spi: imx: add devicetree binding for lpspi

Add a binding document for lpspi driver

Signed-off-by: Gao Pan <pandy.gao@nxp.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Gao Pan 2016-11-22 21:52:16 +08:00 • committed by Mark Brown
commit a17efbc5ef