Re: [PATCH 2/8] drm/loongson: Introduce a drm bridge driver for it66121 HDMI transmitter

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On Mon, Oct 30, 2023 at 10:39:32PM +0800, Sui Jingfeng wrote:
> Hi,
> 
> 
> On 2023/10/30 21:39, Maxime Ripard wrote:
> > On Mon, Oct 30, 2023 at 09:25:50PM +0800, Sui Jingfeng wrote:
> > > I think my approach provide a solution, while still keep the bridges drivers
> > > to a modular at the same time. Despite simple, it indeed solve the problem.
> > > It simple because of explicit control of the loading order by myself, not by
> > > rely on the framework or something else (say component)
> > > 
> > > It is not totally duplicating, I have rewrite part of them. You can compare
> > > to see what I'm changed. It is just that it66162 was upstream-ed earlier than
> > > our solution. But I also have write display drivers for lt8618 and lt8619
> > > completely by myself.
> > > 
> > > Even though our local drm bridges driver will not be able to enjoy the updates.
> > > We will accept such a results(or pain). I can maintain our local drm bridges
> > > drivers by myself. Sorry, on this technique point, we will not follow your idea.
> > > I'm sure that my approach is toward to right direction for our device at now.
> > > If someone invent a better solution to handle this problem, which make the
> > > various drm bridges drivers usable out of box, then I will follow and cooperate
> > > to test.
> > As far as I'm concerned, the two options are either you reuse the
> > already existing driver or this series isn't merged.
> 
> It's not that I don't want to use thealready existing display bridge driver,
> It is just that it is not suitable for non DT-based system to use.

The code is there, you can modify it to make it suitable for non
DT-based systems.

> Our system using UEFI+ACPI, beside the I2C, there also have GPIO HPD
> interrupt hardware. ACPI-based system and DT-based system have
> different way to use(request) the hardware. Can you feel my words?

Not really, no. There's plenty of drivers supporting both ACPI and DT
based systems.

> If the variousdisplay bridge drivers are really ready to use

Nobody said they would be ready to use. You are expected to make them
work for you though.

> why I have to refuse?

I mean, you can totally refuse to do whatever we ask. Just like we can
also totally refuse to merge these patches.

Maxime

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