Blackfin arch: Finalize the generic gpio support - add gpio_to_irq and irq_to_gpio

Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>

include/asm-blackfin/gpio.h

@@ -421,6 +421,19 @@ unsigned short gpio_get_value(unsigned short gpio);
 void gpio_direction_input(unsigned short gpio);
 void gpio_direction_output(unsigned short gpio);
 
+#include <asm-generic/gpio.h>		/* cansleep wrappers */
+#include <asm/irq.h>
+
+static inline int gpio_to_irq(unsigned gpio)
+{
+	return (gpio + GPIO_IRQ_BASE);
+}
+
+static inline int irq_to_gpio(unsigned irq)
+{
+	return (irq - GPIO_IRQ_BASE);
+}
+
 #endif /* __ASSEMBLY__ */
 
 #endif /* __ARCH_BLACKFIN_GPIO_H__ */

include/asm-blackfin/mach-bf533/irq.h

@@ -128,6 +128,8 @@ Core        Emulation               **
 #define IRQ_PF14		47
 #define IRQ_PF15		48
 
+#define GPIO_IRQ_BASE		IRQ_PF0
+
 #ifdef CONFIG_IRQCHIP_DEMUX_GPIO
 #define	NR_IRQS		(IRQ_PF15+1)
 #else

include/asm-blackfin/mach-bf537/irq.h

@@ -160,6 +160,8 @@ Core        Emulation               **
 #define IRQ_PH14        96
 #define IRQ_PH15        97
 
+#define GPIO_IRQ_BASE	IRQ_PF0
+
 #ifdef CONFIG_IRQCHIP_DEMUX_GPIO
 #define NR_IRQS     (IRQ_PH15+1)
 #else

include/asm-blackfin/mach-bf548/irq.h

@@ -337,6 +337,8 @@ Events         (highest priority)  EMU         0
 #define IRQ_PJ14	BFIN_PJ_IRQ(14)		/* N/A */
 #define IRQ_PJ15	BFIN_PJ_IRQ(15)		/* N/A */
 
+#define GPIO_IRQ_BASE	IRQ_PA0
+
 #ifdef CONFIG_IRQCHIP_DEMUX_GPIO
 #define NR_IRQS     (IRQ_PJ15+1)
 #else

include/asm-blackfin/mach-bf561/irq.h

@@ -289,6 +289,8 @@
 #define IRQ_PF46		119
 #define IRQ_PF47		120
 
+#define GPIO_IRQ_BASE		IRQ_PF0
+
 #ifdef CONFIG_IRQCHIP_DEMUX_GPIO
 #define NR_IRQS			(IRQ_PF47 + 1)
 #else