Add device tree binding document for the IPMB device interface. This device is already in use in both driver and .dts files. Signed-off-by: Ninad Palsule <ninad@xxxxxxxxxxxxx> --- .../devicetree/bindings/ipmi/ipmb-dev.yaml | 55 +++++++++++++++++++ 1 file changed, 55 insertions(+) create mode 100644 Documentation/devicetree/bindings/ipmi/ipmb-dev.yaml diff --git a/Documentation/devicetree/bindings/ipmi/ipmb-dev.yaml b/Documentation/devicetree/bindings/ipmi/ipmb-dev.yaml new file mode 100644 index 000000000000..136806cba632 --- /dev/null +++ b/Documentation/devicetree/bindings/ipmi/ipmb-dev.yaml @@ -0,0 +1,55 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/ipmi/ipmb-dev.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: The Intelligent Platform Management Bus(IPMB) Device + +description: | + The IPMB is an I2C bus which provides interconnection between Baseboard + Management Controller(BMC) and chassis electronics. The BMC sends IPMI + requests to intelligent controllers like Satellite Management Controller(MC) + device via IPMB and the device sends a response back to the BMC. + This device binds backend Satelite MC which is a I2C slave device with the BMC + for management purpose. A miscalleneous device provices a user space program + to communicate with kernel and backend device. Some IPMB devices only support + I2C protocol instead of SMB protocol. + + IPMB communications protocol Specification V1.0 + https://www.intel.com/content/dam/www/public/us/en/documents/product-briefs/ipmp-spec-v1.0.pdf + +maintainers: + - Ninad Palsule <ninad@xxxxxxxxxxxxx> + +properties: + compatible: + enum: + - ipmb-dev + + reg: + maxItems: 1 + + i2c-protocol: + description: + Use I2C block transfer instead of SMBUS block transfer. + type: boolean + +required: + - compatible + - reg + +additionalProperties: false + +examples: + - | + i2c { + #address-cells = <1>; + #size-cells = <0>; + + ipmb-dev@10 { + compatible = "ipmb-dev"; + reg = <0x10>; + i2c-protocol; + }; + }; -- 2.43.0
