[PATCH v9 1/4] dt-bindings: display: xlnx: Add ZynqMP DP subsystem bindings

[Laurent Pinchart]

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 <hyun.kwon at xilinx.com>
> >
> > 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 <hyun.kwon at xilinx.com>
> > Signed-off-by: Laurent Pinchart <laurent.pinchart at ideasonboard.com>
> > ---
> > 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 at 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.

-- 
Regards,

Laurent Pinchart