target/linux/lantiq/patches-3.10/0012-MTD-m25p80-allow-loading-mtd-name-from-OF.patch

   1 From 65d48cd98505800c6765ff94fc007797e00d466f Mon Sep 17 00:00:00 2001
   2 From: John Crispin <blogic@openwrt.org>
   3 Date: Tue, 29 Jan 2013 21:11:55 +0100
   4 Subject: [PATCH 12/34] MTD: m25p80: allow loading mtd name from OF
   5
   6 In accordance with the physmap flash we should honour the linux,mtd-name
   7 property when deciding what name the mtd device has.
   8
   9 Signed-off-by: Thomas Langer <thomas.langer@lantiq.com>
  10 Signed-off-by: John Crispin <blogic@openwrt.org>
  11 ---
  12  drivers/mtd/devices/m25p80.c |    5 +++++
  13  1 file changed, 5 insertions(+)
  14
  15 --- a/drivers/mtd/devices/m25p80.c
  16 +++ b/drivers/mtd/devices/m25p80.c
  17 @@ -925,10 +925,13 @@ static int m25p_probe(struct spi_device
  18         unsigned                        i;
  19         struct mtd_part_parser_data     ppdata;
  20         struct device_node __maybe_unused *np = spi->dev.of_node;
  21 +       const char __maybe_unused       *of_mtd_name = NULL;
  22
  23  #ifdef CONFIG_MTD_OF_PARTS
  24         if (!of_device_is_available(np))
  25                 return -ENODEV;
  26 +       of_property_read_string(spi->dev.of_node,
  27 +                                       "linux,mtd-name", &of_mtd_name);
  28  #endif
  29
  30         /* Platform data helps sort out which chip type we have, as
  31 @@ -1004,6 +1007,8 @@ static int m25p_probe(struct spi_device
  32
  33         if (data && data->name)
  34                 flash->mtd.name = data->name;
  35 +       else if (of_mtd_name)
  36 +               flash->mtd.name = of_mtd_name;
  37         else
  38                 flash->mtd.name = dev_name(&spi->dev);
  39