Hi Rusian, 2014-10-29 14:31 GMT+01:00 Ruslan Bilovol <ruslan.bilovol@xxxxxxxxx>: > Hi Enric > > On Wed, Oct 29, 2014 at 1:44 PM, Enric Balletbo Serra > <eballetbo@xxxxxxxxx> wrote: >> >> Hi all, >> >> 2014-10-26 10:10 GMT+01:00 Angelo Dureghello <angelo70@xxxxxxxxx>: >> > Had some progresses: >> > >> > on kernel 3.17, musb controller driver is set to start as OTG mode as >> > default. So as first thing, since my board has ID pin shorted to ground, i >> > changed the default mode to MUSB_HOST., as it was on kernel 3.5.1 >> > >> > So with same settings of 3.5.1 now key is detected correctly at first >> > insertion, but after a removal, the stick is not detected anymore. >> > >> > Issue seems visible in drivers/usb/musb/da8xx.c, inside irqreturn_t >> > da8xx_musb_interrupt() routine. >> > >> > looking the /sys fs, i see that the mode moves in time order as: >> > >> > |boot: vbus off b_idle|| >> > boot: vbus off a_wait_vrise|| >> > insertion: vbus off a_host| >> > removal: vbus off b_idle >> > >> > After last b_host, the state never moves back to a_wait_vrise. >> > >> > After the removal, the interrupt call irqreturn_t da8xx_musb_interrupt() >> > seems broken and seems never called anymore. >> > >> > Regards. >> > >> >> I'll add more information to this thread. >> >> Seems MUSB is also broken on OMAP3 boards, booting in OTG mode I'm not >> able to make it work when a pendrive is connected to the port. Forcing >> HOST mode I get following messages: >> >> [ 13.244567] usb 2-1: new high-speed USB device number 2 using musb-hdrc >> [ 13.503234] usb 2-1: device v058f p6387 is not supported >> [ 13.592346] usb usb2-port1: unable to enumerate USB device >> > You need to disable CONFIG_USB_OTG_WHITELIST option to avoid this. > Or add your device to white list of supported devices. > Thanks, right, with this option disabled I can enumerate the device. OTOH the big problem is OTG doesn't switch between peripheric mode and host mode. The use case is as follows: 1. Start the board with OTG mode, nothing connected to the port. 2. Plug a pendrive with an adaptor that sets the ID pin to low. In that case the no device is detected. Best regards, Enric > Best regards, > Ruslan > >> OTOH the OTG port as gadget works. >> >> Regards, >> Enric >> -- >> To unsubscribe from this list: send the line "unsubscribe linux-usb" in >> the body of a message to majordomo@xxxxxxxxxxxxxxx >> More majordomo info at http://vger.kernel.org/majordomo-info.html > > > > > -- > Best regards, > Ruslan Bilvol -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
