[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-ID: <20241218080155.102405-4-yung-chuan.liao@linux.intel.com>
Date: Wed, 18 Dec 2024 16:01:44 +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 v3 03/14] soundwire: add lane_used_bandwidth in struct sdw_bus
To support multi-lane, we need to know how much bandwidth
is used on each lane. And to use the lane that has enough
bandwidth.
Signed-off-by: Bard Liao <yung-chuan.liao@...ux.intel.com>
Reviewed-by: Péter Ujfalusi <peter.ujfalusi@...ux.intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@...ux.intel.com>
---
include/linux/soundwire/sdw.h | 2 ++
1 file changed, 2 insertions(+)
diff --git a/include/linux/soundwire/sdw.h b/include/linux/soundwire/sdw.h
index bb4e33a4db17..ae38ac848d38 100644
--- a/include/linux/soundwire/sdw.h
+++ b/include/linux/soundwire/sdw.h
@@ -893,6 +893,7 @@ struct sdw_master_ops {
* @multi_link: Store bus property that indicates if multi links
* are supported. This flag is populated by drivers after reading
* appropriate firmware (ACPI/DT).
+ * @lane_used_bandwidth: how much bandwidth in bits per second is used by each lane
*/
struct sdw_bus {
struct device *dev;
@@ -924,6 +925,7 @@ struct sdw_bus {
struct dentry *debugfs;
#endif
bool multi_link;
+ unsigned int lane_used_bandwidth[SDW_MAX_LANES];
};
int sdw_bus_master_add(struct sdw_bus *bus, struct device *parent,
--
2.43.0
Powered by blists - more mailing lists