[PATCH v10 1/6] dt-bindings: display: Add support for Intel KeemBay Display

Sam Ravnborg sam at ravnborg.org
Mon Nov 2 18:04:06 UTC 2020


Hi Neil.

> >>>>> ---
> >>>>>  .../bindings/display/intel,keembay-display.yaml    | 75 ++++++++++++++++++++++
> >>>>>  1 file changed, 75 insertions(+)
> >>>>>  create mode 100644 Documentation/devicetree/bindings/display/intel,keembay-display.yaml
> >>>>>
> >>>>> diff --git a/Documentation/devicetree/bindings/display/intel,keembay-display.yaml b/Documentation/devicetree/bindings/display/intel,keembay-display.yaml
> >>>>> new file mode 100644
> >>>>> index 0000000..8a8effe
> >>>>> --- /dev/null
> >>>>> +++ b/Documentation/devicetree/bindings/display/intel,keembay-display.yaml
> >>>>> @@ -0,0 +1,75 @@
> >>>>> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> >>>>> +%YAML 1.2
> >>>>> +---
> >>>>> +$id: http://devicetree.org/schemas/display/intel,keembay-display.yaml#
> >>>>> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> >>>>> +
> >>>>> +title: Devicetree bindings for Intel Keem Bay display controller
> >>>>> +
> >>>>> +maintainers:
> >>>>> +  - Anitha Chrisanthus <anitha.chrisanthus at intel.com>
> >>>>> +  - Edmond J Dea <edmund.j.dea at intel.com>
> >>>>> +
> >>>>> +properties:
> >>>>> +  compatible:
> >>>>> +    const: intel,keembay-display
> >>>>> +
> >>>>> +  reg:
> >>>>> +    items:
> >>>>> +      - description: LCD registers range
> >>>>> +      - description: Msscam registers range
> >>>>> +
> >>>
> >>> Indeed the split is much better, but as you replied on http://lore.kernel.org/r/BY5PR11MB41827DE07436DD0454E24E6E8C0A0@BY5PR11MB4182.namprd11.prod.outlook.com
> >>> the msscam seems to be shared with the camera subsystem block, if this is the case it should be handled.
> >>>
> >>> If it's a shared register block, it could be defined as a "syscon" used by both subsystems.
> >>
> >> I think I got it now.
> >>
> >> msscam is used to enable clocks both for the display driver and the
> >> mipi-dsi part.
> > 
> > If just clocks, then the msscam should be a clock provider possibly.
> > If not, then the below looks right.

I am feeling a little clueless here - sorry.

Can you help with any example that does this?

Everything I looked up in bindings/clock/ had a "#clock-cells" which is
not relevant for msscam - or so I think at least.


	Sam


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