Blackfin arch: add error message when IRQ no available

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

1 files changed, 5 insertions, 1 deletions

diff --git a/arch/blackfin/mach-common/ints-priority-sc.c b/arch/blackfin/mach-common/ints-priority-sc.c
index 3f6305d1a1af..4708023fe716 100644
--- a/arch/blackfin/mach-common/ints-priority-sc.c
+++ b/arch/blackfin/mach-common/ints-priority-sc.c
@@ -579,8 +579,12 @@ static unsigned int bfin_gpio_irq_startup(unsigned int irq)
         u16 gpionr = irq - IRQ_PA0;
         u8 pint_val = irq2pint_lut[irq - SYS_IRQS];
 
-        if (pint_val == IRQ_NOT_AVAIL)
+        if (pint_val == IRQ_NOT_AVAIL) {
+                printk(KERN_ERR
+                "GPIO IRQ %d :Not in PINT Assign table "
+                "Reconfigure Interrupt to Port Assignemt\n", irq);
                 return -ENODEV;
+        }
 
         if (!(gpio_enabled[gpio_bank(gpionr)] & gpio_bit(gpionr))) {
                 ret = gpio_request(gpionr, NULL);