Re: [PATCH 01/19] ASoC: amd: ps: create platform devices based on acp config

[Pierre-Louis Bossart]

On 2/1/23 00:01, Mukunda,Vijendar wrote:
> On 01/02/23 09:22, Pierre-Louis Bossart wrote:
>>
>>
>>>>> In above case, two manager instances will be created.
>>>>> When manager under SWC1 scope tries to add peripheral
>>>>> device, In sdw_slave_add() API its failing because peripheral
>>>>> device descriptor uses link id followed by 48bit encoded address.
>>>>> In above scenarios, both the manager's link id is zero only.
>>>> what fails exactly? The device_register() ?
>>>>
>>>> If yes, what the issue. the device name?
>>> device_register() is failing because of duplication of
>>> device name.
>>>> I wonder if we need to use something like
>>>>
>>>> "name shall be sdw:bus_id:link:mfg:part:class"
>>>>
>>>> so as to uniquify the device name, if that was the problem.
>>> Yes correct.
>> can you check https://github.com/thesofproject/linux/pull/4165 and see
>> if this works for you? I tested it on Intel platforms.
> It's working fine on our platform. As mentioned earlier in this thread,
> we can't go with two ACPI companion device approach due to
> limitations on windows stack for current platform.

Thanks for testing.

So if you can't go with 2 ACPI companion devices, what does the
'Windows' DSDT look like and how would you identify that there are two
controllers on the platform?