[PATCH 0/4] video: ARM CLCD: add support of an optional GPIO to enable panel

Russell King - ARM Linux linux at armlinux.org.uk
Mon Jan 2 06:22:28 PST 2017


On Fri, Dec 30, 2016 at 09:23:59AM +0100, Linus Walleij wrote:
> On Wed, Dec 21, 2016 at 4:27 AM, Vladimir Zapolskiy <vz at mleia.com> wrote:
> 
> > The changeset contains a number of cleanups, changed semantics of
> > init_panel() callback, which allows to simplify getting of panel
> > properties from panel device tree node, and a handling of optional
> > "enable-gpios" panel property, the latter is described in
> > display/panel/panel-dpi.txt device tree binding documentation, but
> > it has been unsupported by the ARM CLCD driver.
> >
> > Vladimir Zapolskiy (4):
> >   video: ARM CLCD: sort included headers out alphabetically
> >   video: ARM CLCD: use panel device node for panel initialization
> >   video: ARM CLCD: use panel device node for getting backlight and mode
> >   video: ARM CLCD: add support of an optional GPIO to enable panel
> 
> As you may have seen Tomi has stepped down as FBDEV maintainer and
> this subsystem is now orphaned.
> 
> I guess Andrew Morton merges patches for it in this case, he usually does.
> 
> But what we should actually do is create a new DRM driver for CLCD
> in drivers/gpu/drm/arm/clcd*
> 
> It's maybe not a small undertaking :(
> 
> But in case you're interested in the job, I will pitch in and test the result
> on all ARM reference designs plus Nomadik.

A DRM driver for it would probably be a good idea, but dealing with all
the weird and wonderful connection arrangements may not be that easy...

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