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I noticed that my Xperia U FM radio sound stereo in reverse or "mirror" (in the left channel plays the sound of the right and vice versa). At the same player in the service menu audiotest give a correct stereo sound. Verifies sounding radio with stereo receiver and the other phone models, and sound an modulation from an external FM transmitter, changing the sound balance. Tested on the built-in FM radio application. ROMs also tried to change. Someone else noticed this feature? And who can know, in any system files to find a solution or a hardware marriage?

Maybe reason in kernel\include\linux\mfd\cg2900_audio.h ?
please help.
Thanks.
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