Re: [PATCH 09/13] ASoC: amd: acp: add machine driver support for pdm use case

[Krzysztof Kozlowski <krzk@kernel.org>]

On 27/10/2023 19:32, syed saba kareem wrote:
> 
> On 10/27/23 21:53, Mark Brown wrote:
>> On Fri, Oct 27, 2023 at 10:54:47AM -0500, Mario Limonciello wrote:
>>
>>> What would actually go into MODULE_DEVICE_TABLE?
>>> The platform devices created are contingent upon what was found during the
>>> top level ACP driver probe.  You don't want all the "child" platform drivers
>>> to load unless they're needed.
>> You want
>>
>> 	MODULE_DEVICE_TABLE(platform, board_ids);
>>
>> which is effectively the same as all the MODULE_ALIAS items you have
>> there (which can be removed).
> 
> @krzk:as Mark Brown explained we can use platform device id table
> 
> instead of MODULE_ALIAS. As effectively there is no difference between
> 
> using platform device id table and MODULE_ALIAS.

There is a difference. MODULE_DEVICE_TABLE solves the problem and you do
not need to spread aliases all over. This code is not equivalent. What's
more, DEVICE_TABLE could be used for other purposes like dependency
detection or ordering or whatever. ALIAS not.

> 
> If you are still expecting us to use platform id table instead of 
> MODULE_ALIAS

Yes, I asked this first time.

> 
> we will provide the changes as an incremental patch.

Fix existing driver before adding new aliases. Then don't add ALIAS, how
I asked already two times before.

Best regards,
Krzysztof