From: Kamal Dasu kdasu.kdev@gmail.com
stable inclusion from stable-v5.10.111 commit 6c17f4ef3c4f662865ac99ad167a8b896ca70d2f category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I5GL1Z
Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=...
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[ 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 Signed-off-by: Zheng Zengkai zhengzengkai@huawei.com Reviewed-by: Wei Li liwei391@huawei.com --- 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 4a80f043b7b1..766b00350e39 100644 --- a/drivers/spi/spi-bcm-qspi.c +++ b/drivers/spi/spi-bcm-qspi.c @@ -1032,7 +1032,7 @@ 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 @@ -1051,7 +1051,7 @@ 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);