regmap: irq: Factor register read out of the IRQ parsing loop

In preparation for adding back support for block reads.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

1 files changed, 9 insertions, 7 deletions

diff --git a/drivers/base/regmap/regmap-irq.c b/drivers/base/regmap/regmap-irq.c
index 91294935130e..329be9836716 100644
--- a/drivers/base/regmap/regmap-irq.c
+++ b/drivers/base/regmap/regmap-irq.c
@@ -170,13 +170,6 @@ static irqreturn_t regmap_irq_thread(int irq, void *d)
                 }
         }
 
-        /*
-         * Ignore masked IRQs and ack if we need to; we ack early so
-         * there is no race between handling and acknowleding the
-         * interrupt.  We assume that typically few of the interrupts
-         * will fire simultaneously so don't worry about overhead from
-         * doing a write per register.
-         */
         for (i = 0; i < data->chip->num_regs; i++) {
                 ret = regmap_read(map, chip->status_base + (i * map->reg_stride
                                    * data->irq_reg_stride),
@@ -189,7 +182,16 @@ static irqreturn_t regmap_irq_thread(int irq, void *d)
                                 pm_runtime_put(map->dev);
                         return IRQ_NONE;
                 }
+        }
 
+        /*
+         * Ignore masked IRQs and ack if we need to; we ack early so
+         * there is no race between handling and acknowleding the
+         * interrupt.  We assume that typically few of the interrupts
+         * will fire simultaneously so don't worry about overhead from
+         * doing a write per register.
+         */
+        for (i = 0; i < data->chip->num_regs; i++) {
                 data->status_buf[i] &= ~data->mask_buf[i];
 
                 if (data->status_buf[i] && chip->ack_base) {