lkml.org 
[lkml]   [2020]   [May]   [18]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
Date
SubjectRe: [PATCH v3 2/7] dt-bindings: mdf: ti,j721e-syscon.yaml: Add J721e system controller
On Mon, May 18, 2020 at 8:51 AM Rob Herring <robh@kernel.org> wrote:
>
> On Fri, May 08, 2020 at 11:29:32AM +0300, Roger Quadros wrote:
> > Add DT binding schema for J721e system controller.
> >
> > Signed-off-by: Roger Quadros <rogerq@ti.com>
> > ---
> > .../bindings/mfd/ti,j721e-syscon.yaml | 69 +++++++++++++++++++
> > 1 file changed, 69 insertions(+)
> > create mode 100644 Documentation/devicetree/bindings/mfd/ti,j721e-syscon.yaml
>
> Use the compatible string for filename.
>
> >
> > diff --git a/Documentation/devicetree/bindings/mfd/ti,j721e-syscon.yaml b/Documentation/devicetree/bindings/mfd/ti,j721e-syscon.yaml
> > new file mode 100644
> > index 000000000000..e832fb43f884
> > --- /dev/null
> > +++ b/Documentation/devicetree/bindings/mfd/ti,j721e-syscon.yaml
> > @@ -0,0 +1,69 @@
> > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> > +# Copyright (C) 2020 Texas Instruments Incorporated - http://www.ti.com/
> > +%YAML 1.2
> > +---
> > +$id: http://devicetree.org/schemas/mfd/ti,j721e-syscon.yaml#
> > +$schema: http://devicetree.org/meta-schemas/core.yaml#
> > +
> > +title: TI J721e System Controller Registers R/W Device Tree Bindings
> > +
> > +description: |
> > + This represents the Control Module registers (CTRL_MMR0) on the SoC.
> > + System controller node represents a register region containing a set
> > + of miscellaneous registers. The registers are not cohesive enough to
> > + represent as any specific type of device. The typical use-case is
> > + for some other node's driver, or platform-specific code, to acquire
> > + a reference to the syscon node (e.g. by phandle, node path, or
> > + search using a specific compatible value), interrogate the node (or
> > + associated OS driver) to determine the location of the registers,
> > + and access the registers directly.
> > +
> > +maintainers:
> > + - Kishon Vijay Abraham I <kishon@ti.com>
> > + - Roger Quadros <rogerq@ti.com
> > +
> > +allOf:
> > + - $ref: "syscon.yaml#"
>
> Drop this as it is not needed.
>
> > +
> > +properties:
> > + compatible:
> > + anyOf:
> > + - items:
> > + - enum:
> > + - ti,j721e-system-controller
> > +
> > + - const: syscon
>
> What about simple-mfd?
>
> > +
> > + - contains:
> > + const: syscon
> > + additionalItems: true
>
> Should be dropped.
>
> You are going to need a 'select' entry or this will match on any syscon
> or simple-mfd node:
>
> select:
> properties:
> compatible:
> contains:
> const: ti,j721e-system-controller
> required:
> - compatible

Sorry, forget the 'select' part (still should drop the 2nd clause).
I'd found a bug in what handles this automatically, but it's only when
you have 'simple-mfd' and not 'syscon'.

Rob

\
 
 \ /
  Last update: 2020-05-19 01:15    [W:0.081 / U:0.080 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site