spi: hisi-sfc-v3xx: factor out bus config and transfer functions

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In hisi_sfc_v3xx_generic_exec_op(), we will write the data to the buffer,
configure and start the transfer, read the data to the buffer and check
whether occurs an error. Factor out the config and transfer start codes
as individual functions, to make the process a bit clearer.

Acked-by: John Garry <john.garry@huawei.com>
Signed-off-by: Yicong Yang <yangyicong@hisilicon.com>
Link: https://lore.kernel.org/r/1600950270-52536-3-git-send-email-yangyicong@hisilicon.com
Signed-off-by: Mark Brown <broonie@kernel.org>

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Yicong Yang 2020-09-24 20:24:28 +08:00 • committed by Mark Brown

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drivers/spi/spi-hisi-sfc-v3xx.c

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