Re: [PATCH 6/7] dt-bindings: clock: xilinx: describe whether dynamic reconfig is enabled

Harry Austen
2024-07-25T17:53:29Z

On Mon Jul 22, 2024 at 6:13 PM BST, Conor Dooley wrote:
> On Sat, Jul 20, 2024 at 12:01:58PM +0000, Harry Austen wrote:
> > Xilinx clocking wizard IP core's dynamic reconfiguration support is
> > optionally enabled at build time. Add a devicetree boolean property to
> > describe whether the hardware supports this feature or not.
> >
> > Signed-off-by: Harry Austen <hpausten@protonmail.com>
> > ---
> > .../devicetree/bindings/clock/xlnx,clocking-wizard.yaml | 7 +++++++
> > 1 file changed, 7 insertions(+)
> >
> > diff --git a/Documentation/devicetree/bindings/clock/xlnx,clocking-wizard.yaml b/Documentation/devicetree/bindings/clock/xlnx,clocking-wizard.yaml
> > index 4609bb56b06b5..890aeebf6f375 100644
> > --- a/Documentation/devicetree/bindings/clock/xlnx,clocking-wizard.yaml
> > +++ b/Documentation/devicetree/bindings/clock/xlnx,clocking-wizard.yaml
> > @@ -40,6 +40,12 @@ properties:
> > - const: s_axi_aclk
> >
> >
> > + xlnx,dynamic-reconfig:
> > + type: boolean
>
> The type here should be "flag" not boolean, boolean can be set to
> "false" and what you're likely doing is just checking for the property
> being present. "flag" doesn't allow false.

That sounds like exactly what I want. Will update to "flag" in v2.

Thanks!

>
> > + description:
> > + Indicate whether the core has been configured with support for dynamic
> > + runtime reconfguration of the clocking primitive MMCM/PLL.
> > +
> > xlnx,speed-grade:
> > $ref: /schemas/types.yaml#/definitions/uint32
> > enum: [1, 2, 3]
> > @@ -88,6 +94,7 @@ examples:
> > compatible = "xlnx,clocking-wizard-v6.0";
> > reg = <0xb0000000 0x10000>;
> > #clock-cells = <1>;
> > + xlnx,dynamic-reconfig;
> > xlnx,speed-grade = <1>;
> > xlnx,nr-outputs = <6>;
> > clock-names = "clk_in1", "s_axi_aclk";
> > --
> > 2.45.2
> >
> >