[v5,4/5] ARM: dts: bcm2835: make the firmware node into a bus
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Message ID 43f9082a6835df6d7bcd3e16d79db687c52826d2.1519128054.git.baruch@tkos.co.il
State New, archived
Headers show

Commit Message

Baruch Siach Feb. 20, 2018, 12:19 p.m. UTC
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(-)

Comments

Linus Walleij Feb. 22, 2018, 12:51 p.m. UTC | #1
On Tue, Feb 20, 2018 at 1:19 PM, Baruch Siach <baruch@tkos.co.il> wrote:

> 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

Reviewed-by: Linus Walleij <linus.walleij@linaro.org>

Please funnel this patch through the ARM SoC tree.

Yours,
Linus Walleij

Patch
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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>;
 		};