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[5.15,193/277] spi: bcm-qspi: fix MSPI only access with bcm_qspi_exec_mem_op()

Message ID 20220412062947.624220756@linuxfoundation.org
State Superseded
Headers show
Series None | expand

Commit Message

Greg Kroah-Hartman April 12, 2022, 6:29 a.m. UTC 
From: Kamal Dasu <kdasu.kdev@gmail.com>

[ Upstream commit 2c7d1b281286c46049cd22b43435cecba560edde ]

This fixes case where MSPI controller is used to access spi-nor
flash and BSPI block is not present.

Fixes: 5f195ee7d830 ("spi: bcm-qspi: Implement the spi_mem interface")
Signed-off-by: Kamal Dasu <kdasu.kdev@gmail.com>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Link: https://lore.kernel.org/r/20220328142442.7553-1-kdasu.kdev@gmail.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(-)
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Patch

diff --git a/drivers/spi/spi-bcm-qspi.c b/drivers/spi/spi-bcm-qspi.c
index ae8c86be7786..bd7c7fc73961 100644
--- a/drivers/spi/spi-bcm-qspi.c
+++ b/drivers/spi/spi-bcm-qspi.c
@@ -1033,7 +1033,7 @@  static int bcm_qspi_exec_mem_op(struct spi_mem *mem,
 	addr = op->addr.val;
 	len = op->data.nbytes;
 
-	if (bcm_qspi_bspi_ver_three(qspi) == true) {
+	if (has_bspi(qspi) && bcm_qspi_bspi_ver_three(qspi) == true) {
 		/*
 		 * The address coming into this function is a raw flash offset.
 		 * But for BSPI <= V3, we need to convert it to a remapped BSPI
@@ -1052,7 +1052,7 @@  static int bcm_qspi_exec_mem_op(struct spi_mem *mem,
 	    len < 4)
 		mspi_read = true;
 
-	if (mspi_read)
+	if (!has_bspi(qspi) || mspi_read)
 		return bcm_qspi_mspi_exec_mem_op(spi, op);
 
 	ret = bcm_qspi_bspi_set_mode(qspi, op, 0);