tree 224237a53eaa3e75c093430f967d5f2bd255f1f4
parent cd7bed00340475ee72a013a070e200e065085ef3
author Mika Westerberg <mika.westerberg@linux.intel.com> 1358850389 +0200
committer Mark Brown <broonie@opensource.wolfsonmicro.com> 1360325728 +0000

spi/pxa2xx: add support for DMA engine

To be able to use DMA with this driver on non-PXA platforms we implement
support for the generic DMA engine API. This lets user to use different DMA
engines with little or no modification to the driver.

Request lines and channel numbers can be passed to the driver from the
platform specific data.

The DMA engine implementation will be selected by default even on PXA
platform. User can select the legacy DMA API by enabling Kconfig option
CONFIG_SPI_PXA2XX_PXADMA.

Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Tested-by: Lu Cao <lucao@marvell.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>