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Diffstat (limited to 'Documentation/devicetree/bindings/spi/arm,pl022-peripheral-props.yaml')
| -rw-r--r-- | Documentation/devicetree/bindings/spi/arm,pl022-peripheral-props.yaml | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/spi/arm,pl022-peripheral-props.yaml b/Documentation/devicetree/bindings/spi/arm,pl022-peripheral-props.yaml new file mode 100644 index 000000000000..bb8b6863b109 --- /dev/null +++ b/Documentation/devicetree/bindings/spi/arm,pl022-peripheral-props.yaml @@ -0,0 +1,61 @@ +# SPDX-License-Identifier: GPL-2.0 +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/spi/arm,pl022-peripheral-props.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Peripheral-specific properties for Arm PL022 SPI controller + +maintainers: + - Linus Walleij <linus.walleij@linaro.org> + +select: false + +properties: + pl022,interface: + description: SPI interface type + $ref: /schemas/types.yaml#/definitions/uint32 + enum: + - 0 # SPI + - 1 # Texas Instruments Synchronous Serial Frame Format + - 2 # Microwire (Half Duplex) + + pl022,com-mode: + description: Specifies the transfer mode + $ref: /schemas/types.yaml#/definitions/uint32 + enum: + - 0 # interrupt mode + - 1 # polling mode + - 2 # DMA mode + default: 1 + + pl022,rx-level-trig: + description: Rx FIFO watermark level + $ref: /schemas/types.yaml#/definitions/uint32 + minimum: 0 + maximum: 4 + + pl022,tx-level-trig: + description: Tx FIFO watermark level + $ref: /schemas/types.yaml#/definitions/uint32 + minimum: 0 + maximum: 4 + + pl022,ctrl-len: + description: Microwire interface - Control length + $ref: /schemas/types.yaml#/definitions/uint32 + minimum: 0x03 + maximum: 0x1f + + pl022,wait-state: + description: Microwire interface - Wait state + $ref: /schemas/types.yaml#/definitions/uint32 + enum: [0, 1] + + pl022,duplex: + description: Microwire interface - Full/Half duplex + $ref: /schemas/types.yaml#/definitions/uint32 + enum: [0, 1] + +additionalProperties: true +... |