tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/net/can/microchip,mcp251xfd.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title:
8 Microchip MCP2517FD and MCP2518FD stand-alone CAN controller device tree
9 bindings
10
11maintainers:
12 - Marc Kleine-Budde <mkl@pengutronix.de>
13
14properties:
15 compatible:
16 oneOf:
17 - const: microchip,mcp2517fd
18 description: for MCP2517FD
19 - const: microchip,mcp2518fd
20 description: for MCP2518FD
21 - const: microchip,mcp251xfd
22 description: to autodetect chip variant
23
24 reg:
25 maxItems: 1
26
27 interrupts:
28 maxItems: 1
29
30 clocks:
31 maxItems: 1
32
33 vdd-supply:
34 description: Regulator that powers the CAN controller.
35
36 xceiver-supply:
37 description: Regulator that powers the CAN transceiver.
38
39 microchip,rx-int-gpios:
40 description:
41 GPIO phandle of GPIO connected to to INT1 pin of the MCP251XFD, which
42 signals a pending RX interrupt.
43 maxItems: 1
44
45 spi-max-frequency:
46 description:
47 Must be half or less of "clocks" frequency.
48 maximum: 20000000
49
50required:
51 - compatible
52 - reg
53 - interrupts
54 - clocks
55
56additionalProperties: false
57
58examples:
59 - |
60 #include <dt-bindings/gpio/gpio.h>
61 #include <dt-bindings/interrupt-controller/irq.h>
62
63 spi0 {
64 #address-cells = <1>;
65 #size-cells = <0>;
66
67 can@0 {
68 compatible = "microchip,mcp251xfd";
69 reg = <0>;
70 clocks = <&can0_osc>;
71 pinctrl-names = "default";
72 pinctrl-0 = <&can0_pins>;
73 spi-max-frequency = <20000000>;
74 interrupts-extended = <&gpio 13 IRQ_TYPE_LEVEL_LOW>;
75 microchip,rx-int-gpios = <&gpio 27 GPIO_ACTIVE_LOW>;
76 vdd-supply = <®5v0>;
77 xceiver-supply = <®5v0>;
78 };
79 };