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Subject[PATCH v2 02/17] include:mtd:add multi-plane program in mtd_info
Date
From: Bean Huo <beanhuo@micron.com>

This patch file is to add support for multi-plane page program hook in mtd_info,
callback this in one new inline function mtd_write_dual_plane_oob.

Signed-off-by: BeanHuo <beanhuo@micron.com>
---
include/linux/mtd/mtd.h | 19 +++++++++++++++++++
1 file changed, 19 insertions(+)

diff --git a/include/linux/mtd/mtd.h b/include/linux/mtd/mtd.h
index f17fa75..cfcb3a68 100644
--- a/include/linux/mtd/mtd.h
+++ b/include/linux/mtd/mtd.h
@@ -204,6 +204,9 @@ struct mtd_info {
struct mtd_oob_ops *ops);
int (*_write_oob) (struct mtd_info *mtd, loff_t to,
struct mtd_oob_ops *ops);
+ int (*_dual_plane_write_oob) (struct mtd_info *mtd, loff_t to_plane0,
+ struct mtd_oob_ops *ops_plane0, loff_t to_plane1,
+ struct mtd_oob_ops *ops_plane1);
int (*_get_fact_prot_info) (struct mtd_info *mtd, size_t len,
size_t *retlen, struct otp_info *buf);
int (*_read_fact_prot_reg) (struct mtd_info *mtd, loff_t from,
@@ -280,6 +283,22 @@ static inline int mtd_write_oob(struct mtd_info *mtd, loff_t to,
return mtd->_write_oob(mtd, to, ops);
}

+static inline int mtd_write_dual_plane_oob(struct mtd_info *mtd,
+ loff_t to_plane0, struct mtd_oob_ops *ops0, loff_t to_plane1,
+ struct mtd_oob_ops *ops1)
+{
+ ops0->retlen = ops0->oobretlen = 0;
+ ops1->retlen = ops1->oobretlen = 0;
+
+ if (!mtd->_dual_plane_write_oob)
+ return -EOPNOTSUPP;
+ if (!(mtd->flags & MTD_WRITEABLE))
+ return -EROFS;
+
+ return mtd->_dual_plane_write_oob(mtd, to_plane0, ops0,
+ to_plane1, ops1);
+}
+
int mtd_get_fact_prot_info(struct mtd_info *mtd, size_t len, size_t *retlen,
struct otp_info *buf);
int mtd_read_fact_prot_reg(struct mtd_info *mtd, loff_t from, size_t len,
--
1.9.1
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