverted,