linux-kernel - Re: [PATCH v6 2/2] dt-bindings: mtd: Document Macronix raw NAND controller bindings

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Date:   Thu, 1 Aug 2019 17:17:29 +0800
From:   masonccyang@...c.com.tw
To:     "Boris Brezillon" <boris.brezillon@...labora.com>
Cc:     anders.roxell@...aro.org, bbrezillon@...nel.org,
        christophe.kerello@...com, computersforpeace@...il.com,
        devicetree@...r.kernel.org, dwmw2@...radead.org,
        juliensu@...c.com.tw, lee.jones@...aro.org, liang.yang@...ogic.com,
        linux-kernel@...r.kernel.org, linux-mtd@...ts.infradead.org,
        marek.vasut@...il.com, mark.rutland@....com,
        miquel.raynal@...tlin.com, paul@...pouillou.net,
        paul.burton@...s.com, richard@....at, robh+dt@...nel.org,
        stefan@...er.ch, vigneshr@...com
Subject: Re: [PATCH v6 2/2] dt-bindings: mtd: Document Macronix raw NAND controller
 bindings

Hi Boris,

> On Thu,  1 Aug 2019 11:55:10 +0800
> Mason Yang <masonccyang@...c.com.tw> wrote:
> 
> > Document the bindings used by the Macronix raw NAND controller.
> > 
> > Signed-off-by: Mason Yang <masonccyang@...c.com.tw>
> > ---
> >  Documentation/devicetree/bindings/mtd/mxic-nand.txt | 19 
+++++++++++++++++++
> >  1 file changed, 19 insertions(+)
> >  create mode 100644 
Documentation/devicetree/bindings/mtd/mxic-nand.txt
> > 
> > diff --git a/Documentation/devicetree/bindings/mtd/mxic-nand.txt b/
> Documentation/devicetree/bindings/mtd/mxic-nand.txt
> > new file mode 100644
> > index 0000000..de37d60
> > --- /dev/null
> > +++ b/Documentation/devicetree/bindings/mtd/mxic-nand.txt
> > @@ -0,0 +1,19 @@
> > +Macronix Raw NAND Controller Device Tree Bindings
> > +-------------------------------------------------
> > +
> > +Required properties:
> > +- compatible: should be "mxicy,multi-itfc-v009-nand-morph"
> > +- reg: should contain 1 entry for the registers
> > +- interrupts: interrupt line connected to this raw NAND controller
> > +- clock-names: should contain "ps", "send" and "send_dly"
> > +- clocks: should contain 3 phandles for the "ps", "send" and
> > +    "send_dly" clocks
> > +
> > +Example:
> > +
> > +   nand: nand-controller@...30000 {
> > +      compatible = "mxicy,multi-itfc-v009-nand-morph";
> > +      reg = <0x43c30000 0x10000>;
> > +      clocks = <&clkwizard 0>, <&clkwizard 1>, <&clkc 15>;
> > +      clock-names = "send", "send_dly", "ps";
> 
> You should have subnodes describing the NAND connected to the
> controller (see [1]).
> 
> [1]
https://elixir.bootlin.com/linux/v5.3-rc2/source/Documentation/devicetree/
> bindings/mtd/nand-controller.yaml#L131
> 
> > +   };
> 

Do you mean to add patternProperties ?

                 nand: nand-controller@...30000 {
                                 compatible = 
"mxicy,multi-itfc-v009-nand-morph";
                                 reg = <0x43c30000 0x10000>;
                                 clocks = <&clkwizard 0>, <&clkwizard 1>, 
<&clkc 15>;
                                 clock-names = "send", "send_dly", "ps";

+                               nand@0 {
+
+                               };
                 };

something like that.

thanks & best regards,
Mason

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CONFIDENTIALITY NOTE:

This e-mail and any attachments may contain confidential information and/or personal data, which is protected by applicable laws. Please be reminded that duplication, disclosure, distribution, or use of this e-mail (and/or its attachments) or any part thereof is prohibited. If you receive this e-mail in error, please notify us immediately and delete this mail as well as its attachment(s) from your system. In addition, please be informed that collection, processing, and/or use of personal data is prohibited unless expressly permitted by personal data protection laws. Thank you for your attention and cooperation.

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