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-rw-r--r--dts/Bindings/spi/spi-controller.yaml29
1 files changed, 23 insertions, 6 deletions
diff --git a/dts/Bindings/spi/spi-controller.yaml b/dts/Bindings/spi/spi-controller.yaml
index ebb4d5f1cf..524f6fe8c2 100644
--- a/dts/Bindings/spi/spi-controller.yaml
+++ b/dts/Bindings/spi/spi-controller.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/spi/spi-controller.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: SPI Controller Generic Binding
+title: SPI Controller Common Properties
maintainers:
- Mark Brown <broonie@kernel.org>
@@ -17,7 +17,7 @@ description: |
properties:
$nodename:
- pattern: "^spi(@.*|-[0-9a-f])*$"
+ pattern: "^spi(@.*|-([0-9]|[1-9][0-9]+))?$"
"#address-cells":
enum: [0, 1]
@@ -94,6 +94,23 @@ patternProperties:
"^.*@[0-9a-f]+$":
type: object
$ref: spi-peripheral-props.yaml
+ additionalProperties: true
+
+ properties:
+ spi-3wire:
+ $ref: /schemas/types.yaml#/definitions/flag
+ description:
+ The device requires 3-wire mode.
+
+ spi-cpha:
+ $ref: /schemas/types.yaml#/definitions/flag
+ description:
+ The device requires shifted clock phase (CPHA) mode.
+
+ spi-cpol:
+ $ref: /schemas/types.yaml#/definitions/flag
+ description:
+ The device requires inverse clock polarity (CPOL) mode.
required:
- compatible
@@ -139,9 +156,9 @@ examples:
};
flash@2 {
- compatible = "jedec,spi-nor";
- spi-max-frequency = <50000000>;
- reg = <2>, <3>;
- stacked-memories = /bits/ 64 <0x10000000 0x10000000>;
+ compatible = "jedec,spi-nor";
+ spi-max-frequency = <50000000>;
+ reg = <2>, <3>;
+ stacked-memories = /bits/ 64 <0x10000000 0x10000000>;
};
};