[PATCH 4.9 040/101] mtd: cfi_cmdset_0002: Change write buffer to check correct value
4.9-stable review patch. If anyone has any objections, please let me know.
--
From: Tokunori Ikegami
commit dfeae1073583dc35c33b32150e18b7048bbb37e6 upstream.
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.
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
Reviewed-by: Joakim Tjernlund
Cc: Chris Packham
Cc: Brian Norris
Cc: David Woodhouse
Cc: Boris Brezillon
Cc: Marek Vasut
Cc: Richard Weinberger
Cc: Cyrille Pitchen
Cc: linux-...@lists.infradead.org
Cc: sta...@vger.kernel.org
Signed-off-by: Boris Brezillon
Signed-off-by: Greg Kroah-Hartman
---
drivers/mtd/chips/cfi_cmdset_0002.c |2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/mtd/chips/cfi_cmdset_0002.c
+++ b/drivers/mtd/chips/cfi_cmdset_0002.c
@@ -1876,7 +1876,7 @@ static int __xipram do_write_buffer(stru
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;
}
[PATCH 4.9 040/101] mtd: cfi_cmdset_0002: Change write buffer to check correct value
4.9-stable review patch. If anyone has any objections, please let me know.
--
From: Tokunori Ikegami
commit dfeae1073583dc35c33b32150e18b7048bbb37e6 upstream.
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.
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
Reviewed-by: Joakim Tjernlund
Cc: Chris Packham
Cc: Brian Norris
Cc: David Woodhouse
Cc: Boris Brezillon
Cc: Marek Vasut
Cc: Richard Weinberger
Cc: Cyrille Pitchen
Cc: linux-...@lists.infradead.org
Cc: sta...@vger.kernel.org
Signed-off-by: Boris Brezillon
Signed-off-by: Greg Kroah-Hartman
---
drivers/mtd/chips/cfi_cmdset_0002.c |2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/mtd/chips/cfi_cmdset_0002.c
+++ b/drivers/mtd/chips/cfi_cmdset_0002.c
@@ -1876,7 +1876,7 @@ static int __xipram do_write_buffer(stru
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;
}
