From 43ab8d17cebc368d72a5b1b6fee2024044f888ce Mon Sep 17 00:00:00 2001
From: Jiri Slaby <jslaby@suse.cz>
Date: Apr 20 2023 11:00:13 +0000
Subject: mtd: rawnand: stm32_fmc2: remove unsupported EDO mode

(bsc#1012628).

---

diff --git a/patches.kernel.org/6.2.12-023-mtd-rawnand-stm32_fmc2-remove-unsupported-EDO-.patch b/patches.kernel.org/6.2.12-023-mtd-rawnand-stm32_fmc2-remove-unsupported-EDO-.patch
new file mode 100644
index 0000000..fba8525
--- /dev/null
+++ b/patches.kernel.org/6.2.12-023-mtd-rawnand-stm32_fmc2-remove-unsupported-EDO-.patch
@@ -0,0 +1,41 @@
+From: Christophe Kerello <christophe.kerello@foss.st.com>
+Date: Tue, 28 Mar 2023 17:58:18 +0200
+Subject: [PATCH] mtd: rawnand: stm32_fmc2: remove unsupported EDO mode
+References: bsc#1012628
+Patch-mainline: 6.2.12
+Git-commit: f71e0e329c152c7f11ddfd97ffc62aba152fad3f
+
+commit f71e0e329c152c7f11ddfd97ffc62aba152fad3f upstream.
+
+Remove the EDO mode support from as the FMC2 controller does not
+support the feature.
+
+Signed-off-by: Christophe Kerello <christophe.kerello@foss.st.com>
+Fixes: 2cd457f328c1 ("mtd: rawnand: stm32_fmc2: add STM32 FMC2 NAND flash controller driver")
+Cc: stable@vger.kernel.org #v5.4+
+Reviewed-by: Tudor Ambarus <tudor.ambarus@linaro.org>
+Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
+Link: https://lore.kernel.org/linux-mtd/20230328155819.225521-2-christophe.kerello@foss.st.com
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+Signed-off-by: Jiri Slaby <jslaby@suse.cz>
+---
+ drivers/mtd/nand/raw/stm32_fmc2_nand.c | 3 +++
+ 1 file changed, 3 insertions(+)
+
+diff --git a/drivers/mtd/nand/raw/stm32_fmc2_nand.c b/drivers/mtd/nand/raw/stm32_fmc2_nand.c
+index 5d627048..3abb63d0 100644
+--- a/drivers/mtd/nand/raw/stm32_fmc2_nand.c
++++ b/drivers/mtd/nand/raw/stm32_fmc2_nand.c
+@@ -1531,6 +1531,9 @@ static int stm32_fmc2_nfc_setup_interface(struct nand_chip *chip, int chipnr,
+ 	if (IS_ERR(sdrt))
+ 		return PTR_ERR(sdrt);
+ 
++	if (sdrt->tRC_min < 30000)
++		return -EOPNOTSUPP;
++
+ 	if (chipnr == NAND_DATA_IFACE_CHECK_ONLY)
+ 		return 0;
+ 
+-- 
+2.35.3
+
diff --git a/series.conf b/series.conf
index 9981b44..2e50c81 100644
--- a/series.conf
+++ b/series.conf
@@ -2250,6 +2250,7 @@
 	patches.kernel.org/6.2.12-020-fbmem-Reject-FB_ACTIVATE_KD_TEXT-from-userspac.patch
 	patches.kernel.org/6.2.12-021-mtdblock-tolerate-corrected-bit-flips.patch
 	patches.kernel.org/6.2.12-022-mtd-rawnand-meson-fix-bitmask-for-length-in-co.patch
+	patches.kernel.org/6.2.12-023-mtd-rawnand-stm32_fmc2-remove-unsupported-EDO-.patch
 
 	########################################################
 	# Build fixes that apply to the vanilla kernel too.