On 06-09-22, 10:43, JC Kuo wrote: > Hi Vinod, Please _do_ _not_ _top_ _post_ > Before the device or host is being attached, we can keep most of the > transceivers powered down (PD=1/PD_DR=1) to minimize power consumption. At this > stage, in .phy_power_on(), we enable only the single-ended receiver (PD_ZI=0) > for detecting connection. Upon detecting device's or host's connection, host or > controller driver will invoke tegra_phy_xusb_utmi_pad_power_on() to power on all > of the transceivers (PD=0/PD_DR=0) to equip full link functionality. Thanks for this explanation... It helps! Just a suggestion, can this be moved into phy_init() you have detected connection in phy_power_on(), the transceiver can be enabled in phy_int... Would that work? -- ~Vinod
