[PATCH v2 3/7] [media] v4l2-subdev: add stubs for v4l2_subdev_get_try_*

[Marco Felsch]

In case of missing CONFIG_VIDEO_V4L2_SUBDEV_API those helpers aren't
available. So each driver have to add ifdefs around those helpers or
add the CONFIG_VIDEO_V4L2_SUBDEV_API as dependcy.

Make these helpers available in case of CONFIG_VIDEO_V4L2_SUBDEV_API
isn't set to avoid ifdefs. This approach is less error prone too.

Signed-off-by: Marco Felsch <m.fel...@pengutronix.de>
---
 include/media/v4l2-subdev.h | 15 ++++++++++++---
 1 file changed, 12 insertions(+), 3 deletions(-)

diff --git a/include/media/v4l2-subdev.h b/include/media/v4l2-subdev.h
index 9102d6ca566e..ce48f1fcf295 100644
--- a/include/media/v4l2-subdev.h
+++ b/include/media/v4l2-subdev.h
@@ -912,8 +912,6 @@ struct v4l2_subdev_fh {
 #define to_v4l2_subdev_fh(fh)  \
        container_of(fh, struct v4l2_subdev_fh, vfh)
 
-#if defined(CONFIG_VIDEO_V4L2_SUBDEV_API)
-
 /**
  * v4l2_subdev_get_try_format - ancillary routine to call
  *     &struct v4l2_subdev_pad_config->try_fmt
@@ -927,9 +925,13 @@ static inline struct v4l2_mbus_framefmt
                            struct v4l2_subdev_pad_config *cfg,
                            unsigned int pad)
 {
+#if defined(CONFIG_VIDEO_V4L2_SUBDEV_API)
        if (WARN_ON(pad >= sd->entity.num_pads))
                pad = 0;
        return &cfg[pad].try_fmt;
+#else
+       return NULL;
+#endif
 }
 
 /**
@@ -945,9 +947,13 @@ static inline struct v4l2_rect
                          struct v4l2_subdev_pad_config *cfg,
                          unsigned int pad)
 {
+#if defined(CONFIG_VIDEO_V4L2_SUBDEV_API)
        if (WARN_ON(pad >= sd->entity.num_pads))
                pad = 0;
        return &cfg[pad].try_crop;
+#else
+       return NULL;
+#endif
 }
 
 /**
@@ -963,11 +969,14 @@ static inline struct v4l2_rect
                             struct v4l2_subdev_pad_config *cfg,
                             unsigned int pad)
 {
+#if defined(CONFIG_VIDEO_V4L2_SUBDEV_API)
        if (WARN_ON(pad >= sd->entity.num_pads))
                pad = 0;
        return &cfg[pad].try_compose;
-}
+#else
+       return NULL;
 #endif
+}
 
 extern const struct v4l2_file_operations v4l2_subdev_fops;
 
-- 
2.18.0