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spi: McSPI saves CHCONFx too
Previous restore was lazy and only restored CHxCONF when it was needed by
a specific chip select. This could cause occasional errors on an SPI bus
where multiple chip selects are in use.
Signed-off-by: Tero Kristo <tero.kristo@nokia.com>
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>