[PATCH v2 1/2] mtd: spi-nor: spansion: use die erase for multi-die devices only

[tkuw584924 at gmail.com]

From: Takahiro Kuwano <takahiro.kuwano at infineon.com>

Die erase opcode is supported in multi-die devices only. For single die
devices, default chip erase opcode must be used.

In s25hx_t_late_init(), die erase opcode is set only when the device is
multi-die.

Fixes: 461d0babb544 ("mtd: spi-nor: spansion: enable die erase for multi die flashes")
Cc: stable at kernel.org
Reviewed-by: Pratyush Yadav <pratyush at kernel.org>
Reviewed-by: Tudor Ambarus <tudor.ambarus at linaro.org>
Reviewed-by: Miquel Raynal <miquel.raynal at bootlin.com>
Signed-off-by: Takahiro Kuwano <takahiro.kuwano at infineon.com>
---
 drivers/mtd/spi-nor/spansion.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/mtd/spi-nor/spansion.c b/drivers/mtd/spi-nor/spansion.c
index 8498c7003d88..b6023076903a 100644
--- a/drivers/mtd/spi-nor/spansion.c
+++ b/drivers/mtd/spi-nor/spansion.c
@@ -674,7 +674,9 @@ static int s25hx_t_late_init(struct spi_nor *nor)
 	params->ready = cypress_nor_sr_ready_and_clear;
 	cypress_nor_ecc_init(nor);
 
-	params->die_erase_opcode = SPINOR_OP_CYPRESS_DIE_ERASE;
+	if (params->n_dice > 1)
+		params->die_erase_opcode = SPINOR_OP_CYPRESS_DIE_ERASE;
+
 	return 0;
 }
 
-- 
2.43.0