[PATCH v2 37/51] mtd: nand: hisi504: switch to mtd_ooblayout_ops

Boris Brezillon
2016-02-04T10:08:13Z

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>
---
drivers/mtd/nand/hisi504_nand.c | 27 ++++++++++++++++++++++++---
1 file changed, 24 insertions(+), 3 deletions(-)

diff --git a/drivers/mtd/nand/hisi504_nand.c b/drivers/mtd/nand/hisi504_nand.c
index 96502b6..a2a8eb0 100644
--- a/drivers/mtd/nand/hisi504_nand.c
+++ b/drivers/mtd/nand/hisi504_nand.c
@@ -631,8 +631,29 @@ static void hisi_nfc_host_init(struct hinfc_host *host)
hinfc_write(host, HINFC504_INTEN_DMA, HINFC504_INTEN);
}

-static struct nand_ecclayout nand_ecc_2K_16bits = {
- .oobfree = { {2, 6} },
+static int hisi_ooblayout_ecc(struct mtd_info *mtd, int section,
+ struct mtd_oob_region *oobregion)
+{
+ /* FIXME: add real eccpos definition. */
+ return -ENOTSUPP;
+}
+
+static int hisi_ooblayout_free(struct mtd_info *mtd, int section,
+ struct mtd_oob_region *oobregion)
+{
+ /* FIXME: add full oobfree definition. */
+ if (section)
+ return -ERANGE;
+
+ oobregion->offset = 2;
+ oobregion->length = 6;
+
+ return 0;
+}
+
+static const struct mtd_ooblayout_ops hisi_ooblayout_ops = {
+ .ecc = hisi_ooblayout_ecc,
+ .free = hisi_ooblayout_free,
};

static int hisi_nfc_ecc_probe(struct hinfc_host *host)
@@ -668,7 +689,7 @@ static int hisi_nfc_ecc_probe(struct hinfc_host *host)
case 16:
ecc_bits = 6;
if (mtd->writesize == 2048)
- chip->ecc.layout = &nand_ecc_2K_16bits;
+ mtd_set_ooblayout(mtd, &hisi_ooblayout_ops);

/* TODO: add more page size support */
break;
--
2.1.4