Re: [PATCH v4 1/9] dt-bindings: mtd: ingenic: Add compatible strings for JZ4740 and JZ4725B

[Paul Cercueil]

Hi Miquel,

On Mon, Mar 4, 2019 at 10:45 AM, Miquel Raynal 
<miquel.raynal@xxxxxxxxxxx> wrote:
> Hi Paul,
>
> Paul Cercueil <paul@xxxxxxxxxxxxxxx <mailto:paul@xxxxxxxxxxxxxxx>> 
> wrote on Sat,  9 Feb 2019 16:22:57
> -0300:
>
> >  Add compatible strings to probe the jz4780-nand and jz4780-bch 
> > drivers
> >  from devicetree on the JZ4725B and JZ4740 SoCs from Ingenic.
> >
> >  Signed-off-by: Paul Cercueil <paul@xxxxxxxxxxxxxxx 
> > <mailto:paul@xxxxxxxxxxxxxxx>>
> >  ---
> >
> >  Changes:
> >
> >  v2: - Change 'ingenic,jz4725b-nand' compatible string to
> >        'ingenic,jz4740-nand' to reflect driver change
> >      - Add 'ingenic,jz4740-bch' compatible string
> >      - Document 'ingenic,oob-layout' property
> >
> >  v3: - Removed 'ingenic,oob-layout' property
> >      - Update compatible strings to what the driver supports
> >
> >  v4: No change
> >
> >   Documentation/devicetree/bindings/mtd/ingenic,jz4780-nand.txt | 10 
> > ++++++++--
> >   1 file changed, 8 insertions(+), 2 deletions(-)
> >
> >  diff --git 
> > a/Documentation/devicetree/bindings/mtd/ingenic,jz4780-nand.txt 
> > b/Documentation/devicetree/bindings/mtd/ingenic,jz4780-nand.txt
> >  index 29ea5853ca91..a5b940f18bf6 100644
> >  --- a/Documentation/devicetree/bindings/mtd/ingenic,jz4780-nand.txt
> >  +++ b/Documentation/devicetree/bindings/mtd/ingenic,jz4780-nand.txt
> >  @@ -6,7 +6,10 @@ memory-controllers/ingenic,jz4780-nemc.txt), and 
> > thus NAND device nodes must
> >   be children of the NEMC node.
> >
> >   Required NAND controller device properties:
> >  -- compatible: Should be set to "ingenic,jz4780-nand".
> >  +- compatible: Should be one of:
> >  +  * ingenic,jz4740-nand
> >  +  * ingenic,jz4725b-nand
> >  +  * ingenic,jz4780-nand
>
> Wouldn't "-nand-controller" suffix be better? Of course in the driver
> you should still check for jz4780-nand.

So I would be compatible with:
* ingenic,jz4740-nand-controller
* ingenic,jz4725b-nand-controller
* ingenic,jz4780-nand
?

> >   - reg: For each bank with a NAND chip attached, should specify a 
> > bank number,
> >     an offset of 0 and a size of 0x1000000 (i.e. the whole NEMC 
> > bank).
> >
> >  @@ -72,7 +75,10 @@ NAND devices. The following is a description of 
> > the device properties for a
> >   BCH controller.
> >
> >   Required BCH properties:
> >  -- compatible: Should be set to "ingenic,jz4780-bch".
> >  +- compatible: Should be one of:
> >  +  * ingenic,jz4740-ecc
> >  +  * ingenic,jz4725b-bch
> >  +  * ingenic,jz4780-bch
> >   - reg: Should specify the BCH controller registers location and 
> > length.
> >   - clocks: Clock for the BCH controller.
>
> Thanks,
> Miquèl