linux-kernel - [PATCH] soundwire: take in count the bandwidth of a prepared stream

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Message-ID: <20250310073653.56476-1-yung-chuan.liao@linux.intel.com>
Date: Mon, 10 Mar 2025 15:36:53 +0800
From: Bard Liao <yung-chuan.liao@...ux.intel.com>
To: linux-sound@...r.kernel.org,
	vkoul@...nel.org
Cc: vinod.koul@...aro.org,
	linux-kernel@...r.kernel.org,
	pierre-louis.bossart@...ux.dev,
	bard.liao@...el.com
Subject: [PATCH] soundwire: take in count the bandwidth of a prepared stream

When a stream's state is marked as prepared, it is ready for
playback/capture. Therefore, we need to include the stream's bandwidth
when we calculate the required bandwidth of a bus.

Fixes: 25befdf32aa40 ("soundwire: generic_bandwidth_allocation: count the bandwidth of active streams only")
Signed-off-by: Bard Liao <yung-chuan.liao@...ux.intel.com>
Link: https://github.com/thesofproject/linux/issues/5334
Reviewed-by: Richard Fitzgerald <rf@...nsource.cirrus.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@...ux.intel.com>
---
 drivers/soundwire/generic_bandwidth_allocation.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/soundwire/generic_bandwidth_allocation.c b/drivers/soundwire/generic_bandwidth_allocation.c
index b646c2ffe84a..1cfaccf43eac 100644
--- a/drivers/soundwire/generic_bandwidth_allocation.c
+++ b/drivers/soundwire/generic_bandwidth_allocation.c
@@ -237,10 +237,11 @@ static int sdw_compute_group_params(struct sdw_bus *bus,
 				continue;
 		} else {
 			/*
-			 * Include runtimes with running (ENABLED state) and paused (DISABLED state)
-			 * streams
+			 * Include runtimes with running (ENABLED/PREPARED state) and
+			 * paused (DISABLED state) streams
 			 */
 			if (m_rt->stream->state != SDW_STREAM_ENABLED &&
+			    m_rt->stream->state != SDW_STREAM_PREPARED &&
 			    m_rt->stream->state != SDW_STREAM_DISABLED)
 				continue;
 		}
-- 
2.43.0