From: Mark Brown Date: Tue, 27 Dec 2011 17:20:10 +0000 (+0000) Subject: mfd: Still check other interrupts if we get a wm831x touchscreen IRQ X-Git-Tag: v3.3-rc1~71^2~3 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=953c7d025d97916e56fd6f1bd347e1c19fd7d5f5;p=profile%2Fivi%2Fkernel-x86-ivi.git 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 Signed-off-by: Samuel Ortiz --- diff --git a/drivers/mfd/wm831x-irq.c b/drivers/mfd/wm831x-irq.c index 7be5f09..bec4d05 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;