spi: tegra114: add support for hw based cs

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Tegra SPI controller supports both HW and SW based CS control
for SPI transfers.

This patch adds support for HW based CS control where CS is driven
to active state during the transfer and is driven inactive at the
end of the transfer directly by the HW.

This patch enables the use of HW based CS only for single transfers
without cs_change request.

Signed-off-by: Sowjanya Komatineni <skomatineni@nvidia.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

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Sowjanya Komatineni 2019-05-13 22:03:53 -07:00 • committed by Mark Brown

parent 63c1440596

commit 1bf9f3c923

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drivers/spi/spi-tegra114.c

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