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Date: Tue, 01 Oct 2019 17:09:06 -0500 From: Rob Herring <robh@...nel.org> To: vincent.cheng.xh@...esas.com Cc: mark.rutland@....com, richardcochran@...il.com, devicetree@...r.kernel.org, netdev@...r.kernel.org, linux-kernel@...r.kernel.org Subject: Re: [PATCH 1/2] dt-bindings: ptp: Add binding doc for IDT ClockMatrix based PTP clock On Wed, Sep 18, 2019 at 04:06:37PM -0400, vincent.cheng.xh@...esas.com wrote: > From: Vincent Cheng <vincent.cheng.xh@...esas.com> > > Add device tree binding doc for the IDT ClockMatrix PTP clock driver. Bindings are for h/w, not drivers... > > Signed-off-by: Vincent Cheng <vincent.cheng.xh@...esas.com> > --- > Documentation/devicetree/bindings/ptp/ptp-idtcm.txt | 15 +++++++++++++++ > 1 file changed, 15 insertions(+) > create mode 100644 Documentation/devicetree/bindings/ptp/ptp-idtcm.txt Please make this a DT schema. > > diff --git a/Documentation/devicetree/bindings/ptp/ptp-idtcm.txt b/Documentation/devicetree/bindings/ptp/ptp-idtcm.txt > new file mode 100644 > index 0000000..4eaa34d > --- /dev/null > +++ b/Documentation/devicetree/bindings/ptp/ptp-idtcm.txt > @@ -0,0 +1,15 @@ > +* IDT ClockMatrix (TM) PTP clock > + > +Required properties: > + > + - compatible Should be "idt,8a3400x-ptp" for System Synchronizer > + Should be "idt,8a3401x-ptp" for Port Synchronizer > + Should be "idt,8a3404x-ptp" for Universal Frequency Translator (UFT) If PTP is the only function of the chip, you don't need to append '-ptp'. What's the 'x' for? We generally don't use wildcards in compatible strings. > + - reg I2C slave address of the device > + > +Example: > + > + phc@5b { > + compatible = "idt,8a3400x-ptp"; > + reg = <0x5b>; > + }; > -- > 2.7.4 >
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