Re: commit b1ef29725865 (ACPI _REV=2) causes sound regression on Dell XPS 13 [Was: Discussion around quirking the _REV behavior for the XPS 13 (2015) until 4.2]

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On Tue, May 12, 2015 at 9:18 AM, Mark Brown <broonie@xxxxxxxxxx> wrote:
> You need PulseAudio 6.0 but otherwise yes, it works for me.

Since there's no way to get this working without using new userspace,
we're basically stuck with having to support _REV 5. And since we're
supposed to support old userspace basically forever, this isn't going
to be something that we can just remove in a few months. But since the
hardware is intended to be used in I2S mode, we don't want this quirk
to be there forever. So we're basically left with adding
CONFIG_ACPI_WORKAROUND_BROKEN_DELLS which enables the quirk, default
it to Y and then let distributions set it to N when they've got
sufficiently new userspace. Unless someone has a better plan?
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