From: Georgi Vlaev <[email protected]> Add binding document for the i2c driver of PTXPMB CPLD.
Signed-off-by: Georgi Vlaev <[email protected]> [Ported from Juniper kernel] Signed-off-by: Pantelis Antoniou <[email protected]> --- .../bindings/i2c/jnx,i2c-mux-ptxpmb-cpld.txt | 50 ++++++++++++++++++++++ 1 file changed, 50 insertions(+) create mode 100644 Documentation/devicetree/bindings/i2c/jnx,i2c-mux-ptxpmb-cpld.txt diff --git a/Documentation/devicetree/bindings/i2c/jnx,i2c-mux-ptxpmb-cpld.txt b/Documentation/devicetree/bindings/i2c/jnx,i2c-mux-ptxpmb-cpld.txt new file mode 100644 index 0000000..3b201f7 --- /dev/null +++ b/Documentation/devicetree/bindings/i2c/jnx,i2c-mux-ptxpmb-cpld.txt @@ -0,0 +1,50 @@ +* Juniper PTXPMB CPLD I2C Mux + +I2C mux on the PTXPMB CPLD on Juniper series of routers. + +Required properties: + + - compatible: Must contain one of the following. + "jnx,i2c-mux-ptxpmb-cpld", "jnx,i2c-mux-ngpmb-bcpld" + - num-enable: Number of muxes to enable. + + The following required properties are defined externally: + + - Standard I2C mux properties. See i2c-mux.txt in this directory. + - I2C child bus nodes. See i2c-mux.txt in this directory. + +Optional Properties: + + - num-channels: Number of channels. If not present the default is 8. + - base-bus-num: Base bus number. If not present it is 0. + - use-force: Use the force method of the controller. + + +Example: + +cpld-i2c-mux { + compatible = "jnx,i2c-mux-ptxpmb-cpld"; + #address-cells = <1>; + #size-cells = <0>; + + i2c-parent = <&i2c1>; + + num-enable = <1>; + + i2c@0 { + reg = <0>; + #address-cells = <1>; + #size-cells = <0>; + + /* PMB devices are accessed through FPC */ + + temp-sensor@1a { /* FPC */ + compatible = "maxim,max6697"; + reg = <0x1a>; + smbus-timeout-disable; + resistance-cancellation; + alert-mask = <0xff>; + over-temperature-mask = <0xff>; + }; + }; +}; -- 1.9.1
