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.c... 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 d97cdbc2b9de..eb5d7b3d1860 100644 --- a/drivers/mtd/spi-nor/core.c +++ b/drivers/mtd/spi-nor/core.c @@ -177,7 +177,7 @@ static 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); @@ -1195,7 +1195,7 @@ 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 { @@ -1340,7 +1340,7 @@ 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) {