From mboxrd@z Thu Jan 1 00:00:00 1970 From: bigeasy@linutronix.de (Sebastian Andrzej Siewior) Date: Sun, 17 Aug 2014 22:35:12 +0200 Subject: [PATCH v7] 8250-core based serial driver for OMAP + DMA In-Reply-To: <20140815202826.GC9239@atomide.com> References: <1408124563-31541-1-git-send-email-bigeasy@linutronix.de> <20140815181704.GH17769@csclub.uwaterloo.ca> <53EE5BF8.3010007@linutronix.de> <20140815202826.GC9239@atomide.com> Message-ID: <20140817203512.GA24330@linutronix.de> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.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? >Regards, > >Tony Sebastian