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>

diff --git a/arch/blackfin/mach-common/ints-priority-sc.c b/arch/blackfin/mach-common/ints-priority-sc.c
index 3f6305d..4708023 100644 (file)
--- 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);