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authorShreyas NC <shreyas.nc@intel.com>2018-07-27 14:44:16 +0530
committerVinod Koul <vkoul@kernel.org>2018-08-27 09:49:48 +0530
commitce6e74d008ff5c8b43e3bafaa7343bf7eb69593e (patch)
tree88194f56809b4631aba7cb4e7bfbb8a4b20c8afc /drivers/soundwire/bus.c
parent48949722ced4daacfa32f13c221f173b87231ead (diff)
soundwire: Add support for multi link bank switch
In cases of multiple Masters in a stream, synchronization between multiple Master(s) is achieved by performing bank switch together and using Master methods. Add sdw_ml_bank_switch() to wait for completion of bank switch. Signed-off-by: Sanyog Kale <sanyog.r.kale@intel.com> 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>
Diffstat (limited to 'drivers/soundwire/bus.c')
-rw-r--r--drivers/soundwire/bus.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/soundwire/bus.c b/drivers/soundwire/bus.c
index dbabd5e69343..1cbfedfc20ef 100644
--- a/drivers/soundwire/bus.c
+++ b/drivers/soundwire/bus.c
@@ -35,6 +35,11 @@ int sdw_add_bus_master(struct sdw_bus *bus)
INIT_LIST_HEAD(&bus->slaves);
INIT_LIST_HEAD(&bus->m_rt_list);
+ /*
+ * Initialize multi_link flag
+ * TODO: populate this flag by reading property from FW node
+ */
+ bus->multi_link = false;
if (bus->ops->read_prop) {
ret = bus->ops->read_prop(bus);
if (ret < 0) {