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authorHuang Shijie <b32955@freescale.com>2013-09-25 14:58:17 +0800
committerBrian Norris <computersforpeace@gmail.com>2013-10-27 16:27:06 -0700
commit818b97392932ac4cecc36ab839957258367004a9 (patch)
tree9d3d864da226e7068ece1b88ccf8b51b9fb25e4d
parentfda5b0e24dca3d52671e5a6543a285d4e86c55e1 (diff)
mtd: nand: add a helper to detect the nand type
This helper detects that whether the mtd's type is nand type. Now, it's clear that the MTD_NANDFLASH stands for SLC nand only. So use the mtd_type_is_nand() to replace the old check method to do the nand type (include the SLC and MLC) check. Signed-off-by: Huang Shijie <b32955@freescale.com> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
-rw-r--r--drivers/mtd/inftlcore.c2
-rw-r--r--drivers/mtd/nftlcore.c2
-rw-r--r--drivers/mtd/ssfdc.c2
-rw-r--r--drivers/mtd/tests/nandbiterrs.c2
-rw-r--r--drivers/mtd/tests/oobtest.c2
-rw-r--r--drivers/mtd/tests/pagetest.c2
-rw-r--r--drivers/mtd/tests/subpagetest.c2
-rw-r--r--include/linux/mtd/mtd.h5
8 files changed, 12 insertions, 7 deletions
diff --git a/drivers/mtd/inftlcore.c b/drivers/mtd/inftlcore.c
index 3af351484098..b66b541877f0 100644
--- a/drivers/mtd/inftlcore.c
+++ b/drivers/mtd/inftlcore.c
@@ -50,7 +50,7 @@ static void inftl_add_mtd(struct mtd_blktrans_ops *tr, struct mtd_info *mtd)
struct INFTLrecord *inftl;
unsigned long temp;
- if (mtd->type != MTD_NANDFLASH || mtd->size > UINT_MAX)
+ if (!mtd_type_is_nand(mtd) || mtd->size > UINT_MAX)
return;
/* OK, this is moderately ugly. But probably safe. Alternatives? */
if (memcmp(mtd->name, "DiskOnChip", 10))
diff --git a/drivers/mtd/nftlcore.c b/drivers/mtd/nftlcore.c
index c5f4ebf4b384..46f27de018c3 100644
--- a/drivers/mtd/nftlcore.c
+++ b/drivers/mtd/nftlcore.c
@@ -50,7 +50,7 @@ static void nftl_add_mtd(struct mtd_blktrans_ops *tr, struct mtd_info *mtd)
struct NFTLrecord *nftl;
unsigned long temp;
- if (mtd->type != MTD_NANDFLASH || mtd->size > UINT_MAX)
+ if (!mtd_type_is_nand(mtd) || mtd->size > UINT_MAX)
return;
/* OK, this is moderately ugly. But probably safe. Alternatives? */
if (memcmp(mtd->name, "DiskOnChip", 10))
diff --git a/drivers/mtd/ssfdc.c b/drivers/mtd/ssfdc.c
index ab2a52a039c3..daf82ba7aba0 100644
--- a/drivers/mtd/ssfdc.c
+++ b/drivers/mtd/ssfdc.c
@@ -290,7 +290,7 @@ static void ssfdcr_add_mtd(struct mtd_blktrans_ops *tr, struct mtd_info *mtd)
int cis_sector;
/* Check for small page NAND flash */
- if (mtd->type != MTD_NANDFLASH || mtd->oobsize != OOB_SIZE ||
+ if (!mtd_type_is_nand(mtd) || mtd->oobsize != OOB_SIZE ||
mtd->size > UINT_MAX)
return;
diff --git a/drivers/mtd/tests/nandbiterrs.c b/drivers/mtd/tests/nandbiterrs.c
index 3cd3aabbe1cd..6f976159611f 100644
--- a/drivers/mtd/tests/nandbiterrs.c
+++ b/drivers/mtd/tests/nandbiterrs.c
@@ -349,7 +349,7 @@ static int __init mtd_nandbiterrs_init(void)
goto exit_mtddev;
}
- if (mtd->type != MTD_NANDFLASH) {
+ if (!mtd_type_is_nand(mtd)) {
pr_info("this test requires NAND flash\n");
err = -ENODEV;
goto exit_nand;
diff --git a/drivers/mtd/tests/oobtest.c b/drivers/mtd/tests/oobtest.c
index ff35c465bfee..2e9e2d11f204 100644
--- a/drivers/mtd/tests/oobtest.c
+++ b/drivers/mtd/tests/oobtest.c
@@ -289,7 +289,7 @@ static int __init mtd_oobtest_init(void)
return err;
}
- if (mtd->type != MTD_NANDFLASH) {
+ if (!mtd_type_is_nand(mtd)) {
pr_info("this test requires NAND flash\n");
goto out;
}
diff --git a/drivers/mtd/tests/pagetest.c b/drivers/mtd/tests/pagetest.c
index 44b96e999ad4..ed2d3f656fd2 100644
--- a/drivers/mtd/tests/pagetest.c
+++ b/drivers/mtd/tests/pagetest.c
@@ -353,7 +353,7 @@ static int __init mtd_pagetest_init(void)
return err;
}
- if (mtd->type != MTD_NANDFLASH) {
+ if (!mtd_type_is_nand(mtd)) {
pr_info("this test requires NAND flash\n");
goto out;
}
diff --git a/drivers/mtd/tests/subpagetest.c b/drivers/mtd/tests/subpagetest.c
index e2c0adf24cfc..a876371ad410 100644
--- a/drivers/mtd/tests/subpagetest.c
+++ b/drivers/mtd/tests/subpagetest.c
@@ -299,7 +299,7 @@ static int __init mtd_subpagetest_init(void)
return err;
}
- if (mtd->type != MTD_NANDFLASH) {
+ if (!mtd_type_is_nand(mtd)) {
pr_info("this test requires NAND flash\n");
goto out;
}
diff --git a/include/linux/mtd/mtd.h b/include/linux/mtd/mtd.h
index f9bfe526d310..88409b813418 100644
--- a/include/linux/mtd/mtd.h
+++ b/include/linux/mtd/mtd.h
@@ -354,6 +354,11 @@ static inline int mtd_has_oob(const struct mtd_info *mtd)
return mtd->_read_oob && mtd->_write_oob;
}
+static inline int mtd_type_is_nand(const struct mtd_info *mtd)
+{
+ return mtd->type == MTD_NANDFLASH || mtd->type == MTD_MLCNANDFLASH;
+}
+
static inline int mtd_can_have_bb(const struct mtd_info *mtd)
{
return !!mtd->_block_isbad;