From b0c07c5af6d286f3d3b907743998e9d41f6ab042 Mon Sep 17 00:00:00 2001 From: Baruch Siach Date: Tue, 20 Feb 2018 14:19:34 +0200 Subject: [PATCH] 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 Reviewed-by: Linus Walleij Reviewed-by: Eric Anholt Signed-off-by: Eric Anholt --- arch/arm/boot/dts/bcm2835-rpi.dtsi | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) 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 @@ act { soc { firmware: firmware { - compatible = "raspberrypi,bcm2835-firmware"; + compatible = "raspberrypi,bcm2835-firmware", "simple-bus"; + #address-cells = <0>; + #size-cells = <0>; mboxes = <&mailbox>; }; -- 2.45.2