From 00789e5deb0af08826bd0c602d21baa9016b54b5 Mon Sep 17 00:00:00 2001 From: Sebastian Andrzej Siewior Date: Wed, 5 Jun 2013 16:23:18 +0200 Subject: input: ti_am335x_tsc: ACK the HW_PEN irq in ISR The interrupt source IRQENB_HW_PEN is enabled in suspend and suposed to be used as a wake up source. Once this interrupt source is unmaksed, the devices ends up in ISR and never continues. This change ACKs the interrupt and disables it so the system does not freeze. Signed-off-by: Sebastian Andrzej Siewior --- drivers/input/touchscreen/ti_am335x_tsc.c | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'drivers/input') diff --git a/drivers/input/touchscreen/ti_am335x_tsc.c b/drivers/input/touchscreen/ti_am335x_tsc.c index 1bceb2591fc7..2ba77039ab91 100644 --- a/drivers/input/touchscreen/ti_am335x_tsc.c +++ b/drivers/input/touchscreen/ti_am335x_tsc.c @@ -308,6 +308,12 @@ static irqreturn_t titsc_irq(int irq, void *dev) irqclr |= IRQENB_PENUP; } + if (status & IRQENB_HW_PEN) { + + titsc_writel(ts_dev, REG_IRQWAKEUP, 0x00); + titsc_writel(ts_dev, REG_IRQCLR, IRQENB_HW_PEN); + } + titsc_writel(ts_dev, REG_IRQSTATUS, irqclr); am335x_tsc_se_update(ts_dev->mfd_tscadc); -- cgit v1.2.3-59-g8ed1b