From mboxrd@z Thu Jan 1 00:00:00 1970 From: Liviu Dudau Subject: Re: [PATCH v2] PCI: add missing DT binding for linux,pci-domain property Date: Thu, 6 Nov 2014 15:40:50 +0000 Message-ID: <20141106154050.GW8916@e106497-lin.cambridge.arm.com> References: <1415287400-30426-1-git-send-email-l.stach@pengutronix.de> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: QUOTED-PRINTABLE Return-path: In-Reply-To: <1415287400-30426-1-git-send-email-l.stach@pengutronix.de> Content-Disposition: inline Sender: linux-pci-owner@vger.kernel.org To: Lucas Stach Cc: Rob Herring , Pawel Moll , Mark Rutland , Ian Campbell , Kumar Gala , "devicetree@vger.kernel.org" , Bjorn Helgaas , "linux-pci@vger.kernel.org" , Arnd Bergmann List-Id: devicetree@vger.kernel.org On Thu, Nov 06, 2014 at 03:23:20PM +0000, Lucas Stach wrote: > This property was added by 41e5c0f81d3e > (of/pci: Add pci_get_new_domain_nr() and of_get_pci_domain_nr()) > without the required binding documentation. As this property > will be supported by a number of host bridge drivers going forward, > add it to the common PCI binding doc. >=20 > Signed-off-by: Lucas Stach > --- > This is a non-critical fix, but may still qualify for 3.18-rc as > the property was added in this release cycle. >=20 > v2: > - emphasize that the property must be present and unique systemwide > if used > --- > Documentation/devicetree/bindings/pci/pci.txt | 11 +++++++++++ > 1 file changed, 11 insertions(+) >=20 > diff --git a/Documentation/devicetree/bindings/pci/pci.txt b/Document= ation/devicetree/bindings/pci/pci.txt > index 41aeed38926d..68c364e2f5e5 100644 > --- a/Documentation/devicetree/bindings/pci/pci.txt > +++ b/Documentation/devicetree/bindings/pci/pci.txt > @@ -7,3 +7,14 @@ And for the interrupt mapping part: > =20 > Open Firmware Recommended Practice: Interrupt Mapping > http://www.openfirmware.org/1275/practice/imap/imap0_9d.pdf > + > +Additionally to the properties specified in the above standards a ho= st bridge > +driver implementation may support the following properties: > + > +- linux,pci-domain: > + If present this property assigns a fixed PCI domain number to a h= ost bridge, > + otherwise an unstable (across boots) unique number will be assign= ed. > + It is required to either not set this property at all or set it f= or all > + host bridges in the system, otherwise potentially conflicting dom= ain numbers > + may be assigned to root buses behind different host bridges. The = domain > + number for each host bridge in the system must be unique. > --=20 > 2.1.1 >=20 >=20 Acked-by: Liviu Dudau Liviu --=20 =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D | I would like to | | fix the world, | | but they're not | | giving me the | \ source code! / --------------- =C2=AF\_(=E3=83=84)_/=C2=AF