From: Dirk Behme <dirk.behme@de.bosch.com>
Date: Tue, 9 Dec 2014 09:11:31 +0000 (+0900)
Subject: serial: imx: disable TDMAEN in imx_flush_buffer()
X-Git-Tag: fixes-v4.0-rc1~98^2~89
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=a2c718ce6a61f759fc47d632bcc3d8cf6b244581;p=pandora-kernel.git

serial: imx: disable TDMAEN in imx_flush_buffer()

Terminating the DMA, make sure the interrupt is disabled, too.
This fixes random kernel Oops due to dma_tx_call() called for
invalid transmissions.

If we disable the TDMAEN, make sure it's enabled again if a TX
DMA is started.

Signed-off-by: Jiada Wang <jiada_wang@mentor.com>
Signed-off-by: Dirk Behme <dirk.behme@de.bosch.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

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