spi: support CS timing for HW & SW mode

this patch supports the controller's HW CS and SW CS via use cs_gpio.

Signed-off-by: leilk.liu <leilk.liu@mediatek.com>
Link: https://lore.kernel.org/r/20210207030953.9297-3-leilk.liu@mediatek.com
Signed-off-by: Mark Brown <broonie@kernel.org>
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leilk.liu 2021-02-07 11:09:52 +08:00 • committed by Mark Brown
commit 0486d9f91d
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