Bindings/net/can/microchip,mcp251xfd.yaml

   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
   7 title: Microchip MCP2517FD, MCP2518FD and MCP251863 stand-alone CAN controller
   8
   9 maintainers:
  10   - Marc Kleine-Budde <mkl@pengutronix.de>
  11
  12 allOf:
  13   - $ref: can-controller.yaml#
  14
  15 properties:
  16   compatible:
  17     oneOf:
  18       - enum:
  19           - microchip,mcp2517fd
  20           - microchip,mcp2518fd
  21           - microchip,mcp251xfd
  22       - items:
  23           - enum:
  24               - microchip,mcp251863
  25           - const: microchip,mcp2518fd
  26   reg:
  27     maxItems: 1
  28
  29   interrupts:
  30     maxItems: 1
  31
  32   clocks:
  33     maxItems: 1
  34
  35   vdd-supply:
  36     description: Regulator that powers the CAN controller.
  37
  38   xceiver-supply:
  39     description: Regulator that powers the CAN transceiver.
  40
  41   microchip,rx-int-gpios:
  42     description:
  43       GPIO phandle of GPIO connected to to INT1 pin of the MCP251XFD, which
  44       signals a pending RX interrupt.
  45     maxItems: 1
  46
  47   spi-max-frequency:
  48     description:
  49       Must be half or less of "clocks" frequency.
  50     maximum: 20000000
  51
  52 required:
  53   - compatible
  54   - reg
  55   - interrupts
  56   - clocks
  57
  58 additionalProperties: false
  59
  60 examples:
  61   - |
  62     #include <dt-bindings/gpio/gpio.h>
  63     #include <dt-bindings/interrupt-controller/irq.h>
  64
  65     spi {
  66         #address-cells = <1>;
  67         #size-cells = <0>;
  68
  69         can@0 {
  70             compatible = "microchip,mcp251xfd";
  71             reg = <0>;
  72             clocks = <&can0_osc>;
  73             pinctrl-names = "default";
  74             pinctrl-0 = <&can0_pins>;
  75             spi-max-frequency = <20000000>;
  76             interrupts-extended = <&gpio 13 IRQ_TYPE_LEVEL_LOW>;
  77             microchip,rx-int-gpios = <&gpio 27 GPIO_ACTIVE_LOW>;
  78             vdd-supply = <&reg5v0>;
  79             xceiver-supply = <&reg5v0>;
  80         };
  81     };