spi: quad: Make DT properties optional
authorMark Brown <broonie@linaro.org>
Fri, 30 Aug 2013 22:19:40 +0000 (23:19 +0100)
committerMark Brown <broonie@linaro.org>
Sat, 31 Aug 2013 00:31:40 +0000 (01:31 +0100)
commita822e99c70f448c4068ea85bb195dac0b2eb3afe
tree4fd6620e3d1412196acc0142dbf60337c310543f
parentd5ee722ab942451929ccf5bec4fb41f6d044b5c7
spi: quad: Make DT properties optional

The addition SPI quad support made the DT properties mandatory, breaking
compatibility with existing systems. Fix that by making them optional,
also improving the error messages while we're at it.

Signed-off-by: Mark Brown <broonie@linaro.org>
Tested-by: Stephen Warren <swarren@nvidia.com>
drivers/spi/spi.c