Input: ucb1400_ts - IRQ probe fix

The UCB1400 driver IRQ probe code fails to find an interrupt if all
the interrupts in the range 0-31 are nonprobe-able. This patch
removes the check of the return value so interrupts above 31 can be
detected.

Tested on InHand Fingertip4 PXA270 board.

Signed-off-by: Vernon Sauder <vsauder@inhand.com>
Acked-by: Nicolas Pitre <nico@marvell.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>

1 files changed, 0 insertions, 4 deletions

diff --git a/drivers/input/touchscreen/ucb1400_ts.c b/drivers/input/touchscreen/ucb1400_ts.c
index 607f9933aa1f..bce018e45bce 100644
--- a/drivers/input/touchscreen/ucb1400_ts.c
+++ b/drivers/input/touchscreen/ucb1400_ts.c
@@ -427,10 +427,6 @@ static int ucb1400_detect_irq(struct ucb1400 *ucb)
         unsigned long mask, timeout;
 
         mask = probe_irq_on();
-        if (!mask) {
-                probe_irq_off(mask);
-                return -EBUSY;
-        }
 
         /* Enable the ADC interrupt. */
         ucb1400_reg_write(ucb, UCB_IE_RIS, UCB_IE_ADC);