[PATCH] ASoC: AMD Renoir - add DMI table to avoid the ACP mic probe (broken BIOS)

[Mukunda,Vijendar]

On 08/12/20 11:51 pm, Mukunda,Vijendar wrote:
> 
> 
> On 08/12/20 11:27 pm, Takashi Iwai wrote:
>> On Tue, 08 Dec 2020 19:06:21 +0100,
>> Mukunda,Vijendar wrote:
>>>
>>>
>>>
>>> On 08/12/20 11:10 pm, Mark Brown wrote:
>>>> On Tue, Dec 08, 2020 at 05:24:32PM +0100, Takashi Iwai wrote:
>>>>
>>>>> BTW, both Raven and Reonir drivers point to the very same PCI ID,
>>>>> and both drivers will be probed for this machine (and both to be
>>>>> skipped).
>>>>
>>>> Ugh, that's not good.  It's not even super obvious from the code that
>>>> this is happening.  Seems like it should be one core driver which
>>>> instantiates the components for Raven and Reonir as appropriate, the 
>>>> PCI
>>>> driver is pretty thin at present anyway.
>>>>
>>>
>>> Raven and Renoir has same PCI ID but both platforms have different
>>> revision ID. Raven platform revision id is 0x00 where as for Renoir it
>>> is 0x01.
>>
>> But your drivers don't check the revision ID, as far as I see?
>>
>> The linux PCI driver doesn't distinguish the revision id at the
>> matching time, unfortunately.
>>
>>
>> Takashi
>>
> Apart from Revision ID difference, There are few hardware differences
> specific to ACP IP.
> ACP IP hardware versions are different for Raven and Renoir.
> Unfortunately we don't have specific logic to distinguish ACP hardware 
> versions for Raven and Renoir.
> 
But build wise both Raven and Renoir uses different Kconfig options.