[PATCH v2 2/7] spi: spi-fsl-spi: Make sure in spi_fsl_setup that chipselect becomes inactive

Andreas Larsson
2013-02-07T13:13:59Z

This is needed for a device in SPI_CS_HIGH mode that otherwise could start out
active for the first transaction.

Signed-off-by: Andreas Larsson <andreas@gaisler.com>
---
drivers/spi/spi-fsl-spi.c | 4 ++++
1 files changed, 4 insertions(+), 0 deletions(-)

diff --git a/drivers/spi/spi-fsl-spi.c b/drivers/spi/spi-fsl-spi.c
index e9ae1d8..b63ce63 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;
}

--
1.7.0.4