Techwizz/kernel-fxtec-pro1x
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity

Input: ucb1400_ts - enable interrupt unconditionally

Browse source 
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>
This commit is contained in:
Pavel Revak 2009-08-20 22:30:54 -07:00 committed by Dmitry Torokhov
parent 1700f5fde8
commit 9b2fb2da4e
1 changed files with 4 additions and 4 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

8
drivers/input/touchscreen/ucb1400_ts.c
View file

@ -170,11 +170,11 @@ static void ucb1400_handle_pending_irq(struct ucb1400_ts *ucb)
ucb1400_reg_write(ucb->ac97, UCB_IE_CLEAR, isr); ucb1400_reg_write(ucb->ac97, UCB_IE_CLEAR, isr);
ucb1400_reg_write(ucb->ac97, UCB_IE_CLEAR, 0); ucb1400_reg_write(ucb->ac97, UCB_IE_CLEAR, 0);
if (isr & UCB_IE_TSPX) { if (isr & UCB_IE_TSPX)
ucb1400_ts_irq_disable(ucb->ac97); ucb1400_ts_irq_disable(ucb->ac97);
enable_irq(ucb->irq); else
} else dev_dbg(&ucb->ts_idev->dev, "ucb1400: unexpected IE_STATUS = %#x\n", isr);
printk(KERN_ERR "ucb1400: unexpected IE_STATUS = %#x\n", isr); enable_irq(ucb->irq);
} }
static int ucb1400_ts_thread(void *_ucb) static int ucb1400_ts_thread(void *_ucb)