[PATCH 1/3] Documentation: Add APM X-Gene SoC 6.0Gbps SATA PHY driver binding documentation

[Loc Ho]

Hi,

>> +- CTLE0                        : PHY override parameters for channel 0 register REG1
>> +                         field CTLE_EQ. First value for Gen1, second value
>> +                         for Gen2, and third value for Gen3. Default is 0x2.
>> +- CTLE1                        : PHY override parameters for channel 1 register REG1
>> +                         field CTLE_EQ. First value for Gen1, second value
>> +                         for Gen2, and third value for Gen3. Default is 0x2.
>> +- PQ0                  : PHY override parameters for channel 0 register REG125
>> +                         field PQ_REG. First value for Gen1, second value
>> +                         for Gen2, and third value for Gen3. Default is 0xA.
>> +- PQ1                  : PHY override parameters for channel 1 register REG125
>> +                         field PQ_REG. First value for Gen1, second value
>> +                         for Gen2, and third value for Gen3. Default is 0xA.
>
> As mentioned before, I don't think putting register-level information into the binding
> is the right approach here.
>
[Loc Ho]
I don't want to change the driver for every possible customer or APM
boards out there. In general, if the board designer follows the board
design guideline, this isn't necessary. Unfortunately, I can not
control what customer do. If these setting is NOT driven by DTS, then
I or others may have to change the driver every time there is an new
board. Another option is pass them as module parameters.

-Loc