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| author | Sebastian Andrzej Siewior <bigeasy@linutronix.de> | 2013-06-05 16:23:18 +0200 |
|---|---|---|
| committer | Sebastian Andrzej Siewior <bigeasy@linutronix.de> | 2013-06-12 18:50:22 +0200 |
| commit | 00789e5deb0af08826bd0c602d21baa9016b54b5 (patch) | |
| tree | 1f768996143ba0054dac1df240ffca5a24bc6dd7 /drivers | |
| parent | input: ti_am335x_adc: use only FIFO0 and clean up a little (diff) | |
| download | linux-00789e5deb0af08826bd0c602d21baa9016b54b5.tar.xz linux-00789e5deb0af08826bd0c602d21baa9016b54b5.zip | |
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 <bigeasy@linutronix.de>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/input/touchscreen/ti_am335x_tsc.c | 6 |
1 files changed, 6 insertions, 0 deletions
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); |