target/linux/layerscape/patches-4.4/1077-mtd-add-get-set-of_node-flash_node-helpers.patch

   1 From a2f87e7df641b482e217f5b0efbaf41f6b8a0cf6 Mon Sep 17 00:00:00 2001
   2 From: Brian Norris <computersforpeace@gmail.com>
   3 Date: Fri, 30 Oct 2015 20:33:20 -0700
   4 Subject: [PATCH 077/113] 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 commit:28b8b26b308e656edfa9467867d5f79212da2ec3
  12 delete the include/linux/mtd/nand.h
  13 just upgrade the code about spi.
  14
  15 Signed-off-by: Brian Norris <computersforpeace@gmail.com>
  16 Reviewed-by: Boris Brezillon <boris.brezillon@free-electrons.com>
  17 Signed-off-by: Yuan Yao <yao.yuan@nxp.com>
  18 ---
  19  include/linux/mtd/mtd.h     |   11 +++++++++++
  20  include/linux/mtd/spi-nor.h |   11 +++++++++++
  21  2 files changed, 22 insertions(+)
  22
  23 --- a/include/linux/mtd/mtd.h
  24 +++ b/include/linux/mtd/mtd.h
  25 @@ -258,6 +258,17 @@ struct mtd_info {
  26         int usecount;
  27  };
  28
  29 +static inline void mtd_set_of_node(struct mtd_info *mtd,
  30 +                                  struct device_node *np)
  31 +{
  32 +       mtd->dev.of_node = np;
  33 +}
  34 +
  35 +static inline struct device_node *mtd_get_of_node(struct mtd_info *mtd)
  36 +{
  37 +       return mtd->dev.of_node;
  38 +}
  39 +
  40  int mtd_erase(struct mtd_info *mtd, struct erase_info *instr);
  41  int mtd_point(struct mtd_info *mtd, loff_t from, size_t len, size_t *retlen,
  42               void **virt, resource_size_t *phys);
  43 --- a/include/linux/mtd/spi-nor.h
  44 +++ b/include/linux/mtd/spi-nor.h
  45 @@ -184,6 +184,17 @@ struct spi_nor {
  46         void *priv;
  47  };
  48
  49 +static inline void spi_nor_set_flash_node(struct spi_nor *nor,
  50 +                                         struct device_node *np)
  51 +{
  52 +       nor->flash_node = np;
  53 +}
  54 +
  55 +static inline struct device_node *spi_nor_get_flash_node(struct spi_nor *nor)
  56 +{
  57 +       return nor->flash_node;
  58 +}
  59 +
  60  /**
  61   * spi_nor_scan() - scan the SPI NOR
  62   * @nor:       the spi_nor structure