On Mon, Aug 01, 2016 at 07:55:10AM -0700, Joshua Clayton wrote: > > > On 07/28/2016 09:41 AM, Fabio Estevam wrote: > > Hi Joshua, > > > > On Thu, Jul 28, 2016 at 12:56 PM, Joshua Clayton > > <stillcompiling@xxxxxxxxx> wrote: > > > >> I assume there is a v4 coming due to rmk's comments on patch 5. > >> I couldn't figure out where to null the of_node in error paths, but in testing > >> we did put a line of code to null the of_node on release. > >> > >> but... > >> As an aside, > >> I was hoping this series would magically fix a problem > >> with the imx6q-evi which has forced us to disable > >> runtime power management. But it did not. :( > > I also see a similar problem on a mx28 board with a hub. > > > > Does it help in your case if you pass 'usbcore.autosuspend=-1' in the > > kernel command line? > > > > Regards, > > > > Fabio Estevam > Thanks a million, Fabio! > > 'usbcore.autosuspend=-1' quiets the errors. > > ~joshua > If you are using imx6q, there are some patches which is not upstreamed to workaround one SoC problem. http://www.spinics.net/lists/linux-usb/msg98682.html Try to implement the design for notify_suspend/resume at drivers/usb/phy/phy-mxs-usb.c and drivers/usb/chipidea/host.c You can refer to the code at: http://git.freescale.com/git/cgit.cgi/imx/linux-2.6-imx.git/tree/?h=imx_4.1.15_1.0.0_ga -- Best Regards, Peter Chen -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
