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 15:45:52 +0100
From:   Lee Jones <lee.jones@...aro.org>
To:     Rob Herring <robh@...nel.org>
Cc:     Paul Kocialkowski <paul.kocialkowski@...tlin.com>,
        linux-gpio@...r.kernel.org, devicetree@...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

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?

> Reviewed-by: Rob Herring <robh@...nel.org>

-- 
Lee Jones [李琼斯]
Linaro Services Technical Lead
Linaro.org │ Open source software for ARM SoCs
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