diff mbox series

[v2,06/10] soundwire: intel: add multi-link hw_synchronization information

Message ID 20200901150556.19432-7-yung-chuan.liao@linux.intel.com
State New
Headers show
Series soundwire: intel: add multi-link support | expand

Commit Message

Liao, Bard Sept. 1, 2020, 3:05 p.m. UTC 
From: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>

set the flags as required by hardware implementation

Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Bard Liao <yung-chuan.liao@linux.intel.com>
---
 drivers/soundwire/intel.c | 7 +++++++
 1 file changed, 7 insertions(+)
diff mbox series

Patch

diff --git a/drivers/soundwire/intel.c b/drivers/soundwire/intel.c
index 8634d33c388c..272826973426 100644
--- a/drivers/soundwire/intel.c
+++ b/drivers/soundwire/intel.c
@@ -1400,7 +1400,14 @@  int intel_master_startup(struct platform_device *pdev)
 		dev_dbg(dev, "Multi-link is disabled\n");
 		bus->multi_link = false;
 	} else {
+		/*
+		 * hardware-based synchronization is required regardless
+		 * of the number of segments used by a stream: SSP-based
+		 * synchronization is gated by gsync when the multi-master
+		 * mode is set.
+		 */
 		bus->multi_link = true;
+		bus->hw_sync_min_links = 1;
 	}
 
 	/* Initialize shim, controller */