linux-kernel - RE: [PATCH 5.2 v2 2/2] dt-binding: edac: add NPCM ECC documentation

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Message-ID: <0c90f9376c0e425c9a226379f7e5bfad@quantatw.com>
Date:   Tue, 9 Jul 2019 09:48:59 +0000
From:   George Hung (洪忠敬) <George.Hung@...ntatw.com>
To:     Rob Herring <robh@...nel.org>, George Hung <ghung.quanta@...il.com>
CC:     Mark Rutland <mark.rutland@....com>,
        Linus Walleij <linus.walleij@...aro.org>,
        Tali Perry <tali.perry1@...il.com>,
        "paulmck@...ux.ibm.com" <paulmck@...ux.ibm.com>,
        "wak@...gle.com" <wak@...gle.com>,
        "benjaminfair@...gle.com" <benjaminfair@...gle.com>,
        "openbmc@...ts.ozlabs.org" <openbmc@...ts.ozlabs.org>,
        "tomer.maimon@...oton.com" <tomer.maimon@...oton.com>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        Borislav Petkov <bp@...en8.de>,
        "Avi.Fishman@...oton.com" <Avi.Fishman@...oton.com>,
        "Jonathan Cameron" <Jonathan.Cameron@...wei.com>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        linux-edac <linux-edac@...r.kernel.org>,
        "Patrick Venture" <venture@...gle.com>,
        Nicolas Ferre <nicolas.ferre@...rochip.com>,
        linux-kernel <linux-kernel@...r.kernel.org>,
        James Morse <james.morse@....com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        "davem@...emloft.net" <davem@...emloft.net>
Subject: RE: [PATCH 5.2 v2 2/2] dt-binding: edac: add NPCM ECC documentation

Hi Rob,


> -----Original Message-----
> From: openbmc
> [mailto:openbmc-bounces+george.hung=quantatw.com@...ts.ozlabs.org] On
> Behalf Of Rob Herring
> Sent: Tuesday, July 09, 2019 9:41 AM
> To: George Hung
> Cc: Mark Rutland; Linus Walleij; Tali Perry; paulmck@...ux.ibm.com;
> wak@...gle.com; benjaminfair@...gle.com; openbmc@...ts.ozlabs.org;
> tomer.maimon@...oton.com; devicetree@...r.kernel.org; Borislav Petkov;
> Avi.Fishman@...oton.com; Jonathan Cameron; Mauro Carvalho Chehab;
> linux-edac; Patrick Venture; Nicolas Ferre; linux-kernel; James Morse; Greg
> Kroah-Hartman; davem@...emloft.net
> Subject: Re: [PATCH 5.2 v2 2/2] dt-binding: edac: add NPCM ECC
> documentation
> 
> On Wed, Jun 05, 2019 at 10:12:53PM +0800, George Hung wrote:
> > Add device tree documentation for Nuvoton BMC ECC
> >
> > Signed-off-by: George Hung <ghung.quanta@...il.com>
> > ---
> >  .../bindings/edac/npcm7xx-sdram-edac.txt        | 17
> +++++++++++++++++
> >  1 file changed, 17 insertions(+)
> >  create mode 100644
> > Documentation/devicetree/bindings/edac/npcm7xx-sdram-edac.txt
> >
> > diff --git
> > a/Documentation/devicetree/bindings/edac/npcm7xx-sdram-edac.txt
> > b/Documentation/devicetree/bindings/edac/npcm7xx-sdram-edac.txt
> > new file mode 100644
> > index 000000000000..dd4dac59a5bd
> > --- /dev/null
> > +++ b/Documentation/devicetree/bindings/edac/npcm7xx-sdram-edac.txt
> > @@ -0,0 +1,17 @@
> > +Nuvoton NPCM7xx SoC EDAC device driver
> > +
> > +The Nuvoton NPCM7xx SoC supports DDR4 memory with/without ECC and
> the
> > +driver uses the EDAC framework to implement the ECC detection and
> corrtection.
> > +
> > +Required properties:
> > +- compatible:	should be "nuvoton,npcm7xx-sdram-edac"
> 
> Is this for the whole SDRAM controller or just ECC related registers?
> In the former case, the naming should just reflect the block name and not a
> Linux term.

Sorry for confused naming, the address space is for the whole memory controller registers indeed,
but the driver only uses the ECC related registers.
Should I change the name to "nuvoton,npcm7xx-edac" ?

> 
> > +- reg:		Memory controller register set should be <0xf0824000
> 0x1000>
> > +- interrupts:	should be MC interrupt #25
> > +
> > +Example:
> > +
> > +	mc: memory-controller@...24000 {
> > +		compatible = "nuvoton,npcm7xx-sdram-edac";
> > +		reg = <0xf0824000 0x1000>;
> > +		interrupts = <0 25 4>;
> > +	};
> > --
> > 2.21.0
> >