spi: pxa2xx: Prepare for new Intel LPSS SPI type

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Some of the Intel LPSS SPI properties will be different in upcoming
platforms compared to existing Lynxpoint and BayTrail/Braswell. LPSS SPI
private registers will be at different offset and there will be changes in
individual registers and default FIFO thresholds too.

Add configuration for these differences and use them in runtime based on
LPSS SSP type. With this change private registers offset autodetection
becomes needless.

Signed-off-by: Jarkko Nikula <jarkko.nikula@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

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Jarkko Nikula 2015-06-04 16:55:11 +03:00 • committed by Mark Brown

parent 03fbf488ce

commit dccf736965

2 changed files with 60 additions and 49 deletions

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107

drivers/spi/spi-pxa2xx.c

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2

include/linux/pxa2xx_ssp.h

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