From 13407ff27074ad4369611a211dd913f81a92158a Mon Sep 17 00:00:00 2001 From: Martin Sperl Date: Sat, 5 May 2018 09:52:28 +0000 Subject: dt-binding: can: mcp25xxfd: document device tree bindings Add device-tree bindings for Microcip CanFD Controller mcp2517fd -- Changelog: V1 -> V2: new more generic name based on feedback from microchip cleanup of dt custom properties removing (most) gpio functions V2 -> V3: added vendor-prefix for gpio-opendrain s/_/-/ added gpio-controller V3 -> V4: resend added: Reviewed-by: Rob Herring V7 -> V8: added support for mcp2518fd added microchip,gpio0-xstandby removed Reviewed-by because of changes Signed-off-by: Martin Sperl (cherry picked from commit ca3c427d353bafffa51d38da57e49f61ba16dbbf) (cherry picked from commit 1b9c8b6a5c778c0be58b9877834afa1320b2a0f0) --- .../bindings/net/can/microchip,mcp25xxfd.txt | 34 ++++++++++++++++++++++ 1 file changed, 34 insertions(+) create mode 100644 Documentation/devicetree/bindings/net/can/microchip,mcp25xxfd.txt (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/net/can/microchip,mcp25xxfd.txt b/Documentation/devicetree/bindings/net/can/microchip,mcp25xxfd.txt new file mode 100644 index 000000000000..d53754d6d2a4 --- /dev/null +++ b/Documentation/devicetree/bindings/net/can/microchip,mcp25xxfd.txt @@ -0,0 +1,34 @@ +* Microchip MCP2517 stand-alone CAN controller device tree bindings + +Required properties: + - compatible: Should be one of the following: + - "microchip,mcp2517fd" for MCP2517fd. + - "microchip,mcp2518fd" for MCP2518fd. + - reg: SPI chip select. + - clocks: The clock feeding the CAN controller. + - interrupt-parent: The parent interrupt controller. + - interrupts: Should contain IRQ line for the CAN controller. + - gpio-controller: Marks the device node as a GPIO controller + +Optional properties: + - vdd-supply: Regulator that powers the CAN controller. + - xceiver-supply: Regulator that powers the CAN transceiver. + - microchip,clock-out-div = <0|1|2|4|10>: Clock output pin divider + 0 = Start of Frame output + default: 10 + - microchip,clock-div2: bool: divide the internal clock by 2 + - microchip,gpio-open-drain: bool: enable open-drain for all pins + (except cantx) + - microchip,gpio0-xstandby: bool: enable xstandby functionality on gpio 0 + +Example: + can0: can@1 { + compatible = "microchip,mcp2517fd"; + reg = <1>; + clocks = <&clk24m>; + interrupt-parent = <&gpio4>; + interrupts = <13 0x8>; + vdd-supply = <®5v0>; + xceiver-supply = <®5v0>; + gpio-controller; + }; -- cgit v1.2.3