mtd: rawnand: diskonchip: Set the NAND_NO_BBM_QUIRK flag

We have a dummy block_bad() implementation returning 0. Let's set the
NAND_NO_BBM_QUIRK flag and let the core take care of that.
Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Reviewed-by: Miquel Raynal <miquel.raynal@bootlin.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20200511064917.6255-3-boris.brezillon@collabora.com

drivers/mtd/nand/raw/diskonchip.c

@@ -776,13 +776,6 @@ static int doc200x_dev_ready(struct nand_chip *this)
 	}
 }
 
-static int doc200x_block_bad(struct nand_chip *this, loff_t ofs)
-{
-	/* This is our last resort if we couldn't find or create a BBT.  Just
-	   pretend all blocks are good. */
-	return 0;
-}
-
 static void doc200x_enable_hwecc(struct nand_chip *this, int mode)
 {
 	struct doc_priv *doc = nand_get_controller_data(this);
@@ -1578,7 +1571,6 @@ static int __init doc_probe(unsigned long physadr)
 	nand->legacy.cmd_ctrl		= doc200x_hwcontrol;
 	nand->legacy.dev_ready	= doc200x_dev_ready;
 	nand->legacy.waitfunc	= doc200x_wait;
-	nand->legacy.block_bad	= doc200x_block_bad;
 	nand->ecc.hwctl		= doc200x_enable_hwecc;
 	nand->ecc.calculate	= doc200x_calculate_ecc;
 	nand->ecc.correct	= doc200x_correct_data;
@@ -1590,7 +1582,7 @@ static int __init doc_probe(unsigned long physadr)
 	nand->ecc.options	= NAND_ECC_GENERIC_ERASED_CHECK;
 	nand->bbt_options	= NAND_BBT_USE_FLASH;
 	/* Skip the automatic BBT scan so we can run it manually */
-	nand->options		|= NAND_SKIP_BBTSCAN;
+	nand->options		|= NAND_SKIP_BBTSCAN | NAND_NO_BBM_QUIRK;
 
 	doc->physadr		= physadr;
 	doc->virtadr		= virtadr;