mtd: rawnand: add a way to pass an ID table with nand_scan()

As part of the work of migrating all the drivers to nand_scan(), and
because nand_scan() does not provide a way to pass an ID table, rename
the function nand_scan_with_ids() and add a third parameter to give a
flash ID table (like what was done with nand_scan_ident()).

Create a nand_scan() helper that is just a wrapper of
nand_scan_with_ids(), passing NULL as the ID table. This way a
controller drivers can continue using nand_scan() transparently.
Signed-off-by: NMiquel Raynal <miquel.raynal@bootlin.com>
Signed-off-by: NBoris Brezillon <boris.brezillon@bootlin.com>

drivers/mtd/nand/raw/nand_base.c

@@ -6630,24 +6630,26 @@ EXPORT_SYMBOL(nand_scan_tail);
 #endif
 
 /**
- * nand_scan - [NAND Interface] Scan for the NAND device
+ * nand_scan_with_ids - [NAND Interface] Scan for the NAND device
  * @mtd: MTD device structure
  * @maxchips: number of chips to scan for
+ * @ids: optional flash IDs table
  *
  * This fills out all the uninitialized function pointers with the defaults.
  * The flash ID is read and the mtd/chip structures are filled with the
  * appropriate values.
  */
-int nand_scan(struct mtd_info *mtd, int maxchips)
+int nand_scan_with_ids(struct mtd_info *mtd, int maxchips,
+		       struct nand_flash_dev *ids)
 {
 	int ret;
 
-	ret = nand_scan_ident(mtd, maxchips, NULL);
+	ret = nand_scan_ident(mtd, maxchips, ids);
 	if (!ret)
 		ret = nand_scan_tail(mtd);
 	return ret;
 }
-EXPORT_SYMBOL(nand_scan);
+EXPORT_SYMBOL(nand_scan_with_ids);
 
 /**
  * nand_cleanup - [NAND Interface] Free resources held by the NAND device

include/linux/mtd/rawnand.h

@@ -28,7 +28,14 @@ struct nand_flash_dev;
 struct device_node;
 
 /* Scan and identify a NAND device */
-int nand_scan(struct mtd_info *mtd, int max_chips);
+int nand_scan_with_ids(struct mtd_info *mtd, int max_chips,
+		       struct nand_flash_dev *ids);
+
+static inline int nand_scan(struct mtd_info *mtd, int max_chips)
+{
+	return nand_scan_with_ids(mtd, max_chips, NULL);
+}
+
 /*
  * Separate phases of nand_scan(), allowing board driver to intervene
  * and override command or ECC setup according to flash type.