target/linux/lantiq/patches-3.14/0022-MTD-m25p80-allow-loading-mtd-name-from-OF.patch

   1 From 4400e1f593ea40a51912128adb4f53d59e62cad8 Mon Sep 17 00:00:00 2001
   2 From: John Crispin <blogic@openwrt.org>
   3 Date: Wed, 10 Sep 2014 22:40:18 +0200
   4 Subject: [PATCH 22/36] 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 |    6 ++++++
  13  1 file changed, 6 insertions(+)
  14
  15 --- a/drivers/mtd/devices/m25p80.c
  16 +++ b/drivers/mtd/devices/m25p80.c
  17 @@ -1105,6 +1105,10 @@ static int m25p_probe(struct spi_device
  18         struct mtd_part_parser_data     ppdata;
  19         struct device_node *np = spi->dev.of_node;
  20         int ret;
  21 +       const char __maybe_unused       *of_mtd_name = NULL;
  22 +
  23 +       of_property_read_string(spi->dev.of_node,
  24 +               "linux,mtd-name", &of_mtd_name);
  25
  26         /* Platform data helps sort out which chip type we have, as
  27          * well as how this board partitions it.  If we don't have
  28 @@ -1177,6 +1181,8 @@ static int m25p_probe(struct spi_device
  29
  30         if (data && data->name)
  31                 flash->mtd.name = data->name;
  32 +       else if (of_mtd_name)
  33 +               flash->mtd.name = of_mtd_name;
  34         else
  35                 flash->mtd.name = dev_name(&spi->dev);
  36