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 "mux-controls" for the above compatible string
- Add the property "snps,rx-sample-delay-ns" for SPI slaves
Signed-off-by: Lars Povlsen <lars.povlsen@xxxxxxxxxxxxx>
---
.../bindings/spi/snps,dw-apb-ssi.yaml | 28 +++++++++++++++++++
1 file changed, 28 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..9d9208391fae3 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 +95,19 @@ properties:
- const: tx
- const: rx
+if:
+ properties:
+ compatible:
+ contains:
+ const: microchip,sparx5-spi
+
+then:
+ properties:
+ mux-controls:
+ description: A mux controller node for selecting SPI bus interface.
+ maxItems: 1
+ $ref: '/schemas/types.yaml#/definitions/phandle'
+
patternProperties:
"^.*@[0-9a-f]+$":
type: object
@@ -107,6 +122,14 @@ 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
+
unevaluatedProperties: false
required:
@@ -129,5 +152,10 @@ examples:
num-cs = <2>;
cs-gpios = <&gpio0 13 0>,
<&gpio0 14 0>;
+ spi-flash@1 {
+ compatible = "spi-nand";
+ reg = <1>;
+ snps,rx-sample-delay-ns = <7>;
+ };
};
...
--
2.27.0
