mtd: nand: add more comment for MTD_NANDFLASH/MTD_MLCNANDFLASH

In current code, the MTD_NANDFLASH is used to represent both the SLC and
MLC. It is confusing to us.

By adding an explicit comment about these two macros, this patch makes it
clear that:
	MTD_NANDFLASH    : stands for SLC NAND,
	MTD_MLCNANDFLASH : stands for MLC NAND (including TLC).

Signed-off-by: Huang Shijie <b32955@freescale.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>

diff --git a/include/uapi/mtd/mtd-abi.h b/include/uapi/mtd/mtd-abi.h
index 36eace03b2ac79229984b09254db9aed3e3b8d5f..e89b096856f8e91020aa869fbfc86668433d8ea0 100644 (file)
--- a/include/uapi/mtd/mtd-abi.h
+++ b/include/uapi/mtd/mtd-abi.h
@@ -94,10 +94,10 @@ struct mtd_write_req {
 #define MTD_RAM                        1
 #define MTD_ROM                        2
 #define MTD_NORFLASH           3
-#define MTD_NANDFLASH          4
+#define MTD_NANDFLASH          4       /* SLC NAND */
 #define MTD_DATAFLASH          6
 #define MTD_UBIVOLUME          7
-#define MTD_MLCNANDFLASH       8
+#define MTD_MLCNANDFLASH       8       /* MLC NAND (including TLC) */
 
 #define MTD_WRITEABLE          0x400   /* Device is writeable */
 #define MTD_BIT_WRITEABLE      0x800   /* Single bits can be flipped */