mtd: nand: s3c2410: switch to mtd_ooblayout_ops

Linux-MTD Mailing List linux-mtd at lists.infradead.org
Mon May 23 21:59:18 PDT 2016


Gitweb:     http://git.infradead.org/?p=mtd-2.6.git;a=commit;h=bf01e06b32c6cb4b1a08d03434b4559974656669
Commit:     bf01e06b32c6cb4b1a08d03434b4559974656669
Parent:     39980c5616d6a4723143e258550f2844e0138d36
Author:     Boris Brezillon <boris.brezillon at free-electrons.com>
AuthorDate: Wed Feb 3 20:03:30 2016 +0100
Committer:  Boris Brezillon <boris.brezillon at free-electrons.com>
CommitDate: Thu May 5 23:51:47 2016 +0200

    mtd: nand: s3c2410: 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 at free-electrons.com>
---
 drivers/mtd/nand/s3c2410.c | 32 +++++++++++++++++++++++++++-----
 1 file changed, 27 insertions(+), 5 deletions(-)

diff --git a/drivers/mtd/nand/s3c2410.c b/drivers/mtd/nand/s3c2410.c
index 86ffb73..4c043db 100644
--- a/drivers/mtd/nand/s3c2410.c
+++ b/drivers/mtd/nand/s3c2410.c
@@ -84,11 +84,33 @@
 
 /* new oob placement block for use with hardware ecc generation
  */
+static int s3c2410_ooblayout_ecc(struct mtd_info *mtd, int section,
+				 struct mtd_oob_region *oobregion)
+{
+	if (section)
+		return -ERANGE;
+
+	oobregion->offset = 0;
+	oobregion->length = 3;
+
+	return 0;
+}
+
+static int s3c2410_ooblayout_free(struct mtd_info *mtd, int section,
+				  struct mtd_oob_region *oobregion)
+{
+	if (section)
+		return -ERANGE;
+
+	oobregion->offset = 8;
+	oobregion->length = 8;
+
+	return 0;
+}
 
-static struct nand_ecclayout nand_hw_eccoob = {
-	.eccbytes = 3,
-	.eccpos = {0, 1, 2},
-	.oobfree = {{8, 8}}
+static const struct mtd_ooblayout_ops s3c2410_ooblayout_ops = {
+	.ecc = s3c2410_ooblayout_ecc,
+	.free = s3c2410_ooblayout_free,
 };
 
 /* controller and mtd information */
@@ -920,7 +942,7 @@ static void s3c2410_nand_update_chip(struct s3c2410_nand_info *info,
 	} else {
 		chip->ecc.size	    = 512;
 		chip->ecc.bytes	    = 3;
-		chip->ecc.layout    = &nand_hw_eccoob;
+		mtd_set_ooblayout(nand_to_mtd(chip), &s3c2410_ooblayout_ops);
 	}
 }
 



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