On Thu, Oct 08, 2015 at 09:52:52AM +0000, Peter Chen wrote: > I can't reproduce it for 5 hours, and will change pinmux (do the same > thing with your platform), and do the overnight test. There's definitely something weird going on. Over night last night, I left the Logitech universal receiver in the port, and this morning it was indicating in /proc/interrupts: 283: 50 0 0 0 GPC 43 Edge 2184000.usb I removed it, and now I have: 283: 50 0 1716 0 GPC 43 Edge 2184000.usb which is increasing at a rate of 90 per minute. Nothing in the kernel message log indicating why this may be. It looks like runtime PM doesn't work on this port: /sys/bus/platform/devices/2184000.usb/power/runtime_active_time:109850496 /sys/bus/platform/devices/2184000.usb/power/runtime_status:active /sys/bus/platform/devices/2184000.usb/power/runtime_suspended_time:0 whereas the other port (which has zero interrupts) it does: /sys/bus/platform/devices/2184200.usb/power/runtime_active_time:16924 /sys/bus/platform/devices/2184200.usb/power/runtime_status:suspended /sys/bus/platform/devices/2184200.usb/power/runtime_suspended_time:109861760 -- FTTC broadband for 0.8mile line: currently at 9.6Mbps down 400kbps up according to speedtest.net. -- 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
