target/linux/mvebu/patches-3.10/0187-of-Add-helper-for-printing-an-of_phandle_args-struct.patch

   1 From 061855025b6842debdf6ea2e8bfd86f50700e263 Mon Sep 17 00:00:00 2001
   2 From: Grant Likely <grant.likely@linaro.org>
   3 Date: Thu, 19 Dec 2013 09:30:58 -0300
   4 Subject: [PATCH 187/203] of: Add helper for printing an of_phandle_args
   5  structure
   6
   7 It is sometimes useful for debug to get the contents of an
   8 of_phandle_args structure out into the kernel log.
   9
  10 Signed-off-by: Grant Likely <grant.likely@linaro.org>
  11
  12 Conflicts:
  13         drivers/of/base.c
  14 ---
  15  drivers/of/base.c  | 9 +++++++++
  16  drivers/of/irq.c   | 6 +++---
  17  include/linux/of.h | 1 +
  18  3 files changed, 13 insertions(+), 3 deletions(-)
  19
  20 --- a/drivers/of/base.c
  21 +++ b/drivers/of/base.c
  22 @@ -1136,6 +1136,15 @@ EXPORT_SYMBOL(of_parse_phandle);
  23   * To get a device_node of the `node2' node you may call this:
  24   * of_parse_phandle_with_args(node3, "list", "#list-cells", 1, &args);
  25   */
  26 +void of_print_phandle_args(const char *msg, const struct of_phandle_args *args)
  27 +{
  28 +       int i;
  29 +       printk("%s %s", msg, of_node_full_name(args->np));
  30 +       for (i = 0; i < args->args_count; i++)
  31 +               printk(i ? ",%08x" : ":%08x", args->args[i]);
  32 +       printk("\n");
  33 +}
  34 +
  35  static int __of_parse_phandle_with_args(const struct device_node *np,
  36                                         const char *list_name,
  37                                         const char *cells_name, int index,
  38 --- a/drivers/of/irq.c
  39 +++ b/drivers/of/irq.c
  40 @@ -101,9 +101,9 @@ int of_irq_parse_raw(const __be32 *addr,
  41         u32 intsize = 1, addrsize, newintsize = 0, newaddrsize = 0;
  42         int imaplen, match, i;
  43
  44 -       pr_debug("of_irq_parse_raw: par=%s,intspec=[0x%08x 0x%08x...],ointsize=%d\n",
  45 -                of_node_full_name(out_irq->np), out_irq->args[0], out_irq->args[1],
  46 -                out_irq->args_count);
  47 +#ifdef DEBUG
  48 +       of_print_phandle_args("of_irq_parse_raw: ", out_irq);
  49 +#endif
  50
  51         ipar = of_node_get(out_irq->np);
  52
  53 --- a/include/linux/of.h
  54 +++ b/include/linux/of.h
  55 @@ -274,6 +274,7 @@ extern int of_n_size_cells(struct device
  56  extern const struct of_device_id *of_match_node(
  57         const struct of_device_id *matches, const struct device_node *node);
  58  extern int of_modalias_node(struct device_node *node, char *modalias, int len);
  59 +extern void of_print_phandle_args(const char *msg, const struct of_phandle_args *args);
  60  extern struct device_node *of_parse_phandle(const struct device_node *np,
  61                                             const char *phandle_name,
  62                                             int index);