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Commit 953c7d02 authored by Mark Brown's avatar Mark Brown Committed by Samuel Ortiz
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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: default avatarMark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: default avatarSamuel Ortiz <sameo@linux.intel.com>
parent e3380333

drivers/mfd/wm831x-irq.c

+1 −2
Original line number Diff line number Diff line
@@ -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;