[PATCH v4 1/1] mtd: cfi_cmdset_0002: Change write buffer to check correct value

[smtpuser]

From: Tokunori Ikegami <ikegami at allied-telesis.co.jp>

For the word write it is checked if the chip has the correct value.
But it is not checked for the write buffer as only checked if ready.
To make sure for the write buffer change to check the value.
Also the checking if ready is not necessary now so remove it.

It is enough as this patch is only checking the last written word.
Since it is described by data sheets to check the operation status.

Signed-off-by: Tokunori Ikegami <ikegami at allied-telesis.co.jp>
Cc: Joakim Tjernlund <Joakim.Tjernlund at infinera.com>
Cc: Chris Packham <chris.packham at alliedtelesis.co.nz>
Cc: Brian Norris <computersforpeace at gmail.com>
Cc: David Woodhouse <dwmw2 at infradead.org>
Cc: Boris Brezillon <boris.brezillon at free-electrons.com>
Cc: Marek Vasut <marek.vasut at gmail.com>
Cc: Richard Weinberger <richard at nod.at>
Cc: Cyrille Pitchen <cyrille.pitchen at wedev4u.fr>
Cc: linux-mtd at lists.infradead.org
---
Changes since v3:
- Removed to check if chip ready.

Changes since v2:
- Just updated the patch to add v3 version into subject and desribe a changelog.

Changes since v1:
- Just changed to add Brian as Cc and the patch is sent to Boris-san as To

Changes since v0:
- Changed Split the part to change write buffer from the v1 patch

 drivers/mtd/chips/cfi_cmdset_0002.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/mtd/chips/cfi_cmdset_0002.c b/drivers/mtd/chips/cfi_cmdset_0002.c
index e397b80e40cc..1d6be8c63d39 100644
--- a/drivers/mtd/chips/cfi_cmdset_0002.c
+++ b/drivers/mtd/chips/cfi_cmdset_0002.c
@@ -1879,7 +1879,7 @@ static int __xipram do_write_buffer(struct map_info *map, struct flchip *chip,
 		if (time_after(jiffies, timeo) && !chip_ready(map, adr))
 			break;
 
-		if (chip_ready(map, adr)) {
+		if (chip_good(map, adr, datum)) {
 			xip_enable(map, chip, adr);
 			goto op_done;
 		}
-- 
2.16.1