[PATCH] mtd: spi-nor: core: Add an error message when failing to exit the 4-byte address mode

From: Tudor Ambarus
Date: Wed Jul 27 2022 - 23:02:10 EST


Add an error message when failing to exit the 4-byte address mode. Do not
stop the execution and go through the spi_nor_soft_reset() method if used,
in the hope that the flash will default to 3-byte address mode after the
reset.

Suggested-by: Pratyush Yadav <p.yadav@xxxxxx>
Signed-off-by: Tudor Ambarus <tudor.ambarus@xxxxxxxxxxxxx>
---
drivers/mtd/spi-nor/core.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/mtd/spi-nor/core.c b/drivers/mtd/spi-nor/core.c
index f2c64006f8d7..1cdbdad97136 100644
--- a/drivers/mtd/spi-nor/core.c
+++ b/drivers/mtd/spi-nor/core.c
@@ -2841,7 +2841,8 @@ void spi_nor_restore(struct spi_nor *nor)
/* restore the addressing mode */
if (nor->addr_nbytes == 4 && !(nor->flags & SNOR_F_4B_OPCODES) &&
nor->flags & SNOR_F_BROKEN_RESET)
- nor->params->set_4byte_addr_mode(nor, false);
+ if (nor->params->set_4byte_addr_mode(nor, false))
+ dev_err(nor->dev, "Failed to exit 4-byte address mode\n");

if (nor->flags & SNOR_F_SOFT_RESET)
spi_nor_soft_reset(nor);
--
2.25.1