linux-kernel - Re: [PATCH v3 2/5] dt-bindings: mfd: Document the Xylon LogiCVC multi-function device

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Date:   Fri, 4 Oct 2019 14:12:22 -0400
From:   Paul Kocialkowski <paul.kocialkowski@...tlin.com>
To:     Rob Herring <robh@...nel.org>
Cc:     Lee Jones <lee.jones@...aro.org>,
        "open list:GPIO SUBSYSTEM" <linux-gpio@...r.kernel.org>,
        devicetree@...r.kernel.org,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Linus Walleij <linus.walleij@...aro.org>,
        Bartosz Golaszewski <bgolaszewski@...libre.com>,
        Mark Rutland <mark.rutland@....com>,
        Thomas Petazzoni <thomas.petazzoni@...tlin.com>
Subject: Re: [PATCH v3 2/5] dt-bindings: mfd: Document the Xylon LogiCVC
 multi-function device

Hi,

On Fri 04 Oct 19, 11:09, Rob Herring wrote:
> On Fri, Oct 4, 2019 at 9:45 AM Lee Jones <lee.jones@...aro.org> wrote:
> >
> > On Fri, 27 Sep 2019, Rob Herring wrote:
> >
> > > On Fri, Sep 27, 2019 at 12:04:04PM +0200, Paul Kocialkowski wrote:
> > > > The LogiCVC is a display engine which also exposes GPIO functionality.
> > > > For this reason, it is described as a multi-function device that is expected
> > > > to provide register access to its children nodes for gpio and display.
> > > >
> > > > Signed-off-by: Paul Kocialkowski <paul.kocialkowski@...tlin.com>
> > > > ---
> > > >  .../bindings/mfd/xylon,logicvc.yaml           | 50 +++++++++++++++++++
> > > >  1 file changed, 50 insertions(+)
> > > >  create mode 100644 Documentation/devicetree/bindings/mfd/xylon,logicvc.yaml
> > > >
> > > > diff --git a/Documentation/devicetree/bindings/mfd/xylon,logicvc.yaml b/Documentation/devicetree/bindings/mfd/xylon,logicvc.yaml
> > > > new file mode 100644
> > > > index 000000000000..abc9937506e0
> > > > --- /dev/null
> > > > +++ b/Documentation/devicetree/bindings/mfd/xylon,logicvc.yaml
> > > > @@ -0,0 +1,50 @@
> > > > +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
> > > > +# Copyright 2019 Bootlin
> > > > +%YAML 1.2
> > > > +---
> > > > +$id: "http://devicetree.org/schemas/mfd/xylon,logicvc.yaml#"
> > > > +$schema: "http://devicetree.org/meta-schemas/core.yaml#"
> > > > +
> > > > +title: Xylon LogiCVC multi-function device
> > > > +
> > > > +maintainers:
> > > > +  - Paul Kocialkowski <paul.kocialkowski@...tlin.com>
> > > > +
> > > > +description: |
> > > > +  The LogiCVC is a display controller that also contains a GPIO controller.
> > > > +  As a result, a multi-function device is exposed as parent of the display
> > > > +  and GPIO blocks.
> > > > +
> > > > +properties:
> > > > +  compatible:
> > > > +    items:
> > > > +      - enum:
> > > > +          - xylon,logicvc-3.02.a
> > > > +      - const: syscon
> > > > +      - const: simple-mfd
> > > > +
> > > > +  reg:
> > > > +    maxItems: 1
> > > > +
> > > > +select:
> > > > +  properties:
> > > > +    compatible:
> > > > +      contains:
> > > > +        enum:
> > > > +          - xylon,logicvc-3.02.a
> > >
> > > I've seen a couple of these with 'syscon' today, so I fixed the schema
> > > tool to just exclude 'syscon' and 'simple-mfd' from the generated
> > > 'select'. So you can drop select now.
> >
> > Does this need to happen before this patch can be applied?
> 
> Drop the 'select'? Yes that should happen first.

I'll definitely respin the series for a v3 soon so no worries, I'll get rid
of it.

Cheers,

Paul

-- 
Paul Kocialkowski, Bootlin
Embedded Linux and kernel engineering
https://bootlin.com

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