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author | Oleksij Rempel <o.rempel@pengutronix.de> | 2020-09-18 20:25:31 +0300 |
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committer | Marc Kleine-Budde <mkl@pengutronix.de> | 2020-09-21 11:13:19 +0300 |
commit | 1b5a78e69c1fdae9aa8a62c45acb820639ccad87 (patch) | |
tree | db85bc1153e86dd2090f784640e8459e79e4ff2f /Documentation/devicetree/bindings/net | |
parent | 728fc9ff73d3f25220f6b8a52aaf063ec51ef294 (diff) | |
download | linux-1b5a78e69c1fdae9aa8a62c45acb820639ccad87.tar.xz |
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: Oleksij Rempel <o.rempel@pengutronix.de>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Link: https://lore.kernel.org/r/20200918172536.2074504-2-mkl@pengutronix.de
Diffstat (limited to 'Documentation/devicetree/bindings/net')
-rw-r--r-- | Documentation/devicetree/bindings/net/can/microchip,mcp25xxfd.yaml | 79 |
1 files changed, 79 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/net/can/microchip,mcp25xxfd.yaml b/Documentation/devicetree/bindings/net/can/microchip,mcp25xxfd.yaml new file mode 100644 index 000000000000..aa2cad14d6d7 --- /dev/null +++ b/Documentation/devicetree/bindings/net/can/microchip,mcp25xxfd.yaml @@ -0,0 +1,79 @@ +# 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 = <®5v0>; + xceiver-supply = <®5v0>; + }; + }; |