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

From: Greg Kroah-Hartman
Date: Tue Jul 25 2017 - 15:46:38 EST


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

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

From: Boris Brezillon <boris.brezillon@xxxxxxxxxxxxxxxxxx>

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@xxxxxxxxxxxxxxxxxx>
Acked-by: Marc Gonzalez <marc_gonzalez@xxxxxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

---
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;