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Commit 28b8b26b authored Oct 30, 2015 by Brian Norris

mtd: add get/set of_node/flash_node helpers



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>

parent bf9c37cb

include/linux/mtd/mtd.h

+11 −0

Original line number	Diff line number	Diff line
		@@ -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);

include/linux/mtd/nand.h

+11 −0

Original line number	Diff line number	Diff line
		@@ -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
		*/

include/linux/mtd/spi-nor.h

+11 −0

Original line number	Diff line number	Diff line
		@@ -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