From mboxrd@z Thu Jan 1 00:00:00 1970 From: Andreas Kemnade Subject: Re: power management problems in ehci-omap Date: Tue, 6 Feb 2018 07:42:01 +0100 Message-ID: <20180206074201.479405e7@aktux> References: <20180204000335.29812776@kemnade.info> <20180204093831.44322452@kemnade.info> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha256; boundary="Sig_/4wifI7Dt.qzmlWh8EmFXEBD"; protocol="application/pgp-signature" Return-path: In-Reply-To: Sender: linux-usb-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Michael Nazzareno Trimarchi Cc: USB list , Linux OMAP Mailing List , Discussions about the Letux Kernel List-Id: linux-omap@vger.kernel.org --Sig_/4wifI7Dt.qzmlWh8EmFXEBD Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: quoted-printable On Sun, 4 Feb 2018 09:43:45 +0100 Michael Nazzareno Trimarchi wrote: > Hi Andreas >=20 > On Sun, Feb 4, 2018 at 9:38 AM, Andreas Kemnade wr= ote: > > On Sun, 4 Feb 2018 00:10:50 +0100 > > Michael Nazzareno Trimarchi wrote: > > =20 > >> Hi > >> > >> On Sun, Feb 4, 2018 at 12:03 AM, Andreas Kemnade wrote: =20 > >> > Hi, > >> > > >> > I booted a 4.15 kernel without udev and loaded modules piece by piec= e 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 =20 > > nonsense sentence from me, was to tired. I would expect that removing t= he modules > > properly powers down the device. =20 > >> > > >> > Also suspend current increases by around 15mA if that module is load= ed. > >> > I tested with having everything disabled which is attached to that u= sb bus. > >> > =20 > >> > >> Do you have an LTE connected to the usb? > >> =20 > > Yes, there is a UMTS modem attached, but it was off during the tests. > > It did not enumerate on the modem. > > =20 >=20 > 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? > rechecked with a board with really nothing connected there Same behaviour Regards, Andreas --Sig_/4wifI7Dt.qzmlWh8EmFXEBD Content-Type: application/pgp-signature Content-Description: OpenPGP digital signature -----BEGIN PGP SIGNATURE----- iQIzBAEBCAAdFiEE7sDbhY5mwNpwYgrAfb1qx03ikyQFAlp5TjkACgkQfb1qx03i kyS6yw/9FAtrtPRrcP4m7bEEjOYdDASEiuF9lKttUdgJ4ptd6Wte1WJE0lgFRWdG 19wll/LB91N3Pd3lBlI1cBv+mt8KANAJcqoOLdKymRKGNmbxPXxfDswfMF7Ba5WT lDDngTEyHiNWV33ayR21UADA5m572DtcwBFrKfpVqCg4bASZ46Z/VB1zNBpROXyZ sbZOmS0Nh1rUIETelFv1mp/DKqltpRxrHZQdV3LP+46PpQS6QBHUPYG47cJphsS0 DcxeJvwuG2DG6pfdIXLR5ShPorrqNAAoIfo/mPxiZUUraKu+I469VbRKo+3UhEKA aq1p7k+v8nPzv/r7JOMX9mImUZyi60k/CUdHgNjhGTneCvwvqaIl+2TtQi69507I deS29IuartQLpIp3idLgTEYujvTgmfvQOyL+ix8szVux5Q1IZTE6bIgL5SC1824Q PJei4tFxAueLDloVo/9vW541BLSwo2YG8+c6PB6ua3MQuk55+LCDaduTCdO/Sc8c JzZjJ+7fPjzBguIo5Zd5H+JowkGKGJ+Jm1jspqTiQDVyMnbQHmG8vLwOk0doDCwK AExsCqNCsiO8BDO36tD8Z8mYuDwAX4VabaXIYbIZ8Z/Va1FDAAyQpByMC5W2Bt8a t6DomEbpMwUeb2JAPdCG/bttgQPZeqwU0KQXyxKVkWAfW1HArew= =qkdW -----END PGP SIGNATURE----- --Sig_/4wifI7Dt.qzmlWh8EmFXEBD-- -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html