target/linux/mvebu/patches-3.10/0043-bus-mvebu-mbus-Factor-out-initialization-details.patch

   1 From 5be79ea0d2bcec8c7360cfe3e7a491e5f176fa84 Mon Sep 17 00:00:00 2001
   2 From: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
   3 Date: Tue, 21 May 2013 10:44:54 -0300
   4 Subject: [PATCH 043/203] bus: mvebu-mbus: Factor out initialization details
   5
   6 We introduce a common initialization function mvebu_mbus_common_init()
   7 that will be used by both legacy and device-tree initialization code.
   8 This patch is an intermediate step, which will allow to introduce the
   9 DT binding for this driver in a less intrusive way.
  10
  11 Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
  12 Signed-off-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
  13 Tested-by: Andrew Lunn <andrew@lunn.ch>
  14 Tested-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
  15 ---
  16  drivers/bus/mvebu-mbus.c | 47 ++++++++++++++++++++++++++++++-----------------
  17  1 file changed, 30 insertions(+), 17 deletions(-)
  18
  19 --- a/drivers/bus/mvebu-mbus.c
  20 +++ b/drivers/bus/mvebu-mbus.c
  21 @@ -847,26 +847,14 @@ static __init int mvebu_mbus_debugfs_ini
  22  }
  23  fs_initcall(mvebu_mbus_debugfs_init);
  24
  25 -int __init mvebu_mbus_init(const char *soc, phys_addr_t mbuswins_phys_base,
  26 -                          size_t mbuswins_size,
  27 -                          phys_addr_t sdramwins_phys_base,
  28 -                          size_t sdramwins_size)
  29 +static int __init mvebu_mbus_common_init(struct mvebu_mbus_state *mbus,
  30 +                                        phys_addr_t mbuswins_phys_base,
  31 +                                        size_t mbuswins_size,
  32 +                                        phys_addr_t sdramwins_phys_base,
  33 +                                        size_t sdramwins_size)
  34  {
  35 -       struct mvebu_mbus_state *mbus = &mbus_state;
  36 -       const struct of_device_id *of_id;
  37         int win;
  38
  39 -       for (of_id = of_mvebu_mbus_ids; of_id->compatible; of_id++)
  40 -               if (!strcmp(of_id->compatible, soc))
  41 -                       break;
  42 -
  43 -       if (!of_id->compatible) {
  44 -               pr_err("could not find a matching SoC family\n");
  45 -               return -ENODEV;
  46 -       }
  47 -
  48 -       mbus->soc = of_id->data;
  49 -
  50         mbus->mbuswins_base = ioremap(mbuswins_phys_base, mbuswins_size);
  51         if (!mbus->mbuswins_base)
  52                 return -ENOMEM;
  53 @@ -887,3 +875,28 @@ int __init mvebu_mbus_init(const char *s
  54
  55         return 0;
  56  }
  57 +
  58 +int __init mvebu_mbus_init(const char *soc, phys_addr_t mbuswins_phys_base,
  59 +                          size_t mbuswins_size,
  60 +                          phys_addr_t sdramwins_phys_base,
  61 +                          size_t sdramwins_size)
  62 +{
  63 +       const struct of_device_id *of_id;
  64 +
  65 +       for (of_id = of_mvebu_mbus_ids; of_id->compatible; of_id++)
  66 +               if (!strcmp(of_id->compatible, soc))
  67 +                       break;
  68 +
  69 +       if (!of_id->compatible) {
  70 +               pr_err("could not find a matching SoC family\n");
  71 +               return -ENODEV;
  72 +       }
  73 +
  74 +       mbus_state.soc = of_id->data;
  75 +
  76 +       return mvebu_mbus_common_init(&mbus_state,
  77 +                       mbuswins_phys_base,
  78 +                       mbuswins_size,
  79 +                       sdramwins_phys_base,
  80 +                       sdramwins_size);
  81 +}