soundwire: generic_bandwidth_allocation: count the bandwidth of activ…

…e 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 <[email protected]>

drivers/soundwire/generic_bandwidth_allocation.c

@@ -190,6 +190,21 @@ static int sdw_compute_group_params(struct sdw_bus *bus,
 	}
 
 	list_for_each_entry(m_rt, &bus->m_rt_list, bus_node) {
+		/*
+		 * sdw_compute_group_params could be called in the deprepared case, skip the
+		 * m_rt in that case.
+		 */
+		if (m_rt->stream == stream)
+			if (stream->state != SDW_STREAM_CONFIGURED)
+				continue;
+		/*
+		 * Stream stage ENABLED and DISABLED are between PREPARED and DEPREPARED,
+		 * We should count the bandwidth only for ENABLED and DISABLED stages.
+		 */
+		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;