drivers: can: Add dts bindings for CAN

This commit adds generic device tree bindings for can devices.

Signed-off-by: Alexander Wachter <alexander.wachter@student.tugraz.at>
This commit is contained in:
Alexander Wachter 2018-05-03 10:54:50 +02:00 committed by Carles Cufí
commit 50f8296baa
3 changed files with 121 additions and 0 deletions

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#
# Copyright (c) 2018 Alexander Wachter
#
# SPDX-License-Identifier: Apache-2.0
#
---
title: CAN Device Base Structure
id: can-device
version: 0.1
description: >
This binding gives the base structures for all can devices
parent:
bus: can
properties:
compatible:
type: string
category: required
description: compatible strings
reg:
type: array
description: register base address
generation: define
category: required
label:
type: string
category: required
description: Human readable string describing the device (used by Zephyr for API name)
generation: define
bus-speed:
type: int
category: required
description: bus spees in Baud/s
generation: define
...

36
dts/bindings/can/can.yaml Normal file
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---
title: CAN Base Structure
id: can
version: 0.1
description: >
This binding gives the base structures for all CAN devices
child:
bus: can
properties:
"#address-cells":
type: int
category: required
description: should be 1.
"#size-cells":
type: int
category: required
description: should be 0.
label:
type: string
category: required
description: Human readable string describing the device (used by Zephyr for API name)
generation: define
bus-speed:
type: int
category: required
description: bus spees in Baud/s
generation: define
pinctrl-\d+:
type: array
category: optional
description: pinmux information for RX, TX
generation: structure
...

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---
title: STM32 CAN
id: st,stm32-can
version: 0.1
description: >
This binding gives a base representation of the STM32 CAN controller
inherits:
!include can.yaml
properties:
compatible:
type: string
category: required
description: compatible strings
constraint: "st,stm32-can"
reg:
type: array
description: register base address
generation: define
category: required
interrupts:
type: array
category: required
description: required interrupts
generation: define
gpio-port:
type: string
category: required
description: gpio port name
generation: define
rx-pin:
type: string
category: required
description: rx pin name
generation: define
tx-pin:
type: string
category: required
description: tx pin name
generation: define
...