Re: [PATCH v2] usb: phy: mxs: Add DT bindings to configure TX settings

2016-03-18 Thread Rob Herring
On Tue, Mar 15, 2016 at 12:54:13PM -0400, Jaret Cantu wrote: > The TX settings can be calibrated for particular hardware. The > phy is reset by Linux, so this cannot be handled by the bootloader. > > The TRM mentions that the maximum resistance should be used for the > DN/DP calibration in order

[PATCH v2] usb: phy: mxs: Add DT bindings to configure TX settings

2016-03-15 Thread Jaret Cantu
The TX settings can be calibrated for particular hardware. The phy is reset by Linux, so this cannot be handled by the bootloader. The TRM mentions that the maximum resistance should be used for the DN/DP calibration in order to pass USB certification. The values for the TX registers are poorly