On Fri, Jul 24, 2020 at 01:14:02PM +0200, Lars Povlsen wrote:
> 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: Lars Povlsen <lars.povlsen@xxxxxxxxxxxxx>
> ---
> .../bindings/spi/snps,dw-apb-ssi.yaml | 21 +++++++++++++++++++
> 1 file changed, 21 insertions(+)
>
> diff --git a/Documentation/devicetree/bindings/spi/snps,dw-apb-ssi.yaml b/Documentation/devicetree/bindings/spi/snps,dw-apb-ssi.yaml
> index c62cbe79f00dd..c0adaad1aa695 100644
> --- a/Documentation/devicetree/bindings/spi/snps,dw-apb-ssi.yaml
> +++ b/Documentation/devicetree/bindings/spi/snps,dw-apb-ssi.yaml
> @@ -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:
> + 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. Default value is 0. See below.
> + $ref: /schemas/types.yaml#/definitions/uint32
Don't need a type for properties with unit suffixes.
Also, add:
'default: 0'
> +
> patternProperties:
> "^.*@[0-9a-f]+$":
> 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>;
> + };
> };
> ...
> --
> 2.27.0
>
