[alsa-devel] [PATCH 1/2] ASoC: rt5677: Add ACPI device probing

[Mark Brown]

On Tue, Nov 25, 2014 at 09:31:27PM +0100, Rafael J. Wysocki wrote:
> On Tuesday, November 25, 2014 11:07:06 AM Darren Hart wrote:

> > This is a current topic with the ACPI working group. We have the
> > following document:

> > http://www.uefi.org/sites/default/files/resources/_DSD-device-properties-UUID.pdf

> This hasn't been discussed a lot at the meetings I attended.

> The bindings management process is being set up within the UEFI Forum, but I'm
> not sure if/how the existing DT bindings documented in the kernel tree are
> going to be covered by it ATM.

Al Stone (CCed) pointed me at the following two documents:

http://www.uefi.org/sites/default/files/resources/web-page-v2.pdf
http://www.uefi.org/sites/default/files/resources/nic-request-v2.pdf

(the first one being the actual process in so far as it exists).  The
process appears to be to mail requests in a specific format to the ASWG
chairperson (the address is apparently supposed to be awsg at uefi.org).
It looks like all the properties are expected to end up in one or more
PDF files like the second one.

My initial thought would be to require that we send any DT properties
defined for devices with ACPI identifiers registered there and hope the
volume doesn't DoS them.

A more defined format for DT documentation that we can script into the
ASWG format (or vice versa) might be helpful here, and we should add
notes to the DT documentation if this is how we want to proceed.
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