Commits
Jarkko Nikula committed 8b136baa589
spi: pxa2xx: Detect number of enabled Intel LPSS SPI chip select signals SPI capabilities register located in private registers space of newer Intel LPSS SPI host controllers tell in register bits 12:9 which chip select signals are enabled. Use that information for detecting the number of chip selects. For simplicity we assume chip selects are enabled one after another without disabled chip selects between. For instance CS0 | CS1 | CS2 but not CS0 | CS1 | CS3. Signed-off-by: Jarkko Nikula <jarkko.nikula@linux.intel.com> Signed-off-by: Mark Brown <broonie@kernel.org>