When drivers didn't provide setup() method, SPI core should ensure
that CS line is driven in non-active state after spi_setup().
Signed-off-by: Ivan T. Ivanov <iiva...@mm-sol.com>
---
drivers/spi/spi.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c
index c64a3e5..bfba2d9 100644
--- a/drivers/spi/spi.c
+++ b/drivers/spi/spi.c
@@ -1895,6 +1895,8 @@ int spi_setup(struct spi_device *spi)
if (spi->master->setup)
status = spi->master->setup(spi);
+ else
+ spi_set_cs(spi, false);
dev_dbg(&spi->dev, "setup mode %d, %s%s%s%s%u bits/w, %u Hz max -->
%d\n",
(int) (spi->mode & (SPI_CPOL | SPI_CPHA)),
--
1.9.1
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