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mtd: add get/set of_node/flash_node helpers

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We are going to begin using the mtd->dev.of_node field for MTD device
nodes, so let's add helpers for it. Also, we'll be making some
conversions on spi_nor (and nand_chip eventually) too, so get that ready
with their own helpers.

Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Reviewed-by: Boris Brezillon <boris.brezillon@free-electrons.com>
This commit is contained in:
Brian Norris 2015-10-30 20:33:20 -07:00
parent bf9c37cb62
commit 28b8b26b30
3 changed files with 33 additions and 0 deletions
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11
include/linux/mtd/mtd.h
View file

@ -254,6 +254,17 @@ struct mtd_info {
int usecount;
};
static inline void mtd_set_of_node(struct mtd_info *mtd,
struct device_node *np)
{
mtd->dev.of_node = np;
}
static inline struct device_node *mtd_get_of_node(struct mtd_info *mtd)
{
return mtd->dev.of_node;
}
int mtd_erase(struct mtd_info *mtd, struct erase_info *instr);
int mtd_point(struct mtd_info *mtd, loff_t from, size_t len, size_t *retlen,
void **virt, resource_size_t *phys);

11
include/linux/mtd/nand.h
View file

@ -719,6 +719,17 @@ struct nand_chip {
void *priv;
};
static inline void nand_set_flash_node(struct nand_chip *chip,
struct device_node *np)
{
chip->flash_node = np;
}
static inline struct device_node *nand_get_flash_node(struct nand_chip *chip)
{
return chip->flash_node;
}
/*
* NAND Flash Manufacturer ID Codes
*/

11
include/linux/mtd/spi-nor.h
View file

@ -185,6 +185,17 @@ struct spi_nor {
void *priv;
};
static inline void spi_nor_set_flash_node(struct spi_nor *nor,
struct device_node *np)
{
nor->flash_node = np;
}
static inline struct device_node *spi_nor_get_flash_node(struct spi_nor *nor)
{
return nor->flash_node;
}
/**
* spi_nor_scan() - scan the SPI NOR
* @nor: the spi_nor structure