mtd: rawnand: sm_common: convert driver to nand_scan_with_ids()

Two helpers have been added to the core to do all kind of controller
side configuration/initialization between the detection phase and the
final NAND scan. Implement these hooks so that we can convert the driver
to just use nand_scan_with_ids() (alternative to nand_scan() for passing
a flash IDs table) instead of the nand_scan_ident() + nand_scan_tail()
pair.

Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Reviewed-by: Boris Brezillon <boris.brezillon@bootlin.com>

drivers/mtd/nand/raw/sm_common.c

@@ -160,19 +160,9 @@ static struct nand_flash_dev nand_xd_flash_ids[] = {
  {NULL}
 };
 
-int sm_register_device(struct mtd_info *mtd, int smartmedia)
+static int sm_attach_chip(struct nand_chip *chip)
 {
- struct nand_chip *chip = mtd_to_nand(mtd);
- int ret;
-
- chip->options |= NAND_SKIP_BBTSCAN;
-
- /* Scan for card properties */
- ret = nand_scan_ident(mtd, 1, smartmedia ?
- nand_smartmedia_flash_ids : nand_xd_flash_ids);
-
- if (ret)
- return ret;
+ struct mtd_info *mtd = nand_to_mtd(chip);
 
  /* Bad block marker position */
  chip->badblockpos = 0x05;
@@ -187,8 +177,25 @@ int sm_register_device(struct mtd_info *mtd, int smartmedia)
  else
  return -ENODEV;
 
- ret = nand_scan_tail(mtd);
+ return 0;
+}
+
+static const struct nand_controller_ops sm_controller_ops = {
+ .attach_chip = sm_attach_chip,
+};
 
+int sm_register_device(struct mtd_info *mtd, int smartmedia)
+{
+ struct nand_chip *chip = mtd_to_nand(mtd);
+ struct nand_flash_dev *flash_ids;
+ int ret;
+
+ chip->options |= NAND_SKIP_BBTSCAN;
+
+ /* Scan for card properties */
+ chip->dummy_controller.ops = &sm_controller_ops;
+ flash_ids = smartmedia ? nand_smartmedia_flash_ids : nand_xd_flash_ids;
+ ret = nand_scan_with_ids(mtd, 1, flash_ids);
  if (ret)
  return ret;