From: Andrew Bresticker <abrestic@chromium.org>
Date: Mon, 22 Dec 2014 19:35:16 +0000 (-0800)
Subject: spi: img-spfi: Select FIFO based on transfer length
X-Git-Tag: omap-for-v4.1/prcm-dts-mfd-syscon-fix~168^2~3^2
X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=549858ce76e31d5e2139e5588df976ee42607a0d;p=pandora-kernel.git

spi: img-spfi: Select FIFO based on transfer length

Since the 32-bit FIFO is deeper (64 bytes) than the 8-bit FIFO (16 bytes),
use the 32-bit FIFO when there are at least 32 bits remaining to be
transferred in PIO mode or when the transfer length is 32-bit aligned
in DMA mode.

Signed-off-by: Andrew Bresticker <abrestic@chromium.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
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