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authorMark Brown <broonie@opensource.wolfsonmicro.com>2011-12-27 17:20:10 +0000
committerSamuel Ortiz <sameo@linux.intel.com>2012-01-09 00:37:47 +0100
commit953c7d025d97916e56fd6f1bd347e1c19fd7d5f5 (patch)
tree770134df40ea088076747b65283c84da6586aebe /drivers/mfd/wm831x-irq.c
parente3380333b8fdaad07d53953c1831b90d9cc23821 (diff)
downloadlinux-953c7d025d97916e56fd6f1bd347e1c19fd7d5f5.tar.bz2
mfd: Still check other interrupts if we get a wm831x touchscreen IRQ
It is possible that we will see another interrupt triggering at the same time as the touchscreen interrupts so it's still worth checking other possible sources. Almost all of the win from the fast path comes from only needing to read the primary register and saving the I/O costs. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Diffstat (limited to 'drivers/mfd/wm831x-irq.c')
-rw-r--r--drivers/mfd/wm831x-irq.c3
1 files changed, 1 insertions, 2 deletions
diff --git a/drivers/mfd/wm831x-irq.c b/drivers/mfd/wm831x-irq.c
index 7be5f09f4fcf..bec4d0539160 100644
--- a/drivers/mfd/wm831x-irq.c
+++ b/drivers/mfd/wm831x-irq.c
@@ -472,8 +472,7 @@ static irqreturn_t wm831x_irq_thread(int irq, void *data)
handle_nested_irq(wm831x->irq_base + WM831X_IRQ_TCHPD);
if (primary & WM831X_TCHDATA_INT)
handle_nested_irq(wm831x->irq_base + WM831X_IRQ_TCHDATA);
- if (primary & (WM831X_TCHDATA_EINT | WM831X_TCHPD_EINT))
- goto out;
+ primary &= ~(WM831X_TCHDATA_EINT | WM831X_TCHPD_EINT);
for (i = 0; i < ARRAY_SIZE(wm831x_irqs); i++) {
int offset = wm831x_irqs[i].reg - 1;