[PATCH AUTOSEL 4.19 484/671] spi: bcm-qspi: Fix BSPI QUAD and DUAL mode support when using flex mode

Sasha Levin
2020-01-16T18:45:29Z

From: Rayagonda Kokatanur <rayagonda.kokatanur@broadcom.com>

[ Upstream commit 79629d0f7ce5b38515c1716911a0181f01b91102 ]

Fix data transfer width settings based on DT field 'spi-rx-bus-width'
to configure BSPI in single, dual or quad mode by using data width
and not the command width.

Fixes: 5f195ee7d830c ("spi: bcm-qspi: Implement the spi_mem interface")

Signed-off-by: Rayagonda Kokatanur <rayagonda.kokatanur@broadcom.com>
Link: https://lore.kernel.org/r/1565086070-28451-1-git-send-email-rayagonda.kokatanur@broadcom.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/spi/spi-bcm-qspi.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/spi/spi-bcm-qspi.c b/drivers/spi/spi-bcm-qspi.c
index 584bcb018a62..285a6f463013 100644
--- a/drivers/spi/spi-bcm-qspi.c
+++ b/drivers/spi/spi-bcm-qspi.c
@@ -354,7 +354,7 @@ static int bcm_qspi_bspi_set_flex_mode(struct bcm_qspi *qspi,
{
int bpc = 0, bpp = 0;
u8 command = op->cmd.opcode;
- int width = op->cmd.buswidth ? op->cmd.buswidth : SPI_NBITS_SINGLE;
+ int width = op->data.buswidth ? op->data.buswidth : SPI_NBITS_SINGLE;
int addrlen = op->addr.nbytes;
int flex_mode = 1;

@@ -992,7 +992,7 @@ static int bcm_qspi_exec_mem_op(struct spi_mem *mem,
if (mspi_read)
return bcm_qspi_mspi_exec_mem_op(spi, op);

- ret = bcm_qspi_bspi_set_mode(qspi, op, -1);
+ ret = bcm_qspi_bspi_set_mode(qspi, op, 0);

if (!ret)
ret = bcm_qspi_bspi_exec_mem_op(spi, op);
--
2.20.1