tree f56b1f5c10fb2dce70a3544ae7b7709ed4860e18
parent 1001354ca34179f3db924eb66672442a173147dc
author Gao Pan <pandy.gao@nxp.com> 1479822737 +0800
committer Mark Brown <broonie@kernel.org> 1479841996 +0000

spi: imx: add lpspi bus driver

This patch adds lpspi driver to support new i.MX products which use
lpspi instead of ecspi.

The lpspi can continue operating in stop mode when an appropriate
clock is available. It is also designed for low CPU overhead with
DMA offloading of FIFO register accesses.

Signed-off-by: Gao Pan <pandy.gao@nxp.com>
Reviewed-by: Fugang Duan <B38611@freescale.com>
Signed-off-by: Mark Brown <broonie@kernel.org>