From: Torii Kenichi <torii.ken1@xxxxxxxxxxxxxx>
When setting this property, you must set alternate interrupt number in
the 'interrupts' property.
Signed-off-by: Torii Kenichi <torii.ken1@xxxxxxxxxxxxxx>
[erosca: tidy up the descriptions/comments]
Signed-off-by: Eugeniu Rosca <erosca@xxxxxxxxxxxxxx>
---
Documentation/devicetree/bindings/gpio/renesas,gpio-rcar.txt | 3 +++
1 file changed, 3 insertions(+)
diff --git a/Documentation/devicetree/bindings/gpio/renesas,gpio-rcar.txt b/Documentation/devicetree/bindings/gpio/renesas,gpio-rcar.txt
index 10dce84b1545..aa5aea90431a 100644
--- a/Documentation/devicetree/bindings/gpio/renesas,gpio-rcar.txt
+++ b/Documentation/devicetree/bindings/gpio/renesas,gpio-rcar.txt
@@ -50,6 +50,9 @@ Optional properties:
- clocks: Must contain a reference to the functional clock. The property is
mandatory if the hardware implements a controllable functional clock for
the GPIO instance.
+ - use-alternative-interrupt: Use 'alternative' GPIO interrupt instead
+ of 'normal' GPIO interrupt. When you specify this property, you must
+ also change the 'interrupts' DT property.
- gpio-reserved-ranges: See gpio.txt.
--
2.26.0
