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soundwire: add lane_used_bandwidth in struct sdw_bus

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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@linux.intel.com>
Reviewed-by: Péter Ujfalusi <peter.ujfalusi@linux.intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20241218080155.102405-4-yung-chuan.liao@linux.intel.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
This commit is contained in:
Bard Liao
2024-12-18 16:01:44 +08:00
committed by Vinod Koul
parent 7533d0df69
commit b6a2e1be7d
1 changed files with 2 additions and 0 deletions
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2
include/linux/soundwire/sdw.h
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@@ -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,