mtd: nand: embed an mtd_info structure into nand_chip

Currently all NAND controller drivers are providing both the mtd_info and
nand_chip struct and then let the NAND subsystem to initialize a few
things before registering the mtd instance to the MTD layer.
Embed an mtd_info field into nand_chip to add some consistency to all NAND
controller drivers.
This change will also help factorizing boilerplate code copied in all NAND
drivers.

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>

diff --git a/include/linux/mtd/nand.h b/include/linux/mtd/nand.h
index fad634e..d671057 100644 (file)
--- a/include/linux/mtd/nand.h
+++ b/include/linux/mtd/nand.h
@@ -540,6 +540,7 @@ struct nand_buffers {
 
 /**
  * struct nand_chip - NAND Private Flash Chip Data
+ * @mtd:               MTD device registered to the MTD framework
  * @IO_ADDR_R:         [BOARDSPECIFIC] address to read the 8 I/O lines of the
  *                     flash device
  * @IO_ADDR_W:         [BOARDSPECIFIC] address to write the 8 I/O lines of the
@@ -640,6 +641,7 @@ struct nand_buffers {
  */
 
 struct nand_chip {
+       struct mtd_info mtd;
        void __iomem *IO_ADDR_R;
        void __iomem *IO_ADDR_W;