Re: [PATCH v7] 8250-core based serial driver for OMAP + DMA
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date: 2014-08-17 20:35:22
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linux-arm-kernel, linux-omap, lkml
* Tony Lindgren | 2014-08-15 13:28:27 [-0700]:
quoted
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