From: Mika Westerberg <mika.westerberg@iki.fi>
Date: Sun, 29 May 2011 10:10:06 +0000 (+0300)
Subject: spi/ep93xx: add DMA support
X-Git-Tag: v3.1-rc1~92^2^2~32
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=d41071575b0b20b780bb0e8e7e70c62c1b07a883;p=pandora-kernel.git

spi/ep93xx: add DMA support

This patch adds DMA support for the EP93xx SPI driver. By default the DMA is
not enabled but it can be enabled by setting ep93xx_spi_info.use_dma to true
in board configuration file.

Note that the SPI driver still uses PIO for small transfers (<= 8 bytes) for
performance reasons.

Signed-off-by: Mika Westerberg <mika.westerberg@iki.fi>
Acked-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Grant Likely <grant.likely@secretlab.ca>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
---

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