1* Nokia N900 audio setup 2 3Required properties: 4- compatible: Should contain "nokia,n900-audio" 5- nokia,cpu-dai: phandle for the McBSP node 6- nokia,audio-codec: phandles for the main TLV320AIC3X node and the 7 auxiliary TLV320AIC3X node (in this order) 8- nokia,headphone-amplifier: phandle for the TPA6130A2 node 9- tvout-selection-gpios: GPIO for tvout selection 10- jack-detection-gpios: GPIO for jack detection 11- eci-switch-gpios: GPIO for ECI (Enhancement Control Interface) switch 12- speaker-amplifier-gpios: GPIO for speaker amplifier 13 14Example: 15 16sound { 17 compatible = "nokia,n900-audio"; 18 19 nokia,cpu-dai = <&mcbsp2>; 20 nokia,audio-codec = <&tlv320aic3x>, <&tlv320aic3x_aux>; 21 nokia,headphone-amplifier = <&tpa6130a2>; 22 23 tvout-selection-gpios = <&gpio2 8 GPIO_ACTIVE_HIGH>; /* 40 */ 24 jack-detection-gpios = <&gpio6 17 GPIO_ACTIVE_HIGH>; /* 177 */ 25 eci-switch-gpios = <&gpio6 22 GPIO_ACTIVE_HIGH>; /* 182 */ 26 speaker-amplifier-gpios = <&twl_gpio 7 GPIO_ACTIVE_HIGH>; 27}; 28