linux-kernel - [PATCH 4.12 127/196] mtd: nand: tango: Fix incorrect use of SEQIN command

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Date:   Tue, 25 Jul 2017 12:22:06 -0700
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org,
        Boris Brezillon <boris.brezillon@...e-electrons.com>,
        Marc Gonzalez <marc_gonzalez@...madesigns.com>
Subject: [PATCH 4.12 127/196] mtd: nand: tango: Fix incorrect use of SEQIN command

4.12-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Boris Brezillon <boris.brezillon@...e-electrons.com>

commit a186493237a9d8559997c2f97c33c4716d602fd2 upstream.

SEQIN is supposed to be used when one wants to start programming a page.
What we want here is just to change the column within the page, which is
done with the RNDIN command.

Fixes: 6956e2385a16 ("mtd: nand: add tango NAND flash controller support")
Signed-off-by: Boris Brezillon <boris.brezillon@...e-electrons.com>
Acked-by: Marc Gonzalez <marc_gonzalez@...madesigns.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 drivers/mtd/nand/tango_nand.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/mtd/nand/tango_nand.c
+++ b/drivers/mtd/nand/tango_nand.c
@@ -340,7 +340,7 @@ static void aux_write(struct nand_chip *
 
 	if (!*buf) {
 		/* skip over "len" bytes */
-		chip->cmdfunc(mtd, NAND_CMD_SEQIN, *pos, -1);
+		chip->cmdfunc(mtd, NAND_CMD_RNDIN, *pos, -1);
 	} else {
 		tango_write_buf(mtd, *buf, len);
 		*buf += len;