Hi Michael, > Am 04.02.2018 um 11:55 schrieb Michael Nazzareno Trimarchi <michael@xxxxxxxxxxxxxxxxxxxx>: > > Hi Andreas > > On Sun, Feb 4, 2018 at 11:50 AM, Andreas Kemnade <andreas@xxxxxxxxxxxx> wrote: >> Hi, >> >> On Sun, 4 Feb 2018 09:43:45 +0100 >> Michael Nazzareno Trimarchi <michael@xxxxxxxxxxxxxxxxxxxx> wrote: >> >>> Hi Andreas >>> >>> On Sun, Feb 4, 2018 at 9:38 AM, Andreas Kemnade <andreas@xxxxxxxxxxxx> wrote: >>>> On Sun, 4 Feb 2018 00:10:50 +0100 >>>> Michael Nazzareno Trimarchi <michael@xxxxxxxxxxxxxxxxxxxx> wrote: >>>> >>>>> Hi >>>>> >>>>> On Sun, Feb 4, 2018 at 12:03 AM, Andreas Kemnade <andreas@xxxxxxxxxxxx> wrote: >>>>>> Hi, >>>>>> >>>>>> I booted a 4.15 kernel without udev and loaded modules piece by piece to analyze >>>>>> pm problems. modprobe ehci-omap increases current by around 35mA and >>>>>> also rmmod ehci-omap does not let it go down at all. >>>>>> >>>>>> I expect that removing hardware does the same thing >>>> nonsense sentence from me, was to tired. I would expect that removing the modules >>>> properly powers down the device. >>>>>> >>>>>> Also suspend current increases by around 15mA if that module is loaded. >>>>>> I tested with having everything disabled which is attached to that usb bus. >>>>>> >>>>> >>>>> Do you have an LTE connected to the usb? >>>>> >>>> Yes, there is a UMTS modem attached, but it was off during the tests. >>>> It did not enumerate on the modem. >>>> >>> >>> Just to understand if the suspend current drop was connected to the >>> suspend of lte modem on your side. >>> So you don't have anything connected on usb bus? >>> >> Suspend current is increased when the ehci-omap module is loaded >> in comparison to the state. I tested with the modem disabled, so there >> is nothing on the bus. Increased suspend current is one thing, >> current_before_modprobe_ehci_omap != current_after_rmmod_ehci_omap. >> >> I am testing with init=some_testscript.sh, so no userspace >> is doing strange things. No module autoload or something. >> > > How many port are configured and how is the phy part connected to the > ehci controller? > Can you point me the schematic page? it is essentially a copy&paste from BeagleBoard XM. Schematics of the GTA04 are here: http://projects.goldelico.com/p/gta04-main/downloads/48/ USB PHY is on page 9. BR, Nikolaus > > michael > > >> Regards, >> Andreas > > > > -- > | Michael Nazzareno Trimarchi Amarula Solutions BV | > | COO - Founder Cruquiuskade 47 | > | +31(0)851119172 Amsterdam 1018 AM NL | > | [`as] http://www.amarulasolutions.com | > _______________________________________________ > http://projects.goldelico.com/p/gta04-kernel/ > Letux-kernel mailing list > Letux-kernel@xxxxxxxxxxxxxxx > http://lists.goldelico.com/mailman/listinfo.cgi/letux-kernel -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
