From: Tony Lindgren <tony@atomide.com>
To: Pavel Machek <pavel@ucw.cz>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
linux-kernel@vger.kernel.org, linux-serial@vger.kernel.org,
Alan Cox <alan@llwyncelyn.cymru>, Dan Williams <dcbw@redhat.com>,
Jiri Prchal <jiri.prchal@aksignal.cz>,
Jiri Slaby <jslaby@suse.cz>, Marcel Partap <mpartap@gmx.net>,
Merlijn Wajer <merlijn@wizzup.org>,
Michael Nazzareno Trimarchi <michael@amarulasolutions.com>,
Michael Scott <michael.scott@linaro.org>,
Peter Hurley <peter@hurleysoftware.com>,
Russ Gorby <russ.gorby@intel.com>,
Sascha Hauer <s.hauer@pengutronix.de>,
Sebastian Reichel <sre@kernel.org>
Subject: Re: [PATCH 1/2] tty: n_gsm: Fix long delays with control frame timeouts in ADM mode
Date: Mon, 9 Apr 2018 06:42:59 -0700 [thread overview]
Message-ID: <20180409134259.GO5700@atomide.com> (raw)
In-Reply-To: <20180409105407.GA15315@amd>
* Pavel Machek <pavel@ucw.cz> [180409 10:56]:
> Ok, I should have all that enabled. But droid4-ngsm still fails:
>
> 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..
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=0xff or on kernel cmdline?
> commit 984c7706ff180e33096c57183435d925cb644576 says:
>
> ARM: dts: omap4-droid4: Configure uart1 pins
>
> 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.
>
> ...am I still missing the OOB wake gpio support?
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.
Regards,
Tony
next prev parent reply other threads:[~2018-04-09 13:43 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-04-07 17:19 [PATCH 1/2] tty: n_gsm: Fix long delays with control frame timeouts in ADM mode Tony Lindgren
2018-04-07 17:19 ` [PATCH 2/2] tty: n_gsm: Fix DLCI handling for ADM mode if debug & 2 is not set Tony Lindgren
2018-04-08 9:02 ` [PATCH 1/2] tty: n_gsm: Fix long delays with control frame timeouts in ADM mode Pavel Machek
2018-04-08 16:50 ` Tony Lindgren
2018-04-08 19:06 ` Pavel Machek
2018-04-08 23:57 ` Tony Lindgren
2018-04-09 10:54 ` Pavel Machek
2018-04-09 13:42 ` Tony Lindgren [this message]
2018-04-10 11:09 ` Pavel Machek
2018-04-10 13:43 ` Tony Lindgren
2018-04-12 21:24 ` Pavel Machek
2018-04-13 0:24 ` Tony Lindgren
2018-04-16 8:44 ` Pavel Machek
2018-04-16 14:47 ` Tony Lindgren
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