[PATCH v3 00/12] ASoC: codecs: wcd93xxx: remove code duplication

[PATCH v3 00/12] ASoC: codecs: wcd93xxx: remove code duplication

[Srinivas Kandagatla]

All the Qualcomm WCD codecs and WCD based codecs have lots of code in
common, resulting in lot of duplicate code.
This series is an attempt to clean some of this by moving the common
code to wcd-common library or to soundwire helper functions.

Currently I have done cleanups for 4 codecs wcd934x, wcd937x, wcd938x
and wcd939x, however any new Qualcomm codecs can avoid this duplication
by using the wcd-common library.

I have also added two helpers of_sdw_find_device_by_node() and
sdw_slave_get_current_bank() in soundwire layer for the codecs to use them,
this series was already acked by Soundwire maintainer Vinod.

As original cleanup series was depending on the new soundwire interfaces
I have combined both the series as they are cleaning up code
duplications.

As am touching the same codec drivers, a bug fix is also added at the
start of the series.

There is still lot of code that is duplicate, but this is just a
starting point for such cleanups.

I have tested this on T14s, any testing is appreciated.

Changes since v2:
	-combined other cleanup patch series 
	("[PATCH v2 0/4] ASoC: codecs: wcd937x/8x/9x: cleanup")
	https://www.spinics.net/linux/fedora/linux-sound/msg25202.html
	into this series to make it easy to apply.
	- fixed copyright text.
	- fixed few empty spaces and re-arrage header inclusion into
	  source file.

Changes since v1:
	- add new patches to remove usage of dev_get_regmap
	- add fix to wcd937x for comp soundwire ports


Srinivas Kandagatla (12):
  ASoC: codecs: wcd937x: set the comp soundwire port correctly
  soundwire: bus: add of_sdw_find_device_by_node helper
  soundwire: bus: add sdw_slave_get_current_bank helper
  ASoC: codecs: wcdxxxx: use of_sdw_find_device_by_node helper
  ASoC: codecs: wcdxxxx: use sdw_slave_get_current_bank helper
  ASoC: codecs: wcd: add common helper for wcd codecs
  ASoC: codecs: wcd-common: move WCD_SDW_CH to common
  ASoC: codecs: wcd-common: move component ops to common
  ASoC: codecs: wcd939x: get regmap directly
  ASoC: codecs: wcd-common: move status_update callback to common
  ASoC: codecs: wcd938x: get regmap directly
  ASoC: codecs: wcd937x: get regmap directly

 drivers/soundwire/bus.c        |  12 +++
 drivers/soundwire/slave.c      |   6 ++
 include/linux/soundwire/sdw.h  |  17 ++++
 sound/soc/codecs/Kconfig       |   8 ++
 sound/soc/codecs/Makefile      |   2 +
 sound/soc/codecs/wcd-common.c  | 143 +++++++++++++++++++++++++++++++++
 sound/soc/codecs/wcd-common.h  |  44 ++++++++++
 sound/soc/codecs/wcd934x.c     |  82 ++++++-------------
 sound/soc/codecs/wcd937x-sdw.c |  67 ++-------------
 sound/soc/codecs/wcd937x.c     |  85 +++++---------------
 sound/soc/codecs/wcd937x.h     |  24 ++----
 sound/soc/codecs/wcd938x-sdw.c |  83 +++----------------
 sound/soc/codecs/wcd938x.c     |  99 +++++------------------
 sound/soc/codecs/wcd938x.h     |  26 +-----
 sound/soc/codecs/wcd939x-sdw.c |  98 +++-------------------
 sound/soc/codecs/wcd939x.c     | 104 ++++++------------------
 sound/soc/codecs/wcd939x.h     |  32 +-------
 17 files changed, 354 insertions(+), 578 deletions(-)
 create mode 100644 sound/soc/codecs/wcd-common.c
 create mode 100644 sound/soc/codecs/wcd-common.h

-- 
2.50.0

[PATCH v3 01/12] ASoC: codecs: wcd937x: set the comp soundwire port correctly

[Srinivas Kandagatla]

For some reason we endup with setting soundwire port for
HPHL_COMP and HPHR_COMP as zero, this can potentially result
in a memory corruption due to accessing and setting -1 th element of
port_map array.

Fixes: 82be8c62a38c ("ASoC: codecs: wcd937x: add basic controls")
Cc: <Stable@vger.kernel.org>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@oss.qualcomm.com>
---
 sound/soc/codecs/wcd937x.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/sound/soc/codecs/wcd937x.c b/sound/soc/codecs/wcd937x.c
index 3b0a8cc314e0..de2dff3c56d3 100644
--- a/sound/soc/codecs/wcd937x.c
+++ b/sound/soc/codecs/wcd937x.c
@@ -2046,9 +2046,9 @@ static const struct snd_kcontrol_new wcd937x_snd_controls[] = {
 	SOC_ENUM_EXT("RX HPH Mode", rx_hph_mode_mux_enum,
 		     wcd937x_rx_hph_mode_get, wcd937x_rx_hph_mode_put),
 
-	SOC_SINGLE_EXT("HPHL_COMP Switch", SND_SOC_NOPM, 0, 1, 0,
+	SOC_SINGLE_EXT("HPHL_COMP Switch", WCD937X_COMP_L, 0, 1, 0,
 		       wcd937x_get_compander, wcd937x_set_compander),
-	SOC_SINGLE_EXT("HPHR_COMP Switch", SND_SOC_NOPM, 1, 1, 0,
+	SOC_SINGLE_EXT("HPHR_COMP Switch", WCD937X_COMP_R, 1, 1, 0,
 		       wcd937x_get_compander, wcd937x_set_compander),
 
 	SOC_SINGLE_TLV("HPHL Volume", WCD937X_HPH_L_EN, 0, 20, 1, line_gain),
-- 
2.50.0

Re: [PATCH v3 01/12] ASoC: codecs: wcd937x: set the comp soundwire port correctly

[Dmitry Baryshkov]

On Fri, Sep 05, 2025 at 04:44:19PM +0100, Srinivas Kandagatla wrote:
> For some reason we endup with setting soundwire port for
> HPHL_COMP and HPHR_COMP as zero, this can potentially result
> in a memory corruption due to accessing and setting -1 th element of
> port_map array.

Nit: if passing 0 here might result in a memory corrution, then
corresponding code should be fixed to warn loudly and ignore that 0.

> 
> Fixes: 82be8c62a38c ("ASoC: codecs: wcd937x: add basic controls")
> Cc: <Stable@vger.kernel.org>
> Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@oss.qualcomm.com>
> ---
>  sound/soc/codecs/wcd937x.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/sound/soc/codecs/wcd937x.c b/sound/soc/codecs/wcd937x.c
> index 3b0a8cc314e0..de2dff3c56d3 100644
> --- a/sound/soc/codecs/wcd937x.c
> +++ b/sound/soc/codecs/wcd937x.c
> @@ -2046,9 +2046,9 @@ static const struct snd_kcontrol_new wcd937x_snd_controls[] = {
>  	SOC_ENUM_EXT("RX HPH Mode", rx_hph_mode_mux_enum,
>  		     wcd937x_rx_hph_mode_get, wcd937x_rx_hph_mode_put),
>  
> -	SOC_SINGLE_EXT("HPHL_COMP Switch", SND_SOC_NOPM, 0, 1, 0,
> +	SOC_SINGLE_EXT("HPHL_COMP Switch", WCD937X_COMP_L, 0, 1, 0,
>  		       wcd937x_get_compander, wcd937x_set_compander),
> -	SOC_SINGLE_EXT("HPHR_COMP Switch", SND_SOC_NOPM, 1, 1, 0,
> +	SOC_SINGLE_EXT("HPHR_COMP Switch", WCD937X_COMP_R, 1, 1, 0,
>  		       wcd937x_get_compander, wcd937x_set_compander),
>  
>  	SOC_SINGLE_TLV("HPHL Volume", WCD937X_HPH_L_EN, 0, 20, 1, line_gain),
> -- 
> 2.50.0
> 

-- 
With best wishes
Dmitry

Re: [PATCH v3 01/12] ASoC: codecs: wcd937x: set the comp soundwire port correctly

[Srinivas Kandagatla]

On 9/5/25 5:14 PM, Dmitry Baryshkov wrote:
> On Fri, Sep 05, 2025 at 04:44:19PM +0100, Srinivas Kandagatla wrote:
>> For some reason we endup with setting soundwire port for
>> HPHL_COMP and HPHR_COMP as zero, this can potentially result
>> in a memory corruption due to accessing and setting -1 th element of
>> port_map array.
> 
> Nit: if passing 0 here might result in a memory corrution, then
> corresponding code should be fixed to warn loudly and ignore that 0.

Agreed, This is something that should be fixed at source am on it.

--srini

> 
>>
>> Fixes: 82be8c62a38c ("ASoC: codecs: wcd937x: add basic controls")
>> Cc: <Stable@vger.kernel.org>
>> Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@oss.qualcomm.com>
>> ---
>>  sound/soc/codecs/wcd937x.c | 4 ++--
>>  1 file changed, 2 insertions(+), 2 deletions(-)
>>
>> diff --git a/sound/soc/codecs/wcd937x.c b/sound/soc/codecs/wcd937x.c
>> index 3b0a8cc314e0..de2dff3c56d3 100644
>> --- a/sound/soc/codecs/wcd937x.c
>> +++ b/sound/soc/codecs/wcd937x.c
>> @@ -2046,9 +2046,9 @@ static const struct snd_kcontrol_new wcd937x_snd_controls[] = {
>>  	SOC_ENUM_EXT("RX HPH Mode", rx_hph_mode_mux_enum,
>>  		     wcd937x_rx_hph_mode_get, wcd937x_rx_hph_mode_put),
>>  
>> -	SOC_SINGLE_EXT("HPHL_COMP Switch", SND_SOC_NOPM, 0, 1, 0,
>> +	SOC_SINGLE_EXT("HPHL_COMP Switch", WCD937X_COMP_L, 0, 1, 0,
>>  		       wcd937x_get_compander, wcd937x_set_compander),
>> -	SOC_SINGLE_EXT("HPHR_COMP Switch", SND_SOC_NOPM, 1, 1, 0,
>> +	SOC_SINGLE_EXT("HPHR_COMP Switch", WCD937X_COMP_R, 1, 1, 0,
>>  		       wcd937x_get_compander, wcd937x_set_compander),
>>  
>>  	SOC_SINGLE_TLV("HPHL Volume", WCD937X_HPH_L_EN, 0, 20, 1, line_gain),
>> -- 
>> 2.50.0
>>
> 

[PATCH v3 02/12] soundwire: bus: add of_sdw_find_device_by_node helper

[Srinivas Kandagatla]

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>
---
 drivers/soundwire/slave.c     | 6 ++++++
 include/linux/soundwire/sdw.h | 9 +++++++++
 2 files changed, 15 insertions(+)

diff --git a/drivers/soundwire/slave.c b/drivers/soundwire/slave.c
index d2d99555ec5a..3d4d00188c26 100644
--- a/drivers/soundwire/slave.c
+++ b/drivers/soundwire/slave.c
@@ -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");
diff --git a/include/linux/soundwire/sdw.h b/include/linux/soundwire/sdw.h
index 0832776262ac..096213956d31 100644
--- a/include/linux/soundwire/sdw.h
+++ b/include/linux/soundwire/sdw.h
@@ -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)
 {
-- 
2.50.0

[PATCH v3 03/12] soundwire: bus: add sdw_slave_get_current_bank helper

[Srinivas Kandagatla]

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 <srinivas.kandagatla@oss.qualcomm.com>
Acked-by: Vinod Koul <vkoul@kernel.org>
---
 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 *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;
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,
 
 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)
 {
-- 
2.50.0

Re: [PATCH v3 03/12] soundwire: bus: add sdw_slave_get_current_bank helper

[Dmitry Baryshkov]

On Fri, Sep 05, 2025 at 04:44:21PM +0100, Srinivas Kandagatla wrote:
> 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 <srinivas.kandagatla@oss.qualcomm.com>
> Acked-by: Vinod Koul <vkoul@kernel.org>
> ---
>  drivers/soundwire/bus.c       | 12 ++++++++++++
>  include/linux/soundwire/sdw.h |  8 ++++++++
>  2 files changed, 20 insertions(+)
> 

Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>


-- 
With best wishes
Dmitry

[PATCH v3 04/12] ASoC: codecs: wcdxxxx: use of_sdw_find_device_by_node helper

[Srinivas Kandagatla]

use of_sdw_find_device_by_node helper function, rather than duplicating
this function in every codec driver.

Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@oss.qualcomm.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
---
 sound/soc/codecs/wcd937x-sdw.c | 6 ------
 sound/soc/codecs/wcd937x.c     | 4 ++--
 sound/soc/codecs/wcd937x.h     | 2 --
 sound/soc/codecs/wcd938x-sdw.c | 7 -------
 sound/soc/codecs/wcd938x.c     | 4 ++--
 sound/soc/codecs/wcd938x.h     | 6 ------
 sound/soc/codecs/wcd939x-sdw.c | 6 ------
 sound/soc/codecs/wcd939x.c     | 4 ++--
 sound/soc/codecs/wcd939x.h     | 6 ------
 9 files changed, 6 insertions(+), 39 deletions(-)

diff --git a/sound/soc/codecs/wcd937x-sdw.c b/sound/soc/codecs/wcd937x-sdw.c
index 1bfe7383b311..e7cc699bd8bc 100644
--- a/sound/soc/codecs/wcd937x-sdw.c
+++ b/sound/soc/codecs/wcd937x-sdw.c
@@ -78,12 +78,6 @@ static struct sdw_dpn_prop wcd937x_dpn_prop[WCD937X_MAX_SWR_PORTS] = {
 	}
 };
 
-struct device *wcd937x_sdw_device_get(struct device_node *np)
-{
-	return bus_find_device_by_of_node(&sdw_bus_type, np);
-}
-EXPORT_SYMBOL_GPL(wcd937x_sdw_device_get);
-
 int wcd937x_sdw_hw_params(struct wcd937x_sdw_priv *wcd,
 			  struct snd_pcm_substream *substream,
 			  struct snd_pcm_hw_params *params,
diff --git a/sound/soc/codecs/wcd937x.c b/sound/soc/codecs/wcd937x.c
index de2dff3c56d3..b78f37c582ca 100644
--- a/sound/soc/codecs/wcd937x.c
+++ b/sound/soc/codecs/wcd937x.c
@@ -2788,7 +2788,7 @@ static int wcd937x_bind(struct device *dev)
 		return ret;
 	}
 
-	wcd937x->rxdev = wcd937x_sdw_device_get(wcd937x->rxnode);
+	wcd937x->rxdev = of_sdw_find_device_by_node(wcd937x->rxnode);
 	if (!wcd937x->rxdev) {
 		dev_err(dev, "could not find slave with matching of node\n");
 		return -EINVAL;
@@ -2797,7 +2797,7 @@ static int wcd937x_bind(struct device *dev)
 	wcd937x->sdw_priv[AIF1_PB] = dev_get_drvdata(wcd937x->rxdev);
 	wcd937x->sdw_priv[AIF1_PB]->wcd937x = wcd937x;
 
-	wcd937x->txdev = wcd937x_sdw_device_get(wcd937x->txnode);
+	wcd937x->txdev = of_sdw_find_device_by_node(wcd937x->txnode);
 	if (!wcd937x->txdev) {
 		dev_err(dev, "could not find txslave with matching of node\n");
 		return -EINVAL;
diff --git a/sound/soc/codecs/wcd937x.h b/sound/soc/codecs/wcd937x.h
index 3ab21bb5846e..49e5dce6f8c9 100644
--- a/sound/soc/codecs/wcd937x.h
+++ b/sound/soc/codecs/wcd937x.h
@@ -549,8 +549,6 @@ int wcd937x_sdw_hw_params(struct wcd937x_sdw_priv *wcd,
 			  struct snd_pcm_hw_params *params,
 			  struct snd_soc_dai *dai);
 
-struct device *wcd937x_sdw_device_get(struct device_node *np);
-
 #else
 int wcd937x_sdw_free(struct wcd937x_sdw_priv *wcd,
 		     struct snd_pcm_substream *substream,
diff --git a/sound/soc/codecs/wcd938x-sdw.c b/sound/soc/codecs/wcd938x-sdw.c
index e822cc145250..a7514d716086 100644
--- a/sound/soc/codecs/wcd938x-sdw.c
+++ b/sound/soc/codecs/wcd938x-sdw.c
@@ -82,13 +82,6 @@ static struct sdw_dpn_prop wcd938x_dpn_prop[WCD938X_MAX_SWR_PORTS] = {
 	}
 };
 
-struct device *wcd938x_sdw_device_get(struct device_node *np)
-{
-	return bus_find_device_by_of_node(&sdw_bus_type, np);
-
-}
-EXPORT_SYMBOL_GPL(wcd938x_sdw_device_get);
-
 int wcd938x_swr_get_current_bank(struct sdw_slave *sdev)
 {
 	int bank;
diff --git a/sound/soc/codecs/wcd938x.c b/sound/soc/codecs/wcd938x.c
index 711f373ece24..e2cb0758bca7 100644
--- a/sound/soc/codecs/wcd938x.c
+++ b/sound/soc/codecs/wcd938x.c
@@ -3400,7 +3400,7 @@ static int wcd938x_bind(struct device *dev)
 		return ret;
 	}
 
-	wcd938x->rxdev = wcd938x_sdw_device_get(wcd938x->rxnode);
+	wcd938x->rxdev = of_sdw_find_device_by_node(wcd938x->rxnode);
 	if (!wcd938x->rxdev) {
 		dev_err(dev, "could not find slave with matching of node\n");
 		ret = -EINVAL;
@@ -3409,7 +3409,7 @@ static int wcd938x_bind(struct device *dev)
 	wcd938x->sdw_priv[AIF1_PB] = dev_get_drvdata(wcd938x->rxdev);
 	wcd938x->sdw_priv[AIF1_PB]->wcd938x = wcd938x;
 
-	wcd938x->txdev = wcd938x_sdw_device_get(wcd938x->txnode);
+	wcd938x->txdev = of_sdw_find_device_by_node(wcd938x->txnode);
 	if (!wcd938x->txdev) {
 		dev_err(dev, "could not find txslave with matching of node\n");
 		ret = -EINVAL;
diff --git a/sound/soc/codecs/wcd938x.h b/sound/soc/codecs/wcd938x.h
index fb6a0e4ef337..dbafcae247f4 100644
--- a/sound/soc/codecs/wcd938x.h
+++ b/sound/soc/codecs/wcd938x.h
@@ -670,7 +670,6 @@ int wcd938x_sdw_hw_params(struct wcd938x_sdw_priv *wcd,
 			  struct snd_pcm_hw_params *params,
 			  struct snd_soc_dai *dai);
 
-struct device *wcd938x_sdw_device_get(struct device_node *np);
 int wcd938x_swr_get_current_bank(struct sdw_slave *sdev);
 
 #else
@@ -697,11 +696,6 @@ static inline int wcd938x_sdw_hw_params(struct wcd938x_sdw_priv *wcd,
 	return -EOPNOTSUPP;
 }
 
-static inline struct device *wcd938x_sdw_device_get(struct device_node *np)
-{
-	return NULL;
-}
-
 static inline int wcd938x_swr_get_current_bank(struct sdw_slave *sdev)
 {
 	return 0;
diff --git a/sound/soc/codecs/wcd939x-sdw.c b/sound/soc/codecs/wcd939x-sdw.c
index f7a9323a9fea..e487a1bb0194 100644
--- a/sound/soc/codecs/wcd939x-sdw.c
+++ b/sound/soc/codecs/wcd939x-sdw.c
@@ -128,12 +128,6 @@ static struct sdw_dpn_prop wcd939x_tx_dpn_prop[WCD939X_MAX_TX_SWR_PORTS] = {
 	}
 };
 
-struct device *wcd939x_sdw_device_get(struct device_node *np)
-{
-	return bus_find_device_by_of_node(&sdw_bus_type, np);
-}
-EXPORT_SYMBOL_GPL(wcd939x_sdw_device_get);
-
 unsigned int wcd939x_swr_get_current_bank(struct sdw_slave *sdev)
 {
 	return FIELD_GET(SDW_SCP_STAT_CURR_BANK,
diff --git a/sound/soc/codecs/wcd939x.c b/sound/soc/codecs/wcd939x.c
index 64f082e474c1..5a56c79a8922 100644
--- a/sound/soc/codecs/wcd939x.c
+++ b/sound/soc/codecs/wcd939x.c
@@ -3383,7 +3383,7 @@ static int wcd939x_bind(struct device *dev)
 		goto err_put_typec_switch;
 	}
 
-	wcd939x->rxdev = wcd939x_sdw_device_get(wcd939x->rxnode);
+	wcd939x->rxdev = of_sdw_find_device_by_node(wcd939x->rxnode);
 	if (!wcd939x->rxdev) {
 		dev_err(dev, "could not find slave with matching of node\n");
 		ret = -EINVAL;
@@ -3392,7 +3392,7 @@ static int wcd939x_bind(struct device *dev)
 	wcd939x->sdw_priv[AIF1_PB] = dev_get_drvdata(wcd939x->rxdev);
 	wcd939x->sdw_priv[AIF1_PB]->wcd939x = wcd939x;
 
-	wcd939x->txdev = wcd939x_sdw_device_get(wcd939x->txnode);
+	wcd939x->txdev = of_sdw_find_device_by_node(wcd939x->txnode);
 	if (!wcd939x->txdev) {
 		dev_err(dev, "could not find txslave with matching of node\n");
 		ret = -EINVAL;
diff --git a/sound/soc/codecs/wcd939x.h b/sound/soc/codecs/wcd939x.h
index 3204fb10b58d..3f189e5cafd5 100644
--- a/sound/soc/codecs/wcd939x.h
+++ b/sound/soc/codecs/wcd939x.h
@@ -930,7 +930,6 @@ int wcd939x_sdw_hw_params(struct wcd939x_sdw_priv *wcd,
 			  struct snd_pcm_hw_params *params,
 			  struct snd_soc_dai *dai);
 
-struct device *wcd939x_sdw_device_get(struct device_node *np);
 unsigned int wcd939x_swr_get_current_bank(struct sdw_slave *sdev);
 
 struct regmap *wcd939x_swr_get_regmap(struct wcd939x_sdw_priv *wcd);
@@ -958,11 +957,6 @@ static inline int wcd939x_sdw_hw_params(struct wcd939x_sdw_priv *wcd,
 	return -EOPNOTSUPP;
 }
 
-static inline struct device *wcd939x_sdw_device_get(struct device_node *np)
-{
-	return NULL;
-}
-
 static inline unsigned int wcd939x_swr_get_current_bank(struct sdw_slave *sdev)
 {
 	return 0;
-- 
2.50.0

[PATCH v3 05/12] ASoC: codecs: wcdxxxx: use sdw_slave_get_current_bank helper

[Srinivas Kandagatla]

use sdw_slave_get_current_bank() helper function, rather than duplicating
this function in every codec driver.

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>
---
 sound/soc/codecs/wcd938x-sdw.c | 10 ----------
 sound/soc/codecs/wcd938x.c     |  3 +--
 sound/soc/codecs/wcd938x.h     |  7 -------
 sound/soc/codecs/wcd939x-sdw.c |  7 -------
 sound/soc/codecs/wcd939x.c     |  2 +-
 sound/soc/codecs/wcd939x.h     |  7 -------
 6 files changed, 2 insertions(+), 34 deletions(-)

diff --git a/sound/soc/codecs/wcd938x-sdw.c b/sound/soc/codecs/wcd938x-sdw.c
index a7514d716086..8bcd8396f375 100644
--- a/sound/soc/codecs/wcd938x-sdw.c
+++ b/sound/soc/codecs/wcd938x-sdw.c
@@ -82,16 +82,6 @@ static struct sdw_dpn_prop wcd938x_dpn_prop[WCD938X_MAX_SWR_PORTS] = {
 	}
 };
 
-int wcd938x_swr_get_current_bank(struct sdw_slave *sdev)
-{
-	int bank;
-
-	bank  = sdw_read(sdev, SDW_SCP_CTRL);
-
-	return ((bank & 0x40) ? 1 : 0);
-}
-EXPORT_SYMBOL_GPL(wcd938x_swr_get_current_bank);
-
 int wcd938x_sdw_hw_params(struct wcd938x_sdw_priv *wcd,
 			  struct snd_pcm_substream *substream,
 			  struct snd_pcm_hw_params *params,
diff --git a/sound/soc/codecs/wcd938x.c b/sound/soc/codecs/wcd938x.c
index e2cb0758bca7..f8d7bf27a6ed 100644
--- a/sound/soc/codecs/wcd938x.c
+++ b/sound/soc/codecs/wcd938x.c
@@ -1094,8 +1094,7 @@ static int wcd938x_tx_swr_ctrl(struct snd_soc_dapm_widget *w,
 	int bank;
 	int rate;
 
-	bank = (wcd938x_swr_get_current_bank(wcd938x->sdw_priv[AIF1_CAP]->sdev)) ? 0 : 1;
-	bank = bank ? 0 : 1;
+	bank = sdw_slave_get_current_bank(wcd938x->sdw_priv[AIF1_CAP]->sdev);
 
 	switch (event) {
 	case SND_SOC_DAPM_PRE_PMU:
diff --git a/sound/soc/codecs/wcd938x.h b/sound/soc/codecs/wcd938x.h
index dbafcae247f4..54ee56b7fbd6 100644
--- a/sound/soc/codecs/wcd938x.h
+++ b/sound/soc/codecs/wcd938x.h
@@ -669,9 +669,6 @@ int wcd938x_sdw_hw_params(struct wcd938x_sdw_priv *wcd,
 			  struct snd_pcm_substream *substream,
 			  struct snd_pcm_hw_params *params,
 			  struct snd_soc_dai *dai);
-
-int wcd938x_swr_get_current_bank(struct sdw_slave *sdev);
-
 #else
 
 static inline int wcd938x_sdw_free(struct wcd938x_sdw_priv *wcd,
@@ -696,9 +693,5 @@ static inline int wcd938x_sdw_hw_params(struct wcd938x_sdw_priv *wcd,
 	return -EOPNOTSUPP;
 }
 
-static inline int wcd938x_swr_get_current_bank(struct sdw_slave *sdev)
-{
-	return 0;
-}
 #endif /* CONFIG_SND_SOC_WCD938X_SDW */
 #endif /* __WCD938X_H__ */
diff --git a/sound/soc/codecs/wcd939x-sdw.c b/sound/soc/codecs/wcd939x-sdw.c
index e487a1bb0194..477d6cf27d32 100644
--- a/sound/soc/codecs/wcd939x-sdw.c
+++ b/sound/soc/codecs/wcd939x-sdw.c
@@ -128,13 +128,6 @@ static struct sdw_dpn_prop wcd939x_tx_dpn_prop[WCD939X_MAX_TX_SWR_PORTS] = {
 	}
 };
 
-unsigned int wcd939x_swr_get_current_bank(struct sdw_slave *sdev)
-{
-	return FIELD_GET(SDW_SCP_STAT_CURR_BANK,
-			 sdw_read(sdev, SDW_SCP_CTRL));
-}
-EXPORT_SYMBOL_GPL(wcd939x_swr_get_current_bank);
-
 int wcd939x_sdw_hw_params(struct wcd939x_sdw_priv *wcd,
 			  struct snd_pcm_substream *substream,
 			  struct snd_pcm_hw_params *params,
diff --git a/sound/soc/codecs/wcd939x.c b/sound/soc/codecs/wcd939x.c
index 5a56c79a8922..85730ae40c2c 100644
--- a/sound/soc/codecs/wcd939x.c
+++ b/sound/soc/codecs/wcd939x.c
@@ -1017,7 +1017,7 @@ static int wcd939x_tx_swr_ctrl(struct snd_soc_dapm_widget *w,
 	int bank;
 	int rate;
 
-	bank = wcd939x_swr_get_current_bank(wcd939x->sdw_priv[AIF1_CAP]->sdev);
+	bank = sdw_slave_get_current_bank(wcd939x->sdw_priv[AIF1_CAP]->sdev);
 
 	switch (event) {
 	case SND_SOC_DAPM_PRE_PMU:
diff --git a/sound/soc/codecs/wcd939x.h b/sound/soc/codecs/wcd939x.h
index 3f189e5cafd5..e70445b1a4bc 100644
--- a/sound/soc/codecs/wcd939x.h
+++ b/sound/soc/codecs/wcd939x.h
@@ -930,8 +930,6 @@ int wcd939x_sdw_hw_params(struct wcd939x_sdw_priv *wcd,
 			  struct snd_pcm_hw_params *params,
 			  struct snd_soc_dai *dai);
 
-unsigned int wcd939x_swr_get_current_bank(struct sdw_slave *sdev);
-
 struct regmap *wcd939x_swr_get_regmap(struct wcd939x_sdw_priv *wcd);
 #else
 
@@ -957,11 +955,6 @@ static inline int wcd939x_sdw_hw_params(struct wcd939x_sdw_priv *wcd,
 	return -EOPNOTSUPP;
 }
 
-static inline unsigned int wcd939x_swr_get_current_bank(struct sdw_slave *sdev)
-{
-	return 0;
-}
-
 struct regmap *wcd939x_swr_get_regmap(struct wcd939x_sdw_priv *wcd)
 {
 	return PTR_ERR(-EINVAL);
-- 
2.50.0

[PATCH v3 06/12] ASoC: codecs: wcd: add common helper for wcd codecs

[Srinivas Kandagatla]

All the Qualcomm WCD codecs have most of its code duplicated across all
these 3/4 drivers. This is an attempt to remove those duplicate
parts by adding a common helper library for these codecs.

To start with move all the micbias parsing and voltage settings these
are identical in WCD934x, WCD937x, WCD938x and WCD939x codec driver.

Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@oss.qualcomm.com>
---
 sound/soc/codecs/Kconfig      |  8 ++++
 sound/soc/codecs/Makefile     |  2 +
 sound/soc/codecs/wcd-common.c | 70 +++++++++++++++++++++++++++
 sound/soc/codecs/wcd-common.h | 27 +++++++++++
 sound/soc/codecs/wcd934x.c    | 82 +++++++++----------------------
 sound/soc/codecs/wcd937x.c    | 75 +++++++----------------------
 sound/soc/codecs/wcd937x.h    |  6 +--
 sound/soc/codecs/wcd938x.c    | 88 +++++++---------------------------
 sound/soc/codecs/wcd939x.c    | 90 +++++++----------------------------
 9 files changed, 183 insertions(+), 265 deletions(-)
 create mode 100644 sound/soc/codecs/wcd-common.c
 create mode 100644 sound/soc/codecs/wcd-common.h

diff --git a/sound/soc/codecs/Kconfig b/sound/soc/codecs/Kconfig
index b8d58d2fe326..f8476914e4ba 100644
--- a/sound/soc/codecs/Kconfig
+++ b/sound/soc/codecs/Kconfig
@@ -2251,12 +2251,16 @@ config SND_SOC_UDA1380
 config SND_SOC_WCD_CLASSH
 	tristate
 
+config SND_SOC_WCD_COMMON
+	tristate
+
 config SND_SOC_WCD9335
 	tristate "WCD9335 Codec"
 	depends on SLIMBUS
 	select REGMAP_SLIMBUS
 	select REGMAP_IRQ
 	select SND_SOC_WCD_CLASSH
+	select SND_SOC_WCD_COMMON
 	help
 	  The WCD9335 is a standalone Hi-Fi audio CODEC IC, supports
 	  Qualcomm Technologies, Inc. (QTI) multimedia solutions,
@@ -2272,6 +2276,7 @@ config SND_SOC_WCD934X
 	select REGMAP_IRQ
 	select REGMAP_SLIMBUS
 	select SND_SOC_WCD_CLASSH
+	select SND_SOC_WCD_COMMON
 	select SND_SOC_WCD_MBHC
 	depends on MFD_WCD934X || COMPILE_TEST
 	help
@@ -2283,6 +2288,7 @@ config SND_SOC_WCD937X
 	tristate
 	depends on SOUNDWIRE || !SOUNDWIRE
 	select SND_SOC_WCD_CLASSH
+	select SND_SOC_WCD_COMMON
 
 config SND_SOC_WCD937X_SDW
 	tristate "WCD9370/WCD9375 Codec - SDW"
@@ -2302,6 +2308,7 @@ config SND_SOC_WCD938X
 	tristate
 	depends on SOUNDWIRE || !SOUNDWIRE
 	select SND_SOC_WCD_CLASSH
+	select SND_SOC_WCD_COMMON
 	select MULTIPLEXER
 
 config SND_SOC_WCD938X_SDW
@@ -2321,6 +2328,7 @@ config SND_SOC_WCD939X
 	depends on SOUNDWIRE || !SOUNDWIRE
 	depends on TYPEC || !TYPEC
 	select SND_SOC_WCD_CLASSH
+	select SND_SOC_WCD_COMMON
 
 config SND_SOC_WCD939X_SDW
 	tristate "WCD9390/WCD9395 Codec - SDW"
diff --git a/sound/soc/codecs/Makefile b/sound/soc/codecs/Makefile
index a476d6c45451..8d9bc03ecc60 100644
--- a/sound/soc/codecs/Makefile
+++ b/sound/soc/codecs/Makefile
@@ -341,6 +341,7 @@ snd-soc-uda1334-y := uda1334.o
 snd-soc-uda1342-y := uda1342.o
 snd-soc-uda1380-y := uda1380.o
 snd-soc-wcd-classh-y := wcd-clsh-v2.o
+snd-soc-wcd-common-y := wcd-common.o
 snd-soc-wcd-mbhc-y := wcd-mbhc-v2.o
 snd-soc-wcd9335-y := wcd9335.o
 snd-soc-wcd934x-y := wcd934x.o
@@ -764,6 +765,7 @@ obj-$(CONFIG_SND_SOC_UDA1334)	+= snd-soc-uda1334.o
 obj-$(CONFIG_SND_SOC_UDA1342)	+= snd-soc-uda1342.o
 obj-$(CONFIG_SND_SOC_UDA1380)	+= snd-soc-uda1380.o
 obj-$(CONFIG_SND_SOC_WCD_CLASSH)	+= snd-soc-wcd-classh.o
+obj-$(CONFIG_SND_SOC_WCD_COMMON)	+= snd-soc-wcd-common.o
 obj-$(CONFIG_SND_SOC_WCD_MBHC)	+= snd-soc-wcd-mbhc.o
 obj-$(CONFIG_SND_SOC_WCD9335)	+= snd-soc-wcd9335.o
 obj-$(CONFIG_SND_SOC_WCD934X)	+= snd-soc-wcd934x.o
diff --git a/sound/soc/codecs/wcd-common.c b/sound/soc/codecs/wcd-common.c
new file mode 100644
index 000000000000..25c0a48ff858
--- /dev/null
+++ b/sound/soc/codecs/wcd-common.c
@@ -0,0 +1,70 @@
+// SPDX-License-Identifier: GPL-2.0-only
+// Copyright (c) 2025, Qualcomm Technologies, Inc. and/or its subsidiaries.
+
+#include <linux/export.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/device.h>
+#include <linux/of.h>
+#include <linux/printk.h>
+
+#include "wcd-common.h"
+
+#define WCD_MIN_MICBIAS_MV	1000
+#define WCD_DEF_MICBIAS_MV	1800
+#define WCD_MAX_MICBIAS_MV	2850
+
+int wcd_get_micb_vout_ctl_val(struct device *dev, u32 micb_mv)
+{
+	/* min micbias voltage is 1V and maximum is 2.85V */
+	if (micb_mv < WCD_MIN_MICBIAS_MV || micb_mv > WCD_MAX_MICBIAS_MV) {
+		dev_err(dev, "Unsupported micbias voltage (%u mV)\n", micb_mv);
+		return -EINVAL;
+	}
+
+	return (micb_mv - WCD_MIN_MICBIAS_MV) / 50;
+}
+EXPORT_SYMBOL_GPL(wcd_get_micb_vout_ctl_val);
+
+static int wcd_get_micbias_val(struct device *dev, int micb_num, u32 *micb_mv)
+{
+	char micbias[32];
+	int mv;
+
+	sprintf(micbias, "qcom,micbias%d-microvolt", micb_num);
+
+	if (of_property_read_u32(dev->of_node, micbias, &mv)) {
+		dev_err(dev, "%s value not found, using default\n", micbias);
+		mv = WCD_DEF_MICBIAS_MV;
+	} else {
+		/* convert it to milli volts */
+		mv = mv/1000;
+	}
+	if (micb_mv)
+		*micb_mv = mv;
+
+	mv = wcd_get_micb_vout_ctl_val(dev, mv);
+	if (mv < 0) {
+		dev_err(dev, "Unsupported %s voltage (%d mV), falling back to default (%d mV)\n",
+				micbias, mv, WCD_DEF_MICBIAS_MV);
+		return wcd_get_micb_vout_ctl_val(dev, WCD_DEF_MICBIAS_MV);
+	}
+
+	return mv;
+}
+
+int wcd_dt_parse_micbias_info(struct wcd_common *common)
+{
+	int i;
+
+	for (i = 0; i < common->max_bias; i++) {
+		common->micb_vout[i] = wcd_get_micbias_val(common->dev, i+1, &common->micb_mv[i]);
+		if (common->micb_vout[i] < 0)
+			return -EINVAL;
+	}
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(wcd_dt_parse_micbias_info);
+MODULE_DESCRIPTION("Common Qualcomm WCD Codec helpers driver");
+MODULE_LICENSE("GPL");
diff --git a/sound/soc/codecs/wcd-common.h b/sound/soc/codecs/wcd-common.h
new file mode 100644
index 000000000000..42d84e42d40f
--- /dev/null
+++ b/sound/soc/codecs/wcd-common.h
@@ -0,0 +1,27 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (c) 2025, Qualcomm Technologies, Inc. and/or its subsidiaries.
+ */
+
+#ifndef __WCD_COMMON_H__
+#define __WCD_COMMON_H___
+
+struct device;
+struct sdw_slave;
+struct sdw_bus_params;
+struct irq_domain;
+enum sdw_slave_status;
+
+#define WCD_MAX_MICBIAS		4
+
+struct wcd_common {
+	struct device *dev;
+	int max_bias;
+	u32 micb_mv[WCD_MAX_MICBIAS];
+	u32 micb_vout[WCD_MAX_MICBIAS];
+};
+
+int wcd_get_micb_vout_ctl_val(struct device *dev, u32 micb_mv);
+int wcd_dt_parse_micbias_info(struct wcd_common *common);
+
+#endif /* __WCD_COMMON_H___  */
diff --git a/sound/soc/codecs/wcd934x.c b/sound/soc/codecs/wcd934x.c
index 1bb7e1dc7e6b..d10b457e6c9a 100644
--- a/sound/soc/codecs/wcd934x.c
+++ b/sound/soc/codecs/wcd934x.c
@@ -21,6 +21,7 @@
 #include <sound/soc-dapm.h>
 #include <sound/tlv.h>
 #include "wcd-clsh-v2.h"
+#include "wcd-common.h"
 #include "wcd-mbhc-v2.h"
 
 #include <dt-bindings/sound/qcom,wcd934x.h>
@@ -116,9 +117,6 @@
 #define WCD934X_DEC_PWR_LVL_DF		0x00
 #define WCD934X_DEC_PWR_LVL_HYBRID WCD934X_DEC_PWR_LVL_DF
 
-#define WCD934X_DEF_MICBIAS_MV	1800
-#define WCD934X_MAX_MICBIAS_MV	2850
-
 #define WCD_IIR_FILTER_SIZE	(sizeof(u32) * BAND_MAX)
 
 #define WCD_IIR_FILTER_CTL(xname, iidx, bidx) \
@@ -530,6 +528,7 @@ struct wcd934x_codec {
 	struct slim_device *sdev;
 	struct slim_device *sidev;
 	struct wcd_clsh_ctrl *clsh_ctrl;
+	struct wcd_common common;
 	struct snd_soc_component *component;
 	struct wcd934x_slim_ch rx_chs[WCD934X_RX_MAX];
 	struct wcd934x_slim_ch tx_chs[WCD934X_TX_MAX];
@@ -555,7 +554,6 @@ struct wcd934x_codec {
 	struct mutex micb_lock;
 	u32 micb_ref[WCD934X_MAX_MICBIAS];
 	u32 pullup_ref[WCD934X_MAX_MICBIAS];
-	u32 micb2_mv;
 };
 
 #define to_wcd934x_codec(_hw) container_of(_hw, struct wcd934x_codec, hw)
@@ -2168,55 +2166,24 @@ static struct clk *wcd934x_register_mclk_output(struct wcd934x_codec *wcd)
 	return NULL;
 }
 
-static int wcd934x_get_micbias_val(struct device *dev, const char *micbias,
-				   u32 *micb_mv)
-{
-	int mv;
-
-	if (of_property_read_u32(dev->parent->of_node, micbias, &mv)) {
-		dev_err(dev, "%s value not found, using default\n", micbias);
-		mv = WCD934X_DEF_MICBIAS_MV;
-	} else {
-		/* convert it to milli volts */
-		mv = mv/1000;
-	}
-
-	if (mv < 1000 || mv > 2850) {
-		dev_err(dev, "%s value not in valid range, using default\n",
-			micbias);
-		mv = WCD934X_DEF_MICBIAS_MV;
-	}
-
-	if (micb_mv)
-		*micb_mv = mv;
-
-	return (mv - 1000) / 50;
-}
-
 static int wcd934x_init_dmic(struct snd_soc_component *comp)
 {
-	int vout_ctl_1, vout_ctl_2, vout_ctl_3, vout_ctl_4;
 	struct wcd934x_codec *wcd = dev_get_drvdata(comp->dev);
 	u32 def_dmic_rate, dmic_clk_drv;
+	int ret;
 
-	vout_ctl_1 = wcd934x_get_micbias_val(comp->dev,
-					     "qcom,micbias1-microvolt", NULL);
-	vout_ctl_2 = wcd934x_get_micbias_val(comp->dev,
-					     "qcom,micbias2-microvolt",
-					     &wcd->micb2_mv);
-	vout_ctl_3 = wcd934x_get_micbias_val(comp->dev,
-					     "qcom,micbias3-microvolt", NULL);
-	vout_ctl_4 = wcd934x_get_micbias_val(comp->dev,
-					     "qcom,micbias4-microvolt", NULL);
+	ret = wcd_dt_parse_mbhc_data(comp->dev, &wcd->mbhc_cfg);
+	if (ret)
+		return ret;
 
 	snd_soc_component_update_bits(comp, WCD934X_ANA_MICB1,
-				      WCD934X_MICB_VAL_MASK, vout_ctl_1);
+				      WCD934X_MICB_VAL_MASK, wcd->common.micb_vout[0]);
 	snd_soc_component_update_bits(comp, WCD934X_ANA_MICB2,
-				      WCD934X_MICB_VAL_MASK, vout_ctl_2);
+				      WCD934X_MICB_VAL_MASK, wcd->common.micb_vout[1]);
 	snd_soc_component_update_bits(comp, WCD934X_ANA_MICB3,
-				      WCD934X_MICB_VAL_MASK, vout_ctl_3);
+				      WCD934X_MICB_VAL_MASK, wcd->common.micb_vout[2]);
 	snd_soc_component_update_bits(comp, WCD934X_ANA_MICB4,
-				      WCD934X_MICB_VAL_MASK, vout_ctl_4);
+				      WCD934X_MICB_VAL_MASK, wcd->common.micb_vout[3]);
 
 	if (wcd->rate == WCD934X_MCLK_CLK_9P6MHZ)
 		def_dmic_rate = WCD9XXX_DMIC_SAMPLE_RATE_4P8MHZ;
@@ -2517,15 +2484,6 @@ static void wcd934x_mbhc_micb_ramp_control(struct snd_soc_component *component,
 	}
 }
 
-static int wcd934x_get_micb_vout_ctl_val(u32 micb_mv)
-{
-	/* min micbias voltage is 1V and maximum is 2.85V */
-	if (micb_mv < 1000 || micb_mv > 2850)
-		return -EINVAL;
-
-	return (micb_mv - 1000) / 50;
-}
-
 static int wcd934x_mbhc_micb_adjust_voltage(struct snd_soc_component *component,
 					    int req_volt, int micb_num)
 {
@@ -2562,7 +2520,7 @@ static int wcd934x_mbhc_micb_adjust_voltage(struct snd_soc_component *component,
 	cur_vout_ctl = snd_soc_component_read_field(component, micb_reg,
 						    WCD934X_MICB_VAL_MASK);
 
-	req_vout_ctl = wcd934x_get_micb_vout_ctl_val(req_volt);
+	req_vout_ctl = wcd_get_micb_vout_ctl_val(component->dev, req_volt);
 	if (req_vout_ctl < 0) {
 		ret = -EINVAL;
 		goto exit;
@@ -2610,10 +2568,10 @@ static int wcd934x_mbhc_micb_ctrl_threshold_mic(struct snd_soc_component *compon
 	 * voltage needed to detect threshold microphone, then do
 	 * not change the micbias, just return.
 	 */
-	if (wcd934x->micb2_mv >= WCD_MBHC_THR_HS_MICB_MV)
+	if (wcd934x->common.micb_mv[1] >= WCD_MBHC_THR_HS_MICB_MV)
 		return 0;
 
-	micb_mv = req_en ? WCD_MBHC_THR_HS_MICB_MV : wcd934x->micb2_mv;
+	micb_mv = req_en ? WCD_MBHC_THR_HS_MICB_MV : wcd934x->common.micb_mv[1];
 
 	rc = wcd934x_mbhc_micb_adjust_voltage(component, micb_mv, MIC_BIAS_2);
 
@@ -3036,7 +2994,7 @@ static void wcd934x_mbhc_deinit(struct snd_soc_component *component)
 static int wcd934x_comp_probe(struct snd_soc_component *component)
 {
 	struct wcd934x_codec *wcd = dev_get_drvdata(component->dev);
-	int i;
+	int i, ret;
 
 	snd_soc_component_init_regmap(component, wcd->regmap);
 	wcd->component = component;
@@ -3054,7 +3012,12 @@ static int wcd934x_comp_probe(struct snd_soc_component *component)
 	for (i = 0; i < NUM_CODEC_DAIS; i++)
 		INIT_LIST_HEAD(&wcd->dai[i].slim_ch_list);
 
-	wcd934x_init_dmic(component);
+
+	ret = wcd934x_init_dmic(component);
+	if (ret) {
+		dev_err(component->dev, "Failed to Initialize micbias\n");
+		return ret;
+	}
 
 	if (wcd934x_mbhc_init(component))
 		dev_err(component->dev, "Failed to Initialize MBHC\n");
@@ -5860,14 +5823,13 @@ static int wcd934x_codec_parse_data(struct wcd934x_codec *wcd)
 	cfg->anc_micbias = MIC_BIAS_2;
 	cfg->v_hs_max = WCD_MBHC_HS_V_MAX;
 	cfg->num_btn = WCD934X_MBHC_MAX_BUTTONS;
-	cfg->micb_mv = wcd->micb2_mv;
+	cfg->micb_mv = wcd->common.micb_mv[1];
 	cfg->linein_th = 5000;
 	cfg->hs_thr = 1700;
 	cfg->hph_thr = 50;
 
 	wcd_dt_parse_mbhc_data(dev, cfg);
 
-
 	return 0;
 }
 
@@ -5888,6 +5850,8 @@ static int wcd934x_codec_probe(struct platform_device *pdev)
 	wcd->sdev = to_slim_device(data->dev);
 	mutex_init(&wcd->sysclk_mutex);
 	mutex_init(&wcd->micb_lock);
+	wcd->common.dev = dev->parent;
+	wcd->common.max_bias = 4;
 
 	ret = wcd934x_codec_parse_data(wcd);
 	if (ret)
diff --git a/sound/soc/codecs/wcd937x.c b/sound/soc/codecs/wcd937x.c
index b78f37c582ca..5c8faff3976d 100644
--- a/sound/soc/codecs/wcd937x.c
+++ b/sound/soc/codecs/wcd937x.c
@@ -21,6 +21,7 @@
 #include <sound/tlv.h>
 
 #include "wcd-clsh-v2.h"
+#include "wcd-common.h"
 #include "wcd-mbhc-v2.h"
 #include "wcd937x.h"
 
@@ -85,6 +86,7 @@ struct wcd937x_priv {
 	struct wcd_mbhc_config mbhc_cfg;
 	struct wcd_mbhc_intr intr_ids;
 	struct wcd_clsh_ctrl *clsh_info;
+	struct wcd_common common;
 	struct irq_domain *virq;
 	struct regmap_irq_chip_data *irq_chip;
 	struct snd_soc_jack *jack;
@@ -93,9 +95,6 @@ struct wcd937x_priv {
 	s32 pullup_ref[WCD937X_MAX_MICBIAS];
 	u32 hph_mode;
 	int ear_rx_path;
-	u32 micb1_mv;
-	u32 micb2_mv;
-	u32 micb3_mv;
 	int hphr_pdm_wd_int;
 	int hphl_pdm_wd_int;
 	int aux_pdm_wd_int;
@@ -872,15 +871,6 @@ static int wcd937x_enable_rx3(struct snd_soc_dapm_widget *w,
 	return 0;
 }
 
-static int wcd937x_get_micb_vout_ctl_val(u32 micb_mv)
-{
-	if (micb_mv < 1000 || micb_mv > 2850) {
-		pr_err("Unsupported micbias voltage (%u mV)\n", micb_mv);
-		return -EINVAL;
-	}
-
-	return (micb_mv - 1000) / 50;
-}
 
 static int wcd937x_tx_swr_ctrl(struct snd_soc_dapm_widget *w,
 			       struct snd_kcontrol *kcontrol, int event)
@@ -1481,7 +1471,7 @@ static int wcd937x_mbhc_micb_adjust_voltage(struct snd_soc_component *component,
 	cur_vout_ctl = snd_soc_component_read_field(component, micb_reg,
 						    WCD937X_MICB_VOUT_MASK);
 
-	req_vout_ctl = wcd937x_get_micb_vout_ctl_val(req_volt);
+	req_vout_ctl = wcd_get_micb_vout_ctl_val(component->dev, req_volt);
 	if (req_vout_ctl < 0) {
 		ret = -EINVAL;
 		goto exit;
@@ -2436,22 +2426,14 @@ static const struct snd_soc_dapm_route wcd9375_audio_map[] = {
 	{ "DMIC6_MIXER", "Switch", "DMIC6" },
 };
 
-static int wcd937x_set_micbias_data(struct wcd937x_priv *wcd937x)
+static void wcd937x_set_micbias_data(struct device *dev, struct wcd937x_priv *wcd937x)
 {
-	int vout_ctl[3];
-
-	/* Set micbias voltage */
-	vout_ctl[0] = wcd937x_get_micb_vout_ctl_val(wcd937x->micb1_mv);
-	vout_ctl[1] = wcd937x_get_micb_vout_ctl_val(wcd937x->micb2_mv);
-	vout_ctl[2] = wcd937x_get_micb_vout_ctl_val(wcd937x->micb3_mv);
-	if ((vout_ctl[0] | vout_ctl[1] | vout_ctl[2]) < 0)
-		return -EINVAL;
-
-	regmap_update_bits(wcd937x->regmap, WCD937X_ANA_MICB1, WCD937X_ANA_MICB_VOUT, vout_ctl[0]);
-	regmap_update_bits(wcd937x->regmap, WCD937X_ANA_MICB2, WCD937X_ANA_MICB_VOUT, vout_ctl[1]);
-	regmap_update_bits(wcd937x->regmap, WCD937X_ANA_MICB3, WCD937X_ANA_MICB_VOUT, vout_ctl[2]);
-
-	return 0;
+	regmap_update_bits(wcd937x->regmap, WCD937X_ANA_MICB1, WCD937X_ANA_MICB_VOUT,
+			wcd937x->commmon.micb_vout[0]);
+	regmap_update_bits(wcd937x->regmap, WCD937X_ANA_MICB2, WCD937X_ANA_MICB_VOUT,
+			wcd937x->commmon.micb_vout[1]);
+	regmap_update_bits(wcd937x->regmap, WCD937X_ANA_MICB3, WCD937X_ANA_MICB_VOUT,
+			wcd937x->commmon.micb_vout[2]);
 }
 
 static irqreturn_t wcd937x_wd_handle_irq(int irq, void *data)
@@ -2630,31 +2612,6 @@ static const struct snd_soc_component_driver soc_codec_dev_wcd937x = {
 	.endianness = 1,
 };
 
-static void wcd937x_dt_parse_micbias_info(struct device *dev, struct wcd937x_priv *wcd)
-{
-	struct device_node *np = dev->of_node;
-	u32 prop_val = 0;
-	int ret = 0;
-
-	ret = of_property_read_u32(np, "qcom,micbias1-microvolt", &prop_val);
-	if (!ret)
-		wcd->micb1_mv = prop_val / 1000;
-	else
-		dev_warn(dev, "Micbias1 DT property not found\n");
-
-	ret = of_property_read_u32(np, "qcom,micbias2-microvolt", &prop_val);
-	if (!ret)
-		wcd->micb2_mv = prop_val / 1000;
-	else
-		dev_warn(dev, "Micbias2 DT property not found\n");
-
-	ret = of_property_read_u32(np, "qcom,micbias3-microvolt", &prop_val);
-	if (!ret)
-		wcd->micb3_mv = prop_val / 1000;
-	else
-		dev_warn(dev, "Micbias3 DT property not found\n");
-}
-
 static bool wcd937x_swap_gnd_mic(struct snd_soc_component *component)
 {
 	int value;
@@ -2848,11 +2805,7 @@ static int wcd937x_bind(struct device *dev)
 	wcd937x->sdw_priv[AIF1_PB]->slave_irq = wcd937x->virq;
 	wcd937x->sdw_priv[AIF1_CAP]->slave_irq = wcd937x->virq;
 
-	ret = wcd937x_set_micbias_data(wcd937x);
-	if (ret < 0) {
-		dev_err(dev, "Bad micbias pdata\n");
-		return ret;
-	}
+	wcd937x_set_micbias_data(dev, wcd937x);
 
 	ret = snd_soc_register_component(dev, &soc_codec_dev_wcd937x,
 					 wcd937x_dais, ARRAY_SIZE(wcd937x_dais));
@@ -2920,6 +2873,8 @@ static int wcd937x_probe(struct platform_device *pdev)
 
 	dev_set_drvdata(dev, wcd937x);
 	mutex_init(&wcd937x->micb_lock);
+	wcd937x->common.dev = dev;
+	wcd937x->common.max_bias = 3;
 
 	wcd937x->reset_gpio = devm_gpiod_get(dev, "reset", GPIOD_OUT_LOW);
 	if (IS_ERR(wcd937x->reset_gpio))
@@ -2939,7 +2894,9 @@ static int wcd937x_probe(struct platform_device *pdev)
 	if (ret)
 		return dev_err_probe(dev, ret, "Failed to get and enable supplies\n");
 
-	wcd937x_dt_parse_micbias_info(dev, wcd937x);
+	ret = wcd_dt_parse_micbias_info(dev, &wcd937x->common);
+	if (ret)
+		return dev_err_probe(dev, ret, "Failed to get micbias\n");
 
 	cfg->mbhc_micbias = MIC_BIAS_2;
 	cfg->anc_micbias = MIC_BIAS_2;
diff --git a/sound/soc/codecs/wcd937x.h b/sound/soc/codecs/wcd937x.h
index 49e5dce6f8c9..0f96b7108a7e 100644
--- a/sound/soc/codecs/wcd937x.h
+++ b/sound/soc/codecs/wcd937x.h
@@ -550,21 +550,21 @@ int wcd937x_sdw_hw_params(struct wcd937x_sdw_priv *wcd,
 			  struct snd_soc_dai *dai);
 
 #else
-int wcd937x_sdw_free(struct wcd937x_sdw_priv *wcd,
+static inline int wcd937x_sdw_free(struct wcd937x_sdw_priv *wcd,
 		     struct snd_pcm_substream *substream,
 		     struct snd_soc_dai *dai)
 {
 	return -EOPNOTSUPP;
 }
 
-int wcd937x_sdw_set_sdw_stream(struct wcd937x_sdw_priv *wcd,
+static inline int wcd937x_sdw_set_sdw_stream(struct wcd937x_sdw_priv *wcd,
 			       struct snd_soc_dai *dai,
 			       void *stream, int direction)
 {
 	return -EOPNOTSUPP;
 }
 
-int wcd937x_sdw_hw_params(struct wcd937x_sdw_priv *wcd,
+static inline int wcd937x_sdw_hw_params(struct wcd937x_sdw_priv *wcd,
 			  struct snd_pcm_substream *substream,
 			  struct snd_pcm_hw_params *params,
 			  struct snd_soc_dai *dai)
diff --git a/sound/soc/codecs/wcd938x.c b/sound/soc/codecs/wcd938x.c
index f8d7bf27a6ed..c8b6e543986d 100644
--- a/sound/soc/codecs/wcd938x.c
+++ b/sound/soc/codecs/wcd938x.c
@@ -22,6 +22,7 @@
 #include <linux/regulator/consumer.h>
 
 #include "wcd-clsh-v2.h"
+#include "wcd-common.h"
 #include "wcd-mbhc-v2.h"
 #include "wcd938x.h"
 
@@ -155,6 +156,7 @@ struct wcd938x_priv {
 	struct wcd_mbhc_config mbhc_cfg;
 	struct wcd_mbhc_intr intr_ids;
 	struct wcd_clsh_ctrl *clsh_info;
+	struct wcd_common common;
 	struct irq_domain *virq;
 	struct regmap_irq_chip_data *irq_chip;
 	struct snd_soc_jack *jack;
@@ -169,10 +171,6 @@ struct wcd938x_priv {
 	struct gpio_desc *us_euro_gpio;
 	struct mux_control *us_euro_mux;
 	unsigned int mux_state;
-	u32 micb1_mv;
-	u32 micb2_mv;
-	u32 micb3_mv;
-	u32 micb4_mv;
 	int hphr_pdm_wd_int;
 	int hphl_pdm_wd_int;
 	int aux_pdm_wd_int;
@@ -1974,15 +1972,6 @@ static void wcd938x_mbhc_micb_ramp_control(struct snd_soc_component *component,
 	}
 }
 
-static int wcd938x_get_micb_vout_ctl_val(u32 micb_mv)
-{
-	/* min micbias voltage is 1V and maximum is 2.85V */
-	if (micb_mv < 1000 || micb_mv > 2850)
-		return -EINVAL;
-
-	return (micb_mv - 1000) / 50;
-}
-
 static int wcd938x_mbhc_micb_adjust_voltage(struct snd_soc_component *component,
 					    int req_volt, int micb_num)
 {
@@ -2019,7 +2008,7 @@ static int wcd938x_mbhc_micb_adjust_voltage(struct snd_soc_component *component,
 	cur_vout_ctl = snd_soc_component_read_field(component, micb_reg,
 						    WCD938X_MICB_VOUT_MASK);
 
-	req_vout_ctl = wcd938x_get_micb_vout_ctl_val(req_volt);
+	req_vout_ctl = wcd_get_micb_vout_ctl_val(component->dev, req_volt);
 	if (req_vout_ctl < 0) {
 		ret = -EINVAL;
 		goto exit;
@@ -2067,10 +2056,10 @@ static int wcd938x_mbhc_micb_ctrl_threshold_mic(struct snd_soc_component *compon
 	 * voltage needed to detect threshold microphone, then do
 	 * not change the micbias, just return.
 	 */
-	if (wcd938x->micb2_mv >= WCD_MBHC_THR_HS_MICB_MV)
+	if (wcd938x->common.micb_mv[2] >= WCD_MBHC_THR_HS_MICB_MV)
 		return 0;
 
-	micb_mv = req_en ? WCD_MBHC_THR_HS_MICB_MV : wcd938x->micb2_mv;
+	micb_mv = req_en ? WCD_MBHC_THR_HS_MICB_MV : wcd938x->common.micb_mv[2];
 
 	return wcd938x_mbhc_micb_adjust_voltage(component, micb_mv, MIC_BIAS_2);
 }
@@ -2975,28 +2964,16 @@ static const struct snd_soc_dapm_route wcd938x_audio_map[] = {
 	{"EAR", NULL, "EAR PGA"},
 };
 
-static int wcd938x_set_micbias_data(struct wcd938x_priv *wcd938x)
+static void wcd938x_set_micbias_data(struct device *dev, struct wcd938x_priv *wcd938x)
 {
-	int vout_ctl_1, vout_ctl_2, vout_ctl_3, vout_ctl_4;
-
-	/* set micbias voltage */
-	vout_ctl_1 = wcd938x_get_micb_vout_ctl_val(wcd938x->micb1_mv);
-	vout_ctl_2 = wcd938x_get_micb_vout_ctl_val(wcd938x->micb2_mv);
-	vout_ctl_3 = wcd938x_get_micb_vout_ctl_val(wcd938x->micb3_mv);
-	vout_ctl_4 = wcd938x_get_micb_vout_ctl_val(wcd938x->micb4_mv);
-	if (vout_ctl_1 < 0 || vout_ctl_2 < 0 || vout_ctl_3 < 0 || vout_ctl_4 < 0)
-		return -EINVAL;
-
 	regmap_update_bits(wcd938x->regmap, WCD938X_ANA_MICB1,
-			   WCD938X_MICB_VOUT_MASK, vout_ctl_1);
+			   WCD938X_MICB_VOUT_MASK, wcd938x->common.micb_vout[0]);
 	regmap_update_bits(wcd938x->regmap, WCD938X_ANA_MICB2,
-			   WCD938X_MICB_VOUT_MASK, vout_ctl_2);
+			   WCD938X_MICB_VOUT_MASK, wcd938x->common.micb_vout[1]);
 	regmap_update_bits(wcd938x->regmap, WCD938X_ANA_MICB3,
-			   WCD938X_MICB_VOUT_MASK, vout_ctl_3);
+			   WCD938X_MICB_VOUT_MASK, wcd938x->common.micb_vout[2]);
 	regmap_update_bits(wcd938x->regmap, WCD938X_ANA_MICB4,
-			   WCD938X_MICB_VOUT_MASK, vout_ctl_4);
-
-	return 0;
+			   WCD938X_MICB_VOUT_MASK, wcd938x->common.micb_vout[3]);
 }
 
 static irqreturn_t wcd938x_wd_handle_irq(int irq, void *data)
@@ -3200,37 +3177,6 @@ static const struct snd_soc_component_driver soc_codec_dev_wcd938x = {
 	.endianness = 1,
 };
 
-static void wcd938x_dt_parse_micbias_info(struct device *dev, struct wcd938x_priv *wcd)
-{
-	struct device_node *np = dev->of_node;
-	u32 prop_val = 0;
-	int rc = 0;
-
-	rc = of_property_read_u32(np, "qcom,micbias1-microvolt",  &prop_val);
-	if (!rc)
-		wcd->micb1_mv = prop_val/1000;
-	else
-		dev_info(dev, "%s: Micbias1 DT property not found\n", __func__);
-
-	rc = of_property_read_u32(np, "qcom,micbias2-microvolt",  &prop_val);
-	if (!rc)
-		wcd->micb2_mv = prop_val/1000;
-	else
-		dev_info(dev, "%s: Micbias2 DT property not found\n", __func__);
-
-	rc = of_property_read_u32(np, "qcom,micbias3-microvolt", &prop_val);
-	if (!rc)
-		wcd->micb3_mv = prop_val/1000;
-	else
-		dev_info(dev, "%s: Micbias3 DT property not found\n", __func__);
-
-	rc = of_property_read_u32(np, "qcom,micbias4-microvolt",  &prop_val);
-	if (!rc)
-		wcd->micb4_mv = prop_val/1000;
-	else
-		dev_info(dev, "%s: Micbias4 DT property not found\n", __func__);
-}
-
 static bool wcd938x_swap_gnd_mic(struct snd_soc_component *component)
 {
 	struct wcd938x_priv *wcd938x = snd_soc_component_get_drvdata(component);
@@ -3295,13 +3241,15 @@ static int wcd938x_populate_dt_data(struct wcd938x_priv *wcd938x, struct device
 	if (ret)
 		return dev_err_probe(dev, ret, "Failed to get and enable supplies\n");
 
-	wcd938x_dt_parse_micbias_info(dev, wcd938x);
+	ret = wcd_dt_parse_micbias_info(&wcd938x->common);
+	if (ret)
+		return dev_err_probe(dev, ret, "Failed to get and enable supplies\n");
 
 	cfg->mbhc_micbias = MIC_BIAS_2;
 	cfg->anc_micbias = MIC_BIAS_2;
 	cfg->v_hs_max = WCD_MBHC_HS_V_MAX;
 	cfg->num_btn = WCD938X_MBHC_MAX_BUTTONS;
-	cfg->micb_mv = wcd938x->micb2_mv;
+	cfg->micb_mv = wcd938x->common.micb_mv[2];
 	cfg->linein_th = 5000;
 	cfg->hs_thr = 1700;
 	cfg->hph_thr = 50;
@@ -3457,11 +3405,7 @@ static int wcd938x_bind(struct device *dev)
 	wcd938x->sdw_priv[AIF1_PB]->slave_irq = wcd938x->virq;
 	wcd938x->sdw_priv[AIF1_CAP]->slave_irq = wcd938x->virq;
 
-	ret = wcd938x_set_micbias_data(wcd938x);
-	if (ret < 0) {
-		dev_err(dev, "%s: bad micbias pdata\n", __func__);
-		goto err_remove_rx_link;
-	}
+	wcd938x_set_micbias_data(dev, wcd938x);
 
 	ret = snd_soc_register_component(dev, &soc_codec_dev_wcd938x,
 					 wcd938x_dais, ARRAY_SIZE(wcd938x_dais));
@@ -3550,6 +3494,8 @@ static int wcd938x_probe(struct platform_device *pdev)
 
 	dev_set_drvdata(dev, wcd938x);
 	mutex_init(&wcd938x->micb_lock);
+	wcd938x->common.dev = dev;
+	wcd938x->common.max_bias = 4;
 
 	ret = wcd938x_populate_dt_data(wcd938x, dev);
 	if (ret)
diff --git a/sound/soc/codecs/wcd939x.c b/sound/soc/codecs/wcd939x.c
index 85730ae40c2c..59c920c50c00 100644
--- a/sound/soc/codecs/wcd939x.c
+++ b/sound/soc/codecs/wcd939x.c
@@ -28,6 +28,7 @@
 #include <linux/usb/typec_altmode.h>
 
 #include "wcd-clsh-v2.h"
+#include "wcd-common.h"
 #include "wcd-mbhc-v2.h"
 #include "wcd939x.h"
 
@@ -191,6 +192,7 @@ struct wcd939x_priv {
 	struct wcd_mbhc_config mbhc_cfg;
 	struct wcd_mbhc_intr intr_ids;
 	struct wcd_clsh_ctrl *clsh_info;
+	struct wcd_common common;
 	struct irq_domain *virq;
 	struct regmap_irq_chip_data *irq_chip;
 	struct snd_soc_jack *jack;
@@ -201,10 +203,6 @@ struct wcd939x_priv {
 	u32 tx_mode[TX_ADC_MAX];
 	int variant;
 	struct gpio_desc *reset_gpio;
-	u32 micb1_mv;
-	u32 micb2_mv;
-	u32 micb3_mv;
-	u32 micb4_mv;
 	int hphr_pdm_wd_int;
 	int hphl_pdm_wd_int;
 	int ear_pdm_wd_int;
@@ -1919,17 +1917,6 @@ static void wcd939x_mbhc_micb_ramp_control(struct snd_soc_component *component,
 	}
 }
 
-static int wcd939x_get_micb_vout_ctl_val(u32 micb_mv)
-{
-	/* min micbias voltage is 1V and maximum is 2.85V */
-	if (micb_mv < 1000 || micb_mv > 2850) {
-		pr_err("%s: unsupported micbias voltage\n", __func__);
-		return -EINVAL;
-	}
-
-	return (micb_mv - 1000) / 50;
-}
-
 static int wcd939x_mbhc_micb_adjust_voltage(struct snd_soc_component *component,
 					    int req_volt, int micb_num)
 {
@@ -1969,7 +1956,7 @@ static int wcd939x_mbhc_micb_adjust_voltage(struct snd_soc_component *component,
 	cur_vout_ctl = snd_soc_component_read_field(component, micb_reg,
 						    WCD939X_MICB_VOUT_CTL);
 
-	req_vout_ctl = wcd939x_get_micb_vout_ctl_val(req_volt);
+	req_vout_ctl = wcd_get_micb_vout_ctl_val(component->dev, req_volt);
 	if (req_vout_ctl < 0) {
 		ret = req_vout_ctl;
 		goto exit;
@@ -2021,10 +2008,10 @@ static int wcd939x_mbhc_micb_ctrl_threshold_mic(struct snd_soc_component *compon
 	 * voltage needed to detect threshold microphone, then do
 	 * not change the micbias, just return.
 	 */
-	if (wcd939x->micb2_mv >= WCD_MBHC_THR_HS_MICB_MV)
+	if (wcd939x->common.micb_mv[1] >= WCD_MBHC_THR_HS_MICB_MV)
 		return 0;
 
-	micb_mv = req_en ? WCD_MBHC_THR_HS_MICB_MV : wcd939x->micb2_mv;
+	micb_mv = req_en ? WCD_MBHC_THR_HS_MICB_MV : wcd939x->common.micb_mv[1];
 
 	return wcd939x_mbhc_micb_adjust_voltage(component, micb_mv, MIC_BIAS_2);
 }
@@ -2895,28 +2882,16 @@ static const struct snd_soc_dapm_route wcd939x_audio_map[] = {
 	{"EAR", NULL, "EAR PGA"},
 };
 
-static int wcd939x_set_micbias_data(struct wcd939x_priv *wcd939x)
+static void wcd939x_set_micbias_data(struct device *dev, struct wcd939x_priv *wcd939x)
 {
-	int vout_ctl_1, vout_ctl_2, vout_ctl_3, vout_ctl_4;
-
-	/* set micbias voltage */
-	vout_ctl_1 = wcd939x_get_micb_vout_ctl_val(wcd939x->micb1_mv);
-	vout_ctl_2 = wcd939x_get_micb_vout_ctl_val(wcd939x->micb2_mv);
-	vout_ctl_3 = wcd939x_get_micb_vout_ctl_val(wcd939x->micb3_mv);
-	vout_ctl_4 = wcd939x_get_micb_vout_ctl_val(wcd939x->micb4_mv);
-	if (vout_ctl_1 < 0 || vout_ctl_2 < 0 || vout_ctl_3 < 0 || vout_ctl_4 < 0)
-		return -EINVAL;
-
 	regmap_update_bits(wcd939x->regmap, WCD939X_ANA_MICB1,
-			   WCD939X_MICB_VOUT_CTL, vout_ctl_1);
+			   WCD939X_MICB_VOUT_CTL, wcd939x->common.micb_vout[0]);
 	regmap_update_bits(wcd939x->regmap, WCD939X_ANA_MICB2,
-			   WCD939X_MICB_VOUT_CTL, vout_ctl_2);
+			   WCD939X_MICB_VOUT_CTL, wcd939x->common.micb_vout[1]);
 	regmap_update_bits(wcd939x->regmap, WCD939X_ANA_MICB3,
-			   WCD939X_MICB_VOUT_CTL, vout_ctl_3);
+			   WCD939X_MICB_VOUT_CTL, wcd939x->common.micb_vout[2]);
 	regmap_update_bits(wcd939x->regmap, WCD939X_ANA_MICB4,
-			   WCD939X_MICB_VOUT_CTL, vout_ctl_4);
-
-	return 0;
+			   WCD939X_MICB_VOUT_CTL, wcd939x->common.micb_vout[3]);
 }
 
 static irqreturn_t wcd939x_wd_handle_irq(int irq, void *data)
@@ -3186,37 +3161,6 @@ static int wcd939x_typec_mux_set(struct typec_mux_dev *mux,
 }
 #endif /* CONFIG_TYPEC */
 
-static void wcd939x_dt_parse_micbias_info(struct device *dev, struct wcd939x_priv *wcd)
-{
-	struct device_node *np = dev->of_node;
-	u32 prop_val = 0;
-	int rc = 0;
-
-	rc = of_property_read_u32(np, "qcom,micbias1-microvolt",  &prop_val);
-	if (!rc)
-		wcd->micb1_mv = prop_val / 1000;
-	else
-		dev_info(dev, "%s: Micbias1 DT property not found\n", __func__);
-
-	rc = of_property_read_u32(np, "qcom,micbias2-microvolt",  &prop_val);
-	if (!rc)
-		wcd->micb2_mv = prop_val / 1000;
-	else
-		dev_info(dev, "%s: Micbias2 DT property not found\n", __func__);
-
-	rc = of_property_read_u32(np, "qcom,micbias3-microvolt", &prop_val);
-	if (!rc)
-		wcd->micb3_mv = prop_val / 1000;
-	else
-		dev_info(dev, "%s: Micbias3 DT property not found\n", __func__);
-
-	rc = of_property_read_u32(np, "qcom,micbias4-microvolt",  &prop_val);
-	if (!rc)
-		wcd->micb4_mv = prop_val / 1000;
-	else
-		dev_info(dev, "%s: Micbias4 DT property not found\n", __func__);
-}
-
 #if IS_ENABLED(CONFIG_TYPEC)
 static bool wcd939x_swap_gnd_mic(struct snd_soc_component *component)
 {
@@ -3252,13 +3196,15 @@ static int wcd939x_populate_dt_data(struct wcd939x_priv *wcd939x, struct device
 	if (ret)
 		return dev_err_probe(dev, ret, "Failed to get and enable supplies\n");
 
-	wcd939x_dt_parse_micbias_info(dev, wcd939x);
+	ret = wcd_dt_parse_micbias_info(&wcd939x->common);
+	if (ret)
+		return dev_err_probe(dev, ret, "Failed to get micbias\n");
 
 	cfg->mbhc_micbias = MIC_BIAS_2;
 	cfg->anc_micbias = MIC_BIAS_2;
 	cfg->v_hs_max = WCD_MBHC_HS_V_MAX;
 	cfg->num_btn = WCD939X_MBHC_MAX_BUTTONS;
-	cfg->micb_mv = wcd939x->micb2_mv;
+	cfg->micb_mv = wcd939x->common.micb_mv[1];
 	cfg->linein_th = 5000;
 	cfg->hs_thr = 1700;
 	cfg->hph_thr = 50;
@@ -3444,11 +3390,7 @@ static int wcd939x_bind(struct device *dev)
 	wcd939x->sdw_priv[AIF1_PB]->slave_irq = wcd939x->virq;
 	wcd939x->sdw_priv[AIF1_CAP]->slave_irq = wcd939x->virq;
 
-	ret = wcd939x_set_micbias_data(wcd939x);
-	if (ret < 0) {
-		dev_err(dev, "%s: bad micbias pdata\n", __func__);
-		goto err_remove_rx_link;
-	}
+	wcd939x_set_micbias_data(dev, wcd939x);
 
 	/* Check WCD9395 version */
 	regmap_read(wcd939x->regmap, WCD939X_DIGITAL_CHIP_ID1, &id1);
@@ -3613,6 +3555,8 @@ static int wcd939x_probe(struct platform_device *pdev)
 
 	dev_set_drvdata(dev, wcd939x);
 	mutex_init(&wcd939x->micb_lock);
+	wcd939x->common.dev = dev;
+	wcd939x->common.max_bias = 4;
 
 	ret = wcd939x_populate_dt_data(wcd939x, dev);
 	if (ret) {
-- 
2.50.0

Re: [PATCH v3 06/12] ASoC: codecs: wcd: add common helper for wcd codecs

[Dmitry Baryshkov]

On Fri, Sep 05, 2025 at 04:44:24PM +0100, Srinivas Kandagatla wrote:
> All the Qualcomm WCD codecs have most of its code duplicated across all
> these 3/4 drivers. This is an attempt to remove those duplicate
> parts by adding a common helper library for these codecs.
> 
> To start with move all the micbias parsing and voltage settings these
> are identical in WCD934x, WCD937x, WCD938x and WCD939x codec driver.
> 
> Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@oss.qualcomm.com>
> ---
>  sound/soc/codecs/Kconfig      |  8 ++++
>  sound/soc/codecs/Makefile     |  2 +
>  sound/soc/codecs/wcd-common.c | 70 +++++++++++++++++++++++++++
>  sound/soc/codecs/wcd-common.h | 27 +++++++++++
>  sound/soc/codecs/wcd934x.c    | 82 +++++++++----------------------
>  sound/soc/codecs/wcd937x.c    | 75 +++++++----------------------
>  sound/soc/codecs/wcd937x.h    |  6 +--
>  sound/soc/codecs/wcd938x.c    | 88 +++++++---------------------------
>  sound/soc/codecs/wcd939x.c    | 90 +++++++----------------------------
>  9 files changed, 183 insertions(+), 265 deletions(-)
>  create mode 100644 sound/soc/codecs/wcd-common.c
>  create mode 100644 sound/soc/codecs/wcd-common.h
> 

Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>


-- 
With best wishes
Dmitry

Re: [PATCH v3 06/12] ASoC: codecs: wcd: add common helper for wcd codecs

[kernel test robot]

Hi Srinivas,

kernel test robot noticed the following build errors:

[auto build test ERROR on broonie-sound/for-next]
[also build test ERROR on linus/master v6.17-rc4 next-20250905]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]

url:    https://github.com/intel-lab-lkp/linux/commits/Srinivas-Kandagatla/ASoC-codecs-wcd937x-set-the-comp-soundwire-port-correctly/20250905-234841
base:   https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git for-next
patch link:    https://lore.kernel.org/r/20250905154430.12268-7-srinivas.kandagatla%40oss.qualcomm.com
patch subject: [PATCH v3 06/12] ASoC: codecs: wcd: add common helper for wcd codecs
config: x86_64-buildonly-randconfig-001-20250907 (https://download.01.org/0day-ci/archive/20250907/202509070437.ko5lmTb9-lkp@intel.com/config)
compiler: gcc-13 (Debian 13.3.0-16) 13.3.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250907/202509070437.ko5lmTb9-lkp@intel.com/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202509070437.ko5lmTb9-lkp@intel.com/

All error/warnings (new ones prefixed by >>):

   sound/soc/codecs/wcd937x.c: In function 'wcd937x_mbhc_micb_ctrl_threshold_mic':
>> sound/soc/codecs/wcd937x.c:1522:20: error: 'struct wcd937x_priv' has no member named 'micb2_mv'
    1522 |         if (wcd937x->micb2_mv >= WCD_MBHC_THR_HS_MICB_MV)
         |                    ^~
   sound/soc/codecs/wcd937x.c:1525:61: error: 'struct wcd937x_priv' has no member named 'micb2_mv'
    1525 |         micb_mv = req_en ? WCD_MBHC_THR_HS_MICB_MV : wcd937x->micb2_mv;
         |                                                             ^~
   sound/soc/codecs/wcd937x.c: In function 'wcd937x_set_micbias_data':
>> sound/soc/codecs/wcd937x.c:2432:34: error: 'struct wcd937x_priv' has no member named 'commmon'; did you mean 'common'?
    2432 |                         wcd937x->commmon.micb_vout[0]);
         |                                  ^~~~~~~
         |                                  common
   sound/soc/codecs/wcd937x.c:2434:34: error: 'struct wcd937x_priv' has no member named 'commmon'; did you mean 'common'?
    2434 |                         wcd937x->commmon.micb_vout[1]);
         |                                  ^~~~~~~
         |                                  common
   sound/soc/codecs/wcd937x.c:2436:34: error: 'struct wcd937x_priv' has no member named 'commmon'; did you mean 'common'?
    2436 |                         wcd937x->commmon.micb_vout[2]);
         |                                  ^~~~~~~
         |                                  common
   sound/soc/codecs/wcd937x.c: In function 'wcd937x_probe':
>> sound/soc/codecs/wcd937x.c:2897:41: error: passing argument 1 of 'wcd_dt_parse_micbias_info' from incompatible pointer type [-Werror=incompatible-pointer-types]
    2897 |         ret = wcd_dt_parse_micbias_info(dev, &wcd937x->common);
         |                                         ^~~
         |                                         |
         |                                         struct device *
   In file included from sound/soc/codecs/wcd937x.c:24:
   sound/soc/codecs/wcd-common.h:25:50: note: expected 'struct wcd_common *' but argument is of type 'struct device *'
      25 | int wcd_dt_parse_micbias_info(struct wcd_common *common);
         |                               ~~~~~~~~~~~~~~~~~~~^~~~~~
>> sound/soc/codecs/wcd937x.c:2897:15: error: too many arguments to function 'wcd_dt_parse_micbias_info'
    2897 |         ret = wcd_dt_parse_micbias_info(dev, &wcd937x->common);
         |               ^~~~~~~~~~~~~~~~~~~~~~~~~
   sound/soc/codecs/wcd-common.h:25:5: note: declared here
      25 | int wcd_dt_parse_micbias_info(struct wcd_common *common);
         |     ^~~~~~~~~~~~~~~~~~~~~~~~~
   sound/soc/codecs/wcd937x.c:2905:31: error: 'struct wcd937x_priv' has no member named 'micb2_mv'
    2905 |         cfg->micb_mv = wcd937x->micb2_mv;
         |                               ^~
   cc1: some warnings being treated as errors
--
   sound/soc/codecs/wcd-common.c: In function 'wcd_dt_parse_micbias_info':
>> sound/soc/codecs/wcd-common.c:34:41: warning: '-microvolt' directive writing 10 bytes into a region of size between 9 and 19 [-Wformat-overflow=]
      34 |         sprintf(micbias, "qcom,micbias%d-microvolt", micb_num);
         |                                         ^~~~~~~~~~
   In function 'wcd_get_micbias_val',
       inlined from 'wcd_dt_parse_micbias_info' at sound/soc/codecs/wcd-common.c:61:26:
   sound/soc/codecs/wcd-common.c:34:9: note: 'sprintf' output between 24 and 34 bytes into a destination of size 32
      34 |         sprintf(micbias, "qcom,micbias%d-microvolt", micb_num);
         |         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~


vim +1522 sound/soc/codecs/wcd937x.c

9be3ec196da41b Prasad Kumpatla 2024-05-24  1508  
9be3ec196da41b Prasad Kumpatla 2024-05-24  1509  static int wcd937x_mbhc_micb_ctrl_threshold_mic(struct snd_soc_component *component,
9be3ec196da41b Prasad Kumpatla 2024-05-24  1510  						int micb_num, bool req_en)
9be3ec196da41b Prasad Kumpatla 2024-05-24  1511  {
9be3ec196da41b Prasad Kumpatla 2024-05-24  1512  	struct wcd937x_priv *wcd937x = snd_soc_component_get_drvdata(component);
9be3ec196da41b Prasad Kumpatla 2024-05-24  1513  	int micb_mv;
9be3ec196da41b Prasad Kumpatla 2024-05-24  1514  
9be3ec196da41b Prasad Kumpatla 2024-05-24  1515  	if (micb_num != MIC_BIAS_2)
9be3ec196da41b Prasad Kumpatla 2024-05-24  1516  		return -EINVAL;
9be3ec196da41b Prasad Kumpatla 2024-05-24  1517  	/*
9be3ec196da41b Prasad Kumpatla 2024-05-24  1518  	 * If device tree micbias level is already above the minimum
9be3ec196da41b Prasad Kumpatla 2024-05-24  1519  	 * voltage needed to detect threshold microphone, then do
9be3ec196da41b Prasad Kumpatla 2024-05-24  1520  	 * not change the micbias, just return.
9be3ec196da41b Prasad Kumpatla 2024-05-24  1521  	 */
9be3ec196da41b Prasad Kumpatla 2024-05-24 @1522  	if (wcd937x->micb2_mv >= WCD_MBHC_THR_HS_MICB_MV)
9be3ec196da41b Prasad Kumpatla 2024-05-24  1523  		return 0;
9be3ec196da41b Prasad Kumpatla 2024-05-24  1524  
9be3ec196da41b Prasad Kumpatla 2024-05-24  1525  	micb_mv = req_en ? WCD_MBHC_THR_HS_MICB_MV : wcd937x->micb2_mv;
9be3ec196da41b Prasad Kumpatla 2024-05-24  1526  
9be3ec196da41b Prasad Kumpatla 2024-05-24  1527  	return wcd937x_mbhc_micb_adjust_voltage(component, micb_mv, MIC_BIAS_2);
9be3ec196da41b Prasad Kumpatla 2024-05-24  1528  }
9be3ec196da41b Prasad Kumpatla 2024-05-24  1529  

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki

Re: [PATCH v3 06/12] ASoC: codecs: wcd: add common helper for wcd codecs

[Srinivas Kandagatla]

On 9/6/25 9:23 PM, kernel test robot wrote:
> Hi Srinivas,
> 
> kernel test robot noticed the following build errors:
> 
> [auto build test ERROR on broonie-sound/for-next]
> [also build test ERROR on linus/master v6.17-rc4 next-20250905]
> [If your patch is applied to the wrong git tree, kindly drop us a note.
> And when submitting patch, we suggest to use '--base' as documented in
> https://git-scm.com/docs/git-format-patch#_base_tree_information]
> 
> url:    https://github.com/intel-lab-lkp/linux/commits/Srinivas-Kandagatla/ASoC-codecs-wcd937x-set-the-comp-soundwire-port-correctly/20250905-234841
> base:   https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git for-next
> patch link:    https://lore.kernel.org/r/20250905154430.12268-7-srinivas.kandagatla%40oss.qualcomm.com
> patch subject: [PATCH v3 06/12] ASoC: codecs: wcd: add common helper for wcd codecs
> config: x86_64-buildonly-randconfig-001-20250907 (https://download.01.org/0day-ci/archive/20250907/202509070437.ko5lmTb9-lkp@intel.com/config)
> compiler: gcc-13 (Debian 13.3.0-16) 13.3.0
> reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250907/202509070437.ko5lmTb9-lkp@intel.com/reproduce)
> 
> If you fix the issue in a separate patch/commit (i.e. not just a new version of
> the same patch/commit), kindly add following tags
> | Reported-by: kernel test robot <lkp@intel.com>
> | Closes: https://lore.kernel.org/oe-kbuild-all/202509070437.ko5lmTb9-lkp@intel.com/
> 
> All error/warnings (new ones prefixed by >>):
> 
>    sound/soc/codecs/wcd937x.c: In function 'wcd937x_mbhc_micb_ctrl_threshold_mic':
>>> sound/soc/codecs/wcd937x.c:1522:20: error: 'struct wcd937x_priv' has no member named 'micb2_mv'
>     1522 |         if (wcd937x->micb2_mv >= WCD_MBHC_THR_HS_MICB_MV)
>          |                    ^~

Thanks for the report,

Sorry about this, I was blindly assuming that wcd937x was part of arm64
defconfig. And there was a typo in the header too,
This is now fixed in v4.

--srini

>    sound/soc/codecs/wcd937x.c:1525:61: error: 'struct wcd937x_priv' has no member named 'micb2_mv'
>     1525 |         micb_mv = req_en ? WCD_MBHC_THR_HS_MICB_MV : wcd937x->micb2_mv;
>          |                                                             ^~
>    sound/soc/codecs/wcd937x.c: In function 'wcd937x_set_micbias_data':
>>> sound/soc/codecs/wcd937x.c:2432:34: error: 'struct wcd937x_priv' has no member named 'commmon'; did you mean 'common'?
>     2432 |                         wcd937x->commmon.micb_vout[0]);
>          |                                  ^~~~~~~
>          |                                  common
>    sound/soc/codecs/wcd937x.c:2434:34: error: 'struct wcd937x_priv' has no member named 'commmon'; did you mean 'common'?
>     2434 |                         wcd937x->commmon.micb_vout[1]);
>          |                                  ^~~~~~~
>          |                                  common
>    sound/soc/codecs/wcd937x.c:2436:34: error: 'struct wcd937x_priv' has no member named 'commmon'; did you mean 'common'?
>     2436 |                         wcd937x->commmon.micb_vout[2]);
>          |                                  ^~~~~~~
>          |                                  common
>    sound/soc/codecs/wcd937x.c: In function 'wcd937x_probe':
>>> sound/soc/codecs/wcd937x.c:2897:41: error: passing argument 1 of 'wcd_dt_parse_micbias_info' from incompatible pointer type [-Werror=incompatible-pointer-types]
>     2897 |         ret = wcd_dt_parse_micbias_info(dev, &wcd937x->common);
>          |                                         ^~~
>          |                                         |
>          |                                         struct device *
>    In file included from sound/soc/codecs/wcd937x.c:24:
>    sound/soc/codecs/wcd-common.h:25:50: note: expected 'struct wcd_common *' but argument is of type 'struct device *'
>       25 | int wcd_dt_parse_micbias_info(struct wcd_common *common);
>          |                               ~~~~~~~~~~~~~~~~~~~^~~~~~
>>> sound/soc/codecs/wcd937x.c:2897:15: error: too many arguments to function 'wcd_dt_parse_micbias_info'
>     2897 |         ret = wcd_dt_parse_micbias_info(dev, &wcd937x->common);
>          |               ^~~~~~~~~~~~~~~~~~~~~~~~~
>    sound/soc/codecs/wcd-common.h:25:5: note: declared here
>       25 | int wcd_dt_parse_micbias_info(struct wcd_common *common);
>          |     ^~~~~~~~~~~~~~~~~~~~~~~~~
>    sound/soc/codecs/wcd937x.c:2905:31: error: 'struct wcd937x_priv' has no member named 'micb2_mv'
>     2905 |         cfg->micb_mv = wcd937x->micb2_mv;
>          |                               ^~
>    cc1: some warnings being treated as errors
> --
>    sound/soc/codecs/wcd-common.c: In function 'wcd_dt_parse_micbias_info':
>>> sound/soc/codecs/wcd-common.c:34:41: warning: '-microvolt' directive writing 10 bytes into a region of size between 9 and 19 [-Wformat-overflow=]
>       34 |         sprintf(micbias, "qcom,micbias%d-microvolt", micb_num);
>          |                                         ^~~~~~~~~~
>    In function 'wcd_get_micbias_val',
>        inlined from 'wcd_dt_parse_micbias_info' at sound/soc/codecs/wcd-common.c:61:26:
>    sound/soc/codecs/wcd-common.c:34:9: note: 'sprintf' output between 24 and 34 bytes into a destination of size 32
>       34 |         sprintf(micbias, "qcom,micbias%d-microvolt", micb_num);
>          |         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> 
> 
> vim +1522 sound/soc/codecs/wcd937x.c
> 
> 9be3ec196da41b Prasad Kumpatla 2024-05-24  1508  
> 9be3ec196da41b Prasad Kumpatla 2024-05-24  1509  static int wcd937x_mbhc_micb_ctrl_threshold_mic(struct snd_soc_component *component,
> 9be3ec196da41b Prasad Kumpatla 2024-05-24  1510  						int micb_num, bool req_en)
> 9be3ec196da41b Prasad Kumpatla 2024-05-24  1511  {
> 9be3ec196da41b Prasad Kumpatla 2024-05-24  1512  	struct wcd937x_priv *wcd937x = snd_soc_component_get_drvdata(component);
> 9be3ec196da41b Prasad Kumpatla 2024-05-24  1513  	int micb_mv;
> 9be3ec196da41b Prasad Kumpatla 2024-05-24  1514  
> 9be3ec196da41b Prasad Kumpatla 2024-05-24  1515  	if (micb_num != MIC_BIAS_2)
> 9be3ec196da41b Prasad Kumpatla 2024-05-24  1516  		return -EINVAL;
> 9be3ec196da41b Prasad Kumpatla 2024-05-24  1517  	/*
> 9be3ec196da41b Prasad Kumpatla 2024-05-24  1518  	 * If device tree micbias level is already above the minimum
> 9be3ec196da41b Prasad Kumpatla 2024-05-24  1519  	 * voltage needed to detect threshold microphone, then do
> 9be3ec196da41b Prasad Kumpatla 2024-05-24  1520  	 * not change the micbias, just return.
> 9be3ec196da41b Prasad Kumpatla 2024-05-24  1521  	 */
> 9be3ec196da41b Prasad Kumpatla 2024-05-24 @1522  	if (wcd937x->micb2_mv >= WCD_MBHC_THR_HS_MICB_MV)
> 9be3ec196da41b Prasad Kumpatla 2024-05-24  1523  		return 0;
> 9be3ec196da41b Prasad Kumpatla 2024-05-24  1524  
> 9be3ec196da41b Prasad Kumpatla 2024-05-24  1525  	micb_mv = req_en ? WCD_MBHC_THR_HS_MICB_MV : wcd937x->micb2_mv;
> 9be3ec196da41b Prasad Kumpatla 2024-05-24  1526  
> 9be3ec196da41b Prasad Kumpatla 2024-05-24  1527  	return wcd937x_mbhc_micb_adjust_voltage(component, micb_mv, MIC_BIAS_2);
> 9be3ec196da41b Prasad Kumpatla 2024-05-24  1528  }
> 9be3ec196da41b Prasad Kumpatla 2024-05-24  1529  
> 

[PATCH v3 07/12] ASoC: codecs: wcd-common: move WCD_SDW_CH to common

[Srinivas Kandagatla]

sdw_ch_info and WCD_SDW_CH macro is duplicated across wcd937x, wcd938x,
wcd939x soundwire codec drivers. Move this to wcd common driver to
remove this code duplication.

Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@oss.qualcomm.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
---
 sound/soc/codecs/wcd-common.h  | 11 +++++++++++
 sound/soc/codecs/wcd937x-sdw.c |  4 ++--
 sound/soc/codecs/wcd937x.h     | 16 ++--------------
 sound/soc/codecs/wcd938x-sdw.c |  5 +++--
 sound/soc/codecs/wcd938x.c     |  2 +-
 sound/soc/codecs/wcd938x.h     | 13 +------------
 sound/soc/codecs/wcd939x-sdw.c |  5 +++--
 sound/soc/codecs/wcd939x.c     |  2 +-
 sound/soc/codecs/wcd939x.h     | 13 +------------
 9 files changed, 25 insertions(+), 46 deletions(-)

diff --git a/sound/soc/codecs/wcd-common.h b/sound/soc/codecs/wcd-common.h
index 42d84e42d40f..ca602718c9ba 100644
--- a/sound/soc/codecs/wcd-common.h
+++ b/sound/soc/codecs/wcd-common.h
@@ -14,6 +14,17 @@ enum sdw_slave_status;
 
 #define WCD_MAX_MICBIAS		4
 
+struct wcd_sdw_ch_info {
+	int port_num;
+	unsigned int ch_mask;
+};
+
+#define WCD_SDW_CH(id, pn, cmask)	\
+	[id] = {			\
+		.port_num = pn,		\
+		.ch_mask = cmask,	\
+	}
+
 struct wcd_common {
 	struct device *dev;
 	int max_bias;
diff --git a/sound/soc/codecs/wcd937x-sdw.c b/sound/soc/codecs/wcd937x-sdw.c
index e7cc699bd8bc..8f2819163527 100644
--- a/sound/soc/codecs/wcd937x-sdw.c
+++ b/sound/soc/codecs/wcd937x-sdw.c
@@ -19,7 +19,7 @@
 #include <sound/soc.h>
 #include "wcd937x.h"
 
-static struct wcd937x_sdw_ch_info wcd937x_sdw_rx_ch_info[] = {
+static struct wcd_sdw_ch_info wcd937x_sdw_rx_ch_info[] = {
 	WCD_SDW_CH(WCD937X_HPH_L, WCD937X_HPH_PORT, BIT(0)),
 	WCD_SDW_CH(WCD937X_HPH_R, WCD937X_HPH_PORT, BIT(1)),
 	WCD_SDW_CH(WCD937X_CLSH, WCD937X_CLSH_PORT, BIT(0)),
@@ -30,7 +30,7 @@ static struct wcd937x_sdw_ch_info wcd937x_sdw_rx_ch_info[] = {
 	WCD_SDW_CH(WCD937X_DSD_R, WCD937X_DSD_PORT, BIT(1)),
 };
 
-static struct wcd937x_sdw_ch_info wcd937x_sdw_tx_ch_info[] = {
+static struct wcd_sdw_ch_info wcd937x_sdw_tx_ch_info[] = {
 	WCD_SDW_CH(WCD937X_ADC1, WCD937X_ADC_1_PORT, BIT(0)),
 	WCD_SDW_CH(WCD937X_ADC2, WCD937X_ADC_2_3_PORT, BIT(0)),
 	WCD_SDW_CH(WCD937X_ADC3, WCD937X_ADC_2_3_PORT, BIT(0)),
diff --git a/sound/soc/codecs/wcd937x.h b/sound/soc/codecs/wcd937x.h
index 0f96b7108a7e..3d0ba3cc0ee6 100644
--- a/sound/soc/codecs/wcd937x.h
+++ b/sound/soc/codecs/wcd937x.h
@@ -7,6 +7,7 @@
 
 #include <linux/soundwire/sdw.h>
 #include <linux/soundwire/sdw_type.h>
+#include "wcd-common.h"
 
 #define WCD937X_BASE_ADDRESS			0x3000
 #define WCD937X_ANA_BIAS			0x3001
@@ -507,26 +508,13 @@ enum wcd937x_rx_sdw_ports {
 	WCD937X_MAX_SWR_PORTS = WCD937X_DSD_PORT,
 };
 
-struct wcd937x_sdw_ch_info {
-	int port_num;
-	unsigned int ch_mask;
-	unsigned int master_ch_mask;
-};
-
-#define WCD_SDW_CH(id, pn, cmask)	\
-	[id] = {			\
-		.port_num = pn,		\
-		.ch_mask = cmask,	\
-		.master_ch_mask = cmask,	\
-	}
-
 struct wcd937x_priv;
 struct wcd937x_sdw_priv {
 	struct sdw_slave *sdev;
 	struct sdw_stream_config sconfig;
 	struct sdw_stream_runtime *sruntime;
 	struct sdw_port_config port_config[WCD937X_MAX_SWR_PORTS];
-	struct wcd937x_sdw_ch_info *ch_info;
+	struct wcd_sdw_ch_info *ch_info;
 	bool port_enable[WCD937X_MAX_SWR_CH_IDS];
 	unsigned int master_channel_map[SDW_MAX_PORTS];
 	int active_ports;
diff --git a/sound/soc/codecs/wcd938x-sdw.c b/sound/soc/codecs/wcd938x-sdw.c
index 8bcd8396f375..1dc13b6fabfa 100644
--- a/sound/soc/codecs/wcd938x-sdw.c
+++ b/sound/soc/codecs/wcd938x-sdw.c
@@ -18,10 +18,11 @@
 #include <sound/soc.h>
 #include <sound/soc-dapm.h>
 #include "wcd938x.h"
+#include "wcd-common.h"
 
 #define SWRS_SCP_HOST_CLK_DIV2_CTL_BANK(m) (0xE0 + 0x10 * (m))
 
-static const struct wcd938x_sdw_ch_info wcd938x_sdw_rx_ch_info[] = {
+static const struct wcd_sdw_ch_info wcd938x_sdw_rx_ch_info[] = {
 	WCD_SDW_CH(WCD938X_HPH_L, WCD938X_HPH_PORT, BIT(0)),
 	WCD_SDW_CH(WCD938X_HPH_R, WCD938X_HPH_PORT, BIT(1)),
 	WCD_SDW_CH(WCD938X_CLSH, WCD938X_CLSH_PORT, BIT(0)),
@@ -32,7 +33,7 @@ static const struct wcd938x_sdw_ch_info wcd938x_sdw_rx_ch_info[] = {
 	WCD_SDW_CH(WCD938X_DSD_R, WCD938X_DSD_PORT, BIT(1)),
 };
 
-static const struct wcd938x_sdw_ch_info wcd938x_sdw_tx_ch_info[] = {
+static const struct wcd_sdw_ch_info wcd938x_sdw_tx_ch_info[] = {
 	WCD_SDW_CH(WCD938X_ADC1, WCD938X_ADC_1_2_PORT, BIT(0)),
 	WCD_SDW_CH(WCD938X_ADC2, WCD938X_ADC_1_2_PORT, BIT(1)),
 	WCD_SDW_CH(WCD938X_ADC3, WCD938X_ADC_3_4_PORT, BIT(0)),
diff --git a/sound/soc/codecs/wcd938x.c b/sound/soc/codecs/wcd938x.c
index c8b6e543986d..e495f98972f1 100644
--- a/sound/soc/codecs/wcd938x.c
+++ b/sound/soc/codecs/wcd938x.c
@@ -394,7 +394,7 @@ static int wcd938x_io_init(struct wcd938x_priv *wcd938x)
 
 }
 
-static int wcd938x_sdw_connect_port(const struct wcd938x_sdw_ch_info *ch_info,
+static int wcd938x_sdw_connect_port(const struct wcd_sdw_ch_info *ch_info,
 				    struct sdw_port_config *port_config,
 				    u8 enable)
 {
diff --git a/sound/soc/codecs/wcd938x.h b/sound/soc/codecs/wcd938x.h
index 54ee56b7fbd6..c18610466d7d 100644
--- a/sound/soc/codecs/wcd938x.h
+++ b/sound/soc/codecs/wcd938x.h
@@ -587,17 +587,6 @@
 
 #define WCD938X_MAX_SWR_CH_IDS	15
 
-struct wcd938x_sdw_ch_info {
-	int port_num;
-	unsigned int ch_mask;
-};
-
-#define WCD_SDW_CH(id, pn, cmask)	\
-	[id] = {			\
-		.port_num = pn,		\
-		.ch_mask = cmask,	\
-	}
-
 enum wcd938x_tx_sdw_ports {
 	WCD938X_ADC_1_2_PORT = 1,
 	WCD938X_ADC_3_4_PORT,
@@ -649,7 +638,7 @@ struct wcd938x_sdw_priv {
 	struct sdw_stream_config sconfig;
 	struct sdw_stream_runtime *sruntime;
 	struct sdw_port_config port_config[WCD938X_MAX_SWR_PORTS];
-	const struct wcd938x_sdw_ch_info *ch_info;
+	const struct wcd_sdw_ch_info *ch_info;
 	bool port_enable[WCD938X_MAX_SWR_CH_IDS];
 	int active_ports;
 	bool is_tx;
diff --git a/sound/soc/codecs/wcd939x-sdw.c b/sound/soc/codecs/wcd939x-sdw.c
index 477d6cf27d32..97a829e3ce4f 100644
--- a/sound/soc/codecs/wcd939x-sdw.c
+++ b/sound/soc/codecs/wcd939x-sdw.c
@@ -20,10 +20,11 @@
 #include <sound/soc.h>
 #include <sound/soc-dapm.h>
 #include "wcd939x.h"
+#include "wcd-common.h"
 
 #define SWRS_SCP_HOST_CLK_DIV2_CTL_BANK(m) (0xE0 + 0x10 * (m))
 
-static const struct wcd939x_sdw_ch_info wcd939x_sdw_rx_ch_info[] = {
+static const struct wcd_sdw_ch_info wcd939x_sdw_rx_ch_info[] = {
 	WCD_SDW_CH(WCD939X_HPH_L, WCD939X_HPH_PORT, BIT(0)),
 	WCD_SDW_CH(WCD939X_HPH_R, WCD939X_HPH_PORT, BIT(1)),
 	WCD_SDW_CH(WCD939X_CLSH, WCD939X_CLSH_PORT, BIT(0)),
@@ -36,7 +37,7 @@ static const struct wcd939x_sdw_ch_info wcd939x_sdw_rx_ch_info[] = {
 	WCD_SDW_CH(WCD939X_HIFI_PCM_R, WCD939X_HIFI_PCM_PORT, BIT(1)),
 };
 
-static const struct wcd939x_sdw_ch_info wcd939x_sdw_tx_ch_info[] = {
+static const struct wcd_sdw_ch_info wcd939x_sdw_tx_ch_info[] = {
 	WCD_SDW_CH(WCD939X_ADC1, WCD939X_ADC_1_4_PORT, BIT(0)),
 	WCD_SDW_CH(WCD939X_ADC2, WCD939X_ADC_1_4_PORT, BIT(1)),
 	WCD_SDW_CH(WCD939X_ADC3, WCD939X_ADC_1_4_PORT, BIT(2)),
diff --git a/sound/soc/codecs/wcd939x.c b/sound/soc/codecs/wcd939x.c
index 59c920c50c00..a414cd99b946 100644
--- a/sound/soc/codecs/wcd939x.c
+++ b/sound/soc/codecs/wcd939x.c
@@ -413,7 +413,7 @@ static int wcd939x_io_init(struct snd_soc_component *component)
 	return 0;
 }
 
-static int wcd939x_sdw_connect_port(const struct wcd939x_sdw_ch_info *ch_info,
+static int wcd939x_sdw_connect_port(const struct wcd_sdw_ch_info *ch_info,
 				    struct sdw_port_config *port_config,
 				    u8 enable)
 {
diff --git a/sound/soc/codecs/wcd939x.h b/sound/soc/codecs/wcd939x.h
index e70445b1a4bc..ca6353222ea0 100644
--- a/sound/soc/codecs/wcd939x.h
+++ b/sound/soc/codecs/wcd939x.h
@@ -844,17 +844,6 @@
 
 #define WCD939X_MAX_SWR_CH_IDS		(15)
 
-struct wcd939x_sdw_ch_info {
-	int port_num;
-	unsigned int ch_mask;
-};
-
-#define WCD_SDW_CH(id, pn, cmask)	\
-	[id] = {			\
-		.port_num = pn,		\
-		.ch_mask = cmask,	\
-	}
-
 enum wcd939x_tx_sdw_ports {
 	WCD939X_ADC_1_4_PORT = 1,
 	WCD939X_ADC_DMIC_1_2_PORT,
@@ -909,7 +898,7 @@ struct wcd939x_sdw_priv {
 	struct sdw_stream_config sconfig;
 	struct sdw_stream_runtime *sruntime;
 	struct sdw_port_config port_config[WCD939X_MAX_SWR_PORTS];
-	const struct wcd939x_sdw_ch_info *ch_info;
+	const struct wcd_sdw_ch_info *ch_info;
 	bool port_enable[WCD939X_MAX_SWR_CH_IDS];
 	int active_ports;
 	bool is_tx;
-- 
2.50.0

Re: [PATCH v3 07/12] ASoC: codecs: wcd-common: move WCD_SDW_CH to common

[kernel test robot]

Hi Srinivas,

kernel test robot noticed the following build errors:

[auto build test ERROR on broonie-sound/for-next]
[also build test ERROR on linus/master v6.17-rc4 next-20250905]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]

url:    https://github.com/intel-lab-lkp/linux/commits/Srinivas-Kandagatla/ASoC-codecs-wcd937x-set-the-comp-soundwire-port-correctly/20250905-234841
base:   https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git for-next
patch link:    https://lore.kernel.org/r/20250905154430.12268-8-srinivas.kandagatla%40oss.qualcomm.com
patch subject: [PATCH v3 07/12] ASoC: codecs: wcd-common: move WCD_SDW_CH to common
config: x86_64-buildonly-randconfig-001-20250907 (https://download.01.org/0day-ci/archive/20250907/202509070539.WhfiRSpY-lkp@intel.com/config)
compiler: gcc-13 (Debian 13.3.0-16) 13.3.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250907/202509070539.WhfiRSpY-lkp@intel.com/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202509070539.WhfiRSpY-lkp@intel.com/

All errors (new ones prefixed by >>):

   In file included from sound/soc/codecs/wcd937x.h:10,
                    from sound/soc/codecs/wcd937x.c:26:
>> sound/soc/codecs/wcd-common.h:17:8: error: redefinition of 'struct wcd_sdw_ch_info'
      17 | struct wcd_sdw_ch_info {
         |        ^~~~~~~~~~~~~~~
   In file included from sound/soc/codecs/wcd937x.c:24:
   sound/soc/codecs/wcd-common.h:17:8: note: originally defined here
      17 | struct wcd_sdw_ch_info {
         |        ^~~~~~~~~~~~~~~
>> sound/soc/codecs/wcd-common.h:28:8: error: redefinition of 'struct wcd_common'
      28 | struct wcd_common {
         |        ^~~~~~~~~~
   sound/soc/codecs/wcd-common.h:28:8: note: originally defined here
      28 | struct wcd_common {
         |        ^~~~~~~~~~
>> sound/soc/codecs/wcd-common.h:36:5: error: conflicting types for 'wcd_dt_parse_micbias_info'; have 'int(struct wcd_common *)'
      36 | int wcd_dt_parse_micbias_info(struct wcd_common *common);
         |     ^~~~~~~~~~~~~~~~~~~~~~~~~
   sound/soc/codecs/wcd-common.h:36:5: note: previous declaration of 'wcd_dt_parse_micbias_info' with type 'int(struct wcd_common *)'
      36 | int wcd_dt_parse_micbias_info(struct wcd_common *common);
         |     ^~~~~~~~~~~~~~~~~~~~~~~~~
   sound/soc/codecs/wcd937x.c: In function 'wcd937x_connect_port':
>> sound/soc/codecs/wcd937x.c:1186:53: error: initialization of 'const struct wcd937x_sdw_ch_info *' from incompatible pointer type 'struct wcd_sdw_ch_info *' [-Werror=incompatible-pointer-types]
    1186 |         const struct wcd937x_sdw_ch_info *ch_info = &wcd->ch_info[ch_id];
         |                                                     ^
>> sound/soc/codecs/wcd937x.c:1187:30: error: invalid use of undefined type 'const struct wcd937x_sdw_ch_info'
    1187 |         u8 port_num = ch_info->port_num;
         |                              ^~
   sound/soc/codecs/wcd937x.c:1188:29: error: invalid use of undefined type 'const struct wcd937x_sdw_ch_info'
    1188 |         u8 ch_mask = ch_info->ch_mask;
         |                             ^~
   sound/soc/codecs/wcd937x.c:1195:31: error: invalid use of undefined type 'const struct wcd937x_sdw_ch_info'
    1195 |         mstr_ch_mask = ch_info->master_ch_mask;
         |                               ^~
   sound/soc/codecs/wcd937x.c: In function 'wcd937x_mbhc_micb_ctrl_threshold_mic':
   sound/soc/codecs/wcd937x.c:1522:20: error: 'struct wcd937x_priv' has no member named 'micb2_mv'
    1522 |         if (wcd937x->micb2_mv >= WCD_MBHC_THR_HS_MICB_MV)
         |                    ^~
   sound/soc/codecs/wcd937x.c:1525:61: error: 'struct wcd937x_priv' has no member named 'micb2_mv'
    1525 |         micb_mv = req_en ? WCD_MBHC_THR_HS_MICB_MV : wcd937x->micb2_mv;
         |                                                             ^~
   sound/soc/codecs/wcd937x.c: In function 'wcd937x_set_micbias_data':
   sound/soc/codecs/wcd937x.c:2432:34: error: 'struct wcd937x_priv' has no member named 'commmon'; did you mean 'common'?
    2432 |                         wcd937x->commmon.micb_vout[0]);
         |                                  ^~~~~~~
         |                                  common
   sound/soc/codecs/wcd937x.c:2434:34: error: 'struct wcd937x_priv' has no member named 'commmon'; did you mean 'common'?
    2434 |                         wcd937x->commmon.micb_vout[1]);
         |                                  ^~~~~~~
         |                                  common
   sound/soc/codecs/wcd937x.c:2436:34: error: 'struct wcd937x_priv' has no member named 'commmon'; did you mean 'common'?
    2436 |                         wcd937x->commmon.micb_vout[2]);
         |                                  ^~~~~~~
         |                                  common
   sound/soc/codecs/wcd937x.c: In function 'wcd937x_probe':
   sound/soc/codecs/wcd937x.c:2897:41: error: passing argument 1 of 'wcd_dt_parse_micbias_info' from incompatible pointer type [-Werror=incompatible-pointer-types]
    2897 |         ret = wcd_dt_parse_micbias_info(dev, &wcd937x->common);
         |                                         ^~~
         |                                         |
         |                                         struct device *
   sound/soc/codecs/wcd-common.h:36:50: note: expected 'struct wcd_common *' but argument is of type 'struct device *'
      36 | int wcd_dt_parse_micbias_info(struct wcd_common *common);
         |                               ~~~~~~~~~~~~~~~~~~~^~~~~~
   sound/soc/codecs/wcd937x.c:2897:15: error: too many arguments to function 'wcd_dt_parse_micbias_info'
    2897 |         ret = wcd_dt_parse_micbias_info(dev, &wcd937x->common);
         |               ^~~~~~~~~~~~~~~~~~~~~~~~~
   sound/soc/codecs/wcd-common.h:36:5: note: declared here
      36 | int wcd_dt_parse_micbias_info(struct wcd_common *common);
         |     ^~~~~~~~~~~~~~~~~~~~~~~~~
   sound/soc/codecs/wcd937x.c:2905:31: error: 'struct wcd937x_priv' has no member named 'micb2_mv'
    2905 |         cfg->micb_mv = wcd937x->micb2_mv;
         |                               ^~
   cc1: some warnings being treated as errors
--
   sound/soc/codecs/wcd937x-sdw.c: In function 'wcd9370_probe':
>> sound/soc/codecs/wcd937x-sdw.c:1075:40: error: 'struct wcd_sdw_ch_info' has no member named 'master_ch_mask'
    1075 |                         wcd->ch_info[i].master_ch_mask = WCD937X_SWRM_CH_MASK(master_ch_mask[i]);
         |                                        ^
   sound/soc/codecs/wcd937x-sdw.c:1092:40: error: 'struct wcd_sdw_ch_info' has no member named 'master_ch_mask'
    1092 |                         wcd->ch_info[i].master_ch_mask = WCD937X_SWRM_CH_MASK(master_ch_mask[i]);
         |                                        ^


vim +17 sound/soc/codecs/wcd-common.h

    16	
  > 17	struct wcd_sdw_ch_info {
    18		int port_num;
    19		unsigned int ch_mask;
    20	};
    21	
    22	#define WCD_SDW_CH(id, pn, cmask)	\
    23		[id] = {			\
    24			.port_num = pn,		\
    25			.ch_mask = cmask,	\
    26		}
    27	
  > 28	struct wcd_common {
    29		struct device *dev;
    30		int max_bias;
    31		u32 micb_mv[WCD_MAX_MICBIAS];
    32		u32 micb_vout[WCD_MAX_MICBIAS];
    33	};
    34	
    35	int wcd_get_micb_vout_ctl_val(struct device *dev, u32 micb_mv);
  > 36	int wcd_dt_parse_micbias_info(struct wcd_common *common);
    37	

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki

[PATCH v3 08/12] ASoC: codecs: wcd-common: move component ops to common

[Srinivas Kandagatla]

component_ops for wcd97x, wcd938x, wcd939x soundwire codecs are exactly
identlical, move them to common driver to remove this duplicate code.

Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@oss.qualcomm.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
---
 sound/soc/codecs/wcd-common.c  | 27 +++++++++++++++++++++++++++
 sound/soc/codecs/wcd-common.h  |  1 +
 sound/soc/codecs/wcd937x-sdw.c | 29 ++---------------------------
 sound/soc/codecs/wcd938x-sdw.c | 20 ++------------------
 sound/soc/codecs/wcd939x-sdw.c | 29 ++---------------------------
 5 files changed, 34 insertions(+), 72 deletions(-)

diff --git a/sound/soc/codecs/wcd-common.c b/sound/soc/codecs/wcd-common.c
index 25c0a48ff858..585d3e036900 100644
--- a/sound/soc/codecs/wcd-common.c
+++ b/sound/soc/codecs/wcd-common.c
@@ -7,6 +7,8 @@
 #include <linux/device.h>
 #include <linux/of.h>
 #include <linux/printk.h>
+#include <linux/component.h>
+#include <linux/pm_runtime.h>
 
 #include "wcd-common.h"
 
@@ -66,5 +68,30 @@ int wcd_dt_parse_micbias_info(struct wcd_common *common)
 	return 0;
 }
 EXPORT_SYMBOL_GPL(wcd_dt_parse_micbias_info);
+
+static int wcd_sdw_component_bind(struct device *dev, struct device *master, void *data)
+{
+	pm_runtime_set_autosuspend_delay(dev, 3000);
+	pm_runtime_use_autosuspend(dev);
+	pm_runtime_mark_last_busy(dev);
+	pm_runtime_set_active(dev);
+	pm_runtime_enable(dev);
+
+	return 0;
+}
+
+static void wcd_sdw_component_unbind(struct device *dev, struct device *master, void *data)
+{
+	pm_runtime_disable(dev);
+	pm_runtime_set_suspended(dev);
+	pm_runtime_dont_use_autosuspend(dev);
+}
+
+const struct component_ops wcd_sdw_component_ops = {
+	.bind = wcd_sdw_component_bind,
+	.unbind = wcd_sdw_component_unbind,
+};
+EXPORT_SYMBOL_GPL(wcd_sdw_component_ops);
+
 MODULE_DESCRIPTION("Common Qualcomm WCD Codec helpers driver");
 MODULE_LICENSE("GPL");
diff --git a/sound/soc/codecs/wcd-common.h b/sound/soc/codecs/wcd-common.h
index ca602718c9ba..85e5818b9b0c 100644
--- a/sound/soc/codecs/wcd-common.h
+++ b/sound/soc/codecs/wcd-common.h
@@ -32,6 +32,7 @@ struct wcd_common {
 	u32 micb_vout[WCD_MAX_MICBIAS];
 };
 
+extern const struct component_ops wcd_sdw_component_ops;
 int wcd_get_micb_vout_ctl_val(struct device *dev, u32 micb_mv);
 int wcd_dt_parse_micbias_info(struct wcd_common *common);
 
diff --git a/sound/soc/codecs/wcd937x-sdw.c b/sound/soc/codecs/wcd937x-sdw.c
index 8f2819163527..59c353cafd31 100644
--- a/sound/soc/codecs/wcd937x-sdw.c
+++ b/sound/soc/codecs/wcd937x-sdw.c
@@ -983,31 +983,6 @@ static const struct sdw_slave_ops wcd9370_slave_ops = {
 	.interrupt_callback = wcd9370_interrupt_callback,
 };
 
-static int wcd937x_sdw_component_bind(struct device *dev,
-				      struct device *master, void *data)
-{
-	pm_runtime_set_autosuspend_delay(dev, 3000);
-	pm_runtime_use_autosuspend(dev);
-	pm_runtime_mark_last_busy(dev);
-	pm_runtime_set_active(dev);
-	pm_runtime_enable(dev);
-
-	return 0;
-}
-
-static void wcd937x_sdw_component_unbind(struct device *dev,
-					 struct device *master, void *data)
-{
-	pm_runtime_disable(dev);
-	pm_runtime_set_suspended(dev);
-	pm_runtime_dont_use_autosuspend(dev);
-}
-
-static const struct component_ops wcd937x_sdw_component_ops = {
-	.bind = wcd937x_sdw_component_bind,
-	.unbind = wcd937x_sdw_component_unbind,
-};
-
 static int wcd9370_probe(struct sdw_slave *pdev,
 			 const struct sdw_device_id *id)
 {
@@ -1093,7 +1068,7 @@ static int wcd9370_probe(struct sdw_slave *pdev,
 	}
 
 
-	ret = component_add(dev, &wcd937x_sdw_component_ops);
+	ret = component_add(dev, &wcd_sdw_component_ops);
 	if (ret)
 		return ret;
 
@@ -1107,7 +1082,7 @@ static int wcd9370_remove(struct sdw_slave *pdev)
 {
 	struct device *dev = &pdev->dev;
 
-	component_del(dev, &wcd937x_sdw_component_ops);
+	component_del(dev, &wcd_sdw_component_ops);
 
 	return 0;
 }
diff --git a/sound/soc/codecs/wcd938x-sdw.c b/sound/soc/codecs/wcd938x-sdw.c
index 1dc13b6fabfa..92714aef09d5 100644
--- a/sound/soc/codecs/wcd938x-sdw.c
+++ b/sound/soc/codecs/wcd938x-sdw.c
@@ -1182,22 +1182,6 @@ static const struct sdw_slave_ops wcd9380_slave_ops = {
 	.bus_config = wcd9380_bus_config,
 };
 
-static int wcd938x_sdw_component_bind(struct device *dev,
-				      struct device *master, void *data)
-{
-	return 0;
-}
-
-static void wcd938x_sdw_component_unbind(struct device *dev,
-					 struct device *master, void *data)
-{
-}
-
-static const struct component_ops wcd938x_sdw_component_ops = {
-	.bind   = wcd938x_sdw_component_bind,
-	.unbind = wcd938x_sdw_component_unbind,
-};
-
 static int wcd9380_probe(struct sdw_slave *pdev,
 			 const struct sdw_device_id *id)
 {
@@ -1262,7 +1246,7 @@ static int wcd9380_probe(struct sdw_slave *pdev,
 	pm_runtime_set_active(dev);
 	pm_runtime_enable(dev);
 
-	ret = component_add(dev, &wcd938x_sdw_component_ops);
+	ret = component_add(dev, &wcd_sdw_component_ops);
 	if (ret)
 		goto err_disable_rpm;
 
@@ -1280,7 +1264,7 @@ static int wcd9380_remove(struct sdw_slave *pdev)
 {
 	struct device *dev = &pdev->dev;
 
-	component_del(dev, &wcd938x_sdw_component_ops);
+	component_del(dev, &wcd_sdw_component_ops);
 
 	pm_runtime_disable(dev);
 	pm_runtime_set_suspended(dev);
diff --git a/sound/soc/codecs/wcd939x-sdw.c b/sound/soc/codecs/wcd939x-sdw.c
index 97a829e3ce4f..6aecad2a28aa 100644
--- a/sound/soc/codecs/wcd939x-sdw.c
+++ b/sound/soc/codecs/wcd939x-sdw.c
@@ -1378,31 +1378,6 @@ static const struct sdw_slave_ops wcd9390_slave_ops = {
 	.bus_config = wcd9390_bus_config,
 };
 
-static int wcd939x_sdw_component_bind(struct device *dev, struct device *master,
-				      void *data)
-{
-	pm_runtime_set_autosuspend_delay(dev, 3000);
-	pm_runtime_use_autosuspend(dev);
-	pm_runtime_mark_last_busy(dev);
-	pm_runtime_set_active(dev);
-	pm_runtime_enable(dev);
-
-	return 0;
-}
-
-static void wcd939x_sdw_component_unbind(struct device *dev,
-					 struct device *master, void *data)
-{
-	pm_runtime_disable(dev);
-	pm_runtime_set_suspended(dev);
-	pm_runtime_dont_use_autosuspend(dev);
-}
-
-static const struct component_ops wcd939x_sdw_component_ops = {
-	.bind = wcd939x_sdw_component_bind,
-	.unbind = wcd939x_sdw_component_unbind,
-};
-
 static int wcd9390_probe(struct sdw_slave *pdev, const struct sdw_device_id *id)
 {
 	struct device *dev = &pdev->dev;
@@ -1466,7 +1441,7 @@ static int wcd9390_probe(struct sdw_slave *pdev, const struct sdw_device_id *id)
 		regcache_cache_only(wcd->regmap, true);
 	}
 
-	ret = component_add(dev, &wcd939x_sdw_component_ops);
+	ret = component_add(dev, &wcd_sdw_component_ops);
 	if (ret)
 		return ret;
 
@@ -1481,7 +1456,7 @@ static int wcd9390_remove(struct sdw_slave *pdev)
 	struct device *dev = &pdev->dev;
 	struct wcd939x_sdw_priv *wcd = dev_get_drvdata(dev);
 
-	component_del(dev, &wcd939x_sdw_component_ops);
+	component_del(dev, &wcd_sdw_component_ops);
 
 	if (wcd->regmap)
 		regmap_exit(wcd->regmap);
-- 
2.50.0

[PATCH v3 09/12] ASoC: codecs: wcd939x: get regmap directly

[Srinivas Kandagatla]

for some reason we ended up with a boiler plate for dev_get_regmap in
wcd939x codec and started exporting a symbol for this. Remove this
redundant wrapper and direclty get regmap.

Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@oss.qualcomm.com>
---
 sound/soc/codecs/wcd939x-sdw.c | 9 ---------
 sound/soc/codecs/wcd939x.c     | 6 +++---
 sound/soc/codecs/wcd939x.h     | 6 ------
 3 files changed, 3 insertions(+), 18 deletions(-)

diff --git a/sound/soc/codecs/wcd939x-sdw.c b/sound/soc/codecs/wcd939x-sdw.c
index 6aecad2a28aa..38da706d80be 100644
--- a/sound/soc/codecs/wcd939x-sdw.c
+++ b/sound/soc/codecs/wcd939x-sdw.c
@@ -187,15 +187,6 @@ int wcd939x_sdw_set_sdw_stream(struct wcd939x_sdw_priv *wcd,
 }
 EXPORT_SYMBOL_GPL(wcd939x_sdw_set_sdw_stream);
 
-struct regmap *wcd939x_swr_get_regmap(struct wcd939x_sdw_priv *wcd)
-{
-	if (wcd->regmap)
-		return wcd->regmap;
-
-	return ERR_PTR(-EINVAL);
-}
-EXPORT_SYMBOL_GPL(wcd939x_swr_get_regmap);
-
 static int wcd9390_update_status(struct sdw_slave *slave,
 				 enum sdw_slave_status status)
 {
diff --git a/sound/soc/codecs/wcd939x.c b/sound/soc/codecs/wcd939x.c
index a414cd99b946..e74e6f013131 100644
--- a/sound/soc/codecs/wcd939x.c
+++ b/sound/soc/codecs/wcd939x.c
@@ -3374,10 +3374,10 @@ static int wcd939x_bind(struct device *dev)
 	}
 
 	/* Get regmap from TX SoundWire device */
-	wcd939x->regmap = wcd939x_swr_get_regmap(wcd939x->sdw_priv[AIF1_CAP]);
-	if (IS_ERR(wcd939x->regmap)) {
+	wcd939x->regmap = wcd939x->sdw_priv[AIF1_CAP]->regmap;
+	if (!wcd939x->regmap) {
 		dev_err(dev, "could not get TX device regmap\n");
-		ret = PTR_ERR(wcd939x->regmap);
+		ret = -ENODEV;
 		goto err_remove_rx_link;
 	}
 
diff --git a/sound/soc/codecs/wcd939x.h b/sound/soc/codecs/wcd939x.h
index ca6353222ea0..6bd2366587a8 100644
--- a/sound/soc/codecs/wcd939x.h
+++ b/sound/soc/codecs/wcd939x.h
@@ -918,8 +918,6 @@ int wcd939x_sdw_hw_params(struct wcd939x_sdw_priv *wcd,
 			  struct snd_pcm_substream *substream,
 			  struct snd_pcm_hw_params *params,
 			  struct snd_soc_dai *dai);
-
-struct regmap *wcd939x_swr_get_regmap(struct wcd939x_sdw_priv *wcd);
 #else
 
 static inline int wcd939x_sdw_free(struct wcd939x_sdw_priv *wcd,
@@ -944,10 +942,6 @@ static inline int wcd939x_sdw_hw_params(struct wcd939x_sdw_priv *wcd,
 	return -EOPNOTSUPP;
 }
 
-struct regmap *wcd939x_swr_get_regmap(struct wcd939x_sdw_priv *wcd)
-{
-	return PTR_ERR(-EINVAL);
-}
 #endif /* CONFIG_SND_SOC_WCD939X_SDW */
 
 #endif /* __WCD939X_H__ */
-- 
2.50.0

Re: [PATCH v3 09/12] ASoC: codecs: wcd939x: get regmap directly

[Dmitry Baryshkov]

On Fri, Sep 05, 2025 at 04:44:27PM +0100, Srinivas Kandagatla wrote:
> for some reason we ended up with a boiler plate for dev_get_regmap in
> wcd939x codec and started exporting a symbol for this. Remove this
> redundant wrapper and direclty get regmap.
> 
> Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@oss.qualcomm.com>
> ---
>  sound/soc/codecs/wcd939x-sdw.c | 9 ---------
>  sound/soc/codecs/wcd939x.c     | 6 +++---
>  sound/soc/codecs/wcd939x.h     | 6 ------
>  3 files changed, 3 insertions(+), 18 deletions(-)
> 

Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>

> 

-- 
With best wishes
Dmitry

[PATCH v3 10/12] ASoC: codecs: wcd-common: move status_update callback to common

[Srinivas Kandagatla]

Soundwire update_status, bus_config and interrupt callbacks for wcd937x,
wcd938x, wcd939x soundwire codecs are exactly identlical, move them to
common driver to remove this duplicate code.

Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@oss.qualcomm.com>
---
 sound/soc/codecs/wcd-common.c  | 46 ++++++++++++++++++++++++++++++++++
 sound/soc/codecs/wcd-common.h  |  5 ++++
 sound/soc/codecs/wcd937x-sdw.c | 28 +++------------------
 sound/soc/codecs/wcd938x-sdw.c | 41 +++---------------------------
 sound/soc/codecs/wcd939x-sdw.c | 42 +++----------------------------
 5 files changed, 62 insertions(+), 100 deletions(-)

diff --git a/sound/soc/codecs/wcd-common.c b/sound/soc/codecs/wcd-common.c
index 585d3e036900..6aaa6e2c955a 100644
--- a/sound/soc/codecs/wcd-common.c
+++ b/sound/soc/codecs/wcd-common.c
@@ -9,6 +9,9 @@
 #include <linux/printk.h>
 #include <linux/component.h>
 #include <linux/pm_runtime.h>
+#include <linux/soundwire/sdw.h>
+#include <linux/soundwire/sdw_type.h>
+#include <linux/regmap.h>
 
 #include "wcd-common.h"
 
@@ -16,6 +19,8 @@
 #define WCD_DEF_MICBIAS_MV	1800
 #define WCD_MAX_MICBIAS_MV	2850
 
+#define SWRS_SCP_HOST_CLK_DIV2_CTL_BANK(m) (0xE0 + 0x10 * (m))
+
 int wcd_get_micb_vout_ctl_val(struct device *dev, u32 micb_mv)
 {
 	/* min micbias voltage is 1V and maximum is 2.85V */
@@ -93,5 +98,46 @@ const struct component_ops wcd_sdw_component_ops = {
 };
 EXPORT_SYMBOL_GPL(wcd_sdw_component_ops);
 
+int wcd_update_status(struct sdw_slave *slave, enum sdw_slave_status status)
+{
+	struct regmap *regmap = dev_get_regmap(&slave->dev, NULL);
+
+	if (regmap && status == SDW_SLAVE_ATTACHED) {
+		/* Write out any cached changes that happened between probe and attach */
+		regcache_cache_only(regmap, false);
+		return regcache_sync(regmap);
+	}
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(wcd_update_status);
+
+int wcd_bus_config(struct sdw_slave *slave, struct sdw_bus_params *params)
+{
+	sdw_write(slave, SWRS_SCP_HOST_CLK_DIV2_CTL_BANK(params->next_bank), 0x01);
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(wcd_bus_config);
+
+int wcd_interrupt_callback(struct sdw_slave *slave, struct irq_domain *slave_irq,
+		unsigned int wcd_intr_status0, unsigned int wcd_intr_status1,
+		unsigned int wcd_intr_status2)
+{
+	struct regmap *regmap = dev_get_regmap(&slave->dev, NULL);
+	u32 sts1, sts2, sts3;
+
+	do {
+		handle_nested_irq(irq_find_mapping(slave_irq, 0));
+		regmap_read(regmap, wcd_intr_status0, &sts1);
+		regmap_read(regmap, wcd_intr_status1, &sts2);
+		regmap_read(regmap, wcd_intr_status2, &sts3);
+
+	} while (sts1 || sts2 || sts3);
+
+	return IRQ_HANDLED;
+}
+EXPORT_SYMBOL_GPL(wcd_interrupt_callback);
+
 MODULE_DESCRIPTION("Common Qualcomm WCD Codec helpers driver");
 MODULE_LICENSE("GPL");
diff --git a/sound/soc/codecs/wcd-common.h b/sound/soc/codecs/wcd-common.h
index 85e5818b9b0c..a844908de433 100644
--- a/sound/soc/codecs/wcd-common.h
+++ b/sound/soc/codecs/wcd-common.h
@@ -35,5 +35,10 @@ struct wcd_common {
 extern const struct component_ops wcd_sdw_component_ops;
 int wcd_get_micb_vout_ctl_val(struct device *dev, u32 micb_mv);
 int wcd_dt_parse_micbias_info(struct wcd_common *common);
+int wcd_update_status(struct sdw_slave *slave, enum sdw_slave_status status);
+int wcd_bus_config(struct sdw_slave *slave, struct sdw_bus_params *params);
+int wcd_interrupt_callback(struct sdw_slave *slave, struct irq_domain *slave_irq,
+		unsigned int wcd_intr_status0, unsigned int wcd_intr_status1,
+		unsigned int wcd_intr_status2);
 
 #endif /* __WCD_COMMON_H___  */
diff --git a/sound/soc/codecs/wcd937x-sdw.c b/sound/soc/codecs/wcd937x-sdw.c
index 59c353cafd31..1878d67e3fa1 100644
--- a/sound/soc/codecs/wcd937x-sdw.c
+++ b/sound/soc/codecs/wcd937x-sdw.c
@@ -112,19 +112,6 @@ int wcd937x_sdw_hw_params(struct wcd937x_sdw_priv *wcd,
 }
 EXPORT_SYMBOL_GPL(wcd937x_sdw_hw_params);
 
-static int wcd9370_update_status(struct sdw_slave *slave, enum sdw_slave_status status)
-{
-	struct wcd937x_sdw_priv *wcd = dev_get_drvdata(&slave->dev);
-
-	if (wcd->regmap && status == SDW_SLAVE_ATTACHED) {
-		/* Write out any cached changes that happened between probe and attach */
-		regcache_cache_only(wcd->regmap, false);
-		return regcache_sync(wcd->regmap);
-	}
-
-	return 0;
-}
-
 /*
  * Handle Soundwire out-of-band interrupt event by triggering
  * the first irq of the slave_irq irq domain, which then will
@@ -135,18 +122,9 @@ static int wcd9370_interrupt_callback(struct sdw_slave *slave,
 				      struct sdw_slave_intr_status *status)
 {
 	struct wcd937x_sdw_priv *wcd = dev_get_drvdata(&slave->dev);
-	struct irq_domain *slave_irq = wcd->slave_irq;
-	u32 sts1, sts2, sts3;
-
-	do {
-		handle_nested_irq(irq_find_mapping(slave_irq, 0));
-		regmap_read(wcd->regmap, WCD937X_DIGITAL_INTR_STATUS_0, &sts1);
-		regmap_read(wcd->regmap, WCD937X_DIGITAL_INTR_STATUS_1, &sts2);
-		regmap_read(wcd->regmap, WCD937X_DIGITAL_INTR_STATUS_2, &sts3);
-
-	} while (sts1 || sts2 || sts3);
 
-	return IRQ_HANDLED;
+	return wcd_interrupt_callback(slave, wcd->slave_irq, WCD937X_DIGITAL_INTR_STATUS_0,
+				WCD937X_DIGITAL_INTR_STATUS_1, WCD937X_DIGITAL_INTR_STATUS_2);
 }
 
 static const struct reg_default wcd937x_defaults[] = {
@@ -979,7 +957,7 @@ static const struct regmap_config wcd937x_regmap_config = {
 };
 
 static const struct sdw_slave_ops wcd9370_slave_ops = {
-	.update_status = wcd9370_update_status,
+	.update_status = wcd_update_status,
 	.interrupt_callback = wcd9370_interrupt_callback,
 };
 
diff --git a/sound/soc/codecs/wcd938x-sdw.c b/sound/soc/codecs/wcd938x-sdw.c
index 92714aef09d5..add907cb2706 100644
--- a/sound/soc/codecs/wcd938x-sdw.c
+++ b/sound/soc/codecs/wcd938x-sdw.c
@@ -20,8 +20,6 @@
 #include "wcd938x.h"
 #include "wcd-common.h"
 
-#define SWRS_SCP_HOST_CLK_DIV2_CTL_BANK(m) (0xE0 + 0x10 * (m))
-
 static const struct wcd_sdw_ch_info wcd938x_sdw_rx_ch_info[] = {
 	WCD_SDW_CH(WCD938X_HPH_L, WCD938X_HPH_PORT, BIT(0)),
 	WCD_SDW_CH(WCD938X_HPH_R, WCD938X_HPH_PORT, BIT(1)),
@@ -142,44 +140,13 @@ int wcd938x_sdw_set_sdw_stream(struct wcd938x_sdw_priv *wcd,
 }
 EXPORT_SYMBOL_GPL(wcd938x_sdw_set_sdw_stream);
 
-static int wcd9380_update_status(struct sdw_slave *slave,
-				 enum sdw_slave_status status)
-{
-	struct wcd938x_sdw_priv *wcd = dev_get_drvdata(&slave->dev);
-
-	if (wcd->regmap && (status == SDW_SLAVE_ATTACHED)) {
-		/* Write out any cached changes that happened between probe and attach */
-		regcache_cache_only(wcd->regmap, false);
-		return regcache_sync(wcd->regmap);
-	}
-
-	return 0;
-}
-
-static int wcd9380_bus_config(struct sdw_slave *slave,
-			      struct sdw_bus_params *params)
-{
-	sdw_write(slave, SWRS_SCP_HOST_CLK_DIV2_CTL_BANK(params->next_bank),  0x01);
-
-	return 0;
-}
-
 static int wcd9380_interrupt_callback(struct sdw_slave *slave,
 				      struct sdw_slave_intr_status *status)
 {
 	struct wcd938x_sdw_priv *wcd = dev_get_drvdata(&slave->dev);
-	struct irq_domain *slave_irq = wcd->slave_irq;
-	u32 sts1, sts2, sts3;
-
-	do {
-		handle_nested_irq(irq_find_mapping(slave_irq, 0));
-		regmap_read(wcd->regmap, WCD938X_DIGITAL_INTR_STATUS_0, &sts1);
-		regmap_read(wcd->regmap, WCD938X_DIGITAL_INTR_STATUS_1, &sts2);
-		regmap_read(wcd->regmap, WCD938X_DIGITAL_INTR_STATUS_2, &sts3);
-
-	} while (sts1 || sts2 || sts3);
 
-	return IRQ_HANDLED;
+	return wcd_interrupt_callback(slave, wcd->slave_irq, WCD938X_DIGITAL_INTR_STATUS_0,
+				WCD938X_DIGITAL_INTR_STATUS_1, WCD938X_DIGITAL_INTR_STATUS_2);
 }
 
 static const struct reg_default wcd938x_defaults[] = {
@@ -1177,9 +1144,9 @@ static const struct regmap_config wcd938x_regmap_config = {
 };
 
 static const struct sdw_slave_ops wcd9380_slave_ops = {
-	.update_status = wcd9380_update_status,
+	.update_status = wcd_update_status,
 	.interrupt_callback = wcd9380_interrupt_callback,
-	.bus_config = wcd9380_bus_config,
+	.bus_config = wcd_bus_config,
 };
 
 static int wcd9380_probe(struct sdw_slave *pdev,
diff --git a/sound/soc/codecs/wcd939x-sdw.c b/sound/soc/codecs/wcd939x-sdw.c
index 38da706d80be..d369100a2457 100644
--- a/sound/soc/codecs/wcd939x-sdw.c
+++ b/sound/soc/codecs/wcd939x-sdw.c
@@ -22,8 +22,6 @@
 #include "wcd939x.h"
 #include "wcd-common.h"
 
-#define SWRS_SCP_HOST_CLK_DIV2_CTL_BANK(m) (0xE0 + 0x10 * (m))
-
 static const struct wcd_sdw_ch_info wcd939x_sdw_rx_ch_info[] = {
 	WCD_SDW_CH(WCD939X_HPH_L, WCD939X_HPH_PORT, BIT(0)),
 	WCD_SDW_CH(WCD939X_HPH_R, WCD939X_HPH_PORT, BIT(1)),
@@ -187,29 +185,6 @@ int wcd939x_sdw_set_sdw_stream(struct wcd939x_sdw_priv *wcd,
 }
 EXPORT_SYMBOL_GPL(wcd939x_sdw_set_sdw_stream);
 
-static int wcd9390_update_status(struct sdw_slave *slave,
-				 enum sdw_slave_status status)
-{
-	struct wcd939x_sdw_priv *wcd = dev_get_drvdata(&slave->dev);
-
-	if (wcd->regmap && status == SDW_SLAVE_ATTACHED) {
-		/* Write out any cached changes that happened between probe and attach */
-		regcache_cache_only(wcd->regmap, false);
-		return regcache_sync(wcd->regmap);
-	}
-
-	return 0;
-}
-
-static int wcd9390_bus_config(struct sdw_slave *slave,
-			      struct sdw_bus_params *params)
-{
-	sdw_write(slave, SWRS_SCP_HOST_CLK_DIV2_CTL_BANK(params->next_bank),
-		  0x01);
-
-	return 0;
-}
-
 /*
  * Handle Soundwire out-of-band interrupt event by triggering
  * the first irq of the slave_irq irq domain, which then will
@@ -220,18 +195,9 @@ static int wcd9390_interrupt_callback(struct sdw_slave *slave,
 				      struct sdw_slave_intr_status *status)
 {
 	struct wcd939x_sdw_priv *wcd = dev_get_drvdata(&slave->dev);
-	struct irq_domain *slave_irq = wcd->slave_irq;
-	u32 sts1, sts2, sts3;
-
-	do {
-		handle_nested_irq(irq_find_mapping(slave_irq, 0));
-		regmap_read(wcd->regmap, WCD939X_DIGITAL_INTR_STATUS_0, &sts1);
-		regmap_read(wcd->regmap, WCD939X_DIGITAL_INTR_STATUS_1, &sts2);
-		regmap_read(wcd->regmap, WCD939X_DIGITAL_INTR_STATUS_2, &sts3);
-
-	} while (sts1 || sts2 || sts3);
 
-	return IRQ_HANDLED;
+	return wcd_interrupt_callback(slave, wcd->slave_irq, WCD939X_DIGITAL_INTR_STATUS_0,
+			WCD939X_DIGITAL_INTR_STATUS_1, WCD939X_DIGITAL_INTR_STATUS_2);
 }
 
 static const struct reg_default wcd939x_defaults[] = {
@@ -1364,9 +1330,9 @@ static const struct regmap_config wcd939x_regmap_config = {
 };
 
 static const struct sdw_slave_ops wcd9390_slave_ops = {
-	.update_status = wcd9390_update_status,
+	.update_status = wcd_update_status,
 	.interrupt_callback = wcd9390_interrupt_callback,
-	.bus_config = wcd9390_bus_config,
+	.bus_config = wcd_bus_config,
 };
 
 static int wcd9390_probe(struct sdw_slave *pdev, const struct sdw_device_id *id)
-- 
2.50.0

Re: [PATCH v3 10/12] ASoC: codecs: wcd-common: move status_update callback to common

[Dmitry Baryshkov]

On Fri, Sep 05, 2025 at 04:44:28PM +0100, Srinivas Kandagatla wrote:
> Soundwire update_status, bus_config and interrupt callbacks for wcd937x,
> wcd938x, wcd939x soundwire codecs are exactly identlical, move them to
> common driver to remove this duplicate code.
> 
> Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@oss.qualcomm.com>
> ---
>  sound/soc/codecs/wcd-common.c  | 46 ++++++++++++++++++++++++++++++++++
>  sound/soc/codecs/wcd-common.h  |  5 ++++
>  sound/soc/codecs/wcd937x-sdw.c | 28 +++------------------
>  sound/soc/codecs/wcd938x-sdw.c | 41 +++---------------------------
>  sound/soc/codecs/wcd939x-sdw.c | 42 +++----------------------------
>  5 files changed, 62 insertions(+), 100 deletions(-)
> 

Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>


-- 
With best wishes
Dmitry

[PATCH v3 11/12] ASoC: codecs: wcd938x: get regmap directly

[Srinivas Kandagatla]

Remove usage of dev_get_regmap, as this its more efficient to directly
reference the pointer.

Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@oss.qualcomm.com>
---
 sound/soc/codecs/wcd938x.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sound/soc/codecs/wcd938x.c b/sound/soc/codecs/wcd938x.c
index e495f98972f1..e1a4783b984c 100644
--- a/sound/soc/codecs/wcd938x.c
+++ b/sound/soc/codecs/wcd938x.c
@@ -3389,7 +3389,7 @@ static int wcd938x_bind(struct device *dev)
 		goto err_remove_tx_link;
 	}
 
-	wcd938x->regmap = dev_get_regmap(&wcd938x->tx_sdw_dev->dev, NULL);
+	wcd938x->regmap = wcd938x->sdw_priv[AIF1_CAP]->regmap;
 	if (!wcd938x->regmap) {
 		dev_err(dev, "could not get TX device regmap\n");
 		ret = -EINVAL;
-- 
2.50.0

Re: [PATCH v3 11/12] ASoC: codecs: wcd938x: get regmap directly

[Dmitry Baryshkov]

On Fri, Sep 05, 2025 at 04:44:29PM +0100, Srinivas Kandagatla wrote:
> Remove usage of dev_get_regmap, as this its more efficient to directly
> reference the pointer.
> 
> Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@oss.qualcomm.com>
> ---
>  sound/soc/codecs/wcd938x.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 

Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>


-- 
With best wishes
Dmitry

[PATCH v3 12/12] ASoC: codecs: wcd937x: get regmap directly

[Srinivas Kandagatla]

Remove usage of dev_get_regmap, as this its more efficient to directly
reference the pointer.

Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@oss.qualcomm.com>
---
 sound/soc/codecs/wcd937x.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sound/soc/codecs/wcd937x.c b/sound/soc/codecs/wcd937x.c
index 5c8faff3976d..2064d707ab0a 100644
--- a/sound/soc/codecs/wcd937x.c
+++ b/sound/soc/codecs/wcd937x.c
@@ -2790,7 +2790,7 @@ static int wcd937x_bind(struct device *dev)
 		return -EINVAL;
 	}
 
-	wcd937x->regmap = dev_get_regmap(&wcd937x->tx_sdw_dev->dev, NULL);
+	wcd937x->regmap = wcd937x->sdw_priv[AIF1_CAP]->regmap;
 	if (!wcd937x->regmap) {
 		dev_err(dev, "could not get TX device regmap\n");
 		return -EINVAL;
-- 
2.50.0

Re: [PATCH v3 12/12] ASoC: codecs: wcd937x: get regmap directly

[Dmitry Baryshkov]

On Fri, Sep 05, 2025 at 04:44:30PM +0100, Srinivas Kandagatla wrote:
> Remove usage of dev_get_regmap, as this its more efficient to directly
> reference the pointer.
> 
> Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@oss.qualcomm.com>
> ---
>  sound/soc/codecs/wcd937x.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 

Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>


-- 
With best wishes
Dmitry