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usb OTG power

Herman Brunner
Intellectual 580 points

Hi, 

I use omap3evm board with DM3730.

I configured OTG as host and connected gsm modem. I observed current on 3 power sources attached to DM3730 and when the usb device is connected to 

ISP1507BBS phy the current consumption on 1.8 V is about 45-50 mA even when the system is suspend (the usb device is self powered, there is no communication). 

The same is when system in suspended. I wonder why usbhost_pwrdm can't change state when ID (ISP1507BBS) pin is glued to ground (host mode is activated) even when the usb cable is pulled out (but ID pin is still wired to ground).

I will try to add more info in the future.

Regards,

Karol