[PATCH 1/5] phy: sun4i: add support for USB phy0

[Roman Byshko]

Hi all,

sorry for missing Signed-offs, they will be added, of course.

>>> +     /* Regulation 45 ohms */
>>> +     if (phy->index == 0)
>>> +             sun4i_usb_phy_write(phy, PHY_RES45_CAL_EN, 0x01, 1);
>>
>> What is this code supposed to do?
>>
>> Some define for this bit and/or a better comment would be nice.
>
> From Allwinner's sources: "Enable/Disable USB res45 Calibration"
>
> which I think refers to the internal 45 ohm termination resistors
> for the USB data lines. But I'm not an expert on USB hardware.

Same with me. I will however change the comment to make it more informative.

Thanks for your review,
Roman