From: Robert Marko <robert.marko@xxxxxxxxxx>
[ Upstream commit b40af6183b685b0cf7870987b858de0d48db9ea0 ]
Most of the device with QUP SPI adapter are actually using GPIO-s for
chip select.
However, this stopped working after ("spi: Retire legacy GPIO handling")
as it introduced a check on ->use_gpio_descriptors flag and since spi-qup
driver does not set the flag it meant that all of boards using GPIO-s and
with QUP adapter SPI devices stopped working.
So, to enable using GPIO-s again set ->use_gpio_descriptors to true and
populate ->max_native_cs.
Fixes: f48dc6b96649 ("spi: Retire legacy GPIO handling")
Signed-off-by: Robert Marko <robert.marko@xxxxxxxxxx>
Cc: luka.perkov@xxxxxxxxxx
Reviewed-by: Linus Walleij <linus.walleij@xxxxxxxxxx>
Link: https://lore.kernel.org/r/20221006194819.1536932-1-robert.marko@xxxxxxxxxx
Signed-off-by: Mark Brown <broonie@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/spi/spi-qup.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/spi/spi-qup.c b/drivers/spi/spi-qup.c
index 7d89510dc3f0..678dc51ef017 100644
--- a/drivers/spi/spi-qup.c
+++ b/drivers/spi/spi-qup.c
@@ -1057,6 +1057,8 @@ static int spi_qup_probe(struct platform_device *pdev)
else
master->num_chipselect = num_cs;
+ master->use_gpio_descriptors = true;
+ master->max_native_cs = SPI_NUM_CHIPSELECTS;
master->bus_num = pdev->id;
master->mode_bits = SPI_CPOL | SPI_CPHA | SPI_CS_HIGH | SPI_LOOP;
master->bits_per_word_mask = SPI_BPW_RANGE_MASK(4, 32);
--
2.35.1
