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| author | Sebastian Andrzej Siewior <bigeasy@linutronix.de> | 2013-06-05 16:30:00 +0200 |
|---|---|---|
| committer | Sebastian Andrzej Siewior <bigeasy@linutronix.de> | 2013-06-12 18:50:23 +0200 |
| commit | 9a28b8834c55f7315fb1a7c487f836472fd37bf9 (patch) | |
| tree | 88fb309f62d3aea502d18e992968f8d7e5818213 | |
| parent | 00789e5deb0af08826bd0c602d21baa9016b54b5 (diff) | |
| download | lwn-9a28b8834c55f7315fb1a7c487f836472fd37bf9.tar.gz lwn-9a28b8834c55f7315fb1a7c487f836472fd37bf9.zip | |
input: ti_am335x_tsc: return IRQ_NONE if there was no IRQ for us
The previous patch ("input/ti_am335x_tsc: ACK the HW_PEN irq in ISR")
acked the interrupt so we don't freeze if we don't handle an enabled
interrupt source. The interrupt core has a mechanism for this and to get
it work one should only say that it handled an interrupt if it is
actually the case.
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
| -rw-r--r-- | drivers/input/touchscreen/ti_am335x_tsc.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/drivers/input/touchscreen/ti_am335x_tsc.c b/drivers/input/touchscreen/ti_am335x_tsc.c index 2ba77039ab91..0e9f02aeae6b 100644 --- a/drivers/input/touchscreen/ti_am335x_tsc.c +++ b/drivers/input/touchscreen/ti_am335x_tsc.c @@ -314,10 +314,12 @@ static irqreturn_t titsc_irq(int irq, void *dev) titsc_writel(ts_dev, REG_IRQCLR, IRQENB_HW_PEN); } - titsc_writel(ts_dev, REG_IRQSTATUS, irqclr); - - am335x_tsc_se_update(ts_dev->mfd_tscadc); - return IRQ_HANDLED; + if (irqclr) { + titsc_writel(ts_dev, REG_IRQSTATUS, irqclr); + am335x_tsc_se_update(ts_dev->mfd_tscadc); + return IRQ_HANDLED; + } + return IRQ_NONE; } static int titsc_parse_dt(struct platform_device *pdev, |