Blackfin arch: Add label to call new GPIO API

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 4708023..505b948 100644
--- a/arch/blackfin/mach-common/ints-priority-sc.c
+++ b/arch/blackfin/mach-common/ints-priority-sc.c
@@ -343,7 +343,7 @@
 	u16 gpionr = irq - IRQ_PF0;
 
 	if (!(gpio_enabled[gpio_bank(gpionr)] & gpio_bit(gpionr))) {
-		ret = gpio_request(gpionr, NULL);
+		ret = gpio_request(gpionr, "IRQ");
 		if (ret)
 			return ret;
 	}
@@ -377,7 +377,7 @@
 	if (type & (IRQ_TYPE_EDGE_RISING | IRQ_TYPE_EDGE_FALLING |
 		    IRQ_TYPE_LEVEL_HIGH | IRQ_TYPE_LEVEL_LOW)) {
 		if (!(gpio_enabled[gpio_bank(gpionr)] & gpio_bit(gpionr))) {
-			ret = gpio_request(gpionr, NULL);
+			ret = gpio_request(gpionr, "IRQ");
 			if (ret)
 				return ret;
 		}
@@ -587,7 +587,7 @@
 	}
 
 	if (!(gpio_enabled[gpio_bank(gpionr)] & gpio_bit(gpionr))) {
-		ret = gpio_request(gpionr, NULL);
+		ret = gpio_request(gpionr, "IRQ");
 		if (ret)
 			return ret;
 	}
@@ -627,7 +627,7 @@
 	if (type & (IRQ_TYPE_EDGE_RISING | IRQ_TYPE_EDGE_FALLING |
 		    IRQ_TYPE_LEVEL_HIGH | IRQ_TYPE_LEVEL_LOW)) {
 		if (!(gpio_enabled[gpio_bank(gpionr)] & gpio_bit(gpionr))) {
-			ret = gpio_request(gpionr, NULL);
+			ret = gpio_request(gpionr, "IRQ");
 			if (ret)
 				return ret;
 		}