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Rui Miguel Silva 3a238fc784 greybus: spi: add inprogress bit to xfer_flags When a SPI transfer needs to be split by more than one greybus spi transfer operation, we need to indicate it so the controller can handle the chip select lines correctly. Add a new bit to indicate it, GB_SPI_XFER_INPROGRESS, and create an helper function to calculate when the transfer is done. As we need this information also in other places. Signed-off-by: Rui Miguel Silva <rui.silva@linaro.org> Reviewed-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>	History 2016-05-16 20:02:58 -07:00
drivers/staging/greybus	greybus: spi: add inprogress bit to xfer_flags	2016-05-16 20:02:58 -07:00

Rui Miguel Silva 3a238fc784 greybus: spi: add inprogress bit to xfer_flags

When a SPI transfer needs to be split by more than one greybus spi
transfer operation, we need to indicate it so the controller can handle
the chip select lines correctly.

Add a new bit to indicate it, GB_SPI_XFER_INPROGRESS, and create an
helper function to calculate when the transfer is done. As we need this
information also in other places.

Signed-off-by: Rui Miguel Silva <rui.silva@linaro.org>
Reviewed-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>

History

2016-05-16 20:02:58 -07:00

drivers/staging/greybus

greybus: spi: add inprogress bit to xfer_flags

2016-05-16 20:02:58 -07:00