Since commit d7157ff49a5b ("mtd: rawnand: Use the ECC framework user
input parsing bits"), ECC are broken in FMC2 driver in case of
nand-ecc-step-size and nand-ecc-strength are not set in the device tree.
The default user configuration set in FMC2 driver is lost when
rawnand_dt_init function is called. To avoid to lose the default user
configuration, it is needed to move it in the new user_conf structure.

Signed-off-by: Christophe Kerello <[email protected]>
Fixes: d7157ff49a5b ("mtd: rawnand: Use the ECC framework user input parsing 
bits")
---
 drivers/mtd/nand/raw/stm32_fmc2_nand.c | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/drivers/mtd/nand/raw/stm32_fmc2_nand.c 
b/drivers/mtd/nand/raw/stm32_fmc2_nand.c
index b31a581..dc86ac9 100644
--- a/drivers/mtd/nand/raw/stm32_fmc2_nand.c
+++ b/drivers/mtd/nand/raw/stm32_fmc2_nand.c
@@ -1846,6 +1846,7 @@ static int stm32_fmc2_nfc_probe(struct platform_device 
*pdev)
        struct resource *res;
        struct mtd_info *mtd;
        struct nand_chip *chip;
+       struct nand_device *nanddev;
        struct resource cres;
        int chip_cs, mem_region, ret, irq;
        int start_region = 0;
@@ -1952,10 +1953,11 @@ static int stm32_fmc2_nfc_probe(struct platform_device 
*pdev)
        chip->options |= NAND_BUSWIDTH_AUTO | NAND_NO_SUBPAGE_WRITE |
                         NAND_USES_DMA;
 
-       /* Default ECC settings */
+       /* Default ECC user settings */
        chip->ecc.engine_type = NAND_ECC_ENGINE_TYPE_ON_HOST;
-       chip->ecc.size = FMC2_ECC_STEP_SIZE;
-       chip->ecc.strength = FMC2_ECC_BCH8;
+       nanddev = mtd_to_nanddev(mtd);
+       nanddev->ecc.user_conf.step_size = FMC2_ECC_STEP_SIZE;
+       nanddev->ecc.user_conf.strength = FMC2_ECC_BCH8;
 
        /* Scan to find existence of the device */
        ret = nand_scan(chip, nand->ncs);
-- 
1.9.1

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