The AXI SPI Engine has support for hardware offloading capabilities.
There can be up to 32 offload instances per SPI controller, so the
bindings limit the value accordingly.
Signed-off-by: David Lechner <dlechner@xxxxxxxxxxxx>
---
v2 changes:
This is basically a new patch. It partially replaces "dt-bindings: iio:
offload: add binding for PWM/DMA triggered buffer".
The controller no longer has an offloads object node and the
spi-offloads property is now a standard SPI peripheral property.
---
.../devicetree/bindings/spi/adi,axi-spi-engine.yaml | 14 ++++++++++++++
1 file changed, 14 insertions(+)
diff --git a/Documentation/devicetree/bindings/spi/adi,axi-spi-engine.yaml b/Documentation/devicetree/bindings/spi/adi,axi-spi-engine.yaml
index d48faa42d025..c0668aab8b2a 100644
--- a/Documentation/devicetree/bindings/spi/adi,axi-spi-engine.yaml
+++ b/Documentation/devicetree/bindings/spi/adi,axi-spi-engine.yaml
@@ -41,6 +41,20 @@ properties:
- const: s_axi_aclk
- const: spi_clk
+patternProperties:
+ "^.*@[0-9a-f]+$":
+ type: object
+ $ref: spi-peripheral-props.yaml
+ additionalProperties: true
+ properties:
+ spi-offloads:
+ description:
+ An array of 1 or more offload instance numbers assigned to this
+ peripheral.
+ items:
+ minimum: 0
+ maximum: 31
+
required:
- compatible
- reg
--
2.43.2
