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Commit 9b2fb2da authored by Pavel Revak's avatar Pavel Revak Committed by Dmitry Torokhov
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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: default avatarPavel Revak <palo@bielyvlk.sk>
Acked-by: default avatarMarek Vasut <marek.vasut@gmail.com>
Signed-off-by: default avatarDmitry Torokhov <dtor@mail.ru>
parent 1700f5fd

drivers/input/touchscreen/ucb1400_ts.c

+4 −4
Original line number Diff line number Diff line
@@ -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, 0);



	if (isr & UCB_IE_TSPX) {

	if (isr & UCB_IE_TSPX)

		ucb1400_ts_irq_disable(ucb->ac97);

	else

		dev_dbg(&ucb->ts_idev->dev, "ucb1400: unexpected IE_STATUS = %#x\n", isr);

	enable_irq(ucb->irq);

	} else

		printk(KERN_ERR "ucb1400: unexpected IE_STATUS = %#x\n", isr);

}



static int ucb1400_ts_thread(void *_ucb)