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SubjectRe: [GIT PULL] sound updates for 4.21
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On 12/30/18 6:19 PM, Linus Torvalds wrote:
> On Sun, Dec 30, 2018 at 3:18 PM Pierre-Louis Bossart
> <pierre-louis.bossart@linux.intel.com> wrote:
>> The KabyLake Dell XPS13 was initially used for the ASoC driver for
>> HDaudio, so there is no known hardware-related reason why this problem
>> happens.
> Mine isn't the Kabylake one, it's the older XPS13 9350 (2015 - Skylake) one.
ok. Skylake and Kabylake are nearly identical in terms of audio support
so the difference should be minor. I'll try to get a Skylake version so
that this never happens again.
>
>> The simplest way to make the problem go away is to force the legacy
>> driver to bind with the (untested) diff below.
> That diff is wrong, since it changes the meaning of the binding
> numbers, but then the module interface is wrong:
>
> static int skl_pci_binding;
> module_param_named(pci_binding, skl_pci_binding, int, 0444);
> MODULE_PARM_DESC(pci_binding, "PCI binding (0=auto, 1=only legacy,
> 2=only asoc");
>
> so I think Takashi's patch to just change the default value of
> skl_pci_binding is the better one.

You're right, this description should be changed as well to align the
text to enum values, but the idea is identical to Takashi's: use the
HDaudio legacy by default.

-Pierre

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