spi: altera: add 32bit data width transfer support.

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Add support for 32bit width data register, then it supports 32bit
data width spi slave device and spi transfers.

Signed-off-by: Xu Yilun <yilun.xu@intel.com>
Signed-off-by: Wu Hao <hao.wu@intel.com>
Signed-off-by: Matthew Gerlach <matthew.gerlach@linux.intel.com>
Signed-off-by: Russ Weight <russell.h.weight@intel.com>
Reviewed-by: Tom Rix <trix@redhat.com>
Link: https://lore.kernel.org/r/1591845911-10197-2-git-send-email-yilun.xu@intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>

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Xu Yilun 2020-06-11 11:25:06 +08:00 • committed by Mark Brown

parent 064e8af715

commit 3011d31475

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drivers/spi/spi-altera.c

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