Gwendal Grignou 8e9ccd8b0d stm32: spi: Add lock around spi_transaction
Like the implementation for mec1322, add a lock around spi_transaction.
It prevents 2 tasks from accessing a given bus at the same time.

BRANCH=smaug
TEST=Check the BMI160 FIFO corruption disappeared in SPI mode.
BUG=None

Change-Id: I9e8a9e39ca96ea56692e3125930ab05ae6ef143f
Signed-off-by: Gwendal Grignou <gwendal@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/289856
Reviewed-by: Vincent Palatin <vpalatin@chromium.org>
2015-08-01 02:50:29 +00:00
2015-05-07 00:00:47 +00:00
2015-07-30 19:58:09 +00:00
2015-07-25 17:45:22 +00:00
2012-05-11 09:11:52 -07:00
2014-04-02 19:58:53 +00:00
2014-05-15 05:20:14 +00:00

For an overview of the Embedded Controller firmware, refer to

http://www.chromium.org/chromium-os/2014-firmware-summit
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