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# Copyright (c) 2018, I-SENSE group of ICCS
# SPDX-License-Identifier: Apache-2.0
# Common fields for SPI devices
include: [base.yaml, power.yaml]
on-bus: spi
properties:
reg:
required: true
spi-max-frequency:
type: int
required: true
description: Maximum clock frequency of device's SPI interface in Hz
duplex:
type: int
default: 0
description: |
Duplex mode, full or half. By default it's always full duplex thus 0
as this is, by far, the most common mode.
Use the macros not the actual enum value, here is the concordance
list (see dt-bindings/spi/spi.h)
0 SPI_FULL_DUPLEX
2048 SPI_HALF_DUPLEX
enum:
- 0
- 2048
frame-format:
type: int
default: 0
description: |
Motorola or TI frame format. By default it's always Motorola's,
thus 0 as this is, by far, the most common format.
Use the macros not the actual enum value, here is the concordance
list (see dt-bindings/spi/spi.h)
0 SPI_FRAME_FORMAT_MOTOROLA
32768 SPI_FRAME_FORMAT_TI
enum:
- 0
- 32768