Stefan Wahren <stefan.wah...@i2se.com> writes:
> 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?There are 4 and this is the only one used so far, so it seems terribly unlikely to get reused. If the firmware did for some reason decide to reuse it for something else, they'd surely go override the DT like they have in the past.
signature.asc
Description: PGP signature
