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 c62cbe79f00d..c79c8a167c46 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:
+ 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>;
+ };
};
...
--
2.27.0
