Re: [PATCH 1/3] media: venus: Add support for static video encoder/decoder declarations

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On 28.11.2024 11:34 PM, Bryan O'Donoghue wrote:
> On 28/11/2024 22:14, Bryan O'Donoghue wrote:
>> On 28/11/2024 20:02, Konrad Dybcio wrote:
>>> Bryan,
>>>
>>> I'm still not sure if keeping the logic behind this makes sense at all.
>>>
>>> Could we not just call platform_device_register_data() with a static
>>> configuration of 1 core being enc and the other dec?
>>
>> That's another way to do this. One reason I wrote this series to continue to rely on the existing compat= method though is it stuck in my mind that we have some dependency ordering logic in at the moment.
>>
>> For example:
>>
>> commit 08b1cf474b7f72750adebe0f0a35f8e9a3eb75f6
>> Author: Bryan O'Donoghue <bryan.odonoghue@xxxxxxxxxx>
>> Date:   Fri Feb 5 19:11:49 2021 +0100
>>
>> And the other reason is the prototype platform_device_register_* looks like more surgery and ultimately more validation / potential for bugs.
>>
>> Since this driver is supposed to be moving to maintenance mode, I didn't want to do a more major rewrite of the probe() and remove() paths.
>>
>> ---
>> bod
>>
> 
> and.. I wanted to continue support sdm630/sdm660/msm8996/msm8998 without any additional effort to go finding power-domains and clocks which in those cases the existing compat= method actually does something useful.
>
> Also potentially other/new additions to venus which have xcoder specific PDs and clocks would logically want to specify those as we do for the above listed SoCs.

We can just keep a small function to grab these and assign as if they
were specified under the root node (check if video-encoder/video-decoder
both exist, grab the clocks for respective cores and continue normally).

My old series [1] should make it easier to tackle that, feel free to take
it over.

Konrad

[1] https://github.com/somainline/linux/commits/topic/mars





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