Re: [PATCH v1 3/5] ARM: imx28evk: add mmc dt support

[Sascha Hauer]

On Tue, Mar 13, 2012 at 09:39:30AM -0500, Rob Herring wrote:
> On 03/13/2012 03:47 AM, Dong Aisheng wrote:
> > From: Dong Aisheng <dong.aisheng@xxxxxxxxxx>
> > 
> > Signed-off-by: Dong Aisheng <dong.aisheng@xxxxxxxxxx>
> > ---
> >  arch/arm/boot/dts/imx28-evk.dts |   14 ++++++++++++++
> >  arch/arm/boot/dts/imx28.dtsi    |   33 +++++++++++++++++++++++++++++++++
> >  arch/arm/mach-mxs/imx28-dt.c    |    2 ++
> >  3 files changed, 49 insertions(+), 0 deletions(-)
> 
> snip
> 
> > diff --git a/arch/arm/mach-mxs/imx28-dt.c b/arch/arm/mach-mxs/imx28-dt.c
> > index 78d1129..429b88e 100644
> > --- a/arch/arm/mach-mxs/imx28-dt.c
> > +++ b/arch/arm/mach-mxs/imx28-dt.c
> > @@ -23,6 +23,8 @@ static const struct of_dev_auxdata imx28_auxdata_lookup[] __initconst = {
> >  	OF_DEV_AUXDATA("arm,pl011", MX28_DUART_BASE_ADDR, "duart", NULL),
> >  	OF_DEV_AUXDATA("fsl,imx28-fec", MX28_ENET_MAC0_BASE_ADDR, "imx28-fec.0", NULL),
> >  	OF_DEV_AUXDATA("fsl,imx28-fec", MX28_ENET_MAC1_BASE_ADDR, "imx28-fec.1", NULL),
> > +	OF_DEV_AUXDATA("fsl,imx28-mmc", MX28_SSP0_BASE_ADDR, "mxs-mmc.0", NULL),
> > +	OF_DEV_AUXDATA("fsl,imx28-mmc", MX28_SSP1_BASE_ADDR, "mxs-mmc.1", NULL),
> 
> Why is this needed?

These are needed for the drivers which have still the mxs-mmc.* names
to find their clocks. Alternatively we could also add the appropriate
clocks to the clock file. Don't know if that's better though.

Sascha

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