9 files changed, 18 insertions, 8 deletions

diff --git a/arch/blackfin/include/asm/irq.h b/arch/blackfin/include/asm/irq.h
index e7c0623f9091..89de539ed010 100644
--- a/arch/blackfin/include/asm/irq.h
+++ b/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> */
diff --git a/arch/blackfin/mach-bf518/include/mach/irq.h b/arch/blackfin/mach-bf518/include/mach/irq.h
index 14e52ec7afa5..52edc8483911 100644
--- a/arch/blackfin/mach-bf518/include/mach/irq.h
+++ b/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
diff --git a/arch/blackfin/mach-bf527/include/mach/irq.h b/arch/blackfin/mach-bf527/include/mach/irq.h
index aa6579a64a2f..17604b4a81cc 100644
--- a/arch/blackfin/mach-bf527/include/mach/irq.h
+++ b/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
diff --git a/arch/blackfin/mach-bf533/include/mach/irq.h b/arch/blackfin/mach-bf533/include/mach/irq.h
index c31498be0bbb..1f7e9765d954 100644
--- a/arch/blackfin/mach-bf533/include/mach/irq.h
+++ b/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
diff --git a/arch/blackfin/mach-bf537/include/mach/irq.h b/arch/blackfin/mach-bf537/include/mach/irq.h
index 0defa9457e7f..9b2cbcac98e0 100644
--- a/arch/blackfin/mach-bf537/include/mach/irq.h
+++ b/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
diff --git a/arch/blackfin/mach-bf538/include/mach/irq.h b/arch/blackfin/mach-bf538/include/mach/irq.h
index a4b7fcbc556b..7a479d224dc7 100644
--- a/arch/blackfin/mach-bf538/include/mach/irq.h
+++ b/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
diff --git a/arch/blackfin/mach-bf548/include/mach/irq.h b/arch/blackfin/mach-bf548/include/mach/irq.h
index 106db05684ae..1f99b51a3d56 100644
--- a/arch/blackfin/mach-bf548/include/mach/irq.h
+++ b/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 */
 
diff --git a/arch/blackfin/mach-bf561/include/mach/irq.h b/arch/blackfin/mach-bf561/include/mach/irq.h
index 7b208db267bf..c95566ade51b 100644
--- a/arch/blackfin/mach-bf561/include/mach/irq.h
+++ b/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
diff --git a/arch/blackfin/mach-common/ints-priority.c b/arch/blackfin/mach-common/ints-priority.c
index 3589fe8b86ba..ebf886091187 100644
--- a/arch/blackfin/mach-common/ints-priority.c
+++ b/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);