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Tue, 10 Apr 2018 07:09:46 -0400 Received: from atrey.karlin.mff.cuni.cz ([195.113.26.193]:47206 "EHLO atrey.karlin.mff.cuni.cz" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752591AbeDJLJq (ORCPT ); Tue, 10 Apr 2018 07:09:46 -0400 Date: Tue, 10 Apr 2018 13:09:44 +0200 From: Pavel Machek To: Tony Lindgren Cc: Greg Kroah-Hartman , linux-kernel@vger.kernel.org, linux-serial@vger.kernel.org, Alan Cox , Dan Williams , Jiri Prchal , Jiri Slaby , Marcel Partap , Merlijn Wajer , Michael Nazzareno Trimarchi , Michael Scott , Peter Hurley , Russ Gorby , Sascha Hauer , Sebastian Reichel Subject: Re: [PATCH 1/2] tty: n_gsm: Fix long delays with control frame timeouts in ADM mode Message-ID: <20180410110944.GB13697@amd> References: <20180407171951.122759-1-tony@atomide.com> <20180408090259.GA8185@amd> <20180408165038.GM5700@atomide.com> <20180408190600.GA24342@amd> <20180408235740.GN5700@atomide.com> <20180409105407.GA15315@amd> <20180409134259.GO5700@atomide.com> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="TRYliJ5NKNqkz5bu" Content-Disposition: inline In-Reply-To: <20180409134259.GO5700@atomide.com> User-Agent: Mutt/1.5.23 (2014-03-12) Sender: linux-serial-owner@vger.kernel.org X-Mailing-List: linux-serial@vger.kernel.org X-getmail-retrieved-from-mailbox: INBOX X-Mailing-List: linux-kernel@vger.kernel.org List-ID: --TRYliJ5NKNqkz5bu Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Mon 2018-04-09 06:42:59, Tony Lindgren wrote: > * Pavel Machek [180409 10:56]: > > Ok, I should have all that enabled. But droid4-ngsm still fails: > >=20 > > user@devuan:/my/droid4-ngsm$ sudo ./droid4-ngsm > > Starting ngsm.. > > Testing ngsm.. > > Could not open /dev/gsmtty1: Level 2 halted > > Trying to start ngsm again: Level 2 halted > > Starting ngsm.. >=20 > I guess you must have phy-mapphone-mdm6600 enabled as you a have > working modem over USB. What do you see in dmesg if you enable n_gsm > debug with modprobe n_gsm debug=3D0xff or on kernel cmdline? Ok, I guess I can do that, but first: Should the modem respond to AT commands on ttyS0? I launched minicom (115200 8N1) and I'm not getting any responses. > > commit 984c7706ff180e33096c57183435d925cb644576 says: > >=20 > > ARM: dts: omap4-droid4: Configure uart1 pins > >=20 > > These are needed to use the n_gsm driver for TS 27.010 UART > > multiplexing. Note that support for the OOB wake gpio is still > > missing so the UART is not yet usable for n_gsm. > >=20 > > ...am I still missing the OOB wake gpio support? >=20 > We can get away without OOB wake gpio for a while as mdm6600 is not > yet suspended over USB. But if you have manually suspended mdm6600 > USB interface via /sys, then it won't respond properly on n_gsm > either. Ahha, ok. Thanks, Pavel --=20 (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blo= g.html --TRYliJ5NKNqkz5bu Content-Type: application/pgp-signature; name="signature.asc" Content-Description: Digital signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iEYEARECAAYFAlrMm3gACgkQMOfwapXb+vIw6gCgnDnIP/cYLwxrnivEeynZwaDh iMIAn2BaGyGv24+nr5SbOWpWXBHsnUFs =99rx -----END PGP SIGNATURE----- --TRYliJ5NKNqkz5bu--