[PATCH 19/21] input: ti_am335x_tsc: return IRQ_NONE if there was no IRQ for us
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date: 2013-06-12 17:14:46
Also in:
linux-iio, linux-omap, lkml
Subsystem:
input (keyboard, mouse, joystick, touchscreen) drivers, the rest · Maintainers:
Dmitry Torokhov, Linus Torvalds
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>
---
drivers/input/touchscreen/ti_am335x_tsc.c | 10 ++++++----
1 file changed, 6 insertions(+), 4 deletions(-)
diff --git a/drivers/input/touchscreen/ti_am335x_tsc.c b/drivers/input/touchscreen/ti_am335x_tsc.c
index 2ba7703..0e9f02a 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,
--
1.7.10.4