spi: fsl: Fix GPIO descriptor support

[ Upstream commit f106904968e2a075e64653b9b79dda9f0f070ab5 ]

This makes the driver actually support looking up GPIO
descriptor. A coding mistake in the initial descriptor
support patch was that it was failing to turn on the very
feature it was implementing. Mea culpa.

Cc: Christophe Leroy <christophe.leroy@c-s.fr>
Reported-by: Christophe Leroy <christophe.leroy@c-s.fr>
Fixes: 0f0581b24bd0 ("spi: fsl: Convert to use CS GPIO descriptors")
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Tested-by: Christophe Leroy <christophe.leroy@c-s.fr>
Link: https://lore.kernel.org/r/20191128083718.39177-1-linus.walleij@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/drivers/spi/spi-fsl-spi.c b/drivers/spi/spi-fsl-spi.c
index 2d56387..ad1abea 100644 (file)
--- a/drivers/spi/spi-fsl-spi.c
+++ b/drivers/spi/spi-fsl-spi.c
@@ -612,6 +612,7 @@ static struct spi_master * fsl_spi_probe(struct device *dev,
        master->setup = fsl_spi_setup;
        master->cleanup = fsl_spi_cleanup;
        master->transfer_one_message = fsl_spi_do_one_msg;
+       master->use_gpio_descriptors = true;
 
        mpc8xxx_spi = spi_master_get_devdata(master);
        mpc8xxx_spi->max_bits_per_word = 32;