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To:     "'Rob Herring'" <robh@kernel.org>
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        "'Andy Gross'" <agross@kernel.org>,
        "'Bjorn Andersson'" <bjorn.andersson@linaro.org>,
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        "'Mark Rutland'" <mark.rutland@arm.com>,
        "'Lorenzo Pieralisi'" <lorenzo.pieralisi@arm.com>,
        "'Andrew Murray'" <amurray@thegoodpenguin.co.uk>,
        "'Philipp Zabel'" <p.zabel@pengutronix.de>,
        <linux-arm-msm@vger.kernel.org>, <linux-pci@vger.kernel.org>,
        <devicetree@vger.kernel.org>, <linux-kernel@vger.kernel.org>
References: <20200320183455.21311-1-ansuelsmth@gmail.com> <20200320183455.21311-11-ansuelsmth@gmail.com> <20200331173348.GA28253@bogus>
In-Reply-To: <20200331173348.GA28253@bogus>
Subject: R: [PATCH 11/12] devicetree: bindings: pci: add force_gen1 for qcom,pcie
Date:   Wed, 1 Apr 2020 14:09:09 +0200
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> -----Messaggio originale-----
> Da: Rob Herring <robh@kernel.org>
> Inviato: marted=EC 31 marzo 2020 19:34
> A: Ansuel Smith <ansuelsmth@gmail.com>
> Cc: Stanimir Varbanov <svarbanov@mm-sol.com>; Andy Gross
> <agross@kernel.org>; Bjorn Andersson <bjorn.andersson@linaro.org>;
> Bjorn Helgaas <bhelgaas@google.com>; Mark Rutland
> <mark.rutland@arm.com>; Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>;
> Andrew Murray <amurray@thegoodpenguin.co.uk>; Philipp Zabel
> <p.zabel@pengutronix.de>; linux-arm-msm@vger.kernel.org; linux-
> pci@vger.kernel.org; devicetree@vger.kernel.org; linux-
> kernel@vger.kernel.org
> Oggetto: Re: [PATCH 11/12] devicetree: bindings: pci: add force_gen1 =
for
> qcom,pcie
>=20
> On Fri, Mar 20, 2020 at 07:34:53PM +0100, Ansuel Smith wrote:
> > Document force_gen1 optional definition to limit pcie
> > line to GEN1 speed
> >
> > Signed-off-by: Ansuel Smith <ansuelsmth@gmail.com>
> > ---
> >  Documentation/devicetree/bindings/pci/qcom,pcie.txt | 5 +++++
> >  1 file changed, 5 insertions(+)
> >
> > diff --git a/Documentation/devicetree/bindings/pci/qcom,pcie.txt
> b/Documentation/devicetree/bindings/pci/qcom,pcie.txt
> > index 8c1d014f37b0..766876465c42 100644
> > --- a/Documentation/devicetree/bindings/pci/qcom,pcie.txt
> > +++ b/Documentation/devicetree/bindings/pci/qcom,pcie.txt
> > @@ -260,6 +260,11 @@
> >  	Definition: If not defined is 0. In ipq806x is set to 7. In newer
> >  				revision (v2.0) the offset is zero.
> >
> > +- force_gen1:
> > +	Usage: optional
> > +	Value type: <u32>
> > +	Definition: Set 1 to force the pcie line to GEN1
> > +
>=20
> I believe we have a standard property 'link-speed' for this purpose.
>=20

Yes this will be dropped in v2

> >  * Example for ipq/apq8064
> >  	pcie@1b500000 {
> >  		compatible =3D "qcom,pcie-apq8064", "qcom,pcie-ipq8064",
> "snps,dw-pcie";
> > --
> > 2.25.1
> >