linux-kernel - [PATCH 4/4] mtd: nand: mxc_nand: disable subpage reads

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Date: Wed, 17 Apr 2024 09:13:31 +0200
From: Sascha Hauer <s.hauer@...gutronix.de>
To: Miquel Raynal <miquel.raynal@...tlin.com>, 
 Richard Weinberger <richard@....at>, Vignesh Raghavendra <vigneshr@...com>
Cc: linux-mtd@...ts.infradead.org, linux-kernel@...r.kernel.org, 
 Sascha Hauer <s.hauer@...gutronix.de>
Subject: [PATCH 4/4] mtd: nand: mxc_nand: disable subpage reads

The NAND core enabled subpage reads when a largepage NAND is used with
SOFT_ECC. The i.MX NAND controller doesn't support subpage reads, so
clear the flag again.

Signed-off-by: Sascha Hauer <s.hauer@...gutronix.de>
---
 drivers/mtd/nand/raw/mxc_nand.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/mtd/nand/raw/mxc_nand.c b/drivers/mtd/nand/raw/mxc_nand.c
index f44c130dca18d..19b46210bd194 100644
--- a/drivers/mtd/nand/raw/mxc_nand.c
+++ b/drivers/mtd/nand/raw/mxc_nand.c
@@ -1667,6 +1667,8 @@ static int mxcnd_probe(struct platform_device *pdev)
 	if (err)
 		goto escan;
 
+	this->options &= ~NAND_SUBPAGE_READ;
+
 	/* Register the partitions */
 	err = mtd_device_parse_register(mtd, part_probes, NULL, NULL, 0);
 	if (err)

-- 
2.39.2