From 27fb2313f28d8c82adace68bf49f12fe810ba58c Mon Sep 17 00:00:00 2001 From: Chris Packham Date: Thu, 7 Nov 2019 17:42:34 +1300 Subject: spi: bcm-qspi: Convert to use CS GPIO descriptors 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 Link: https://lore.kernel.org/r/20191107044235.4864-2-chris.packham@alliedtelesis.co.nz Signed-off-by: Mark Brown --- drivers/spi/spi-bcm-qspi.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) (limited to 'drivers/spi') 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); -- cgit