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soundwire: bus: add of_sdw_find_device_by_node helper 

There has been more than 3 instances of this helper in multiple codec
drivers, it does not make sense to keep duplicating this part of code.

Lets add a helper of_sdw_find_device_by_node for codec drivers to use it.

Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@oss.qualcomm.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Acked-by: Vinod Koul <vkoul@kernel.org>
Link: https://patch.msgid.link/20250909121954.225833-4-srinivas.kandagatla@oss.qualcomm.com
Signed-off-by: Mark Brown <broonie@kernel.org>
pull/476/head^2^2
Srinivas Kandagatla 2025-09-09 13:19:44 +01:00 committed by Mark Brown
parent c4bb62eb59
commit 76cffc3eb1
No known key found for this signature in database
GPG Key ID: 24D68B725D5487D0
2 changed files with 15 additions and 0 deletions
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6
drivers/soundwire/slave.c
View File

@ -273,4 +273,10 @@ int sdw_of_find_slaves(struct sdw_bus *bus)
return 0;
}
struct device *of_sdw_find_device_by_node(struct device_node *np)
{
return bus_find_device_by_of_node(&sdw_bus_type, np);
}
EXPORT_SYMBOL_GPL(of_sdw_find_device_by_node);
MODULE_IMPORT_NS("SND_SOC_SDCA");

9
include/linux/soundwire/sdw.h
View File

@ -19,6 +19,7 @@
struct dentry;
struct fwnode_handle;
struct device_node;
struct sdw_bus;
struct sdw_slave;
@ -1086,6 +1087,8 @@ int sdw_stream_add_slave(struct sdw_slave *slave,
int sdw_stream_remove_slave(struct sdw_slave *slave,
struct sdw_stream_runtime *stream);
struct device *of_sdw_find_device_by_node(struct device_node *np);
int sdw_slave_get_scale_index(struct sdw_slave *slave, u8 *base);
/* messaging and data APIs */
@ -1119,6 +1122,12 @@ static inline int sdw_stream_remove_slave(struct sdw_slave *slave,
return -EINVAL;
}
static inline struct device *of_sdw_find_device_by_node(struct device_node *np)
{
WARN_ONCE(1, "SoundWire API is disabled");
return NULL;
}
/* messaging and data APIs */
static inline int sdw_read(struct sdw_slave *slave, u32 addr)
{