linux-kernel - [PATCH 4.19 498/639] spi: bcm-qspi: Fix BSPI QUAD and DUAL mode support when using flex mode

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Date:   Fri, 24 Jan 2020 10:31:08 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org,
        Rayagonda Kokatanur <rayagonda.kokatanur@...adcom.com>,
        Mark Brown <broonie@...nel.org>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 4.19 498/639] spi: bcm-qspi: Fix BSPI QUAD and DUAL mode support when using flex mode

From: Rayagonda Kokatanur <rayagonda.kokatanur@...adcom.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@...adcom.com>
Link: https://lore.kernel.org/r/1565086070-28451-1-git-send-email-rayagonda.kokatanur@broadcom.com
Signed-off-by: Mark Brown <broonie@...nel.org>
Signed-off-by: Sasha Levin <sashal@...nel.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 584bcb018a62d..285a6f463013b 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