[PATCH v5 4/5] ARM: dts: bcm2835: make the firmware node into a bus
From: Baruch Siach <baruch@tkos.co.il>
Date: 2018-02-20 12:19:34
Also in:
linux-arm-kernel, linux-gpio
Subsystem:
the rest · Maintainer:
Linus Torvalds
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> --- v4: New patch in this series --- 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 @@ soc { firmware: firmware { - compatible = "raspberrypi,bcm2835-firmware"; + compatible = "raspberrypi,bcm2835-firmware", "simple-bus"; + #address-cells = <0>; + #size-cells = <0>; mboxes = <&mailbox>; };
--
2.16.1