Blackfin: increase NR_IRQS beyond NR on-chip IRQs

This makes room for off-chip IRQ controllers.
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>

arch/blackfin/include/asm/irq.h

@@ -12,6 +12,9 @@
 
 #include <linux/irqflags.h>
 
+/* IRQs that may be used by external irq_chip controllers */
+#define NR_SPARE_IRQS	32
+
 #include <mach/anomaly.h>
 
 /* SYS_IRQS and NR_IRQS are defined in <mach-bf5xx/irq.h> */

arch/blackfin/mach-bf518/include/mach/irq.h

@@ -151,7 +151,8 @@
 
 #define GPIO_IRQ_BASE	IRQ_PF0
 
-#define NR_IRQS     (IRQ_PH15 + 1)
+#define NR_MACH_IRQS	(IRQ_PH15 + 1)
+#define NR_IRQS		(NR_MACH_IRQS + NR_SPARE_IRQS)
 
 #define IVG7            7
 #define IVG8            8

arch/blackfin/mach-bf527/include/mach/irq.h

@@ -151,7 +151,8 @@
 
 #define GPIO_IRQ_BASE	IRQ_PF0
 
-#define NR_IRQS     (IRQ_PH15+1)
+#define NR_MACH_IRQS	(IRQ_PH15 + 1)
+#define NR_IRQS		(NR_MACH_IRQS + NR_SPARE_IRQS)
 
 #define IVG7            7
 #define IVG8            8

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

@@ -104,7 +104,8 @@ Core        Emulation               **
 
 #define GPIO_IRQ_BASE		IRQ_PF0
 
-#define	NR_IRQS		(IRQ_PF15+1)
+#define NR_MACH_IRQS		(IRQ_PF15 + 1)
+#define NR_IRQS			(NR_MACH_IRQS + NR_SPARE_IRQS)
 
 #define IVG7			7
 #define IVG8			8

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

@@ -134,7 +134,8 @@
 
 #define GPIO_IRQ_BASE	IRQ_PF0
 
-#define NR_IRQS     (IRQ_PH15+1)
+#define NR_MACH_IRQS	(IRQ_PH15 + 1)
+#define NR_IRQS		(NR_MACH_IRQS + NR_SPARE_IRQS)
 
 #define IVG7            7
 #define IVG8            8

arch/blackfin/mach-bf538/include/mach/irq.h

@@ -110,7 +110,8 @@
 
 #define GPIO_IRQ_BASE	IRQ_PF0
 
-#define NR_IRQS     (IRQ_PF15+1)
+#define NR_MACH_IRQS	(IRQ_PF15 + 1)
+#define NR_IRQS		(NR_MACH_IRQS + NR_SPARE_IRQS)
 
 #define IVG7            7
 #define IVG8            8

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

@@ -317,7 +317,8 @@ Events         (highest priority)  EMU         0
 
 #define GPIO_IRQ_BASE	IRQ_PA0
 
-#define NR_IRQS     (IRQ_PJ15+1)
+#define NR_MACH_IRQS	(IRQ_PJ15 + 1)
+#define NR_IRQS		(NR_MACH_IRQS + NR_SPARE_IRQS)
 
 /* For compatibility reasons with existing code */
 

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

@@ -265,7 +265,8 @@
 
 #define GPIO_IRQ_BASE		IRQ_PF0
 
-#define NR_IRQS			(IRQ_PF47 + 1)
+#define NR_MACH_IRQS		(IRQ_PF47 + 1)
+#define NR_IRQS			(NR_MACH_IRQS + NR_SPARE_IRQS)
 
 #define IVG7			7
 #define IVG8			8

arch/blackfin/mach-common/ints-priority.c

@@ -1114,7 +1114,7 @@ int __init init_arch_irq(void)
 #endif
 
 	/* if configured as edge, then will be changed to do_edge_IRQ */
-	for (irq = GPIO_IRQ_BASE; irq < NR_IRQS; irq++)
+	for (irq = GPIO_IRQ_BASE; irq < NR_MACH_IRQS; irq++)
 		set_irq_chip_and_handler(irq, &bfin_gpio_irqchip,
 					 handle_level_irq);