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Subject[PATCH v2 4/6] dt-bindings: snps,dw-apb-ssi: Add sparx5, SPI slave snps,rx-sample-delay-ns and microchip,spi-interface2 properties.
Date
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 "snps,rx-sample-delay-ns" for SPI slaves

- Add the property "microchip,spi-interface2" for SPI slaves

Signed-off-by: Lars Povlsen <lars.povlsen@microchip.com>
---
.../bindings/spi/snps,dw-apb-ssi.yaml | 24 +++++++++++++++++++
1 file changed, 24 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..5bca4f0493bdf 100644
--- a/Documentation/devicetree/bindings/spi/snps,dw-apb-ssi.yaml
+++ b/Documentation/devicetree/bindings/spi/snps,dw-apb-ssi.yaml
@@ -36,6 +36,11 @@ properties:
- mscc,ocelot-spi
- mscc,jaguar2-spi
- const: snps,dw-apb-ssi
+ - description: Microchip Sparx5 SoC SPI Controller
+ items:
+ - enum:
+ - microchip,sparx5-spi
+ - const: snps,dw-apb-ssi
- description: Amazon Alpine SPI Controller
const: amazon,alpine-dw-apb-ssi
- description: Renesas RZ/N1 SPI Controller
@@ -107,6 +112,19 @@ patternProperties:
spi-tx-bus-width:
const: 1

+ snps,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.
+ $ref: /schemas/types.yaml#/definitions/uint32
+
+ microchip,spi-interface2:
+ description: indicates the spi device is placed on a special
+ controller interface of the "microchip,sparx5-spi" controller.
+ type: boolean
+
unevaluatedProperties: false

required:
@@ -129,5 +147,11 @@ examples:
num-cs = <2>;
cs-gpios = <&gpio0 13 0>,
<&gpio0 14 0>;
+ spi-flash@1 {
+ compatible = "spi-nand";
+ reg = <1>;
+ microchip,spi-interface2;
+ snps,rx-sample-delay-ns = <7>;
+ };
};
...
--
2.27.0
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