Re: [PATCH 8/9] ARM: at91/dt: add new at91rm9200ek_mmc board

[Nicolas Ferre]

On 20/11/2013 18:27, Jean-Christophe PLAGNIOL-VILLARD :
> On 17:31 Wed 20 Nov     , boris brezillon wrote:
> > On 20/11/2013 16:02, Jean-Christophe PLAGNIOL-VILLARD wrote:
> > > On 14:37 Wed 28 Aug     , Boris BREZILLON wrote:
> > > > Add a new at91rm9200ek_mmc board (based on at91rm9200ek board) which enables
> > > > mmc0/slot0.
> > > no for multiple dts
> > >
> > > this need to handle at user space level
> >
> > You mean, by controlling the regulator using the sysfs interface, or
> > by loading
> > only the appropriate driver ?
> load the partial dts via userspace

Right, but Jean-Christophe, we know that DT fragments are not available 
in mainline yet (even if the effort is ongoing). So what should we do in 
the meantime?

> > What if both drivers are loaded (or not compiled as modules) ?
> > This will lead to one device being unusable (and maybe even worst)...
> this will never be the case

Can you please elaborate? It is a bit frustrating to have to ask you 
again and again to explain more your thoughts...

Bye,

> Best Regards,
> J.
> > Please explain what you had in mind ?
> >
> > > Best Regards,
> > > J.
> > > > Signed-off-by: Boris BREZILLON <b.brezillon@xxxxxxxxxxx>
> > > > ---
> > > >   arch/arm/boot/dts/at91rm9200ek_mmc.dts |   23 +++++++++++++++++++++++
> > > >   1 file changed, 23 insertions(+)
> > > >   create mode 100644 arch/arm/boot/dts/at91rm9200ek_mmc.dts
> > > >
> > > > diff --git a/arch/arm/boot/dts/at91rm9200ek_mmc.dts b/arch/arm/boot/dts/at91rm9200ek_mmc.dts
> > > > new file mode 100644
> > > > index 0000000..c87a861
> > > > --- /dev/null
> > > > +++ b/arch/arm/boot/dts/at91rm9200ek_mmc.dts
> > > > @@ -0,0 +1,23 @@
> > > > +/*
> > > > + * at91rm9200ek.dts - Device Tree file for Atmel AT91RM9200 evaluation kit with
> > > > + *                    an MMC slot
> > > > + *
> > > > + *  Copyright (C) 2013 Boris BREZILLON <b.brezillon@xxxxxxxxxxx>
> > > > + *
> > > > + * Licensed under GPLv2 only
> > > > + */
> > > > +/dts-v1/;
> > > > +#include "at91rm9200ek.dts"
> > > > +
> > > > +/ {
> > > > +	model = "Atmel AT91RM9200 evaluation kit with MMC slot";
> > > > +	compatible = "atmel,at91rm9200ek-mmc", "atmel,at91rm9200ek", "atmel,at91rm9200";
> > > > +
> > > > +	ahb {
> > > > +		apb {
> > > > +			mmc0: mmc@fffb4000 {
> > > > +				status = "okay";
> > > > +			};
> > > > +		};
> > > > +	};
> > > > +};
> > > > --
> > > > 1.7.9.5


--
Nicolas Ferre
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/