On Thu, Sep 26, 2019 at 9:23 AM Laurent Pinchart
<[email protected]> wrote:
>
> Hi Rob,
>
> On Thu, Sep 26, 2019 at 09:15:01AM -0500, Rob Herring wrote:
> > On Wed, Sep 25, 2019 at 6:56 PM Laurent Pinchart wrote:
> > >
> > > From: Hyun Kwon <[email protected]>
> > >
> > > The bindings describe the ZynqMP DP subsystem. They don't support the
> > > interface with the programmable logic (FPGA) or audio yet.
> > >
> > > Signed-off-by: Hyun Kwon <[email protected]>
> > > Signed-off-by: Laurent Pinchart <[email protected]>
> > > ---
> > > Changes since v8:
> > >
> > > - Convert to yaml
> > > - Rename aclk to dp_apb_clk
> >
> > /builds/robherring/linux-dt-review/Documentation/devicetree/bindings/display/xlnx/xlnx,zynqmp-dpsub.example.dt.yaml:
> > display@fd4a0000: clock-names:2: 'dp_vtc_pixel_clk_in' was expected
>
> If you allow me to steal a bit of your brain time, could you help me
> expressing the clocks constraint ?
>
> clocks:
> description:
> The AXI clock and at least one video clock are mandatory, the audio
> clock
> optional.
> minItems: 2
> maxItems: 4
> items:
> - description: AXI clock
> - description: Audio clock
> - description: Non-live video clock (from Processing System)
> - description: Live video clock (from Programmable Logic)
> clock-names:
> minItems: 2
> maxItems: 4
> items:
> - const: dp_apb_clk
> - const: dp_aud_clk
> - const: dp_vtc_pixel_clk_in
> - const: dp_live_video_in_clk
>
> dp_apb_clk is required, dp_aud_clk is optional, and at least one of
> dp_vtc_pixel_clk_in and dp_live_video_in_clk is required.
I'm hoping people's inability to express the schema will prevent
complicated ones like this in the first place...
clock-names:
oneOf:
- minItems: 3
maxItems: 4
items:
- const: dp_apb_clk
- const: dp_aud_clk
- enum: [ dp_vtc_pixel_clk_in, dp_live_video_in_clk ]
- enum: [ dp_vtc_pixel_clk_in, dp_live_video_in_clk ]
- minItems: 2
maxItems: 3
items:
- const: dp_apb_clk
- enum: [ dp_vtc_pixel_clk_in, dp_live_video_in_clk ]
- enum: [ dp_vtc_pixel_clk_in, dp_live_video_in_clk ]
Strictly speaking, that leaves items clocks wrong, but 'description'
doesn't do anything. So I'd just leave it as is.
Rob
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