RE: [PATCH V1 RESEND 2/3] bindings/perf/imx-ddr: update compatible string

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> -----Original Message-----
> From: John Garry <john.garry@xxxxxxxxxx>
> Sent: 2020年7月15日 19:04
> To: Joakim Zhang <qiangqing.zhang@xxxxxxx>; will@xxxxxxxxxx;
> mark.rutland@xxxxxxx; robh+dt@xxxxxxxxxx; shawnguo@xxxxxxxxxx
> Cc: dl-linux-imx <linux-imx@xxxxxxx>; linux-arm-kernel@xxxxxxxxxxxxxxxxxxx;
> devicetree@xxxxxxxxxxxxxxx; linux-kernel@xxxxxxxxxxxxxxx
> Subject: Re: [PATCH V1 RESEND 2/3] bindings/perf/imx-ddr: update compatible
> string
> 
> On 12/05/2020 08:31, Joakim Zhang wrote:
> > Update compatible string according to driver change.`
> >
> > Signed-off-by: Joakim Zhang <qiangqing.zhang@xxxxxxx>
> > ---
> >   Documentation/devicetree/bindings/perf/fsl-imx-ddr.txt | 4 +++-
> >   1 file changed, 3 insertions(+), 1 deletion(-)
> >
> > diff --git a/Documentation/devicetree/bindings/perf/fsl-imx-ddr.txt
> > b/Documentation/devicetree/bindings/perf/fsl-imx-ddr.txt
> > index 7822a806ea0a..b27a1d4fec78 100644
> > --- a/Documentation/devicetree/bindings/perf/fsl-imx-ddr.txt
> > +++ b/Documentation/devicetree/bindings/perf/fsl-imx-ddr.txt
> > @@ -4,7 +4,9 @@ Required properties:
> >
> 
> Hi Joakim,
> 
> >   - compatible: should be one of:
> >   	"fsl,imx8-ddr-pmu"
> > -	"fsl,imx8m-ddr-pmu"
> > +	"fsl,imx8mq-ddr-pmu"
> > +	"fsl,imx8mm-ddr-pmu"
> 
> I noticed that some of the compat strings being added are used in imx dtsi files
> today:
> 
> john@localhost:~/linux> git grep "fsl,imx8mm-ddr-pmu"
> arch/arm64/boot/dts/freescale/imx8mm.dtsi:  compatible =
> "fsl,imx8mm-ddr-pmu", "fsl,imx8m-ddr-pmu";
> 
> Any specific reason why they are not described in the dt bindings already?
> 
> I don't follow dt so much anymore, so don't know the policies.

Hi John,

What I did is not standard, any compat string in dts file should be described in the dt bindings. I will keep in mind.

Best Regards,
Joakim Zhang
> > +	"fsl,imx8mn-ddr-pmu"
> 
> Thanks,
> John





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