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-rw-r--r--include/linux/soundwire/sdw.h12
1 files changed, 10 insertions, 2 deletions
diff --git a/include/linux/soundwire/sdw.h b/include/linux/soundwire/sdw.h
index 962971e6a9c7..df313913e856 100644
--- a/include/linux/soundwire/sdw.h
+++ b/include/linux/soundwire/sdw.h
@@ -678,6 +678,9 @@ struct sdw_master_ops {
* @defer_msg: Defer message
* @clk_stop_timeout: Clock stop timeout computed
* @bank_switch_timeout: Bank switch timeout computed
+ * @multi_link: Store bus property that indicates if multi links
+ * are supported. This flag is populated by drivers after reading
+ * appropriate firmware (ACPI/DT).
*/
struct sdw_bus {
struct device *dev;
@@ -694,6 +697,7 @@ struct sdw_bus {
struct sdw_defer defer_msg;
unsigned int clk_stop_timeout;
u32 bank_switch_timeout;
+ bool multi_link;
};
int sdw_add_bus_master(struct sdw_bus *bus);
@@ -768,14 +772,18 @@ struct sdw_stream_params {
* @params: Stream parameters
* @state: Current state of the stream
* @type: Stream type PCM or PDM
- * @m_rt: Master runtime
+ * @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;
struct sdw_stream_params params;
enum sdw_stream_state state;
enum sdw_stream_type type;
- struct sdw_master_runtime *m_rt;
+ struct list_head master_list;
+ int m_rt_count;
};
struct sdw_stream_runtime *sdw_alloc_stream(char *stream_name);
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