From 2764c500be0c1f057349ee6c81557239de060f87 Mon Sep 17 00:00:00 2001
From: Ilkka Koskinen <ilkka.koskinen@nokia.com>
Date: Tue, 19 Oct 2010 17:07:31 +0300
Subject: [PATCH] spi/omap2_mcspi: Verify TX reg is empty after TX only xfer
 with DMA

In case of TX only with DMA, the driver assumes that the data
has been transferred once DMA callback in invoked. However,
SPI's shift register may still contain data. Thus, the driver
is supposed to verify that the register is empty and the end of
the SPI transfer has been reached.

Signed-off-by: Ilkka Koskinen <ilkka.koskinen@nokia.com>
Tested-by: Tuomas Katila <ext-tuomas.2.katila@nokia.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
---
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