Re: [RFC PATCH 1/2] dt-bindings: mtd: Add Cavium SOCs NAND bindings

[Rob Herring <robh-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>]

On Mon, Apr 3, 2017 at 9:38 AM, Jan Glauber
<jan.glauber-M3mlKVOIwJVv6pq1l3V1OdBPR1lH4CV8@public.gmane.org> wrote:
> On Mon, Apr 03, 2017 at 08:29:37AM -0500, Rob Herring wrote:
>> On Mon, Mar 27, 2017 at 06:05:23PM +0200, Jan Glauber wrote:
>> > Add device tree binding description for Cavium SOC nand flash controller.
>> >
>> > CC: Rob Herring <robh+dt-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
>> > CC: Mark Rutland <mark.rutland-5wv7dgnIgG8@public.gmane.org>
>> > CC: devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
>> >
>> > Signed-off-by: Jan Glauber <jglauber-YGCgFSpz5w/QT0dZR+AlfA@public.gmane.org>
>> > ---
>> >  .../devicetree/bindings/mtd/cavium_nand.txt        | 32 ++++++++++++++++++++++
>> >  1 file changed, 32 insertions(+)
>> >  create mode 100644 Documentation/devicetree/bindings/mtd/cavium_nand.txt
>> >
>> > diff --git a/Documentation/devicetree/bindings/mtd/cavium_nand.txt b/Documentation/devicetree/bindings/mtd/cavium_nand.txt
>> > new file mode 100644
>> > index 0000000..4698d1f
>> > --- /dev/null
>> > +++ b/Documentation/devicetree/bindings/mtd/cavium_nand.txt
>> > @@ -0,0 +1,32 @@
>> > +* Cavium NAND controller
>> > +
>> > +Required properties:
>> > +
>> > +- compatible:              should be "cavium,cn8xxx-nand"
>>
>> Don't use wildcards in compatible strings. For PCI devices, this should
>> be based on the PCI vendor and device IDs.
>>
>
> Is there a syntax for compatible PCI devices? I'm afraid I've not seen
> this yet, can you give an example?

www.o3one.org/hwdocs/openfirmware/pci_supplement_2_1.pdf

> Most of Cavium's devices are PCI devices, we just added the compatible
> as convenience and usually it is not parsed.

Linux doesn't parse it, but it's still required in the binding.

Rob
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