diff options
| author | Shreyas NC <shreyas.nc@intel.com> | 2018-07-27 14:44:15 +0530 |
|---|---|---|
| committer | Vinod Koul <vkoul@kernel.org> | 2018-08-27 09:49:48 +0530 |
| commit | 9b5c132a1ec98895fe40ba73a19e0a17293122e5 (patch) | |
| tree | b200a84e1f1e305290c412510c9c40a03a135be8 | |
| parent | ce6e74d008ff5c8b43e3bafaa7343bf7eb69593e (diff) | |
soundwire: keep track of Masters in a stream
A multi link bankswitch can be done if the hardware supports and
the stream is handled by multiple Master(s).
This preparatory patch adds support to track m_rt in a stream.
Modifying m_rt_count and usage is added as part of the next patch.
Signed-off-by: Shreyas NC <shreyas.nc@intel.com>
Acked-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Vinod Koul <vkoul@kernel.org>
| -rw-r--r-- | drivers/soundwire/stream.c | 1 | ||||
| -rw-r--r-- | include/linux/soundwire/sdw.h | 2 |
2 files changed, 3 insertions, 0 deletions
diff --git a/drivers/soundwire/stream.c b/drivers/soundwire/stream.c index 3d98f20cbd6a..bd879b1a76c8 100644 --- a/drivers/soundwire/stream.c +++ b/drivers/soundwire/stream.c @@ -865,6 +865,7 @@ struct sdw_stream_runtime *sdw_alloc_stream(char *stream_name) stream->name = stream_name; INIT_LIST_HEAD(&stream->master_list); stream->state = SDW_STREAM_ALLOCATED; + stream->m_rt_count = 0; return stream; } diff --git a/include/linux/soundwire/sdw.h b/include/linux/soundwire/sdw.h index c6aa2bf847c7..df313913e856 100644 --- a/include/linux/soundwire/sdw.h +++ b/include/linux/soundwire/sdw.h @@ -775,6 +775,7 @@ struct sdw_stream_params { * @master_list: List of Master runtime(s) in this stream. * master_list can contain only one m_rt per Master instance * for a stream + * @m_rt_count: Count of Master runtime(s) in this stream */ struct sdw_stream_runtime { char *name; @@ -782,6 +783,7 @@ struct sdw_stream_runtime { enum sdw_stream_state state; enum sdw_stream_type type; struct list_head master_list; + int m_rt_count; }; struct sdw_stream_runtime *sdw_alloc_stream(char *stream_name); |