From 9b2fb2da4edfb163842800abbeb4c14bc1759469 Mon Sep 17 00:00:00 2001 From: Pavel Revak Date: Thu, 20 Aug 2009 22:30:54 -0700 Subject: [PATCH] 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 Acked-by: Marek Vasut Signed-off-by: Dmitry Torokhov --- drivers/input/touchscreen/ucb1400_ts.c | 8 ++++---- 1 file 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) 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); - enable_irq(ucb->irq); - } else - printk(KERN_ERR "ucb1400: unexpected IE_STATUS = %#x\n", isr); + else + dev_dbg(&ucb->ts_idev->dev, "ucb1400: unexpected IE_STATUS = %#x\n", isr); + enable_irq(ucb->irq); } static int ucb1400_ts_thread(void *_ucb) -- 2.20.1