target/linux/brcm47xx/patches-3.2/045-bcma-add-bus-num-counter.patch

   1 From eecd733c14952b074d7488934a4f3dc83c9c426b Mon Sep 17 00:00:00 2001
   2 From: Hauke Mehrtens <hauke@hauke-m.de>
   3 Date: Sat, 14 Jan 2012 16:29:51 +0100
   4 Subject: [PATCH 28/32] bcma: add bus num counter
   5
   6 If we have two bcma buses on one computer the second will not work
   7 without this patch. Now each bus gets an own number.
   8
   9 Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
  10 ---
  11  drivers/bcma/main.c       |   12 +++++++++++-
  12  include/linux/bcma/bcma.h |    1 +
  13  2 files changed, 12 insertions(+), 1 deletions(-)
  14
  15 --- a/drivers/bcma/main.c
  16 +++ b/drivers/bcma/main.c
  17 @@ -13,6 +13,12 @@
  18  MODULE_DESCRIPTION("Broadcom's specific AMBA driver");
  19  MODULE_LICENSE("GPL");
  20
  21 +/* contains the number the next bus should get. */
  22 +static unsigned int bcma_bus_next_num = 0;
  23 +
  24 +/* bcma_buses_mutex locks the bcma_bus_next_num */
  25 +static DEFINE_MUTEX(bcma_buses_mutex);
  26 +
  27  static int bcma_bus_match(struct device *dev, struct device_driver *drv);
  28  static int bcma_device_probe(struct device *dev);
  29  static int bcma_device_remove(struct device *dev);
  30 @@ -93,7 +99,7 @@ static int bcma_register_cores(struct bc
  31
  32                 core->dev.release = bcma_release_core_dev;
  33                 core->dev.bus = &bcma_bus_type;
  34 -               dev_set_name(&core->dev, "bcma%d:%d", 0/*bus->num*/, dev_id);
  35 +               dev_set_name(&core->dev, "bcma%d:%d", bus->num, dev_id);
  36
  37                 switch (bus->hosttype) {
  38                 case BCMA_HOSTTYPE_PCI:
  39 @@ -137,6 +143,10 @@ int __devinit bcma_bus_register(struct b
  40         int err;
  41         struct bcma_device *core;
  42
  43 +       mutex_lock(&bcma_buses_mutex);
  44 +       bus->num = bcma_bus_next_num++;
  45 +       mutex_unlock(&bcma_buses_mutex);
  46 +
  47         /* Scan for devices (cores) */
  48         err = bcma_bus_scan(bus);
  49         if (err) {
  50 --- a/include/linux/bcma/bcma.h
  51 +++ b/include/linux/bcma/bcma.h
  52 @@ -196,6 +196,7 @@ struct bcma_bus {
  53         struct list_head cores;
  54         u8 nr_cores;
  55         u8 init_done:1;
  56 +       u8 num;
  57
  58         struct bcma_drv_cc drv_cc;
  59         struct bcma_drv_pci drv_pci;