Hi John, On 9/25/2018 21:59, John Stultz wrote: > On Tue, Sep 25, 2018 at 3:04 AM, Artur Petrosyan > <arthur.petrosyan@xxxxxxxxxxxx> wrote: >> Just a clarification by this commit "[PATCH] usb: dwc2: Fix HiKey >> regression caused by power_down feature" >> https://urldefense.proofpoint.com/v2/url?u=https-3A__marc.info_-3Fl-3Dlinux-2Dusb-26m-3D152669095513248-26w-3D2&d=DwIBaQ&c=DPL6_X_6JkXFx7AXWqB0tg&r=9hPBFKCJ_nBjJhGVrrlYOeOQjP_HlVzYqrC_D7niMJI&m=0lMkv7adFVwkzyaUzD6-pUG0iwg4fd6b1-aHQgbqvSI&s=m8SZvo3J_Za08sMbo-S9EkhoA06YnzEN-SRm-uTPnbg&e= >> >> the power_down is disabled setting "p->power_down = false;" in >> "dwc2_set_his_params" function. >> >> Could you please clarify that the testes done for those 3 patches were >> done enabling "p->power_down = true;" in "dwc2_set_his_params" function. > > So if I remove the "power_down = true" initialization, USB does not > seem to function. > > If I boot w/ the gadget port removed, the USB host ports do work, but > plugging in the gadget cable results in a bunch of: > dwc2 f72c0000.usb: Waiting for Host Mode, Mode=Peripheral > messages. > > If I boot w/ the gadget port plugged in, USB gadget mode doesn't seem > to function at all, and when I remove the gadget cable nothing > happens, it doesn't switch to host mode. > > thanks > -john > Could you please send the dmesg logs for those situations? Also, please specify the version of the kernel that the testes has been done on. Regards, Artur
