Rong Chang b3d0d05aa9 rose: spi: add SPI master halfduplex mode
This change adds 3-wire mode support in STM32 SPI master driver.

BUG=chromium:688979
TEST=manual
     enable CONFIG_SPI_HALFDUPLEX
     read id from SPI heatmap sensor
BRANCH=none

Change-Id: I09139dcbfe39a427721451db6842ea712abf2e33
Signed-off-by: Rong Chang <rongchang@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/444630
Reviewed-by: Wei-Ning Huang <wnhuang@chromium.org>
Reviewed-by: Vincent Palatin <vpalatin@chromium.org>
2017-05-22 05:02:46 -07:00
2016-11-10 21:28:33 -08:00
2012-05-11 09:11:52 -07:00
2014-04-02 19:58:53 +00:00
2015-12-08 20:05:05 -08:00

For an overview of the Embedded Controller firmware, refer to

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

For instructions on building from source, refer to

http://www.chromium.org/chromium-os/ec-development/getting-started-building-ec-images-quickly
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