From: Baruch Siach <baruch@tkos.co.il>
Date: Tue, 20 Feb 2018 12:19:34 +0000 (+0200)
Subject: ARM: dts: bcm2835: make the firmware node into a bus
X-Git-Url: http://git.cdn.openwrt.org/?a=commitdiff_plain;h=b0c07c5af6d286f3d3b907743998e9d41f6ab042;p=openwrt%2Fstaging%2Fblogic.git

ARM: dts: bcm2835: make the firmware node into a bus

This allows adding devices for which the firmware exposes control interface
via the mailbox. An example of such device is the GPIO expander.

Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Eric Anholt <eric@anholt.net>
---

diff --git a/arch/arm/boot/dts/bcm2835-rpi.dtsi b/arch/arm/boot/dts/bcm2835-rpi.dtsi
index e36c392a2b8f..0198bd46ef7c 100644
--- a/arch/arm/boot/dts/bcm2835-rpi.dtsi
+++ b/arch/arm/boot/dts/bcm2835-rpi.dtsi
@@ -18,7 +18,9 @@
 
 	soc {
 		firmware: firmware {
-			compatible = "raspberrypi,bcm2835-firmware";
+			compatible = "raspberrypi,bcm2835-firmware", "simple-bus";
+			#address-cells = <0>;
+			#size-cells = <0>;
 			mboxes = <&mailbox>;
 		};