Add a convenience pointer to the 'sdw_bus' structure. BPT is a
dedicated stream which will typically not be handled by DAIs or
dailinks. Since there's only one BPT stream per link, storing the
pointer at the link level seems rather natural.
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@xxxxxxxxxxxxxxx>
---
include/linux/soundwire/sdw.h | 2 ++
1 file changed, 2 insertions(+)
diff --git a/include/linux/soundwire/sdw.h b/include/linux/soundwire/sdw.h
index e54c5bbd2b91..8db0cd7d0d89 100644
--- a/include/linux/soundwire/sdw.h
+++ b/include/linux/soundwire/sdw.h
@@ -965,6 +965,7 @@ struct sdw_master_ops {
* @stream_refcount: number of streams currently using this bus
* @btp_stream_refcount: number of BTP streams currently using this bus (should
* be zero or one, multiple streams per link is not supported).
+ * @bpt_stream: pointer stored for convenience.
*/
struct sdw_bus {
struct device *dev;
@@ -996,6 +997,7 @@ struct sdw_bus {
int hw_sync_min_links;
int stream_refcount;
int bpt_stream_refcount;
+ struct sdw_stream_runtime *bpt_stream;
};
int sdw_bus_master_add(struct sdw_bus *bus, struct device *parent,
--
2.39.2
