linux-kernel - [PATCH 5.4 069/222] mtd: spi-nor: Fix selection of 4-byte addressing opcodes on Spansion

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Message-Id: <20200122092838.664472744@linuxfoundation.org>
Date:   Wed, 22 Jan 2020 10:27:35 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Vignesh Raghavendra <vigneshr@...com>,
        Tudor Ambarus <tudor.ambarus@...rochip.com>,
        Miquel Raynal <miquel.raynal@...tlin.com>
Subject: [PATCH 5.4 069/222] mtd: spi-nor: Fix selection of 4-byte addressing opcodes on Spansion

From: Vignesh Raghavendra <vigneshr@...com>

commit 440b6d50254bdbd84c2a665c7f53ec69dd741a4f upstream.

mtd->size is still unassigned when running spansion_post_sfdp_fixups()
hook, therefore use nor->params.size to determine the size of flash device.

This makes sure that 4-byte addressing opcodes are used on Spansion
flashes that are larger than 16MiB and don't have SFDP 4BAIT table
populated.

Fixes: 92094ebc385e ("mtd: spi-nor: Add spansion_post_sfdp_fixups()")
Signed-off-by: Vignesh Raghavendra <vigneshr@...com>
Reviewed-by: Tudor Ambarus <tudor.ambarus@...rochip.com>
Signed-off-by: Miquel Raynal <miquel.raynal@...tlin.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 drivers/mtd/spi-nor/spi-nor.c |    4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

--- a/drivers/mtd/spi-nor/spi-nor.c
+++ b/drivers/mtd/spi-nor/spi-nor.c
@@ -4544,9 +4544,7 @@ static void spi_nor_info_init_params(str
 
 static void spansion_post_sfdp_fixups(struct spi_nor *nor)
 {
-	struct mtd_info *mtd = &nor->mtd;
-
-	if (mtd->size <= SZ_16M)
+	if (nor->params.size <= SZ_16M)
 		return;
 
 	nor->flags |= SNOR_F_4B_OPCODES;