[PATCH v5, 00/15] Using component framework to support multi hardware decode

[yunfei.dong at mediatek.com]

Hi Ezequiel,

Thanks for your suggestion.

On Wed, 2021-08-18 at 11:11 -0300, Ezequiel Garcia wrote:
> +danvet
> 
> Hi,
> 
> On Tue, 10 Aug 2021 at 23:58, Yunfei Dong <yunfei.dong at mediatek.com>
> wrote:
> > 
> > This series adds support for multi hardware decode into mtk-vcodec, 
> > by first
> > adding component framework to manage each hardware information:
> > interrupt,
> > clock, register bases and power. Secondly add core thread to deal
> > with core
> > hardware message, at the same time, add msg queue for different
> > hardware
> > share messages. Lastly, the architecture of different specs are not
> > the same,
> > using specs type to separate them.
> > 
> 
> I don't think it's a good idea to introduce the component API in the
> media subsystem. It doesn't seem to be maintained, IRC there's not
> even
> a maintainer for it, and it has some issues that were never
> addressed.
> 
> It would be really important to avoid it. Is it really needed in the
> first place?
> 
> Thanks,
> Ezequiel

For there are many hardware need to use, mt8192 is three and mt8195 is
five. Maybe need more to be used in the feature.

Each hardware has independent clk/power/iommu port/irq.
Use component interface in prob to get each component's information.
Just enable the hardware when need to use it, very convenient and
simple.

I found that there are many modules use component to manage hardware
information, such as iommu and drm etc.

Do you have any other suggestion for this architecture?

Thanks
Yunfei Dong