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charset="utf-8" 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: Srinivas Kandagatla Acked-by: Vinod Koul Reviewed-by: Dmitry Baryshkov --- drivers/soundwire/bus.c | 12 ++++++++++++ include/linux/soundwire/sdw.h | 8 ++++++++ 2 files changed, 20 insertions(+) diff --git a/drivers/soundwire/bus.c b/drivers/soundwire/bus.c index 4fd5cac799c5..55c1db816534 100644 --- a/drivers/soundwire/bus.c +++ b/drivers/soundwire/bus.c @@ -1360,6 +1360,18 @@ int sdw_slave_get_scale_index(struct sdw_slave *slav= e, u8 *base) } EXPORT_SYMBOL(sdw_slave_get_scale_index); =20 +int sdw_slave_get_current_bank(struct sdw_slave *slave) +{ + int tmp; + + tmp =3D 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; diff --git a/include/linux/soundwire/sdw.h b/include/linux/soundwire/sdw.h index 096213956d31..e6a3476bcef1 100644 --- a/include/linux/soundwire/sdw.h +++ b/include/linux/soundwire/sdw.h @@ -1089,6 +1089,8 @@ int sdw_stream_remove_slave(struct sdw_slave *slave, =20 struct device *of_sdw_find_device_by_node(struct device_node *np); =20 +int sdw_slave_get_current_bank(struct sdw_slave *sdev); + int sdw_slave_get_scale_index(struct sdw_slave *slave, u8 *base); =20 /* messaging and data APIs */ @@ -1128,6 +1130,12 @@ static inline struct device *of_sdw_find_device_by_n= ode(struct device_node *np) return NULL; } =20 +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) { --=20 2.50.0