From mboxrd@z Thu Jan 1 00:00:00 1970 From: Darren Hart Subject: Re: [PATCH 1/2] ASoC: rt5677: Add ACPI device probing Date: Tue, 25 Nov 2014 17:48:24 -0800 Message-ID: <54753168.9010303@linux.intel.com> References: <1416034608-24238-1-git-send-email-benzh@chromium.org> <5474A78C.7030805@linux.intel.com> <20141125172120.GI7712@sirena.org.uk> <5474CB5D.9050807@linux.intel.com> <20141125184304.GK7712@sirena.org.uk> Mime-Version: 1.0 Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <20141125184304.GK7712@sirena.org.uk> Sender: linux-kernel-owner@vger.kernel.org To: Mark Brown Cc: Grant Likely , Ben Zhang , alsa-devel , Liam Girdwood , Bard Liao , Oder Chiou , Anatol Pomozov , Dylan Reid , flove@realtek.com, Linux Kernel Mailing List , "Rafael J. Wysocki" List-Id: alsa-devel@alsa-project.org On 11/25/14 10:43, Mark Brown wrote: > On Tue, Nov 25, 2014 at 10:33:01AM -0800, Darren Hart wrote: >> On 11/25/14 09:21, Mark Brown wrote: > >>> Given the design of _DSD is to share with DT and we already >>> have device tree bindings for the device we should be using, >>> it's not clear to me if we want to grind them all through UEFI >>> and I suspect they'd be unhappy if we tried but pretty much all >>> audio CODECs are good candidates for use with ACPI given the >>> new hardware designs Intel have so if we are doing it I ought >>> to be bouncing everyone to UEFI forum. > >> Right, I realized between sending and driving into the office >> that my statement might be construed this way. I meant *new* _DSD >> bindings should go through the ACPI/UEFI forum. Where we can >> reuse DT bindings, we should absolutely do that, agreed. We >> should still document this and link to the DT binding so it can >> be referenced and used even when Linux is not the target OS. > > Link from where - do we want to talk to the ACPI/UEFI forum and > figure out some kind of fast track process for them to add an "it's > already covered by DT, see here" entry to their database for > example? We also ought to work out how to make sure ACPI IDs are > registered there as well, should be possible to have something > simple as part of that. > As to registering ACPI IDs, I believe this is the right link: http://www.uefi.org/PNP_ACPI_Registry Or did you mean a HID/CID<->DSD mapping? -- Darren Hart Intel Open Source Technology Center