soundwire: generic_bandwidth_allocation: count the bandwidth of active streams only

sdw_compute_group_params() should only count payload bandwidth of the
active streams which is in the ENABLED and DISABLED state in the bus.
And add the payload bandwidth of the stream that calls
sdw_compute_group_params() in sdw_prepare_stream().

Signed-off-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Reviewed-by: Péter Ujfalusi <peter.ujfalusi@linux.intel.com>
Link: https://lore.kernel.org/r/20241218080155.102405-15-yung-chuan.liao@linux.intel.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>

diff --git a/drivers/soundwire/generic_bandwidth_allocation.c b/drivers/soundwire/generic_bandwidth_allocation.c
index 062e748..59965f4 100644 (file)
--- a/drivers/soundwire/generic_bandwidth_allocation.c
+++ b/drivers/soundwire/generic_bandwidth_allocation.c
@@ -188,6 +188,19 @@ static int sdw_compute_group_params(struct sdw_bus *bus,
        }
 
        list_for_each_entry(m_rt, &bus->m_rt_list, bus_node) {
+               if (m_rt->stream == stream) {
+                       /* Only runtime during prepare should be added */
+                       if (stream->state != SDW_STREAM_CONFIGURED)
+                               continue;
+               } else {
+                       /*
+                        * Include runtimes with running (ENABLED state) and paused (DISABLED state)
+                        * streams
+                        */
+                       if (m_rt->stream->state != SDW_STREAM_ENABLED &&
+                           m_rt->stream->state != SDW_STREAM_DISABLED)
+                               continue;
+               }
                list_for_each_entry(p_rt, &m_rt->port_list, port_node) {
                        rate = m_rt->stream->params.rate;
                        bps = m_rt->stream->params.bps;