Hi Eric,

> Eric Anholt <e...@anholt.net> hat am 9. März 2018 um 19:44 geschrieben:
> 
> 
> The VCHIQ communication channel can be provided by BCM283x and Capri
> SoCs, to communicate with the VPU-side OS services.
> 
> Signed-off-by: Eric Anholt <e...@anholt.net>
> ---
> 
> v2: VCHI->VCHIQ, dropped firmware property, added cache-line-size
> v3: Dropped cache-line-size, s/vchi@/mailbox@/
> 
>  .../devicetree/bindings/soc/bcm/brcm,bcm2835-vchiq.txt   | 16 
> ++++++++++++++++
>  1 file changed, 16 insertions(+)
>  create mode 100644 
> Documentation/devicetree/bindings/soc/bcm/brcm,bcm2835-vchiq.txt
> 
> diff --git a/Documentation/devicetree/bindings/soc/bcm/brcm,bcm2835-vchiq.txt 
> b/Documentation/devicetree/bindings/soc/bcm/brcm,bcm2835-vchiq.txt
> new file mode 100644
> index 000000000000..8dd7b3a7de65
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/soc/bcm/brcm,bcm2835-vchiq.txt
> @@ -0,0 +1,16 @@
> +Broadcom VCHIQ firmware services
> +
> +Required properties:
> +
> +- compatible:        Should be "brcm,bcm2835-vchiq"
> +- reg:               Physical base address and length of the doorbell 
> register pair
> +- interrupts:        The interrupt number
> +               See bindings/interrupt-controller/brcm,bcm2835-armctrl-ic.txt
> +
> +Example:
> +
> +mailbox@7e00b840 {

just a question: do you think this is future-proof to claim the doorbell for 
VCHIQ?

Stefan

> +     compatible = "brcm,bcm2835-vchiq";
> +     reg = <0x7e00b840 0xf>;
> +     interrupts = <0 2>;
> +};
> -- 
> 2.16.2
> 
> 
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