On Fri, Sep 15, 2017 at 02:20:09AM +0000, Oder Chiou wrote: > Sorry for my poor explanation. That's OK. > The impedance table should like the following setting in the DTS. > < 0 300 7 0xffd160 0xffd1c0 0xff8a10 0xff8ab0 > 301 65535 4 0xffe470 0xffe470 0xffb8e0 0xffb8e0> > The first and second column are defined for the impedance range. If the > detected impedance value is in the range, then the volume value of the third > column will be set to codec. In our codec design, each volume value should > compensate different DC offset to avoid the pop sound, and it is also > different between headphone and headset. In the example, the > "realtek,impedance_sensing_num" is 2. It means that there are 2 ranges of > impedance in the impedance sensing function, and it also can be defined the > device whether can support this function or not. This stuff looks fairly good, can you put it in the binding document please?
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