[PATCH v2] Misc: ARM_CHAR_LCD: Permit the use of a driver on any ARM machine

[linux@arm.linux.org.uk (Russell King - ARM Linux)]

On Sun, Nov 18, 2012 at 03:49:26PM +0400, Alexander Shiyan wrote:
> > > arm-charlcd driver can be used on any ARM machine, so dependency of
> > > PLAT_VERSATILE is removed.
> > 
> > This needs a better explanation.  We know that it's used on ARMs
> > reference boards.  Which other platforms will be making use of this
> > driver?  Do these other boards implement the same interface, including
> > the presence of the interrupt?
> > 
> > I'd need to re-read the specs, but I think that the interface this
> > driver uses is provided by ARMs FPGA rather than the LCD module itself,
> > and re-use of this driver would need that IP to be implemented elsewhere.
> Additionally: But, you are right. This should be reviewed more accuracy for a
> support for other machines, so please drop this patch.

What would be nice to see is a driver library for these LCD modules which
can then be hooked into whatever interface a platform presents, and come
up with some kind of solution to that where the platform interface can be
represented in DT form.