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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>
This commit is contained in:
Sebastian Andrzej Siewior 2013-06-05 16:30:00 +02:00
parent 00789e5deb
commit 9a28b8834c
1 changed files with 6 additions and 4 deletions
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10
drivers/input/touchscreen/ti_am335x_tsc.c
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@ -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,