[PATCH] spi: stm32_spi: Fix GPIO chipselect polarity handling

[Marek Vasut]

The GPIO chipselect signal polarity is handled by the GPIO core code,
the driver code is only responsible for asserting and deasserting the
GPIO. Do not invert the GPIO polarity in the driver code.

For example, In case CS GPIO is active low, then the DT must contain
GPIO_ACTIVE_LOW flag and the GPIO core code would set the GPIO accordingly.

Signed-off-by: Marek Vasut <ma...@denx.de>
Cc: Patrick Delaunay <patrick.delau...@foss.st.com>
Cc: Patrice Chotard <patrice.chot...@foss.st.com>
---
 drivers/spi/stm32_spi.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/spi/stm32_spi.c b/drivers/spi/stm32_spi.c
index fe5419e8518..0cb24546ca9 100644
--- a/drivers/spi/stm32_spi.c
+++ b/drivers/spi/stm32_spi.c
@@ -434,7 +434,7 @@ static int stm32_spi_xfer(struct udevice *slave, unsigned 
int bitlen,
 
        slave_plat = dev_get_parent_plat(slave);
        if (flags & SPI_XFER_BEGIN)
-               stm32_spi_set_cs(bus, slave_plat->cs, false);
+               stm32_spi_set_cs(bus, slave_plat->cs, true);
 
        /* Be sure to have data in fifo before starting data transfer */
        if (priv->tx_buf)
@@ -485,7 +485,7 @@ static int stm32_spi_xfer(struct udevice *slave, unsigned 
int bitlen,
        stm32_spi_stopxfer(bus);
 
        if (flags & SPI_XFER_END)
-               stm32_spi_set_cs(bus, slave_plat->cs, true);
+               stm32_spi_set_cs(bus, slave_plat->cs, false);
 
        return xfer_status;
 }
-- 
2.35.1