From: Axel Lin <axel.lin@ingics.com>
Date: Thu, 13 Feb 2014 11:05:38 +0000 (+0800)
Subject: spi: fsl-spi: Convert to let spi core validate xfer->bits_per_word
X-Git-Tag: v3.15-rc1~147^2~5^6~1
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=f734394d861fe71eafa28d6c28199d9847c5a319;p=pandora-kernel.git

spi: fsl-spi: Convert to let spi core validate xfer->bits_per_word

Set bits_per_word_mask so spi core will reject transfers that attempt to use
an unsupported bits_per_word value.

fsl_spi_grlib_probe() may update mpc8xxx_spi->max_bits_per_word setting.
So set master->bits_per_word_mask after fsl_spi_grlib_probe().

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
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