On Tuesday 19 January 2016 12:33:15 Tony Lindgren wrote: > Hi, > > * Pali Rohár <[email protected]> [160109 07:16]: > > Hello, > > > > when I boot 4.4.0-rc7+ kernel compiled with g_nokia into zImage on Nokia > > N900 into userspace then usb gadget (g_nokia) does not work. Notebook, > > connected on other side does not see any usb device... Connecting and > > disconnecting cable does not change anything, still not work. > > > > But if I run this command > > $ echo peripheral > /sys/bus/platform/devices/musb-hdrc.0.auto/mode > > > > then gadget starts working. Other side see usb device and can use it. > > Also connecting and disconnecting usb cable working fine. After > > connecting it again, usb device OK. > > N900 had the PHY interrupt wired to the bq chip instead of twl4030, right?
I do not know now. I tried to find it in N900 schemantics, but do not see it. CCing Joerg, do you know? > You can fix this issue similar to phy-twl4030-usb.c. In function > twl4030_phy_power_on() we call schedule_delayed_work() that checks > the state of the ID pin on boot up. I looked at that code, but do not see what and how can be fixed :-( > I think that's only needed for the i2c based PHY's with MUSB, with > the others the USB driver has a better idea of the current state. > > Regards, > > Tony -- Pali Rohár [email protected]
