Miquel, what do you think about Rob's suggestion below?
On Mon, Mar 03, 2025 at 08:00:21AM -0600, Rob Herring wrote:
> On Wed, Feb 26, 2025 at 12:45:17PM -0600, Rob Herring (Arm) wrote:
> >
> > On Wed, 26 Feb 2025 18:01:41 +0100, J. Neuschäfer wrote:
> > > Formalize the binding already supported by the fsl_elbc_nand.c driver
> > > and used in several device trees in arch/powerpc/boot/dts/.
> > >
> > > raw-nand-chip.yaml is referenced in order to accommodate situations in
> > > which the ECC parameters settings are set in the device tree. One such
> > > example is in arch/powerpc/boot/dts/turris1x.dts:
> > >
> > > /* MT29F2G08ABAEAWP:E NAND */
> > > nand@1,0 {
> > > compatible = "fsl,p2020-fcm-nand", "fsl,elbc-fcm-nand";
> > > reg = <0x1 0x0 0x00040000>;
> > > nand-ecc-mode = "soft";
> > > nand-ecc-algo = "bch";
> > >
> > > partitions { ... };
> > > };
> > >
> > > Reviewed-by: Frank Li <Frank.Li@xxxxxxx>
> > > Signed-off-by: J. Neuschäfer <j.ne@xxxxxxxxxx>
> > > ---
> > >
> > > V3:
> > > - remove unnecessary #address/size-cells from nand node in example
> > > - add Frank Li's review tag
> > > - add missing end of document marker (...)
> > > - explain choice to reference raw-nand-chip.yaml
> > >
> > > V2:
> > > - split out from fsl,elbc binding patch
> > > - constrain #address-cells and #size-cells
> > > - add a general description
> > > - use unevaluatedProperties=false instead of additionalProperties=false
> > > - fix property order to comply with dts coding style
> > > - include raw-nand-chip.yaml instead of nand-chip.yaml
> > > ---
> > > .../devicetree/bindings/mtd/fsl,elbc-fcm-nand.yaml | 68 ++++++++++++++++++++++
> > > 1 file changed, 68 insertions(+)
> > >
> >
> > My bot found errors running 'make dt_binding_check' on your patch:
> >
> > yamllint warnings/errors:
> >
> > dtschema/dtc warnings/errors:
> > /builds/robherring/dt-review-ci/linux/Documentation/devicetree/bindings/mtd/fsl,elbc-fcm-nand.example.dtb: nand@1,0: $nodename:0: 'nand@1,0' does not match '^nand@[a-f0-9]$'
> > from schema $id: http://devicetree.org/schemas/mtd/fsl,elbc-fcm-nand.yaml#
>
> Drop the unit address in raw-nand-chip.yaml. So:
>
> properties:
> $nodename:
> pattern: "^nand@"
>
^^^
Best Regards,
J. Neuschäfer
