[RFC 1/2] ACPI: Add support for Platform Communication Channel

Ashwin Chaugule ashwin.chaugule at linaro.org
Fri May 30 10:32:14 PDT 2014


Hi Jassi,

On 30 May 2014 09:40, Jassi Brar <jaswinder.singh at linaro.org> wrote:
>>
> Please scrape it from https://lkml.org/lkml/2014/5/15/49
> My platform also uses the doorbell mechanism with request and response
> written in shared-memory, so I am confident the mailbox api should
> work for PCC.

Just had a quick look. PCC integration appears doable and the queuing
and async notification stuff also looks useful. I'll play around with
it a bit more to see if it really works. Meanwhile, the one thing that
comes to mind is the DT bindings. For an ACPI-only kernel, we'll
probably need another function (at least) to register mbox controllers
and clients.

Cheers,
Ashwin



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