From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-3.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id D4C92C8300A for ; Thu, 30 Apr 2020 11:35:03 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id B363F2076D for ; Thu, 30 Apr 2020 11:35:03 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726809AbgD3LfC (ORCPT ); Thu, 30 Apr 2020 07:35:02 -0400 Received: from relay5-d.mail.gandi.net ([217.70.183.197]:33831 "EHLO relay5-d.mail.gandi.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726500AbgD3LfC (ORCPT ); Thu, 30 Apr 2020 07:35:02 -0400 X-Originating-IP: 87.231.134.186 Received: from localhost (87-231-134-186.rev.numericable.fr [87.231.134.186]) (Authenticated sender: gregory.clement@bootlin.com) by relay5-d.mail.gandi.net (Postfix) with ESMTPSA id A23DF1C0006; Thu, 30 Apr 2020 11:35:00 +0000 (UTC) From: Gregory CLEMENT To: Greg Kroah-Hartman , Jiri Slaby , linux-kernel@vger.kernel.org Cc: Thomas Petazzoni , Gregory CLEMENT Subject: [PATCH 0/3] TTY improve n_gsm support Date: Thu, 30 Apr 2020 13:34:29 +0200 Message-Id: <20200430113433.2162886-1-gregory.clement@bootlin.com> X-Mailer: git-send-email 2.26.1 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hello, This series if patch improve n_gms support especially with TELIT LE910. However the fix should benefit to any modem supporting cmux. The first patch is just about improving debugging output. The second one removes a tty optimization which make the LE910 hang. The last one fixes an issue observed on the LE910 but should benefit to all the modem. We observed that pretty quickly the transfer done using the virtual tty were blocked. We found that it was due of a wakeup to the real tty. Without this fix, the real tty wait for indefinitely. Gregory Gregory CLEMENT (3): tty: n_gsm: Improve debug output tty: n_gsm: Fix SOF skipping tty: n_gsm: Fix waking up upper tty layer when room available drivers/tty/n_gsm.c | 59 +++++++++++++++++++++++++++------------------ 1 file changed, 35 insertions(+), 24 deletions(-) -- 2.26.1