From: Mark Brown <broonie@opensource.wolfsonmicro.com>
Date: Thu, 21 Jul 2011 09:09:24 +0000 (+0100)
Subject: mfd: Acknowledge WM8994 IRQs before reporting
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=ccd80c7142ba178f5395fe69244e6c4611100511;p=GitHub%2Fexynos8895%2Fandroid_kernel_samsung_universal8895.git

mfd: Acknowledge WM8994 IRQs before reporting

This ensures we never have a window where we've handled an interrupt but
not told the hardware about it.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---

diff --git a/drivers/mfd/wm8994-irq.c b/drivers/mfd/wm8994-irq.c
index 71c6e8f9aedb..d682f7bd112c 100644
--- a/drivers/mfd/wm8994-irq.c
+++ b/drivers/mfd/wm8994-irq.c
@@ -231,12 +231,6 @@ static irqreturn_t wm8994_irq_thread(int irq, void *data)
 		status[i] &= ~wm8994->irq_masks_cur[i];
 	}
 
-	/* Report */
-	for (i = 0; i < ARRAY_SIZE(wm8994_irqs); i++) {
-		if (status[wm8994_irqs[i].reg - 1] & wm8994_irqs[i].mask)
-			handle_nested_irq(wm8994->irq_base + i);
-	}
-
 	/* Ack any unmasked IRQs */
 	for (i = 0; i < ARRAY_SIZE(status); i++) {
 		if (status[i])
@@ -244,6 +238,12 @@ static irqreturn_t wm8994_irq_thread(int irq, void *data)
 					 status[i]);
 	}
 
+	/* Report */
+	for (i = 0; i < ARRAY_SIZE(wm8994_irqs); i++) {
+		if (status[wm8994_irqs[i].reg - 1] & wm8994_irqs[i].mask)
+			handle_nested_irq(wm8994->irq_base + i);
+	}
+
 	return IRQ_HANDLED;
 }