From mboxrd@z Thu Jan 1 00:00:00 1970 From: Sebastian Andrzej Siewior Subject: Re: [PATCH v7] 8250-core based serial driver for OMAP + DMA Date: Sun, 17 Aug 2014 22:35:12 +0200 Message-ID: <20140817203512.GA24330@linutronix.de> References: <1408124563-31541-1-git-send-email-bigeasy@linutronix.de> <20140815181704.GH17769@csclub.uwaterloo.ca> <53EE5BF8.3010007@linutronix.de> <20140815202826.GC9239@atomide.com> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: QUOTED-PRINTABLE Return-path: Content-Disposition: inline In-Reply-To: <20140815202826.GC9239@atomide.com> Sender: linux-kernel-owner@vger.kernel.org To: Tony Lindgren Cc: Lennart Sorensen , linux-serial@vger.kernel.org, linux-kernel@vger.kernel.org, linux-omap@vger.kernel.org, linux-arm-kernel@lists.infradead.org, balbi@ti.com, Vinod Koul , Greg Kroah-Hartman List-Id: linux-serial@vger.kernel.org * Tony Lindgren | 2014-08-15 13:28:27 [-0700]: >> It configured the trigger levels to 1 for RX and 16 for TX. > >Hmm that weird RX trigger level is a workaround for lost characters. > >See commit 0ba5f66836 (tty: serial: OMAP: use a 1-byte RX FIFO >threshold in PIO mode :) > >There's paste test in that commit, I wonder if the 8250 drivers >can deal with it any better? I recall that I used it as a console and didn't see any missing chars. I will try test but I am traveling this week=E2=80=A6 >Regards, > >Tony Sebastian