Patch "mtd: spi-nor: spansion: Enable JFFS2 write buffer for Infineon s25hx SEMPER flash" has been added to the 6.1-stable tree

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This is a note to let you know that I've just added the patch titled

    mtd: spi-nor: spansion: Enable JFFS2 write buffer for Infineon s25hx SEMPER flash

to the 6.1-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     mtd-spi-nor-spansion-enable-jffs2-write-buffer-for-infineon-s25hx-semper-flash.patch
and it can be found in the queue-6.1 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.


>From 4199c1719e24e73be0acc8b0146fc31ad8af9771 Mon Sep 17 00:00:00 2001
From: Takahiro Kuwano <Takahiro.Kuwano@xxxxxxxxxxxx>
Date: Thu, 6 Apr 2023 15:17:45 +0900
Subject: mtd: spi-nor: spansion: Enable JFFS2 write buffer for Infineon s25hx SEMPER flash

From: Takahiro Kuwano <Takahiro.Kuwano@xxxxxxxxxxxx>

commit 4199c1719e24e73be0acc8b0146fc31ad8af9771 upstream.

Infineon(Cypress) SEMPER NOR flash family has on-die ECC and its program
granularity is 16-byte ECC data unit size. JFFS2 supports write buffer
mode for ECC'd NOR flash. Provide a way to clear the MTD_BIT_WRITEABLE
flag in order to enable JFFS2 write buffer mode support.

Fixes: b6b23833fc42 ("mtd: spi-nor: spansion: Add s25hl-t/s25hs-t IDs and fixups")
Suggested-by: Tudor Ambarus <tudor.ambarus@xxxxxxxxxx>
Signed-off-by: Takahiro Kuwano <Takahiro.Kuwano@xxxxxxxxxxxx>
Cc: stable@xxxxxxxxxxxxxxx
Link: https://lore.kernel.org/r/a1cc128e094db4ec141f85bd380127598dfef17e.1680760742.git.Takahiro.Kuwano@xxxxxxxxxxxx
Signed-off-by: Tudor Ambarus <tudor.ambarus@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
 drivers/mtd/spi-nor/spansion.c |    7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

--- a/drivers/mtd/spi-nor/spansion.c
+++ b/drivers/mtd/spi-nor/spansion.c
@@ -249,13 +249,10 @@ static void s25hx_t_post_sfdp_fixup(stru
 
 static void s25hx_t_late_init(struct spi_nor *nor)
 {
-	struct spi_nor_flash_parameter *params = nor->params;
-
 	/* Fast Read 4B requires mode cycles */
-	params->reads[SNOR_CMD_READ_FAST].num_mode_clocks = 8;
+	nor->params->reads[SNOR_CMD_READ_FAST].num_mode_clocks = 8;
 
-	/* The writesize should be ECC data unit size */
-	params->writesize = 16;
+	cypress_nor_ecc_init(nor);
 }
 
 static struct spi_nor_fixups s25hx_t_fixups = {


Patches currently in stable-queue which might be from Takahiro.Kuwano@xxxxxxxxxxxx are

queue-6.1/mtd-spi-nor-spansion-enable-jffs2-write-buffer-for-infineon-s25hx-semper-flash.patch



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