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authorAndreas Larsson <andreas@gaisler.com>2013-02-15 16:52:22 +0100
committerGrant Likely <grant.likely@secretlab.ca>2013-04-07 10:07:54 +0100
commitf482cd0ff506cd74c75edceec4b737c46c60cb12 (patch)
tree4c32912b88a502f72257251c692b1e6dad28aa78 /drivers/spi
parente8beacbb85a5c1de1117400c5ddb450514a8372c (diff)
downloadop-kernel-dev-f482cd0ff506cd74c75edceec4b737c46c60cb12.zip
op-kernel-dev-f482cd0ff506cd74c75edceec4b737c46c60cb12.tar.gz
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')
-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 9878911..1569f7d 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;
}
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