[PATCH v1 4/4] ARM: dts: Enable interrupt support for cygnus crmu gpio driver

[Jonathan Richardson]

The M0 processor handles interrupts for the always-on CRMU GPIO
controller. Setting the CRMU GPIO driver with the mailbox controller as
the interrupt parent allows the mailbox controller to forward interrupts
from the M0 to the GPIO driver for processing.

Reviewed-by: Jonathan Richardson <jonathan.richardson at broadcom.com>
Tested-by: Jonathan Richardson <jonathan.richardson at broadcom.com>
Reviewed-by: Vikram Prakash <vikram.prakash at broadcom.com>
Reviewed-by: Shreesha Rajashekar <shreesha.rajashekar at broadcom.com>
Reviewed-by: Ray Jui <ray.jui at broadcom.com>
Reviewed-by: Scott Branden <scott.branden at broadcom.com>
Signed-off-by: Jonathan Richardson <jonathan.richardson at broadcom.com>
---
 arch/arm/boot/dts/bcm-cygnus.dtsi | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/arch/arm/boot/dts/bcm-cygnus.dtsi b/arch/arm/boot/dts/bcm-cygnus.dtsi
index f873b74..8b046a8 100644
--- a/arch/arm/boot/dts/bcm-cygnus.dtsi
+++ b/arch/arm/boot/dts/bcm-cygnus.dtsi
@@ -130,6 +130,9 @@
 			ngpios = <6>;
 			#gpio-cells = <2>;
 			gpio-controller;
+			interrupt-controller;
+			interrupt-parent = <&mailbox>;
+			interrupts = <0>;
 		};
 
 		i2c0: i2c at 18008000 {
-- 
1.9.1