tree 297615bf836bef7798649ec1932b225d01eed60b
parent b7d3d45654c4401283086f71ea0077188e5b3e1f
author Johannes Holland <johannes.holland@infineon.com> 1589203346 +0200
committer Jagan Teki <jagan@amarulasolutions.com> 1594308486 +0530

spi: add support for all spi modes with soft spi

The spi bitbanging driver did not implement all spi modes properly. Add
code to support all spi modes, honoring soft_spi_set_mode() and
defaulting to spi mode 0. Previously, CPHA was implemented inversely
(defaulting to CPHA=1) and CPOL=1 was hardcoded.

Signed-off-by: Johannes Holland <johannes.holland@infineon.com>
Reviewed-by: Jagan Teki <jagan@amarulasolutions.com>