47 lines · plain
1CS42L52 audio CODEC2 3Required properties:4 5 - compatible : "cirrus,cs42l52"6 7 - reg : the I2C address of the device for I2C8 9Optional properties:10 11 - cirrus,reset-gpio : GPIO controller's phandle and the number12 of the GPIO used to reset the codec.13 14 - cirrus,chgfreq-divisor : Values used to set the Charge Pump Frequency.15 Allowable values of 0x00 through 0x0F. These are raw values written to the16 register, not the actual frequency. The frequency is determined by the following.17 Frequency = (64xFs)/(N+2)18 N = chgfreq_val19 Fs = Sample Rate (variable)20 21 - cirrus,mica-differential-cfg : boolean, If present, then the MICA input is configured22 as a differential input. If not present then the MICA input is configured as23 Single-ended input. Single-ended mode allows for MIC1 or MIC2 muxing for input.24 25 - cirrus,micb-differential-cfg : boolean, If present, then the MICB input is configured26 as a differential input. If not present then the MICB input is configured as27 Single-ended input. Single-ended mode allows for MIC1 or MIC2 muxing for input.28 29 - cirrus,micbias-lvl: Set the output voltage level on the MICBIAS Pin30 0 = 0.5 x VA31 1 = 0.6 x VA32 2 = 0.7 x VA33 3 = 0.8 x VA34 4 = 0.83 x VA35 5 = 0.91 x VA36 37Example:38 39codec: codec@4a {40 compatible = "cirrus,cs42l52";41 reg = <0x4a>;42 reset-gpio = <&gpio 10 0>;43 cirrus,chgfreq-divisor = <0x05>;44 cirrus.mica-differential-cfg;45 cirrus,micbias-lvl = <5>;46};47