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.
This change may also be useful in drivers/mfd/ucb1x0-core.c but I
cannot test that on my hardware.
This patch is against 2.6.24.4. Tested on InHand Fingertip4 PXA270
board.
Signed-off-by: Vernon Sauder <vsauder@xxxxxxxxxx>
Acked-by: Nicolas Pitre <nico@xxxxxxxxxxx>
diff -ur linux.orig/drivers/input/touchscreen/ucb1400_ts.c
linux.new/drivers/input/touchscreen/ucb1400_ts.c
--- linux.orig/drivers/input/touchscreen/ucb1400_ts.c 2008-03-24
14:49:18.000000000 -0400
+++ linux.new/drivers/input/touchscreen/ucb1400_ts.c 2008-04-03
21:40:43.000000000 -0400
@@ -429,10 +429,6 @@
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);
--
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