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Subject[PATCH 1/2] spi: bcm-qspi: Convert to use CS GPIO descriptors
Date
Set use_gpio_descriptors to true and avoid asserting the native chip
select if the spi core has done it for us.

Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
---
drivers/spi/spi-bcm-qspi.c | 7 +++++--
1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/drivers/spi/spi-bcm-qspi.c b/drivers/spi/spi-bcm-qspi.c
index 7a3531856491..85bad70f59e3 100644
--- a/drivers/spi/spi-bcm-qspi.c
+++ b/drivers/spi/spi-bcm-qspi.c
@@ -803,7 +803,8 @@ static int bcm_qspi_bspi_exec_mem_op(struct spi_device *spi,
return -EIO;

from = op->addr.val;
- bcm_qspi_chip_select(qspi, spi->chip_select);
+ if (!spi->cs_gpiod)
+ bcm_qspi_chip_select(qspi, spi->chip_select);
bcm_qspi_write(qspi, MSPI, MSPI_WRITE_LOCK, 0);

/*
@@ -882,7 +883,8 @@ static int bcm_qspi_transfer_one(struct spi_master *master,
int slots;
unsigned long timeo = msecs_to_jiffies(100);

- bcm_qspi_chip_select(qspi, spi->chip_select);
+ if (!spi->cs_gpiod)
+ bcm_qspi_chip_select(qspi, spi->chip_select);
qspi->trans_pos.trans = trans;
qspi->trans_pos.byte = 0;

@@ -1234,6 +1236,7 @@ int bcm_qspi_probe(struct platform_device *pdev,
master->cleanup = bcm_qspi_cleanup;
master->dev.of_node = dev->of_node;
master->num_chipselect = NUM_CHIPSELECT;
+ master->use_gpio_descriptors = true;

qspi->big_endian = of_device_is_big_endian(dev->of_node);

--
2.24.0
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