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authorBoris Brezillon <bbrezillon@kernel.org>2018-10-25 16:21:08 +0300
committerMiquel Raynal <miquel.raynal@bootlin.com>2019-04-08 11:21:11 +0300
commit3020e30af6f81beedfeb4cf4eecc693bba55a6c2 (patch)
tree99bb8c2b82ec7e76554c31c9707866a00497ca2b /include/linux/mtd
parent080d66e94d69a5b1d197ac411db6c27700868af8 (diff)
downloadlinux-3020e30af6f81beedfeb4cf4eecc693bba55a6c2.tar.xz
mtd: rawnand: Prepare things to reuse the generic NAND layer
The generic NAND layer provides abstraction of NAND devices no matter the bus that is used to communicate with the chip. Basing the raw NAND core on this generic layer should avoid duplication of common operations, like iterating over all pages/blocks for MTD IO/erase operations. In order to re-use this layer, we must first inherit from nand_device and then initialize the nand_device struct appropriately. This patch is taking care of the former. Signed-off-by: Boris Brezillon <bbrezillon@kernel.org> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> Reviewed-by: Frieder Schrempf <frieder.schrempf@kontron.de>
Diffstat (limited to 'include/linux/mtd')
-rw-r--r--include/linux/mtd/rawnand.h10
1 files changed, 6 insertions, 4 deletions
diff --git a/include/linux/mtd/rawnand.h b/include/linux/mtd/rawnand.h
index d5c7741c0901..58887cb2c7ea 100644
--- a/include/linux/mtd/rawnand.h
+++ b/include/linux/mtd/rawnand.h
@@ -20,6 +20,7 @@
#include <linux/mtd/flashchip.h>
#include <linux/mtd/bbm.h>
#include <linux/mtd/jedec.h>
+#include <linux/mtd/nand.h>
#include <linux/mtd/onfi.h>
#include <linux/mutex.h>
#include <linux/of.h>
@@ -860,6 +861,7 @@ struct nand_operation {
int nand_op_parser_exec_op(struct nand_chip *chip,
const struct nand_op_parser *parser,
const struct nand_operation *op, bool check_only);
+
/**
* struct nand_controller_ops - Controller operations
*
@@ -962,7 +964,7 @@ struct nand_legacy {
/**
* struct nand_chip - NAND Private Flash Chip Data
- * @mtd: MTD device registered to the MTD framework
+ * @base: Inherit from the generic NAND device
* @legacy: All legacy fields/hooks. If you develop a new driver,
* don't even try to use any of these fields/hooks, and if
* you're modifying an existing driver that is using those
@@ -1041,7 +1043,7 @@ struct nand_legacy {
*/
struct nand_chip {
- struct mtd_info mtd;
+ struct nand_device base;
struct nand_legacy legacy;
@@ -1107,12 +1109,12 @@ extern const struct mtd_ooblayout_ops nand_ooblayout_lp_ops;
static inline struct nand_chip *mtd_to_nand(struct mtd_info *mtd)
{
- return container_of(mtd, struct nand_chip, mtd);
+ return container_of(mtd, struct nand_chip, base.mtd);
}
static inline struct mtd_info *nand_to_mtd(struct nand_chip *chip)
{
- return &chip->mtd;
+ return &chip->base.mtd;
}
static inline void *nand_get_controller_data(struct nand_chip *chip)