target/linux/bcm27xx/patches-5.15/950-0769-media-entity-Add-link_type_name-helper.patch

   1 From 7fd3f647f18b808effb3a8d514f9b49c5c9b6d9e Mon Sep 17 00:00:00 2001
   2 From: Daniel Scally <djrscally@gmail.com>
   3 Date: Wed, 2 Mar 2022 22:03:02 +0000
   4 Subject: [PATCH] media: entity: Add link_type_name() helper
   5
   6 Now we have three types of media link, printing the right name during
   7 debug output is slightly more complicated. Add a helper function to
   8 make it easier.
   9
  10 Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
  11 Signed-off-by: Daniel Scally <djrscally@gmail.com>
  12 ---
  13  drivers/media/mc/mc-entity.c | 18 +++++++++++++++---
  14  1 file changed, 15 insertions(+), 3 deletions(-)
  15
  16 --- a/drivers/media/mc/mc-entity.c
  17 +++ b/drivers/media/mc/mc-entity.c
  18 @@ -60,6 +60,20 @@ static inline const char *intf_type(stru
  19         }
  20  };
  21
  22 +static inline const char *link_type_name(struct media_link *link)
  23 +{
  24 +       switch (link->flags & MEDIA_LNK_FL_LINK_TYPE) {
  25 +       case MEDIA_LNK_FL_DATA_LINK:
  26 +               return "data";
  27 +       case MEDIA_LNK_FL_INTERFACE_LINK:
  28 +               return "interface";
  29 +       case MEDIA_LNK_FL_ANCILLARY_LINK:
  30 +               return "ancillary";
  31 +       default:
  32 +               return "unknown";
  33 +       }
  34 +}
  35 +
  36  __must_check int __media_entity_enum_init(struct media_entity_enum *ent_enum,
  37                                           int idx_max)
  38  {
  39 @@ -107,9 +121,7 @@ static void dev_dbg_obj(const char *even
  40
  41                 dev_dbg(gobj->mdev->dev,
  42                         "%s id %u: %s link id %u ==> id %u\n",
  43 -                       event_name, media_id(gobj),
  44 -                       media_type(link->gobj0) == MEDIA_GRAPH_PAD ?
  45 -                               "data" : "interface",
  46 +                       event_name, media_id(gobj), link_type_name(link),
  47                         media_id(link->gobj0),
  48                         media_id(link->gobj1));
  49                 break;