[PATCH 2/7] mtd: spi-nor: core: Report correct name in case of ID collisions

[Tudor Ambarus <tudor.ambarus@microchip.com>]

Provide a way to report the correct flash name in case of ID collisions.
There will be a single flash_info entry when flash IDs collide, and the
differentiation between the flash types will be made at runtime
if possible.

Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>
---
 drivers/mtd/spi-nor/core.c  | 5 ++++-
 include/linux/mtd/spi-nor.h | 2 ++
 2 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/drivers/mtd/spi-nor/core.c b/drivers/mtd/spi-nor/core.c
index 3d9f3698fb7b..d528e28995c6 100644
--- a/drivers/mtd/spi-nor/core.c
+++ b/drivers/mtd/spi-nor/core.c
@@ -3208,7 +3208,10 @@ int spi_nor_scan(struct spi_nor *nor, const char *name,
 	/* Configure OTP parameters and ops */
 	spi_nor_otp_init(nor);
 
-	dev_info(dev, "%s (%lld Kbytes)\n", info->name,
+	if (!nor->name)
+		nor->name = info->name;
+
+	dev_info(dev, "%s (%lld Kbytes)\n", nor->name,
 			(long long)mtd->size >> 10);
 
 	dev_dbg(dev,
diff --git a/include/linux/mtd/spi-nor.h b/include/linux/mtd/spi-nor.h
index f67457748ed8..bd92acdd1899 100644
--- a/include/linux/mtd/spi-nor.h
+++ b/include/linux/mtd/spi-nor.h
@@ -369,6 +369,7 @@ struct spi_nor_flash_parameter;
  * @bouncebuf:		bounce buffer used when the buffer passed by the MTD
  *                      layer is not DMA-able
  * @bouncebuf_size:	size of the bounce buffer
+ * @name:		used to point to correct name in case of ID collisions.
  * @info:		SPI NOR part JEDEC MFR ID and other info
  * @manufacturer:	SPI NOR manufacturer
  * @page_size:		the page size of the SPI NOR
@@ -399,6 +400,7 @@ struct spi_nor {
 	struct spi_mem		*spimem;
 	u8			*bouncebuf;
 	size_t			bouncebuf_size;
+	const char *name;
 	const struct flash_info	*info;
 	const struct spi_nor_manufacturer *manufacturer;
 	u32			page_size;
-- 
2.25.1


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