summaryrefslogtreecommitdiffstats
path: root/drivers/spi/spi-fsl-spi.c
diff options
context:
space:
mode:
authorAndreas Larsson2013-02-15 16:52:22 +0100
committerGrant Likely2013-04-07 11:07:54 +0200
commitf482cd0ff506cd74c75edceec4b737c46c60cb12 (patch)
tree4c32912b88a502f72257251c692b1e6dad28aa78 /drivers/spi/spi-fsl-spi.c
parentspi/spi-fsl-spi: Make driver usable in CPU mode outside of an FSL_SOC environ... (diff)
downloadkernel-qcow2-linux-f482cd0ff506cd74c75edceec4b737c46c60cb12.tar.gz
kernel-qcow2-linux-f482cd0ff506cd74c75edceec4b737c46c60cb12.tar.xz
kernel-qcow2-linux-f482cd0ff506cd74c75edceec4b737c46c60cb12.zip
spi/spi-fsl-spi: Make sure in spi_fsl_setup that chipselect becomes inactive
This is needed for a device in SPI_CS_HIGH mode that otherwise could start out active for the first transaction. Acked-by: Anton Vorontsov <anton@enomsg.org> Signed-off-by: Andreas Larsson <andreas@gaisler.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Diffstat (limited to 'drivers/spi/spi-fsl-spi.c')
-rw-r--r--drivers/spi/spi-fsl-spi.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/spi/spi-fsl-spi.c b/drivers/spi/spi-fsl-spi.c
index 9878911ee6af..1569f7defc73 100644
--- a/drivers/spi/spi-fsl-spi.c
+++ b/drivers/spi/spi-fsl-spi.c
@@ -387,6 +387,10 @@ static int fsl_spi_setup(struct spi_device *spi)
cs->hw_mode = hw_mode; /* Restore settings */
return retval;
}
+
+ /* Initialize chipselect - might be active for SPI_CS_HIGH mode */
+ fsl_spi_chipselect(spi, BITBANG_CS_INACTIVE);
+
return 0;
}