1Texas Instruments TS3A227E 2Autonomous Audio Accessory Detection and Configuration Switch 3 4The TS3A227E detect headsets of 3-ring and 4-ring standards and 5switches automatically to route the microphone correctly. It also 6handles key press detection in accordance with the Android audio 7headset specification v1.0. 8 9Required properties: 10 11 - compatible: Should contain "ti,ts3a227e". 12 - reg: The i2c address. Should contain <0x3b>. 13 - interrupts: Interrupt number for /INT pin from the 227e 14 15Optional properies: 16 - ti,micbias: Intended MICBIAS voltage (datasheet section 9.6.7). 17 Select 0/1/2/3/4/5/6/7 to specify MICBIAS voltage 18 2.1V/2.2V/2.3V/2.4V/2.5V/2.6V/2.7V/2.8V 19 Default value is "1" (2.2V). 20 21Examples: 22 23 i2c { 24 ts3a227e@3b { 25 compatible = "ti,ts3a227e"; 26 reg = <0x3b>; 27 interrupt-parent = <&gpio>; 28 interrupts = <3 IRQ_TYPE_LEVEL_LOW>; 29 }; 30 }; 31