[PATCH v4 00/14] cx231xx: Use muxed i2c adapters instead of custom switching

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Hi!

This time the series got only small updates from Antti's review.

Additionally I added a patch to no longer directly modify
the content of the port3 switch bit in PWR_CTL_EN (from function cx231xx_set_power_mode).

Now there are two places where I wonder what happens:
1. cx231xx_set_Colibri_For_LowIF writes a fixed number into all 8bit parts of PWR_CTL_EN
   What is this for?
2. I guess, cx231xx_demod_reset should reset the digital demod. For this it should toggle the bits 0 and 1 of PWR_CTL_EN. 
   But instead it touches but 8 and 9.
   Does someone know what this is?

3. Is remembering the last status of the port3 bit working good enough?
   Currently it is only used for the is_tuner hack function.

Regards
Matthias

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