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>

diff --git a/include/linux/mtd/mtd.h b/include/linux/mtd/mtd.h
index f17fa75..cc84923 100644 (file)
--- a/include/linux/mtd/mtd.h
+++ b/include/linux/mtd/mtd.h
@@ -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);

diff --git a/include/linux/mtd/nand.h b/include/linux/mtd/nand.h
index 5a9d1d4..4f7c9b9 100644 (file)
--- a/include/linux/mtd/nand.h
+++ b/include/linux/mtd/nand.h
@@ -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
  */

diff --git a/include/linux/mtd/spi-nor.h b/include/linux/mtd/spi-nor.h
index c8723b6..6d991df 100644 (file)
--- a/include/linux/mtd/spi-nor.h
+++ b/include/linux/mtd/spi-nor.h
@@ -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