mtd: nand: jz4780: switch to mtd_ooblayout_ops

Implementing the mtd_ooblayout_ops interface is the new way of exposing
ECC/OOB layout to MTD users.

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Tested-by: Harvey Hunt <harvey.hunt@imgtec.com>

diff --git a/drivers/mtd/nand/jz4780_nand.c b/drivers/mtd/nand/jz4780_nand.c
index 23a1999ae8394d608ad027e0a57c17d593b8b2c0..10f249ac148c9b467aa36c43d490c3dc018cc19d 100644 (file)
--- a/drivers/mtd/nand/jz4780_nand.c
+++ b/drivers/mtd/nand/jz4780_nand.c
@@ -55,8 +55,6 @@ struct jz4780_nand_chip {
        struct nand_chip chip;
        struct list_head chip_list;
 
-       struct nand_ecclayout ecclayout;
-
        struct gpio_desc *busy_gpio;
        struct gpio_desc *wp_gpio;
        unsigned int reading: 1;
@@ -164,8 +162,7 @@ static int jz4780_nand_init_ecc(struct jz4780_nand_chip *nand, struct device *de
        struct nand_chip *chip = &nand->chip;
        struct mtd_info *mtd = nand_to_mtd(chip);
        struct jz4780_nand_controller *nfc = to_jz4780_nand_controller(chip->controller);
-       struct nand_ecclayout *layout = &nand->ecclayout;
-       u32 start, i;
+       int eccbytes;
 
        chip->ecc.bytes = fls((1 + 8) * chip->ecc.size) *
                                (chip->ecc.strength / 8);
@@ -200,23 +197,17 @@ static int jz4780_nand_init_ecc(struct jz4780_nand_chip *nand, struct device *de
                return 0;
 
        /* Generate ECC layout. ECC codes are right aligned in the OOB area. */
-       layout->eccbytes = mtd->writesize / chip->ecc.size * chip->ecc.bytes;
+       eccbytes = mtd->writesize / chip->ecc.size * chip->ecc.bytes;
 
-       if (layout->eccbytes > mtd->oobsize - 2) {
+       if (eccbytes > mtd->oobsize - 2) {
                dev_err(dev,
                        "invalid ECC config: required %d ECC bytes, but only %d are available",
-                       layout->eccbytes, mtd->oobsize - 2);
+                       eccbytes, mtd->oobsize - 2);
                return -EINVAL;
        }
 
-       start = mtd->oobsize - layout->eccbytes;
-       for (i = 0; i < layout->eccbytes; i++)
-               layout->eccpos[i] = start + i;
-
-       layout->oobfree[0].offset = 2;
-       layout->oobfree[0].length = mtd->oobsize - layout->eccbytes - 2;
+       mtd->ooblayout = &nand_ooblayout_lp_ops;
 
-       chip->ecc.layout = layout;
        return 0;
 }