On Sat, Mar 2, 2019 at 11:06 AM Yu Chen [off-list ref] wrote:

This driver handles usb phy power on and shutdown for hi3660 Soc of
Hisilicon.

Few comments below. After fixing them, FWIW
Reviewed-by: Andy Shevchenko <redacted>

+#define HI3660_USB_DEFAULT_PHY_PARAM           0x1c466e3

A bit of description would be nice to have what this value means.

+       /* delay for exit from IDDQ mode */
+       usleep_range(100, 100);

100,100 ? I think you need to give a room to scheduler, at least 20%
margin would be good to have.

+       /* delay for vbus valid */
+       usleep_range(100, 100);

Ditto.


-- 
With Best Regards,
Andy Shevchenko