From mboxrd@z Thu Jan 1 00:00:00 1970 From: Maxime Ripard Subject: Re: [PATCH v2 5/5] ARM: dts: sunxi: Use new sun7i-a20-mmc compatible on sun7i and newer Date: Mon, 22 Aug 2016 09:54:54 +0200 Message-ID: <20160822075454.GB7104@lukather> References: <1469888748-26085-1-git-send-email-hdegoede@redhat.com> <1469888748-26085-6-git-send-email-hdegoede@redhat.com> <9b6ed836-27ff-c8c8-d886-d86c787605fc@arm.com> Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============4043782391963838261==" Return-path: In-Reply-To: <9b6ed836-27ff-c8c8-d886-d86c787605fc@arm.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=m.gmane.org@lists.infradead.org To: Andre Przywara Cc: devicetree , Ulf Hansson , linux-mmc@vger.kernel.org, Hans de Goede , Chen-Yu Tsai , Icenowy Zheng , linux-arm-kernel@lists.infradead.org List-Id: devicetree@vger.kernel.org --===============4043782391963838261== Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="QTprm0S8XgL7H0Dt" Content-Disposition: inline --QTprm0S8XgL7H0Dt Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Mon, Aug 01, 2016 at 02:11:09PM +0100, Andre Przywara wrote: > Hi Hans, >=20 > On 30/07/16 15:25, Hans de Goede wrote: > > Use the new sun7i-a20-mmc compatible for the mmc controllers on sun7i > > and newer. > >=20 > > Signed-off-by: Hans de Goede > > --- > > Changes in v2: > > -New patch in v2 of this patch-set > > --- > > arch/arm/boot/dts/sun6i-a31.dtsi | 8 ++++---- > > arch/arm/boot/dts/sun7i-a20.dtsi | 8 ++++---- > > arch/arm/boot/dts/sun8i-a23-a33.dtsi | 6 +++--- > > arch/arm/boot/dts/sun8i-h3.dtsi | 6 +++--- > > 4 files changed, 14 insertions(+), 14 deletions(-) > >=20 > > diff --git a/arch/arm/boot/dts/sun6i-a31.dtsi b/arch/arm/boot/dts/sun6i= -a31.dtsi > > index 1867af2..0d24f10 100644 > > --- a/arch/arm/boot/dts/sun6i-a31.dtsi > > +++ b/arch/arm/boot/dts/sun6i-a31.dtsi > > @@ -469,7 +469,7 @@ > > }; > > =20 > > mmc0: mmc@01c0f000 { > > - compatible =3D "allwinner,sun5i-a13-mmc"; > > + compatible =3D "allwinner,sun7i-a20-mmc"; >=20 > But that breaks systems with newer DTs on older kernels, which do not > know about sun7i-a20-mmc. That's not backward compatibility. That's the forward one, and that has never been something we supported. See https://www.kernel.org/doc/Documentation/devicetree/bindings/ABI.txt Maxime --=20 Maxime Ripard, Free Electrons Embedded Linux and Kernel engineering http://free-electrons.com --QTprm0S8XgL7H0Dt Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIcBAEBAgAGBQJXuq/OAAoJEBx+YmzsjxAg31oP/AgDZi5biao/9jRsTmrrjdTj ULa5IfngA4XziercfYkuLqh4rFeGMjsFxRCP8unUHnDvbrzv6KaGHZkwX8z6zal2 PNS2qPyjLry3mnAVzO9PMwZnhbewKfJvI+4T2Q/O8OMwlpOv7gPFquQeNTmLClBq 53gYxXz5YM8zp2cjsjS9vlV4t2otwzkS+HGg89AEG7b/lpZDsW/h3b7OltK+TdoU 0fsZc25At9+wx4cGcwHJC8BVa21uRl1Sny4NdlX/AoJoQKXvf4b0v1mx9TM4l80o KIs4Fjh4/3pJ6DfHKkU8wIQGIxju1iaW5qOxFaCXRugDQTQ0teUodf2ZITduAlDO MljH2g9lv3P8siwUZnyFnITggSp/aKnWCTtU4vLxar4ulUMU2+c4NctjxT7Dl8gL KL6haamfYrvqriUaSWEnXllW4Z5JCzXBi8mGJeNSG4DrR9FbcZH9HxK6sT9abfrh DpIsPiwUdBs22iHHB1yKZtkIrvtthJZRZM8d9URFdPYrueGf+kiFteOht6ncJk+V HuakdspKIVblTmCUovDK7Ocaka2n6Ai+wXheplK+XAOXaLgqYpCC4wf10cokpiss AigwXAZ20s3su87L7moqquCIOQiS60PClWsfyCulQoAPdr/YzAzTpkMgKNm+DNqQ O2fj7yYF1zU5eHA2/GOv =pqkd -----END PGP SIGNATURE----- --QTprm0S8XgL7H0Dt-- --===============4043782391963838261== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel --===============4043782391963838261==--