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authorPavel Revak <palo@bielyvlk.sk>2009-08-21 01:30:54 -0400
committerDmitry Torokhov <dmitry.torokhov@gmail.com>2009-08-21 03:54:13 -0400
commit9b2fb2da4edfb163842800abbeb4c14bc1759469 (patch)
treecc922e8b4c94d20cfbf63e50d4eca4398a0a642d /drivers
parent1700f5fde88f9a251037bc86bde538ee32c59905 (diff)
Input: ucb1400_ts - enable interrupt unconditionally
Sometimes, when using the touchscreen, it stops working till next restart and the following message is printed: ucb1400: unexpected IE_STATUS = 0x0 The following patch retriggers the touchscreen interrupt unconditionally. This prevents hanging of the touchscreen in case of bogus interrupt occurence. Signed-off-by: Pavel Revak <palo@bielyvlk.sk> Acked-by: Marek Vasut <marek.vasut@gmail.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/input/touchscreen/ucb1400_ts.c8
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/input/touchscreen/ucb1400_ts.c b/drivers/input/touchscreen/ucb1400_ts.c
index 3b345f9cf0c7..3a7a58222f83 100644
--- a/drivers/input/touchscreen/ucb1400_ts.c
+++ b/drivers/input/touchscreen/ucb1400_ts.c
@@ -170,11 +170,11 @@ static void ucb1400_handle_pending_irq(struct ucb1400_ts *ucb)
170 ucb1400_reg_write(ucb->ac97, UCB_IE_CLEAR, isr); 170 ucb1400_reg_write(ucb->ac97, UCB_IE_CLEAR, isr);
171 ucb1400_reg_write(ucb->ac97, UCB_IE_CLEAR, 0); 171 ucb1400_reg_write(ucb->ac97, UCB_IE_CLEAR, 0);
172 172
173 if (isr & UCB_IE_TSPX) { 173 if (isr & UCB_IE_TSPX)
174 ucb1400_ts_irq_disable(ucb->ac97); 174 ucb1400_ts_irq_disable(ucb->ac97);
175 enable_irq(ucb->irq); 175 else
176 } else 176 dev_dbg(&ucb->ts_idev->dev, "ucb1400: unexpected IE_STATUS = %#x\n", isr);
177 printk(KERN_ERR "ucb1400: unexpected IE_STATUS = %#x\n", isr); 177 enable_irq(ucb->irq);
178} 178}
179 179
180static int ucb1400_ts_thread(void *_ucb) 180static int ucb1400_ts_thread(void *_ucb)