diff mbox series

[v4,17/25] mtd: spi-nor: winbond: Prepare introduction of W25QxxRV-M parts

Message ID 20260902-winbond-v7-1-spi-nor-rv-addition-v4-17-779d35303dff@bootlin.com
State New
Headers show
Series mtd: spi-nor: QE handling cleanup + fixup reworks + Winbond RV chips addition | expand

Commit Message

Miquel Raynal Sept. 2, 2026, 4:59 p.m. UTC 
There is an ID collision between the JV and RV families. Both chips are
very similar in practice, it is mostly a matter of electrical
differences (mostly power consumption being lower).

As a significant difference, RV chips identify themselves as supporting
The new SFDP (rev F) field which forces an alternate write SR2 opcode
(0x31).

Since they share the IDs but not the names, we must hide the names using
a fixup.

Reviewed-by: Takahiro Kuwano <takahiro.kuwano@infineon.com>
Reviewed-by: Michael Walle <mwalle@kernel.org>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
---
 drivers/mtd/spi-nor/winbond.c | 2 ++
 1 file changed, 2 insertions(+)
diff mbox series

Patch

diff --git a/drivers/mtd/spi-nor/winbond.c b/drivers/mtd/spi-nor/winbond.c
index e51c050bacdf..90b106d53d02 100644
--- a/drivers/mtd/spi-nor/winbond.c
+++ b/drivers/mtd/spi-nor/winbond.c
@@ -618,6 +618,8 @@  static const struct spi_nor_fixup winbond_fixups[] = {
 	  .fixups = &winbond_nor_multi_die_fixups },
 	{ .id = SNOR_ID(0xef, 0x40, 0x22), .match = winbond_jv_match,
 	  .fixups = &winbond_nor_multi_die_fixups },
+	{ .id = SNOR_ID(0xef, 0x70), .match = winbond_rv_match,
+	  .fixups = &winbond_nor_partname_fixups },
 	{ .id = SNOR_ID(0xef, 0x70, 0x21), .match = winbond_jv_match,
 	  .fixups = &winbond_nor_multi_die_fixups },
 	{ .id = SNOR_ID(0xef, 0x70, 0x22), .match = winbond_jv_match,