Signed-off-by: Sebastien Jan <[email protected]>
---
 Documentation/devicetree/bindings/mfd/arizona.txt | 2 ++
 drivers/mfd/arizona-core.c                        | 5 +++++
 2 files changed, 7 insertions(+)

diff --git a/Documentation/devicetree/bindings/mfd/arizona.txt 
b/Documentation/devicetree/bindings/mfd/arizona.txt
index a8fee60..f9405ad 100644
--- a/Documentation/devicetree/bindings/mfd/arizona.txt
+++ b/Documentation/devicetree/bindings/mfd/arizona.txt
@@ -46,6 +46,8 @@ Optional properties:
   - wlf,reset : GPIO specifier for the GPIO controlling /RESET
   - wlf,ldoena : GPIO specifier for the GPIO controlling LDOENA
 
+  - irq-gpios : GPIO specifier for the GPIO connected to /IRQ
+
   - wlf,gpio-defaults : A list of GPIO configuration register values. Defines
     for the appropriate values can found in <dt-bindings/mfd/arizona.txt>. If
     absent, no configuration of these registers is performed. If any entry has
diff --git a/drivers/mfd/arizona-core.c b/drivers/mfd/arizona-core.c
index 44cfdbb..2046617 100644
--- a/drivers/mfd/arizona-core.c
+++ b/drivers/mfd/arizona-core.c
@@ -814,6 +814,11 @@ static int arizona_of_get_core_pdata(struct arizona 
*arizona)
                count++;
        }
 
+       arizona->pdata.irq_gpio = of_get_named_gpio(arizona->dev->of_node,
+                                                       "irq-gpios", 0);
+       if (arizona->pdata.irq_gpio < 0)
+               arizona->pdata.irq_gpio = 0;
+
        return 0;
 }
 
-- 
1.9.1

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