1Qualcomm Universal Peripheral (QUP) I2C controller 2 3Required properties: 4 - compatible: Should be: 5 * "qcom,i2c-qup-v1.1.1" for 8660, 8960 and 8064. 6 * "qcom,i2c-qup-v2.1.1" for 8974 v1. 7 * "qcom,i2c-qup-v2.2.1" for 8974 v2 and later. 8 - reg: Should contain QUP register address and length. 9 - interrupts: Should contain I2C interrupt. 10 11 - clocks: A list of phandles + clock-specifiers, one for each entry in 12 clock-names. 13 - clock-names: Should contain: 14 * "core" for the core clock 15 * "iface" for the AHB clock 16 17 - #address-cells: Should be <1> Address cells for i2c device address 18 - #size-cells: Should be <0> as i2c addresses have no size component 19 20Optional properties: 21 - clock-frequency: Should specify the desired i2c bus clock frequency in Hz, 22 defaults to 100kHz if omitted. 23 24Child nodes should conform to i2c bus binding. 25 26Example: 27 28 i2c@f9924000 { 29 compatible = "qcom,i2c-qup-v2.2.1"; 30 reg = <0xf9924000 0x1000>; 31 interrupts = <0 96 0>; 32 33 clocks = <&gcc GCC_BLSP1_QUP2_I2C_APPS_CLK>, <&gcc GCC_BLSP1_AHB_CLK>; 34 clock-names = "core", "iface"; 35 36 clock-frequency = <355000>; 37 38 #address-cells = <1>; 39 #size-cells = <0>; 40 }; 41