target/linux/generic/patches-2.6.30/080-mtd_plat_nand_chip_fixup.patch

   1 --- a/include/linux/mtd/nand.h
   2 +++ b/include/linux/mtd/nand.h
   3 @@ -574,6 +574,7 @@ struct platform_nand_chip {
   4         int                     chip_delay;
   5         unsigned int            options;
   6         const char              **part_probe_types;
   7 +       int                     (*chip_fixup)(struct mtd_info *mtd);
   8         void                    *priv;
   9  };
  10
  11 --- a/drivers/mtd/nand/plat_nand.c
  12 +++ b/drivers/mtd/nand/plat_nand.c
  13 @@ -71,7 +71,18 @@ static int __devinit plat_nand_probe(str
  14         platform_set_drvdata(pdev, data);
  15
  16         /* Scan to find existance of the device */
  17 -       if (nand_scan(&data->mtd, 1)) {
  18 +       if (nand_scan_ident(&data->mtd, 1)) {
  19 +               res = -ENXIO;
  20 +               goto out;
  21 +       }
  22 +
  23 +       if (pdata->chip.chip_fixup) {
  24 +               res = pdata->chip.chip_fixup(&data->mtd);
  25 +               if (res)
  26 +                       goto out;
  27 +       }
  28 +
  29 +       if (nand_scan_tail(&data->mtd)) {
  30                 res = -ENXIO;
  31                 goto out;
  32         }