1*3a85ca9dSBrian AustinCS42L52 audio CODEC 2*3a85ca9dSBrian Austin 3*3a85ca9dSBrian AustinRequired properties: 4*3a85ca9dSBrian Austin 5*3a85ca9dSBrian Austin - compatible : "cirrus,cs42l52" 6*3a85ca9dSBrian Austin 7*3a85ca9dSBrian Austin - reg : the I2C address of the device for I2C 8*3a85ca9dSBrian Austin 9*3a85ca9dSBrian AustinOptional properties: 10*3a85ca9dSBrian Austin 11*3a85ca9dSBrian Austin - cirrus,reset-gpio : GPIO controller's phandle and the number 12*3a85ca9dSBrian Austin of the GPIO used to reset the codec. 13*3a85ca9dSBrian Austin 14*3a85ca9dSBrian Austin - cirrus,chgfreq-divisor : Values used to set the Charge Pump Frequency. 15*3a85ca9dSBrian Austin Allowable values of 0x00 through 0x0F. These are raw values written to the 16*3a85ca9dSBrian Austin register, not the actual frequency. The frequency is determined by the following. 17*3a85ca9dSBrian Austin Frequency = (64xFs)/(N+2) 18*3a85ca9dSBrian Austin N = chgfreq_val 19*3a85ca9dSBrian Austin Fs = Sample Rate (variable) 20*3a85ca9dSBrian Austin 21*3a85ca9dSBrian Austin - cirrus,mica-differential-cfg : boolean, If present, then the MICA input is configured 22*3a85ca9dSBrian Austin as a differential input. If not present then the MICA input is configured as 23*3a85ca9dSBrian Austin Single-ended input. Single-ended mode allows for MIC1 or MIC2 muxing for input. 24*3a85ca9dSBrian Austin 25*3a85ca9dSBrian Austin - cirrus,micb-differential-cfg : boolean, If present, then the MICB input is configured 26*3a85ca9dSBrian Austin as a differential input. If not present then the MICB input is configured as 27*3a85ca9dSBrian Austin Single-ended input. Single-ended mode allows for MIC1 or MIC2 muxing for input. 28*3a85ca9dSBrian Austin 29*3a85ca9dSBrian Austin - cirrus,micbias-lvl: Set the output voltage level on the MICBIAS Pin 30*3a85ca9dSBrian Austin 0 = 0.5 x VA 31*3a85ca9dSBrian Austin 1 = 0.6 x VA 32*3a85ca9dSBrian Austin 2 = 0.7 x VA 33*3a85ca9dSBrian Austin 3 = 0.8 x VA 34*3a85ca9dSBrian Austin 4 = 0.83 x VA 35*3a85ca9dSBrian Austin 5 = 0.91 x VA 36*3a85ca9dSBrian Austin 37*3a85ca9dSBrian AustinExample: 38*3a85ca9dSBrian Austin 39*3a85ca9dSBrian Austincodec: codec@4a { 40*3a85ca9dSBrian Austin compatible = "cirrus,cs42l52"; 41*3a85ca9dSBrian Austin reg = <0x4a>; 42*3a85ca9dSBrian Austin reset-gpio = <&gpio 10 0>; 43*3a85ca9dSBrian Austin cirrus,chgfreq-divisor = <0x05>; 44*3a85ca9dSBrian Austin cirrus.mica-differential-cfg; 45*3a85ca9dSBrian Austin cirrus,micbias-lvl = <5>; 46*3a85ca9dSBrian Austin}; 47