Unverified Commit 2e07017b authored by Srinivas Kandagatla's avatar Srinivas Kandagatla Committed by Mark Brown
Browse files

soundwire: bus: add sdw_slave_get_current_bank helper 



There has been 2 instances of this helper in codec drivers,
it does not make sense to keep duplicating this part of code.

Lets add a helper sdw_get_current_bank() for codec drivers to use it.

Signed-off-by: default avatarSrinivas Kandagatla <srinivas.kandagatla@oss.qualcomm.com>
Acked-by: default avatarVinod Koul <vkoul@kernel.org>
Reviewed-by: default avatarDmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Link: https://patch.msgid.link/20250909121954.225833-5-srinivas.kandagatla@oss.qualcomm.com


Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent 76cffc3e

drivers/soundwire/bus.c

+12 −0
Original line number Diff line number Diff line
@@ -1360,6 +1360,18 @@ int sdw_slave_get_scale_index(struct sdw_slave *slave, u8 *base) 
}

EXPORT_SYMBOL(sdw_slave_get_scale_index);



int sdw_slave_get_current_bank(struct sdw_slave *slave)

{

	int tmp;



	tmp = sdw_read(slave, SDW_SCP_CTRL);

	if (tmp < 0)

		return tmp;



	return FIELD_GET(SDW_SCP_STAT_CURR_BANK, tmp);

}

EXPORT_SYMBOL_GPL(sdw_slave_get_current_bank);



static int sdw_slave_set_frequency(struct sdw_slave *slave)

{

	int scale_index;

include/linux/soundwire/sdw.h

+8 −0
Original line number Diff line number Diff line
@@ -1089,6 +1089,8 @@ int sdw_stream_remove_slave(struct sdw_slave *slave, 


struct device *of_sdw_find_device_by_node(struct device_node *np);



int sdw_slave_get_current_bank(struct sdw_slave *sdev);



int sdw_slave_get_scale_index(struct sdw_slave *slave, u8 *base);



/* messaging and data APIs */
@@ -1128,6 +1130,12 @@ static inline struct device *of_sdw_find_device_by_node(struct device_node *np) 
	return NULL;

}



static inline int sdw_slave_get_current_bank(struct sdw_slave *sdev)

{

	WARN_ONCE(1, "SoundWire API is disabled");

	return -EINVAL;

}



/* messaging and data APIs */

static inline int sdw_read(struct sdw_slave *slave, u32 addr)

{