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>

1 files changed, 6 insertions, 6 deletions

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;
 }