Messages in this thread Patch in this message | | | From | Greg Kroah-Hartman <> | Subject | [PATCH 5.19 0853/1157] mtd: spi-nor: fix spi_nor_spimem_setup_op() call in spi_nor_erase_{sector,chip}() | Date | Mon, 15 Aug 2022 20:03:29 +0200 |
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From: Patrice Chotard <patrice.chotard@foss.st.com>
[ 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@foss.st.com> [ta: use nor->reg_proto in spi_nor_controller_ops_erase()] Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com> Tested-by: Alexander Sverdlin <alexander.sverdlin@nokia.com> Reviewed-by: Pratyush Yadav <p.yadav@ti.com> Link: https://lore.kernel.org/r/20220629133013.3382393-1-patrice.chotard@foss.st.com Signed-off-by: Sasha Levin <sashal@kernel.org> --- drivers/mtd/spi-nor/core.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/mtd/spi-nor/core.c b/drivers/mtd/spi-nor/core.c index 502967c76c5f..e758ebfe1a9f 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); @@ -972,7 +972,7 @@ static int spi_nor_erase_chip(struct spi_nor *nor) if (nor->spimem) { struct spi_mem_op op = SPI_NOR_CHIP_ERASE_OP; - 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 { @@ -1115,7 +1115,7 @@ int spi_nor_erase_sector(struct spi_nor *nor, u32 addr) SPI_NOR_SECTOR_ERASE_OP(nor->erase_opcode, nor->addr_width, addr); - 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) { -- 2.35.1
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