From: Marek Vasut <marex@denx.de>
Subject: Re: [PATCH 3/3] ARM: mxs: dts: Enable DCP for MXS
Date: Thu, 26 Sep 2013 14:08:35 +0200
Message-ID: <201309261408.35380.marex@denx.de>
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Cc: linux-crypto@vger.kernel.org,
	Fabio Estevam <fabio.estevam@freescale.com>,
	Herbert Xu <herbert@gondor.apana.org.au>,
	Shawn Guo <shawn.guo@linaro.org>,
	"David S. Miller" <davem@davemloft.net>,
	linux-arm-kernel@lists.infradead.org
To: Lothar =?iso-8859-1?q?Wa=DFmann?= <LW@karo-electronics.de>
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Dear Lothar Wa=DFmann,

> Hi,
>=20
> Marek Vasut writes:
> > Enable the DCP by default on both i.MX23 and i.MX28.
> >=20
> > Signed-off-by: Marek Vasut <marex@denx.de>
> > Cc: Herbert Xu <herbert@gondor.apana.org.au>
> > Cc: David S. Miller <davem@davemloft.net>
> > Cc: Fabio Estevam <fabio.estevam@freescale.com>
> > Cc: Shawn Guo <shawn.guo@linaro.org>
> > To: linux-crypto@vger.kernel.org
> > ---
> >=20
> >  arch/arm/boot/dts/imx23.dtsi | 4 +++-
> >  arch/arm/boot/dts/imx28.dtsi | 5 +++--
> >  2 files changed, 6 insertions(+), 3 deletions(-)
> >=20
> > diff --git a/arch/arm/boot/dts/imx23.dtsi b/arch/arm/boot/dts/imx23=
=2Edtsi
> > index 87faa6e..0630a9a 100644
> > --- a/arch/arm/boot/dts/imx23.dtsi
> > +++ b/arch/arm/boot/dts/imx23.dtsi
> > @@ -337,8 +337,10 @@
> >=20
> >  			};
> >  		=09
> >  			dcp@80028000 {
> >=20
> > +				compatible =3D "fsl,mxs-dcp";
> >=20
> >  				reg =3D <0x80028000 0x2000>;
> >=20
> > -				status =3D "disabled";
> > +				interrupts =3D <53 54>;
> > +				status =3D "okay";
> >=20
> >  			};
>=20
> AFAICT the policy seems to be that nodes, that are always enabled
> don't get a 'status' property at all.

This is new to me, thanks for letting me know!

As for the current DCP, please see my reply to Fabio in this thread.

Best regards,
Marek Vasut