Re: [PATCH 0/2] Associate ddc adapters with connectors
From: Daniel Vetter
Date: Tue Jun 25 2019 - 10:20:38 EST
On Tue, Jun 25, 2019 at 03:10:32PM +0100, Russell King - ARM Linux admin wrote:
> On Tue, Jun 25, 2019 at 04:07:55PM +0200, Daniel Vetter wrote:
> > Otherwise I like this. Biggest problem I'm seeing here is rolling this out
> > everywhere, this is a lot of work. And without widespread adoptions it's
> > not terribly useful for userspace.
> There will be cases where it's not possible, because the I2C bus is
> hidden behind a chip that doesn't give you direct access to the DDC
Oh sure, plus lots of connectors where there's just not ddc bus at all.
But if we only roll this out for a handful of drivers it's also not great,
that's what I meant. Looking at
$ git grep drm_do_get_edid
there's only very few drivers where the ddc bus is hidden. There's a lot
more where it's not, and I think a big series to tackle those would serve
extremely well to make a case for this sysfs link.
Software Engineer, Intel Corporation