[PATCH v2 07/12] ARM: imx6q: add config-on-boot gpios

Shawn Guo shawn.guo at linaro.org
Tue May 22 14:42:26 EST 2012


On Tue, May 22, 2012 at 06:20:16AM +0200, Marek Vasut wrote:
> Dear Shawn Guo,
> 
> > On 22 May 2012 11:25, Marek Vasut <marex at denx.de> wrote:
> > > Dear Shawn Guo,
> > > 
> > >> Apart from my comments below, we really need to know Rob and Grant's
> > >> opinion on this.
> > > 
> > > Hm ... so why don't you actually write per-board driver ? :-) That'd
> > > handle every single board very well, you'd configure the GPIOs there,
> > > every single additional necessary thing that has to be configured would
> > > sink there too etc.
> > 
> > I'm not completely sure about how the per-board driver looks like
> > exactly.  Can you have some code demonstrating it?
> 
> Well such per-board driver would handle the board-specific init, like 
> configuring the hub GPIO (as Richard has to do so on mx6q) or flick some other 
> GPIOs, configure registers etc.
> 
So when you say driver, you just meant a C file like imx6q-sabrelite.c
containing a number of init functions to be called by mach-imx6q.c?

-- 
Regards,
Shawn


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