Qualcomm Universal Peripheral (QUP) I2C controller Required properties: - compatible: Should be: * "qcom,i2c-qup-v1.1.1" for 8660, 8960 and 8064. * "qcom,i2c-qup-v2.1.1" for 8974 v1. * "qcom,i2c-qup-v2.2.1" for 8974 v2 and later. - reg: Should contain QUP register address and length. - interrupts: Should contain I2C interrupt. - clocks: A list of phandles + clock-specifiers, one for each entry in clock-names. - clock-names: Should contain: * "core" for the core clock * "iface" for the AHB clock - #address-cells: Should be <1> Address cells for i2c device address - #size-cells: Should be <0> as i2c addresses have no size component Optional properties: - clock-frequency: Should specify the desired i2c bus clock frequency in Hz, defaults to 100kHz if omitted. Child nodes should conform to i2c bus binding. Example: i2c@f9924000 { compatible = "qcom,i2c-qup-v2.2.1"; reg = <0xf9924000 0x1000>; interrupts = <0 96 0>; clocks = <&gcc GCC_BLSP1_QUP2_I2C_APPS_CLK>, <&gcc GCC_BLSP1_AHB_CLK>; clock-names = "core", "iface"; clock-frequency = <355000>; #address-cells = <1>; #size-cells = <0>; };