target/linux/mediatek/patches-4.4/0056-mtd-add-get-set-of_node-flash_node-helpers.patch

   1 From 3ed29e95facfd50427721f8e9093dc36c2304e42 Mon Sep 17 00:00:00 2001
   2 From: John Crispin <blogic@openwrt.org>
   3 Date: Tue, 22 Mar 2016 03:52:07 +0100
   4 Subject: [PATCH 56/81] mtd: add get/set of_node/flash_node helpers
   5
   6 We are going to begin using the mtd->dev.of_node field for MTD device
   7 nodes, so let's add helpers for it. Also, we'll be making some
   8 conversions on spi_nor (and nand_chip eventually) too, so get that ready
   9 with their own helpers.
  10
  11 Signed-off-by: Brian Norris <computersforpeace@gmail.com>
  12 Reviewed-by: Boris Brezillon <boris.brezillon@free-electrons.com>
  13 ---
  14  include/linux/mtd/mtd.h     |   11 +++++++++++
  15  include/linux/mtd/nand.h    |   11 +++++++++++
  16  include/linux/mtd/spi-nor.h |   11 +++++++++++
  17  3 files changed, 33 insertions(+)
  18
  19 --- a/include/linux/mtd/mtd.h
  20 +++ b/include/linux/mtd/mtd.h
  21 @@ -258,6 +258,17 @@ struct mtd_info {
  22         int usecount;
  23  };
  24
  25 +static inline void mtd_set_of_node(struct mtd_info *mtd,
  26 +                                  struct device_node *np)
  27 +{
  28 +       mtd->dev.of_node = np;
  29 +}
  30 +
  31 +static inline struct device_node *mtd_get_of_node(struct mtd_info *mtd)
  32 +{
  33 +       return mtd->dev.of_node;
  34 +}
  35 +
  36  int mtd_erase(struct mtd_info *mtd, struct erase_info *instr);
  37  int mtd_point(struct mtd_info *mtd, loff_t from, size_t len, size_t *retlen,
  38               void **virt, resource_size_t *phys);
  39 --- a/include/linux/mtd/nand.h
  40 +++ b/include/linux/mtd/nand.h
  41 @@ -741,6 +741,17 @@ static inline void nand_set_controller_d
  42         chip->priv = priv;
  43  }
  44
  45 +static inline void nand_set_flash_node(struct nand_chip *chip,
  46 +                                      struct device_node *np)
  47 +{
  48 +       chip->flash_node = np;
  49 +}
  50 +
  51 +static inline struct device_node *nand_get_flash_node(struct nand_chip *chip)
  52 +{
  53 +       return chip->flash_node;
  54 +}
  55 +
  56  /*
  57   * NAND Flash Manufacturer ID Codes
  58   */
  59 --- a/include/linux/mtd/spi-nor.h
  60 +++ b/include/linux/mtd/spi-nor.h
  61 @@ -184,6 +184,17 @@ struct spi_nor {
  62         void *priv;
  63  };
  64
  65 +static inline void spi_nor_set_flash_node(struct spi_nor *nor,
  66 +                                         struct device_node *np)
  67 +{
  68 +       nor->flash_node = np;
  69 +}
  70 +
  71 +static inline struct device_node *spi_nor_get_flash_node(struct spi_nor *nor)
  72 +{
  73 +       return nor->flash_node;
  74 +}
  75 +
  76  /**
  77   * spi_nor_scan() - scan the SPI NOR
  78   * @nor:       the spi_nor structure