[linux-sunxi] Re: [PATCH 4/4] simplefb: add clock handling code

[Thierry Reding]

On Tue, Aug 26, 2014 at 03:22:07PM +0200, Maxime Ripard wrote:
> On Tue, Aug 26, 2014 at 10:40:27AM +0200, Thierry Reding wrote:
> > On Mon, Aug 25, 2014 at 05:18:22PM +0200, Luc Verhaegen wrote:
> > > On Mon, Aug 25, 2014 at 05:12:58PM +0200, Thierry Reding wrote:
> > > > 
> > > > Out of curiosity, how does this work in practice? How does the
> > > > bootloader create this entry? Does it scan the DT to see which clocks
> > > > the real hardware device references and then simply copies them to the
> > > > simplefb node?
> > > > 
> > > > Thierry
> > > 
> > > https://www.mail-archive.com/linux-sunxi@googlegroups.com/msg06619.html
> > 
> > That looks like a royal pain. Again, I think it'd be much simpler (but
> > not less code, unfortunately) to do this on a per-resource basis. That
> > way these low-level firmware drivers in the kernel can stay trivial,
> > keeping the real complexity where they belong: in hardware-specific
> > drivers such as DRM/KMS.
> 
> So we have to write a DRM/KMS driver in order to have display working
> while waiting for a DRM/KMS driver to be worked on? Come on...

Perhaps you should go and read this thread again. That's not at all what
I've been saying.

Thierry
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