This is a note to let you know that I've just added the patch titled
mtd: spi-nor: fix spi_nor_spimem_setup_op() call in spi_nor_erase_{sector,chip}()
to the 5.18-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
mtd-spi-nor-fix-spi_nor_spimem_setup_op-call-in-spi_.patch
and it can be found in the queue-5.18 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 9ffad62595e29931c1a654764abbc0ccd52709b2
Author: Patrice Chotard <patrice.chotard@xxxxxxxxxxx>
Date: Wed Jun 29 15:30:13 2022 +0200
mtd: spi-nor: fix spi_nor_spimem_setup_op() call in spi_nor_erase_{sector,chip}()
[ Upstream commit f8cd9f632f4415b1e8838bdca8ab42cfb37a6584 ]
For erase operations, reg_proto must be used as indicated in
struct spi_nor description in spi-nor.h.
This issue was found when DT property spi-tx-bus-width is set to 4.
In this case the spi_mem_op->addr.buswidth is set to 4 for erase command
which is not correct.
Tested on stm32mp157c-ev1 board with mx66l51235f spi-nor.
Fixes: 0e30f47232ab ("mtd: spi-nor: add support for DTR protocol")
Signed-off-by: Patrice Chotard <patrice.chotard@xxxxxxxxxxx>
[ta: use nor->reg_proto in spi_nor_controller_ops_erase()]
Signed-off-by: Tudor Ambarus <tudor.ambarus@xxxxxxxxxxxxx>
Tested-by: Alexander Sverdlin <alexander.sverdlin@xxxxxxxxx>
Reviewed-by: Pratyush Yadav <p.yadav@xxxxxx>
Link: https://lore.kernel.org/r/20220629133013.3382393-1-patrice.chotard@xxxxxxxxxxx
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/mtd/spi-nor/core.c b/drivers/mtd/spi-nor/core.c
index c1630131c734..170182eb431e 100644
--- a/drivers/mtd/spi-nor/core.c
+++ b/drivers/mtd/spi-nor/core.c
@@ -177,7 +177,7 @@ int spi_nor_controller_ops_write_reg(struct spi_nor *nor, u8 opcode,
static int spi_nor_controller_ops_erase(struct spi_nor *nor, loff_t offs)
{
- if (spi_nor_protocol_is_dtr(nor->write_proto))
+ if (spi_nor_protocol_is_dtr(nor->reg_proto))
return -EOPNOTSUPP;
return nor->controller_ops->erase(nor, offs);
@@ -976,7 +976,7 @@ static int spi_nor_erase_chip(struct spi_nor *nor)
SPI_MEM_OP_NO_DUMMY,
SPI_MEM_OP_NO_DATA);
- spi_nor_spimem_setup_op(nor, &op, nor->write_proto);
+ spi_nor_spimem_setup_op(nor, &op, nor->reg_proto);
ret = spi_mem_exec_op(nor->spimem, &op);
} else {
@@ -1121,7 +1121,7 @@ int spi_nor_erase_sector(struct spi_nor *nor, u32 addr)
SPI_MEM_OP_NO_DUMMY,
SPI_MEM_OP_NO_DATA);
- spi_nor_spimem_setup_op(nor, &op, nor->write_proto);
+ spi_nor_spimem_setup_op(nor, &op, nor->reg_proto);
return spi_mem_exec_op(nor->spimem, &op);
} else if (nor->controller_ops->erase) {
