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The devices on the mux can be selected by writing the appropriate device number to an I2C config register (amc6821: reg 0xff) Signed-off-by: Farouk Bouabid --- .../devicetree/bindings/i2c/tsd,mule.yaml | 63 ++++++++++++++++++= ++++ 1 file changed, 63 insertions(+) diff --git a/Documentation/devicetree/bindings/i2c/tsd,mule.yaml b/Document= ation/devicetree/bindings/i2c/tsd,mule.yaml new file mode 100644 index 000000000000..dbbabba8dd6f --- /dev/null +++ b/Documentation/devicetree/bindings/i2c/tsd,mule.yaml @@ -0,0 +1,63 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/i2c/tsd,mule.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Theobroma Systems Mule I2C device + +maintainers: + - Farouk Bouabid + - Quentin Schulz + +description: | + Theobroma Systems Mule is an MCU that emulates a set of I2C devices, amo= ng + which is an amc6821 and other devices that are reachable through an I2C-= mux. + The devices on the mux can be selected by writing the appropriate device + number to an I2C config register (amc6821: reg 0xff) + +additionalProperties: true + +properties: + compatible: + contains: + enum: + - tsd,mule + - ti,amc6821 + + reg: + maxItems: 1 + +required: + - compatible + - reg + +examples: + - | + i2c { + #address-cells =3D <1>; + #size-cells =3D <0>; + + fan@18 { + compatible =3D "tsd,mule", "ti,amc6821"; + reg =3D <0x18>; + + i2c-mux { + compatible =3D "tsd,mule-i2c-mux"; + #address-cells =3D <1>; + #size-cells =3D <0>; + + i2c@0 { + reg =3D <0x0>; + #address-cells =3D <1>; + #size-cells =3D <0>; + + rtc@6f { + compatible =3D "isil,isl1208"; + reg =3D <0x6f>; + }; + }; + }; + }; + }; +... --=20 2.34.1