From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date: Mon, 29 Sep 2014 18:06:44 +0000 (+0200)
Subject: tty: serial: 8250_omap: add custom DMA-RX callback
X-Git-Tag: omap-for-v3.19/fixes-rc1~86^2~148
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=0e31c8d173ab105f161f26d222eae6cad2aebf5f;p=pandora-kernel.git

tty: serial: 8250_omap: add custom DMA-RX callback

The omap needs a DMA request pending right away. If it is
enqueued once the bytes are in the FIFO then nothing will happen
and the FIFO will be later purged via RX-timeout interrupt.
This patch enqueues RX-DMA request on completion but not if it
was aborted on error. The first enqueue will happen in the driver
in startup.

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Reviewed-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

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