Commit 1b5a78e6 authored by Oleksij Rempel's avatar Oleksij Rempel Committed by Marc Kleine-Budde

dt-binding: can: mcp25xxfd: document device tree bindings

This patch adds the device-tree binding documentation for the Microchip
MCP25xxFD SPI CAN controller family.
Signed-off-by: default avatarOleksij Rempel <o.rempel@pengutronix.de>
Signed-off-by: default avatarMarc Kleine-Budde <mkl@pengutronix.de>
Link: https://lore.kernel.org/r/20200918172536.2074504-2-mkl@pengutronix.de
parent 728fc9ff
# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/net/can/microchip,mcp25xxfd.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title:
Microchip MCP2517FD and MCP2518FD stand-alone CAN controller device tree
bindings
maintainers:
- Marc Kleine-Budde <mkl@pengutronix.de>
properties:
compatible:
oneOf:
- const: microchip,mcp2517fd
description: for MCP2517FD
- const: microchip,mcp2518fd
description: for MCP2518FD
- const: microchip,mcp25xxfd
description: to autodetect chip variant
reg:
maxItems: 1
interrupts-extended:
maxItems: 1
clocks:
maxItems: 1
vdd-supply:
description: Regulator that powers the CAN controller.
maxItems: 1
xceiver-supply:
description: Regulator that powers the CAN transceiver.
maxItems: 1
microchip,rx-int-gpios:
description:
GPIO phandle of GPIO connected to to INT1 pin of the MCP25XXFD, which
signals a pending RX interrupt.
maxItems: 1
spi-max-frequency:
description:
Must be half or less of "clocks" frequency.
maximum: 20000000
required:
- compatible
- reg
- interrupts-extended
- clocks
examples:
- |
#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/interrupt-controller/irq.h>
spi0 {
#address-cells = <1>;
#size-cells = <0>;
can@0 {
compatible = "microchip,mcp25xxfd";
reg = <0>;
clocks = <&can0_osc>;
pinctrl-names = "default";
pinctrl-0 = <&can0_pins>;
spi-max-frequency = <20000000>;
interrupts-extended = <&gpio 13 IRQ_TYPE_LEVEL_LOW>;
microchip,rx-int-gpios = <&gpio 27 GPIO_ACTIVE_LOW>;
vdd-supply = <&reg5v0>;
xceiver-supply = <&reg5v0>;
};
};
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