Unverified Commit 5ce78f44 authored by Lars Povlsen's avatar Lars Povlsen Committed by Mark Brown
Browse files

dt-bindings: snps, dw-apb-ssi: Add sparx5 support, plus rx-sample-delay-ns property 



This has the following changes for the snps,dw-apb-ss DT bindings:

- Add "microchip,sparx5-spi" as the compatible for the Sparx5 SoC
  controller

- Add the property "rx-sample-delay-ns"

Signed-off-by: default avatarLars Povlsen <lars.povlsen@microchip.com>
Reviewed-by: default avatarRob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20200824203010.2033-5-lars.povlsen@microchip.com


Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent 53a09635

Documentation/devicetree/bindings/spi/snps,dw-apb-ssi.yaml

+21 −0
Original line number Diff line number Diff line
@@ -36,6 +36,8 @@ properties: 
              - mscc,ocelot-spi

              - mscc,jaguar2-spi

          - const: snps,dw-apb-ssi

      - description: Microchip Sparx5 SoC SPI Controller

        const: microchip,sparx5-spi

      - description: Amazon Alpine SPI Controller

        const: amazon,alpine-dw-apb-ssi

      - description: Renesas RZ/N1 SPI Controller
@@ -93,6 +95,12 @@ properties: 
      - const: tx

      - const: rx



  rx-sample-delay-ns:

    default: 0

    description: Default value of the rx-sample-delay-ns property.

      This value will be used if the property is not explicitly defined

      for a SPI slave device. See below.



patternProperties:

  "^.*@[0-9a-f]+$":

    type: object
@@ -107,6 +115,13 @@ patternProperties: 
      spi-tx-bus-width:

        const: 1



      rx-sample-delay-ns:

        description: SPI Rx sample delay offset, unit is nanoseconds.

          The delay from the default sample time before the actual

          sample of the rxd input signal occurs. The "rx_sample_delay"

          is an optional feature of the designware controller, and the

          upper limit is also subject to controller configuration.



unevaluatedProperties: false



required:
@@ -129,5 +144,11 @@ examples: 
      num-cs = <2>;

      cs-gpios = <&gpio0 13 0>,

                 <&gpio0 14 0>;

      rx-sample-delay-ns = <3>;

      spi-flash@1 {

        compatible = "spi-nand";

        reg = <1>;

        rx-sample-delay-ns = <7>;

      };

    };

...