* Nokia N900 audio setup Required properties: - compatible: Should contain "nokia,n900-audio" - nokia,cpu-dai: phandle for the McBSP node - nokia,audio-codec: phandles for the main TLV320AIC3X node and the auxiliary TLV320AIC3X node (in this order) - nokia,headphone-amplifier: phandle for the TPA6130A2 node - tvout-selection-gpios: GPIO for tvout selection - jack-detection-gpios: GPIO for jack detection - eci-switch-gpios: GPIO for ECI (Enhancement Control Interface) switch - speaker-amplifier-gpios: GPIO for speaker amplifier Example: sound { compatible = "nokia,n900-audio"; nokia,cpu-dai = <&mcbsp2>; nokia,audio-codec = <&tlv320aic3x>, <&tlv320aic3x_aux>; nokia,headphone-amplifier = <&tpa6130a2>; tvout-selection-gpios = <&gpio2 8 GPIO_ACTIVE_HIGH>; /* 40 */ jack-detection-gpios = <&gpio6 17 GPIO_ACTIVE_HIGH>; /* 177 */ eci-switch-gpios = <&gpio6 22 GPIO_ACTIVE_HIGH>; /* 182 */ speaker-amplifier-gpios = <&twl_gpio 7 GPIO_ACTIVE_HIGH>; };