mfd: Apply irq_mask_cur before handling max77686 interrupts

According to TRM, though we mask the interrupts in interrupt-mask register,
interrupt source-register still provide the status of the masked interrupts.
So we should apply irq_mask_cur to read interrupt source-register value before
handling.

Signed-off-by: Yadwinder Singh Brar <yadi.brar@samsung.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>

1 files changed, 3 insertions, 0 deletions

diff --git a/drivers/mfd/max77686-irq.c b/drivers/mfd/max77686-irq.c
index 09e593ad07b5..0758fac0c447 100644
--- a/drivers/mfd/max77686-irq.c
+++ b/drivers/mfd/max77686-irq.c
@@ -208,6 +208,9 @@ static irqreturn_t max77686_irq_thread(int irq, void *data)
 
         }
 
+        for (i = 0; i < MAX77686_IRQ_GROUP_NR; i++)
+                irq_reg[i] &= ~max77686->irq_masks_cur[i];
+
         for (i = 0; i < MAX77686_IRQ_NR; i++) {
                 if (irq_reg[max77686_irqs[i].group] & max77686_irqs[i].mask) {
                         cur_irq = irq_find_mapping(max77686->irq_domain, i);