On 12/02/2013 02:01 PM, Sebastian Andrzej Siewior wrote: > - stable@xxxxxxxxxxxxxxx since they probably don't care about this > unless the patch is merged. > > On 12/02/2013 10:41 AM, Roger Quadros wrote: >> Michael, >> >> On 11/29/2013 05:32 PM, Michael Trimarchi wrote: >>> Hi Roger >>> >>> On Fri, Nov 29, 2013 at 2:01 PM, Roger Quadros <rogerq@xxxxxx> wrote: >>>> With u-boot 2013.10, USB devices are sometimes not detected >>>> on OMAP4 Panda. To make us independent of what bootloader does >>>> with the USB Host module, we must RESET it to get it to a known >>>> good state. This patch Soft RESETs the USB Host module. >>>> >>> >>> Do you think that we need something similar of usb musb? >>> I have seen the OTG_SYSCONFIG is touched in uboot and >>> only readed in omap2430.c. >> >> I'm not sure about musb. Maybe Sebastian/Felipe have better idea. >> In general I believe that all modules must be reset by the kernel. >> > > based on the code at the bottom it touches the first few register(s) > sysconfig. Isn't hwmod actually doing this idle stuff and resting the > device during boot? > You are right. The musb hwmod data doesn't have the HWMOD_INIT_NO_RESET flag, so hwmod should reset it during boot. Maybe I too should just remove HWMOD_INIT_NO_RESET flag from the USB Host hwmod data, then we don't need to change this driver at all. Benoit, Tony any comments? cheers, -roger -- 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
