[PATCH v3 0/4] ASoC: codecs: Add WSA881x Smart Speaker amplifier support

[PATCH v3 0/4] ASoC: codecs: Add WSA881x Smart Speaker amplifier support

[Srinivas Kandagatla]

Thanks for reviewing v2 patchset, here is v3 with addressing the comments in v2.

This patchset adds support to WSA8810/WSA8815 Class-D Smart Speaker
Amplifier which is SoundWire interfaced.
This also adds support to some missing bits in SoundWire bus layer like
Device Tree support.

This patchset along with DB845c machine driver and WCD934x codec driver
has been tested on SDM845 SoC based DragonBoard DB845c with two
WSA8810 speakers.

Most of the code in this driver is rework of Qualcomm downstream drivers
used in Andriod. Credits to Banajit Goswami and Patrick Lai's Team.

TODO:
	Add thermal sensor support in WSA881x.

Thanks,
srini

Changes since v2:
- Updated compatible string to include LinkID.
- udpdated wsa driver to not register/unregister component in SoundWire
 status callbacks.
- Updated few minor coding style review comments.

Changes since v1 RFC:
- bindings document renamed to slave.txt
- fix error code from dt slave parsing

Srinivas Kandagatla (4):
  dt-bindings: soundwire: add slave bindings
  soundwire: core: add device tree support for slave devices
  dt-bindings: ASoC: Add WSA881x bindings
  ASoC: codecs: add wsa881x amplifier support

 .../bindings/sound/qcom,wsa881x.txt           |   24 +
 .../devicetree/bindings/soundwire/slave.txt   |   51 +
 drivers/soundwire/bus.c                       |    2 +
 drivers/soundwire/bus.h                       |    1 +
 drivers/soundwire/slave.c                     |   44 +
 sound/soc/codecs/Kconfig                      |   10 +
 sound/soc/codecs/Makefile                     |    2 +
 sound/soc/codecs/wsa881x.c                    | 1134 +++++++++++++++++
 8 files changed, 1268 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/sound/qcom,wsa881x.txt
 create mode 100644 Documentation/devicetree/bindings/soundwire/slave.txt
 create mode 100644 sound/soc/codecs/wsa881x.c

-- 
2.21.0

[PATCH v3 1/4] dt-bindings: soundwire: add slave bindings

[Srinivas Kandagatla]

This patch adds bindings for Soundwire Slave devices that includes how
SoundWire enumeration address and Link ID are used to represented in
SoundWire slave device tree nodes.

Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
---
 .../devicetree/bindings/soundwire/slave.txt   | 51 +++++++++++++++++++
 1 file changed, 51 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/soundwire/slave.txt

diff --git a/Documentation/devicetree/bindings/soundwire/slave.txt b/Documentation/devicetree/bindings/soundwire/slave.txt
new file mode 100644
index 000000000000..201f65d2fafa
--- /dev/null
+++ b/Documentation/devicetree/bindings/soundwire/slave.txt
@@ -0,0 +1,51 @@
+SoundWire slave device bindings.
+
+SoundWire is a 2-pin multi-drop interface with data and clock line.
+It facilitates development of low cost, efficient, high performance systems.
+
+SoundWire slave devices:
+Every SoundWire controller node can contain zero or more child nodes
+representing slave devices on the bus. Every SoundWire slave device is
+uniquely determined by the enumeration address containing 5 fields:
+SoundWire Version, Instance ID, Manufacturer ID, Part ID
+and Class ID for a device. Addition to below required properties,
+child nodes can have device specific bindings.
+
+Required properties:
+- compatible:	 "sdw<LinkID><VersionID><InstanceID><MFD><PID><CID>".
+		  Is the textual representation of SoundWire Enumeration
+		  address along with Link ID. compatible string should contain
+		  SoundWire Link ID, SoundWire Version ID, Instance ID,
+		  Manufacturer ID, Part ID and Class ID in order
+		  represented as above and shall be in lower-case hexadecimal
+		  with leading zeroes. Vaild sizes of these fields are
+		  LinkID is 1 nibble,
+		  Version ID is 1 nibble
+		  Instance ID in 1 nibble
+		  MFD in 4 nibbles
+		  PID in 4 nibbles
+		  CID is 2 nibbles
+
+		  Version number '0x1' represents SoundWire 1.0
+		  Version number '0x2' represents SoundWire 1.1
+		  ex: "sdw0110217201000" represents 0 LinkID,
+		  SoundWire 1.0 version slave with Instance ID 1.
+		  More Information on detail of encoding of these fields can be
+		  found in MIPI Alliance DisCo & SoundWire 1.0 Specifications.
+
+SoundWire example for Qualcomm's SoundWire controller:
+
+soundwire@c2d0000 {
+	compatible = "qcom,soundwire-v1.5.0"
+	reg = <0x0c2d0000 0x2000>;
+
+	spkr_left:wsa8810-left{
+		compatible = "sdw0110217201000";
+		...
+	};
+
+	spkr_right:wsa8810-right{
+		compatible = "sdw0120217201000";
+		...
+	};
+};
-- 
2.21.0

Re: [PATCH v3 1/4] dt-bindings: soundwire: add slave bindings

[Vinod Koul]

On 09-08-19, 14:34, Srinivas Kandagatla wrote:
> This patch adds bindings for Soundwire Slave devices that includes how
> SoundWire enumeration address and Link ID are used to represented in
> SoundWire slave device tree nodes.

Rob does this look good to you, I intent to apply the soundwire parts

> Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
> ---
>  .../devicetree/bindings/soundwire/slave.txt   | 51 +++++++++++++++++++
>  1 file changed, 51 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/soundwire/slave.txt
> 
> diff --git a/Documentation/devicetree/bindings/soundwire/slave.txt b/Documentation/devicetree/bindings/soundwire/slave.txt
> new file mode 100644
> index 000000000000..201f65d2fafa
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/soundwire/slave.txt
> @@ -0,0 +1,51 @@
> +SoundWire slave device bindings.
> +
> +SoundWire is a 2-pin multi-drop interface with data and clock line.
> +It facilitates development of low cost, efficient, high performance systems.
> +
> +SoundWire slave devices:
> +Every SoundWire controller node can contain zero or more child nodes
> +representing slave devices on the bus. Every SoundWire slave device is
> +uniquely determined by the enumeration address containing 5 fields:
> +SoundWire Version, Instance ID, Manufacturer ID, Part ID
> +and Class ID for a device. Addition to below required properties,
> +child nodes can have device specific bindings.
> +
> +Required properties:
> +- compatible:	 "sdw<LinkID><VersionID><InstanceID><MFD><PID><CID>".
> +		  Is the textual representation of SoundWire Enumeration
> +		  address along with Link ID. compatible string should contain
> +		  SoundWire Link ID, SoundWire Version ID, Instance ID,
> +		  Manufacturer ID, Part ID and Class ID in order
> +		  represented as above and shall be in lower-case hexadecimal
> +		  with leading zeroes. Vaild sizes of these fields are
> +		  LinkID is 1 nibble,
> +		  Version ID is 1 nibble
> +		  Instance ID in 1 nibble
> +		  MFD in 4 nibbles
> +		  PID in 4 nibbles
> +		  CID is 2 nibbles
> +
> +		  Version number '0x1' represents SoundWire 1.0
> +		  Version number '0x2' represents SoundWire 1.1
> +		  ex: "sdw0110217201000" represents 0 LinkID,
> +		  SoundWire 1.0 version slave with Instance ID 1.
> +		  More Information on detail of encoding of these fields can be
> +		  found in MIPI Alliance DisCo & SoundWire 1.0 Specifications.
> +
> +SoundWire example for Qualcomm's SoundWire controller:
> +
> +soundwire@c2d0000 {
> +	compatible = "qcom,soundwire-v1.5.0"
> +	reg = <0x0c2d0000 0x2000>;
> +
> +	spkr_left:wsa8810-left{
> +		compatible = "sdw0110217201000";
> +		...
> +	};
> +
> +	spkr_right:wsa8810-right{
> +		compatible = "sdw0120217201000";
> +		...
> +	};
> +};
> -- 
> 2.21.0

-- 
~Vinod

Re: [PATCH v3 1/4] dt-bindings: soundwire: add slave bindings

[Rob Herring]

On Fri, Aug 09, 2019 at 02:34:04PM +0100, Srinivas Kandagatla wrote:
> This patch adds bindings for Soundwire Slave devices that includes how
> SoundWire enumeration address and Link ID are used to represented in
> SoundWire slave device tree nodes.
> 
> Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
> ---
>  .../devicetree/bindings/soundwire/slave.txt   | 51 +++++++++++++++++++
>  1 file changed, 51 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/soundwire/slave.txt

Can you convert this to DT schema given it is a common binding.

What does the host controller look like? You need to define the node 
hierarchy. Bus controller schemas should then include the bus schema. 
See spi-controller.yaml.

> 
> diff --git a/Documentation/devicetree/bindings/soundwire/slave.txt b/Documentation/devicetree/bindings/soundwire/slave.txt
> new file mode 100644
> index 000000000000..201f65d2fafa
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/soundwire/slave.txt
> @@ -0,0 +1,51 @@
> +SoundWire slave device bindings.
> +
> +SoundWire is a 2-pin multi-drop interface with data and clock line.
> +It facilitates development of low cost, efficient, high performance systems.
> +
> +SoundWire slave devices:
> +Every SoundWire controller node can contain zero or more child nodes
> +representing slave devices on the bus. Every SoundWire slave device is
> +uniquely determined by the enumeration address containing 5 fields:
> +SoundWire Version, Instance ID, Manufacturer ID, Part ID
> +and Class ID for a device. Addition to below required properties,
> +child nodes can have device specific bindings.
> +
> +Required properties:
> +- compatible:	 "sdw<LinkID><VersionID><InstanceID><MFD><PID><CID>".
> +		  Is the textual representation of SoundWire Enumeration
> +		  address along with Link ID. compatible string should contain
> +		  SoundWire Link ID, SoundWire Version ID, Instance ID,
> +		  Manufacturer ID, Part ID and Class ID in order
> +		  represented as above and shall be in lower-case hexadecimal
> +		  with leading zeroes. Vaild sizes of these fields are
> +		  LinkID is 1 nibble,
> +		  Version ID is 1 nibble
> +		  Instance ID in 1 nibble
> +		  MFD in 4 nibbles
> +		  PID in 4 nibbles
> +		  CID is 2 nibbles
> +
> +		  Version number '0x1' represents SoundWire 1.0
> +		  Version number '0x2' represents SoundWire 1.1

This can all be a regex.

> +		  ex: "sdw0110217201000" represents 0 LinkID,
> +		  SoundWire 1.0 version slave with Instance ID 1.
> +		  More Information on detail of encoding of these fields can be
> +		  found in MIPI Alliance DisCo & SoundWire 1.0 Specifications.
> +
> +SoundWire example for Qualcomm's SoundWire controller:
> +
> +soundwire@c2d0000 {
> +	compatible = "qcom,soundwire-v1.5.0"
> +	reg = <0x0c2d0000 0x2000>;
> +
> +	spkr_left:wsa8810-left{
> +		compatible = "sdw0110217201000";
> +		...
> +	};
> +
> +	spkr_right:wsa8810-right{
> +		compatible = "sdw0120217201000";

The normal way to distinguish instances is with 'reg'. So I think you 
need 'reg' with Instance ID moved there at least. Just guessing, but 
perhaps Link ID, too? And for 2 different classes of device is that 
enough? 

Rob

Re: [PATCH v3 1/4] dt-bindings: soundwire: add slave bindings

[Srinivas Kandagatla]

On 21/08/2019 22:44, Rob Herring wrote:
> On Fri, Aug 09, 2019 at 02:34:04PM +0100, Srinivas Kandagatla wrote:
>> This patch adds bindings for Soundwire Slave devices that includes how
>> SoundWire enumeration address and Link ID are used to represented in
>> SoundWire slave device tree nodes.
>>
>> Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
>> ---
>>   .../devicetree/bindings/soundwire/slave.txt   | 51 +++++++++++++++++++
>>   1 file changed, 51 insertions(+)
>>   create mode 100644 Documentation/devicetree/bindings/soundwire/slave.txt
> 
> Can you convert this to DT schema given it is a common binding.
> 

I will give that a go in next version!

> What does the host controller look like? You need to define the node
> hierarchy. Bus controller schemas should then include the bus schema.
> See spi-controller.yaml.

Host controller is always parent of these devices which is represented 
in the example.

In my previous patches, i did put this slave bindings in bus.txt, but 
Vinod suggested to move it to slave.txt.

Are you suggesting to add two yamls here, one for slave and one for bus
Or just document this in one bus bindings?


> 
>>
>> diff --git a/Documentation/devicetree/bindings/soundwire/slave.txt b/Documentation/devicetree/bindings/soundwire/slave.txt
>> new file mode 100644
>> index 000000000000..201f65d2fafa
>> --- /dev/null
>> +++ b/Documentation/devicetree/bindings/soundwire/slave.txt
>> @@ -0,0 +1,51 @@
>> +SoundWire slave device bindings.
>> +
>> +SoundWire is a 2-pin multi-drop interface with data and clock line.
>> +It facilitates development of low cost, efficient, high performance systems.
>> +
>> +SoundWire slave devices:
>> +Every SoundWire controller node can contain zero or more child nodes
>> +representing slave devices on the bus. Every SoundWire slave device is
>> +uniquely determined by the enumeration address containing 5 fields:
>> +SoundWire Version, Instance ID, Manufacturer ID, Part ID
>> +and Class ID for a device. Addition to below required properties,
>> +child nodes can have device specific bindings.
>> +
>> +Required properties:
>> +- compatible:	 "sdw<LinkID><VersionID><InstanceID><MFD><PID><CID>".
>> +		  Is the textual representation of SoundWire Enumeration
>> +		  address along with Link ID. compatible string should contain
>> +		  SoundWire Link ID, SoundWire Version ID, Instance ID,
>> +		  Manufacturer ID, Part ID and Class ID in order
>> +		  represented as above and shall be in lower-case hexadecimal
>> +		  with leading zeroes. Vaild sizes of these fields are
>> +		  LinkID is 1 nibble,
>> +		  Version ID is 1 nibble
>> +		  Instance ID in 1 nibble
>> +		  MFD in 4 nibbles
>> +		  PID in 4 nibbles
>> +		  CID is 2 nibbles
>> +
>> +		  Version number '0x1' represents SoundWire 1.0
>> +		  Version number '0x2' represents SoundWire 1.1
> 
> This can all be a regex.
> 
>> +		  ex: "sdw0110217201000" represents 0 LinkID,
>> +		  SoundWire 1.0 version slave with Instance ID 1.
>> +		  More Information on detail of encoding of these fields can be
>> +		  found in MIPI Alliance DisCo & SoundWire 1.0 Specifications.
>> +
>> +SoundWire example for Qualcomm's SoundWire controller:
>> +
>> +soundwire@c2d0000 {
>> +	compatible = "qcom,soundwire-v1.5.0"
>> +	reg = <0x0c2d0000 0x2000>;
>> +
>> +	spkr_left:wsa8810-left{
>> +		compatible = "sdw0110217201000";
>> +		...
>> +	};
>> +
>> +	spkr_right:wsa8810-right{
>> +		compatible = "sdw0120217201000";
> 
> The normal way to distinguish instances is with 'reg'. So I think you
> need 'reg' with Instance ID moved there at least. Just guessing, but
> perhaps Link ID, too? And for 2 different classes of device is that
> enough?

In previous bindings ( https://lists.gt.net/linux/kernel/3403276 ) we 
did have instance-id as different property, however Pierre had some good 
suggestion to make it align with _ADR encoding as per MIPI DisCo spec.

Do you still think that we should split the instance id to reg property?

Thanks,
srini

> 
> Rob
> 

Re: [PATCH v3 1/4] dt-bindings: soundwire: add slave bindings

[Vinod Koul]

On 22-08-19, 11:12, Srinivas Kandagatla wrote:
> 
> 
> On 21/08/2019 22:44, Rob Herring wrote:
> > On Fri, Aug 09, 2019 at 02:34:04PM +0100, Srinivas Kandagatla wrote:
> > > This patch adds bindings for Soundwire Slave devices that includes how
> > > SoundWire enumeration address and Link ID are used to represented in
> > > SoundWire slave device tree nodes.
> > > 
> > > Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
> > > ---
> > >   .../devicetree/bindings/soundwire/slave.txt   | 51 +++++++++++++++++++
> > >   1 file changed, 51 insertions(+)
> > >   create mode 100644 Documentation/devicetree/bindings/soundwire/slave.txt
> > 
> > Can you convert this to DT schema given it is a common binding.
> > 
> 
> I will give that a go in next version!
> 
> > What does the host controller look like? You need to define the node
> > hierarchy. Bus controller schemas should then include the bus schema.
> > See spi-controller.yaml.
> 
> Host controller is always parent of these devices which is represented in
> the example.
> 
> In my previous patches, i did put this slave bindings in bus.txt, but Vinod
> suggested to move it to slave.txt.
> 
> Are you suggesting to add two yamls here, one for slave and one for bus
> Or just document this in one bus bindings?

That would be fine by me :-)

-- 
~Vinod

Re: [PATCH v3 1/4] dt-bindings: soundwire: add slave bindings

[Rob Herring]

On Thu, Aug 22, 2019 at 5:12 AM Srinivas Kandagatla
<srinivas.kandagatla@linaro.org> wrote:
>
>
>
> On 21/08/2019 22:44, Rob Herring wrote:
> > On Fri, Aug 09, 2019 at 02:34:04PM +0100, Srinivas Kandagatla wrote:
> >> This patch adds bindings for Soundwire Slave devices that includes how
> >> SoundWire enumeration address and Link ID are used to represented in
> >> SoundWire slave device tree nodes.
> >>
> >> Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
> >> ---
> >>   .../devicetree/bindings/soundwire/slave.txt   | 51 +++++++++++++++++++
> >>   1 file changed, 51 insertions(+)
> >>   create mode 100644 Documentation/devicetree/bindings/soundwire/slave.txt
> >
> > Can you convert this to DT schema given it is a common binding.
> >
>
> I will give that a go in next version!
>
> > What does the host controller look like? You need to define the node
> > hierarchy. Bus controller schemas should then include the bus schema.
> > See spi-controller.yaml.
>
> Host controller is always parent of these devices which is represented
> in the example.
>
> In my previous patches, i did put this slave bindings in bus.txt, but
> Vinod suggested to move it to slave.txt.
>
> Are you suggesting to add two yamls here, one for slave and one for bus
> Or just document this in one bus bindings?

One. Like I said, see spi-controller.yaml.

> >> diff --git a/Documentation/devicetree/bindings/soundwire/slave.txt b/Documentation/devicetree/bindings/soundwire/slave.txt
> >> new file mode 100644
> >> index 000000000000..201f65d2fafa
> >> --- /dev/null
> >> +++ b/Documentation/devicetree/bindings/soundwire/slave.txt
> >> @@ -0,0 +1,51 @@
> >> +SoundWire slave device bindings.
> >> +
> >> +SoundWire is a 2-pin multi-drop interface with data and clock line.
> >> +It facilitates development of low cost, efficient, high performance systems.
> >> +
> >> +SoundWire slave devices:
> >> +Every SoundWire controller node can contain zero or more child nodes
> >> +representing slave devices on the bus. Every SoundWire slave device is
> >> +uniquely determined by the enumeration address containing 5 fields:
> >> +SoundWire Version, Instance ID, Manufacturer ID, Part ID
> >> +and Class ID for a device. Addition to below required properties,
> >> +child nodes can have device specific bindings.
> >> +
> >> +Required properties:
> >> +- compatible:        "sdw<LinkID><VersionID><InstanceID><MFD><PID><CID>".
> >> +              Is the textual representation of SoundWire Enumeration
> >> +              address along with Link ID. compatible string should contain
> >> +              SoundWire Link ID, SoundWire Version ID, Instance ID,
> >> +              Manufacturer ID, Part ID and Class ID in order
> >> +              represented as above and shall be in lower-case hexadecimal
> >> +              with leading zeroes. Vaild sizes of these fields are
> >> +              LinkID is 1 nibble,
> >> +              Version ID is 1 nibble
> >> +              Instance ID in 1 nibble
> >> +              MFD in 4 nibbles
> >> +              PID in 4 nibbles
> >> +              CID is 2 nibbles
> >> +
> >> +              Version number '0x1' represents SoundWire 1.0
> >> +              Version number '0x2' represents SoundWire 1.1
> >
> > This can all be a regex.
> >
> >> +              ex: "sdw0110217201000" represents 0 LinkID,
> >> +              SoundWire 1.0 version slave with Instance ID 1.
> >> +              More Information on detail of encoding of these fields can be
> >> +              found in MIPI Alliance DisCo & SoundWire 1.0 Specifications.
> >> +
> >> +SoundWire example for Qualcomm's SoundWire controller:
> >> +
> >> +soundwire@c2d0000 {
> >> +    compatible = "qcom,soundwire-v1.5.0"
> >> +    reg = <0x0c2d0000 0x2000>;
> >> +
> >> +    spkr_left:wsa8810-left{
> >> +            compatible = "sdw0110217201000";
> >> +            ...
> >> +    };
> >> +
> >> +    spkr_right:wsa8810-right{
> >> +            compatible = "sdw0120217201000";
> >
> > The normal way to distinguish instances is with 'reg'. So I think you
> > need 'reg' with Instance ID moved there at least. Just guessing, but
> > perhaps Link ID, too? And for 2 different classes of device is that
> > enough?
>
> In previous bindings ( https://lists.gt.net/linux/kernel/3403276 ) we
> did have instance-id as different property, however Pierre had some good
> suggestion to make it align with _ADR encoding as per MIPI DisCo spec.
>
> Do you still think that we should split the instance id to reg property?

Assuming you could have more than 1 of the same device on the bus,
then you need some way to distinguish them and the way that's done for
DT is unit-address/reg. And compatible strings should be constant for
each instance.

Rob

Re: [PATCH v3 1/4] dt-bindings: soundwire: add slave bindings

[Vinod Koul]

On 22-08-19, 07:36, Rob Herring wrote:
> On Thu, Aug 22, 2019 at 5:12 AM Srinivas Kandagatla
> <srinivas.kandagatla@linaro.org> wrote:
> >
> >
> >
> > On 21/08/2019 22:44, Rob Herring wrote:
> > > On Fri, Aug 09, 2019 at 02:34:04PM +0100, Srinivas Kandagatla wrote:
> > >> This patch adds bindings for Soundwire Slave devices that includes how
> > >> SoundWire enumeration address and Link ID are used to represented in
> > >> SoundWire slave device tree nodes.
> > >>
> > >> Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
> > >> ---
> > >>   .../devicetree/bindings/soundwire/slave.txt   | 51 +++++++++++++++++++
> > >>   1 file changed, 51 insertions(+)
> > >>   create mode 100644 Documentation/devicetree/bindings/soundwire/slave.txt
> > >
> > > Can you convert this to DT schema given it is a common binding.
> > >
> >
> > I will give that a go in next version!
> >
> > > What does the host controller look like? You need to define the node
> > > hierarchy. Bus controller schemas should then include the bus schema.
> > > See spi-controller.yaml.
> >
> > Host controller is always parent of these devices which is represented
> > in the example.
> >
> > In my previous patches, i did put this slave bindings in bus.txt, but
> > Vinod suggested to move it to slave.txt.
> >
> > Are you suggesting to add two yamls here, one for slave and one for bus
> > Or just document this in one bus bindings?
> 
> One. Like I said, see spi-controller.yaml.
> 
> > >> diff --git a/Documentation/devicetree/bindings/soundwire/slave.txt b/Documentation/devicetree/bindings/soundwire/slave.txt
> > >> new file mode 100644
> > >> index 000000000000..201f65d2fafa
> > >> --- /dev/null
> > >> +++ b/Documentation/devicetree/bindings/soundwire/slave.txt
> > >> @@ -0,0 +1,51 @@
> > >> +SoundWire slave device bindings.
> > >> +
> > >> +SoundWire is a 2-pin multi-drop interface with data and clock line.
> > >> +It facilitates development of low cost, efficient, high performance systems.
> > >> +
> > >> +SoundWire slave devices:
> > >> +Every SoundWire controller node can contain zero or more child nodes
> > >> +representing slave devices on the bus. Every SoundWire slave device is
> > >> +uniquely determined by the enumeration address containing 5 fields:
> > >> +SoundWire Version, Instance ID, Manufacturer ID, Part ID
> > >> +and Class ID for a device. Addition to below required properties,
> > >> +child nodes can have device specific bindings.
> > >> +
> > >> +Required properties:
> > >> +- compatible:        "sdw<LinkID><VersionID><InstanceID><MFD><PID><CID>".
> > >> +              Is the textual representation of SoundWire Enumeration
> > >> +              address along with Link ID. compatible string should contain
> > >> +              SoundWire Link ID, SoundWire Version ID, Instance ID,
> > >> +              Manufacturer ID, Part ID and Class ID in order
> > >> +              represented as above and shall be in lower-case hexadecimal
> > >> +              with leading zeroes. Vaild sizes of these fields are
> > >> +              LinkID is 1 nibble,
> > >> +              Version ID is 1 nibble
> > >> +              Instance ID in 1 nibble
> > >> +              MFD in 4 nibbles
> > >> +              PID in 4 nibbles
> > >> +              CID is 2 nibbles
> > >> +
> > >> +              Version number '0x1' represents SoundWire 1.0
> > >> +              Version number '0x2' represents SoundWire 1.1
> > >
> > > This can all be a regex.
> > >
> > >> +              ex: "sdw0110217201000" represents 0 LinkID,
> > >> +              SoundWire 1.0 version slave with Instance ID 1.
> > >> +              More Information on detail of encoding of these fields can be
> > >> +              found in MIPI Alliance DisCo & SoundWire 1.0 Specifications.
> > >> +
> > >> +SoundWire example for Qualcomm's SoundWire controller:
> > >> +
> > >> +soundwire@c2d0000 {
> > >> +    compatible = "qcom,soundwire-v1.5.0"
> > >> +    reg = <0x0c2d0000 0x2000>;
> > >> +
> > >> +    spkr_left:wsa8810-left{
> > >> +            compatible = "sdw0110217201000";
> > >> +            ...
> > >> +    };
> > >> +
> > >> +    spkr_right:wsa8810-right{
> > >> +            compatible = "sdw0120217201000";
> > >
> > > The normal way to distinguish instances is with 'reg'. So I think you
> > > need 'reg' with Instance ID moved there at least. Just guessing, but
> > > perhaps Link ID, too? And for 2 different classes of device is that
> > > enough?
> >
> > In previous bindings ( https://lists.gt.net/linux/kernel/3403276 ) we
> > did have instance-id as different property, however Pierre had some good
> > suggestion to make it align with _ADR encoding as per MIPI DisCo spec.
> >
> > Do you still think that we should split the instance id to reg property?
> 
> Assuming you could have more than 1 of the same device on the bus,
> then you need some way to distinguish them and the way that's done for
> DT is unit-address/reg. And compatible strings should be constant for
> each instance.

That does make sense, we can use unit-address/reg as instance id.

Thanks
-- 
~Vinod

Re: [PATCH v3 1/4] dt-bindings: soundwire: add slave bindings

[Srinivas Kandagatla]

On 22/08/2019 13:36, Rob Herring wrote:
>>>> +soundwire@c2d0000 {
>>>> +    compatible = "qcom,soundwire-v1.5.0"
>>>> +    reg = <0x0c2d0000 0x2000>;
>>>> +
>>>> +    spkr_left:wsa8810-left{
>>>> +            compatible = "sdw0110217201000";
>>>> +            ...
>>>> +    };
>>>> +
>>>> +    spkr_right:wsa8810-right{
>>>> +            compatible = "sdw0120217201000";
>>> The normal way to distinguish instances is with 'reg'. So I think you
>>> need 'reg' with Instance ID moved there at least. Just guessing, but
>>> perhaps Link ID, too? And for 2 different classes of device is that
>>> enough?
>> In previous bindings (https://lists.gt.net/linux/kernel/3403276  ) we
>> did have instance-id as different property, however Pierre had some good
>> suggestion to make it align with _ADR encoding as per MIPI DisCo spec.
>>
>> Do you still think that we should split the instance id to reg property?
> Assuming you could have more than 1 of the same device on the bus,
> then you need some way to distinguish them and the way that's done for
> DT is unit-address/reg. And compatible strings should be constant for
> each instance.
That is a good point!
Okay that makes more sense keep compatible string constant.
Class ID would be constant for given functionality that the driver will 
provide.

So we will end up with some thing like this:

soundwire@c2d0000 {
	compatible = "qcom,soundwire-v1.5.0"
	reg = <0x0c2d0000 0x2000>;	
         #address-cells = <1>;
         #size-cells = <0>;

	spkr_left:skpr@1{
		compatible = "sdw10217201000";
		reg = <0x1>
		sdw-link-id = <0>;
		...
	};

	spkr_right:spkr@2{
		compatible = "sdw10217201000";
		reg = <0x2>
		sdw-link-id = <0>;
	};
};

I will spin this in next version!

Thanks,
srini

> 
> Rob

Re: [PATCH v3 1/4] dt-bindings: soundwire: add slave bindings

[Rob Herring]

On Thu, Aug 22, 2019 at 7:56 AM Srinivas Kandagatla
<srinivas.kandagatla@linaro.org> wrote:
>
>
>
> On 22/08/2019 13:36, Rob Herring wrote:
> >>>> +soundwire@c2d0000 {
> >>>> +    compatible = "qcom,soundwire-v1.5.0"
> >>>> +    reg = <0x0c2d0000 0x2000>;
> >>>> +
> >>>> +    spkr_left:wsa8810-left{
> >>>> +            compatible = "sdw0110217201000";
> >>>> +            ...
> >>>> +    };
> >>>> +
> >>>> +    spkr_right:wsa8810-right{
> >>>> +            compatible = "sdw0120217201000";
> >>> The normal way to distinguish instances is with 'reg'. So I think you
> >>> need 'reg' with Instance ID moved there at least. Just guessing, but
> >>> perhaps Link ID, too? And for 2 different classes of device is that
> >>> enough?
> >> In previous bindings (https://lists.gt.net/linux/kernel/3403276  ) we
> >> did have instance-id as different property, however Pierre had some good
> >> suggestion to make it align with _ADR encoding as per MIPI DisCo spec.
> >>
> >> Do you still think that we should split the instance id to reg property?
> > Assuming you could have more than 1 of the same device on the bus,
> > then you need some way to distinguish them and the way that's done for
> > DT is unit-address/reg. And compatible strings should be constant for
> > each instance.
> That is a good point!
> Okay that makes more sense keep compatible string constant.
> Class ID would be constant for given functionality that the driver will
> provide.
>
> So we will end up with some thing like this:
>
> soundwire@c2d0000 {
>         compatible = "qcom,soundwire-v1.5.0"
>         reg = <0x0c2d0000 0x2000>;
>          #address-cells = <1>;
>          #size-cells = <0>;
>
>         spkr_left:skpr@1{
>                 compatible = "sdw10217201000";
>                 reg = <0x1>
>                 sdw-link-id = <0>;

Not really sure what Link ID is, but maybe it should be part of reg
too if it is part of how you address a device.

>                 ...
>         };
>
>         spkr_right:spkr@2{
>                 compatible = "sdw10217201000";
>                 reg = <0x2>
>                 sdw-link-id = <0>;
>         };
> };
>
> I will spin this in next version!
>
> Thanks,
> srini
>
> >
> > Rob

[PATCH v3 2/4] soundwire: core: add device tree support for slave devices

[Srinivas Kandagatla]

This patch adds support to parsing device tree based
SoundWire slave devices.

Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
---
 drivers/soundwire/bus.c   |  2 ++
 drivers/soundwire/bus.h   |  1 +
 drivers/soundwire/slave.c | 44 +++++++++++++++++++++++++++++++++++++++
 3 files changed, 47 insertions(+)

diff --git a/drivers/soundwire/bus.c b/drivers/soundwire/bus.c
index fe745830a261..324c54dc52fb 100644
--- a/drivers/soundwire/bus.c
+++ b/drivers/soundwire/bus.c
@@ -77,6 +77,8 @@ int sdw_add_bus_master(struct sdw_bus *bus)
 	 */
 	if (IS_ENABLED(CONFIG_ACPI) && ACPI_HANDLE(bus->dev))
 		ret = sdw_acpi_find_slaves(bus);
+	else if (IS_ENABLED(CONFIG_OF) && bus->dev->of_node)
+		ret = sdw_of_find_slaves(bus);
 	else
 		ret = -ENOTSUPP; /* No ACPI/DT so error out */
 
diff --git a/drivers/soundwire/bus.h b/drivers/soundwire/bus.h
index 3048ca153f22..ee46befedbd1 100644
--- a/drivers/soundwire/bus.h
+++ b/drivers/soundwire/bus.h
@@ -15,6 +15,7 @@ static inline int sdw_acpi_find_slaves(struct sdw_bus *bus)
 }
 #endif
 
+int sdw_of_find_slaves(struct sdw_bus *bus);
 void sdw_extract_slave_id(struct sdw_bus *bus,
 			  u64 addr, struct sdw_slave_id *id);
 
diff --git a/drivers/soundwire/slave.c b/drivers/soundwire/slave.c
index f39a5815e25d..c0dd79fc4fc5 100644
--- a/drivers/soundwire/slave.c
+++ b/drivers/soundwire/slave.c
@@ -2,6 +2,7 @@
 // Copyright(c) 2015-17 Intel Corporation.
 
 #include <linux/acpi.h>
+#include <linux/of.h>
 #include <linux/soundwire/sdw.h>
 #include <linux/soundwire/sdw_type.h>
 #include "bus.h"
@@ -35,6 +36,7 @@ static int sdw_slave_add(struct sdw_bus *bus,
 
 	slave->dev.release = sdw_slave_release;
 	slave->dev.bus = &sdw_bus_type;
+	slave->dev.of_node = of_node_get(to_of_node(fwnode));
 	slave->bus = bus;
 	slave->status = SDW_SLAVE_UNATTACHED;
 	slave->dev_num = 0;
@@ -112,3 +114,45 @@ int sdw_acpi_find_slaves(struct sdw_bus *bus)
 }
 
 #endif
+
+/*
+ * sdw_of_find_slaves() - Find Slave devices in master device tree node
+ * @bus: SDW bus instance
+ *
+ * Scans Master DT node for SDW child Slave devices and registers it.
+ */
+int sdw_of_find_slaves(struct sdw_bus *bus)
+{
+	struct device *dev = bus->dev;
+	struct device_node *node;
+
+	for_each_child_of_node(bus->dev->of_node, node) {
+		struct sdw_slave_id id;
+		const char *compat = NULL;
+		int unique_id, link_id, sdw_version, ret;
+
+		compat = of_get_property(node, "compatible", NULL);
+		if (!compat)
+			continue;
+
+		ret = sscanf(compat, "sdw%01x%01x%01x%04hx%04hx%02hhx",
+			     &link_id, &sdw_version, &unique_id, &id.mfg_id,
+			     &id.part_id, &id.class_id);
+
+		if (ret != 6) {
+			dev_err(dev, "Invalid compatible string found %s\n",
+				compat);
+			continue;
+		}
+
+		/* Check for link_id match */
+		if (link_id != bus->link_id)
+			continue;
+
+		id.sdw_version = sdw_version;
+		id.unique_id = unique_id;
+		sdw_slave_add(bus, &id, of_fwnode_handle(node));
+	}
+
+	return 0;
+}
-- 
2.21.0

[PATCH v3 3/4] dt-bindings: ASoC: Add WSA881x bindings

[Srinivas Kandagatla]

This patch adds bindings for WSA8810/WSA8815 Class-D Smart Speaker
Amplifier. This Amplifier also has a simple thermal sensor for
over temperature and speaker protection.

Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
---
 .../bindings/sound/qcom,wsa881x.txt           | 24 +++++++++++++++++++
 1 file changed, 24 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/sound/qcom,wsa881x.txt

diff --git a/Documentation/devicetree/bindings/sound/qcom,wsa881x.txt b/Documentation/devicetree/bindings/sound/qcom,wsa881x.txt
new file mode 100644
index 000000000000..d2aeb5c58d30
--- /dev/null
+++ b/Documentation/devicetree/bindings/sound/qcom,wsa881x.txt
@@ -0,0 +1,24 @@
+Bindings for Qualcomm WSA8810/WSA8815 Class-D Smart Speaker Amplifier
+
+WSA8810 is a class-D smart speaker amplifier and WSA8815 is a high-output
+power class-D smart speaker amplifier. This amplifier uses SoundWire
+digital audio as primary interface.
+
+Required properties with SoundWire Interface:
+
+- compatible:		Should be textual representation of SoundWire Enumeration
+			address.
+			Refer to soundwire/slave.txt for details.
+			Should be "sdw0110217201000" for WSA8810
+
+- pd-gpios: 		Should be phandle and gpio pair for
+			Powerdown/Shutdown pin.
+- #thermal-sensor-cells: Should be 0 
+
+Example:
+
+spkr_left:wsa8810-left{
+	compatible = "sdw0110217201000";
+	#thermal-sensor-cells = <0>;
+	...
+};
-- 
2.21.0

[PATCH v3 4/4] ASoC: codecs: add wsa881x amplifier support

[Srinivas Kandagatla]

This patch adds support to WSA8810/WSA8815 Class-D Smart Speaker
Amplifier. This Amplifier is primarily interfaced with SoundWire.
One WSA is used for mono speaker configuration and second one
would give stereo setup.

This patch is tested on SDM845 based DragonBoard DB845c.

Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
---
 sound/soc/codecs/Kconfig   |   10 +
 sound/soc/codecs/Makefile  |    2 +
 sound/soc/codecs/wsa881x.c | 1134 ++++++++++++++++++++++++++++++++++++
 3 files changed, 1146 insertions(+)
 create mode 100644 sound/soc/codecs/wsa881x.c

diff --git a/sound/soc/codecs/Kconfig b/sound/soc/codecs/Kconfig
index 89238343e34d..9f8fa1016d22 100644
--- a/sound/soc/codecs/Kconfig
+++ b/sound/soc/codecs/Kconfig
@@ -203,6 +203,7 @@ config SND_SOC_ALL_CODECS
 	select SND_SOC_UDA134X
 	select SND_SOC_UDA1380 if I2C
 	select SND_SOC_WCD9335 if SLIMBUS
+	select SND_SOC_WSA881X if SOUNDWIRE
 	select SND_SOC_WL1273 if MFD_WL1273_CORE
 	select SND_SOC_WM0010 if SPI_MASTER
 	select SND_SOC_WM1250_EV1 if I2C
@@ -1233,6 +1234,15 @@ config SND_SOC_WCD9335
 	  Qualcomm Technologies, Inc. (QTI) multimedia solutions,
 	  including the MSM8996, MSM8976, and MSM8956 chipsets.
 
+config SND_SOC_WSA881X
+	tristate "WSA881X Codec"
+	depends on SOUNDWIRE
+	select REGMAP_SOUNDWIRE
+	tristate
+	help
+	  This enables support for Qualcomm WSA8810/WSA8815 Class-D
+	  Smart Speaker Amplifier.
+
 config SND_SOC_WL1273
 	tristate
 
diff --git a/sound/soc/codecs/Makefile b/sound/soc/codecs/Makefile
index c498373dcc5f..ab07becf31f8 100644
--- a/sound/soc/codecs/Makefile
+++ b/sound/soc/codecs/Makefile
@@ -216,6 +216,7 @@ snd-soc-uda1334-objs := uda1334.o
 snd-soc-uda134x-objs := uda134x.o
 snd-soc-uda1380-objs := uda1380.o
 snd-soc-wcd9335-objs := wcd-clsh-v2.o wcd9335.o
+snd-soc-wsa881x-objs := wsa881x.o
 snd-soc-wl1273-objs := wl1273.o
 snd-soc-wm-adsp-objs := wm_adsp.o
 snd-soc-wm0010-objs := wm0010.o
@@ -499,6 +500,7 @@ obj-$(CONFIG_SND_SOC_UDA1334)	+= snd-soc-uda1334.o
 obj-$(CONFIG_SND_SOC_UDA134X)	+= snd-soc-uda134x.o
 obj-$(CONFIG_SND_SOC_UDA1380)	+= snd-soc-uda1380.o
 obj-$(CONFIG_SND_SOC_WCD9335)	+= snd-soc-wcd9335.o
+obj-$(CONFIG_SND_SOC_WSA881X)	+= snd-soc-wsa881x.o
 obj-$(CONFIG_SND_SOC_WL1273)	+= snd-soc-wl1273.o
 obj-$(CONFIG_SND_SOC_WM0010)	+= snd-soc-wm0010.o
 obj-$(CONFIG_SND_SOC_WM1250_EV1) += snd-soc-wm1250-ev1.o
diff --git a/sound/soc/codecs/wsa881x.c b/sound/soc/codecs/wsa881x.c
new file mode 100644
index 000000000000..82bcfb932c2c
--- /dev/null
+++ b/sound/soc/codecs/wsa881x.c
@@ -0,0 +1,1134 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) 2015-2017, The Linux Foundation.
+// Copyright (c) 2019, Linaro Limited
+
+#include <linux/bitops.h>
+#include <linux/gpio.h>
+#include <linux/gpio/consumer.h>
+#include <linux/interrupt.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/of_gpio.h>
+#include <linux/regmap.h>
+#include <linux/slab.h>
+#include <linux/soundwire/sdw.h>
+#include <linux/soundwire/sdw_registers.h>
+#include <linux/soundwire/sdw_type.h>
+#include <sound/soc.h>
+#include <sound/tlv.h>
+
+#define WSA881X_DIGITAL_BASE		0x3000
+#define WSA881X_ANALOG_BASE		0x3100
+
+/* Digital register address space */
+#define WSA881X_CHIP_ID0			(WSA881X_DIGITAL_BASE + 0x0000)
+#define WSA881X_CHIP_ID1			(WSA881X_DIGITAL_BASE + 0x0001)
+#define WSA881X_CHIP_ID2			(WSA881X_DIGITAL_BASE + 0x0002)
+#define WSA881X_CHIP_ID3			(WSA881X_DIGITAL_BASE + 0x0003)
+#define WSA881X_BUS_ID				(WSA881X_DIGITAL_BASE + 0x0004)
+#define WSA881X_CDC_RST_CTL			(WSA881X_DIGITAL_BASE + 0x0005)
+#define WSA881X_CDC_TOP_CLK_CTL			(WSA881X_DIGITAL_BASE + 0x0006)
+#define WSA881X_CDC_ANA_CLK_CTL			(WSA881X_DIGITAL_BASE + 0x0007)
+#define WSA881X_CDC_DIG_CLK_CTL			(WSA881X_DIGITAL_BASE + 0x0008)
+#define WSA881X_CLOCK_CONFIG			(WSA881X_DIGITAL_BASE + 0x0009)
+#define WSA881X_ANA_CTL				(WSA881X_DIGITAL_BASE + 0x000A)
+#define WSA881X_SWR_RESET_EN			(WSA881X_DIGITAL_BASE + 0x000B)
+#define WSA881X_RESET_CTL			(WSA881X_DIGITAL_BASE + 0x000C)
+#define WSA881X_TADC_VALUE_CTL			(WSA881X_DIGITAL_BASE + 0x000F)
+#define WSA881X_TEMP_DETECT_CTL			(WSA881X_DIGITAL_BASE + 0x0010)
+#define WSA881X_TEMP_MSB			(WSA881X_DIGITAL_BASE + 0x0011)
+#define WSA881X_TEMP_LSB			(WSA881X_DIGITAL_BASE + 0x0012)
+#define WSA881X_TEMP_CONFIG0			(WSA881X_DIGITAL_BASE + 0x0013)
+#define WSA881X_TEMP_CONFIG1			(WSA881X_DIGITAL_BASE + 0x0014)
+#define WSA881X_CDC_CLIP_CTL			(WSA881X_DIGITAL_BASE + 0x0015)
+#define WSA881X_SDM_PDM9_LSB			(WSA881X_DIGITAL_BASE + 0x0016)
+#define WSA881X_SDM_PDM9_MSB			(WSA881X_DIGITAL_BASE + 0x0017)
+#define WSA881X_CDC_RX_CTL			(WSA881X_DIGITAL_BASE + 0x0018)
+#define WSA881X_DEM_BYPASS_DATA0		(WSA881X_DIGITAL_BASE + 0x0019)
+#define WSA881X_DEM_BYPASS_DATA1		(WSA881X_DIGITAL_BASE + 0x001A)
+#define WSA881X_DEM_BYPASS_DATA2		(WSA881X_DIGITAL_BASE + 0x001B)
+#define WSA881X_DEM_BYPASS_DATA3		(WSA881X_DIGITAL_BASE + 0x001C)
+#define WSA881X_OTP_CTRL0			(WSA881X_DIGITAL_BASE + 0x001D)
+#define WSA881X_OTP_CTRL1			(WSA881X_DIGITAL_BASE + 0x001E)
+#define WSA881X_HDRIVE_CTL_GROUP1		(WSA881X_DIGITAL_BASE + 0x001F)
+#define WSA881X_INTR_MODE			(WSA881X_DIGITAL_BASE + 0x0020)
+#define WSA881X_INTR_MASK			(WSA881X_DIGITAL_BASE + 0x0021)
+#define WSA881X_INTR_STATUS			(WSA881X_DIGITAL_BASE + 0x0022)
+#define WSA881X_INTR_CLEAR			(WSA881X_DIGITAL_BASE + 0x0023)
+#define WSA881X_INTR_LEVEL			(WSA881X_DIGITAL_BASE + 0x0024)
+#define WSA881X_INTR_SET			(WSA881X_DIGITAL_BASE + 0x0025)
+#define WSA881X_INTR_TEST			(WSA881X_DIGITAL_BASE + 0x0026)
+#define WSA881X_PDM_TEST_MODE			(WSA881X_DIGITAL_BASE + 0x0030)
+#define WSA881X_ATE_TEST_MODE			(WSA881X_DIGITAL_BASE + 0x0031)
+#define WSA881X_PIN_CTL_MODE			(WSA881X_DIGITAL_BASE + 0x0032)
+#define WSA881X_PIN_CTL_OE			(WSA881X_DIGITAL_BASE + 0x0033)
+#define WSA881X_PIN_WDATA_IOPAD			(WSA881X_DIGITAL_BASE + 0x0034)
+#define WSA881X_PIN_STATUS			(WSA881X_DIGITAL_BASE + 0x0035)
+#define WSA881X_DIG_DEBUG_MODE			(WSA881X_DIGITAL_BASE + 0x0037)
+#define WSA881X_DIG_DEBUG_SEL			(WSA881X_DIGITAL_BASE + 0x0038)
+#define WSA881X_DIG_DEBUG_EN			(WSA881X_DIGITAL_BASE + 0x0039)
+#define WSA881X_SWR_HM_TEST1			(WSA881X_DIGITAL_BASE + 0x003B)
+#define WSA881X_SWR_HM_TEST2			(WSA881X_DIGITAL_BASE + 0x003C)
+#define WSA881X_TEMP_DETECT_DBG_CTL		(WSA881X_DIGITAL_BASE + 0x003D)
+#define WSA881X_TEMP_DEBUG_MSB			(WSA881X_DIGITAL_BASE + 0x003E)
+#define WSA881X_TEMP_DEBUG_LSB			(WSA881X_DIGITAL_BASE + 0x003F)
+#define WSA881X_SAMPLE_EDGE_SEL			(WSA881X_DIGITAL_BASE + 0x0044)
+#define WSA881X_IOPAD_CTL			(WSA881X_DIGITAL_BASE + 0x0045)
+#define WSA881X_SPARE_0				(WSA881X_DIGITAL_BASE + 0x0050)
+#define WSA881X_SPARE_1				(WSA881X_DIGITAL_BASE + 0x0051)
+#define WSA881X_SPARE_2				(WSA881X_DIGITAL_BASE + 0x0052)
+#define WSA881X_OTP_REG_0			(WSA881X_DIGITAL_BASE + 0x0080)
+#define WSA881X_OTP_REG_1			(WSA881X_DIGITAL_BASE + 0x0081)
+#define WSA881X_OTP_REG_2			(WSA881X_DIGITAL_BASE + 0x0082)
+#define WSA881X_OTP_REG_3			(WSA881X_DIGITAL_BASE + 0x0083)
+#define WSA881X_OTP_REG_4			(WSA881X_DIGITAL_BASE + 0x0084)
+#define WSA881X_OTP_REG_5			(WSA881X_DIGITAL_BASE + 0x0085)
+#define WSA881X_OTP_REG_6			(WSA881X_DIGITAL_BASE + 0x0086)
+#define WSA881X_OTP_REG_7			(WSA881X_DIGITAL_BASE + 0x0087)
+#define WSA881X_OTP_REG_8			(WSA881X_DIGITAL_BASE + 0x0088)
+#define WSA881X_OTP_REG_9			(WSA881X_DIGITAL_BASE + 0x0089)
+#define WSA881X_OTP_REG_10			(WSA881X_DIGITAL_BASE + 0x008A)
+#define WSA881X_OTP_REG_11			(WSA881X_DIGITAL_BASE + 0x008B)
+#define WSA881X_OTP_REG_12			(WSA881X_DIGITAL_BASE + 0x008C)
+#define WSA881X_OTP_REG_13			(WSA881X_DIGITAL_BASE + 0x008D)
+#define WSA881X_OTP_REG_14			(WSA881X_DIGITAL_BASE + 0x008E)
+#define WSA881X_OTP_REG_15			(WSA881X_DIGITAL_BASE + 0x008F)
+#define WSA881X_OTP_REG_16			(WSA881X_DIGITAL_BASE + 0x0090)
+#define WSA881X_OTP_REG_17			(WSA881X_DIGITAL_BASE + 0x0091)
+#define WSA881X_OTP_REG_18			(WSA881X_DIGITAL_BASE + 0x0092)
+#define WSA881X_OTP_REG_19			(WSA881X_DIGITAL_BASE + 0x0093)
+#define WSA881X_OTP_REG_20			(WSA881X_DIGITAL_BASE + 0x0094)
+#define WSA881X_OTP_REG_21			(WSA881X_DIGITAL_BASE + 0x0095)
+#define WSA881X_OTP_REG_22			(WSA881X_DIGITAL_BASE + 0x0096)
+#define WSA881X_OTP_REG_23			(WSA881X_DIGITAL_BASE + 0x0097)
+#define WSA881X_OTP_REG_24			(WSA881X_DIGITAL_BASE + 0x0098)
+#define WSA881X_OTP_REG_25			(WSA881X_DIGITAL_BASE + 0x0099)
+#define WSA881X_OTP_REG_26			(WSA881X_DIGITAL_BASE + 0x009A)
+#define WSA881X_OTP_REG_27			(WSA881X_DIGITAL_BASE + 0x009B)
+#define WSA881X_OTP_REG_28			(WSA881X_DIGITAL_BASE + 0x009C)
+#define WSA881X_OTP_REG_29			(WSA881X_DIGITAL_BASE + 0x009D)
+#define WSA881X_OTP_REG_30			(WSA881X_DIGITAL_BASE + 0x009E)
+#define WSA881X_OTP_REG_31			(WSA881X_DIGITAL_BASE + 0x009F)
+#define WSA881X_OTP_REG_63			(WSA881X_DIGITAL_BASE + 0x00BF)
+
+/* Analog Register address space */
+#define WSA881X_BIAS_REF_CTRL			(WSA881X_ANALOG_BASE + 0x0000)
+#define WSA881X_BIAS_TEST			(WSA881X_ANALOG_BASE + 0x0001)
+#define WSA881X_BIAS_BIAS			(WSA881X_ANALOG_BASE + 0x0002)
+#define WSA881X_TEMP_OP				(WSA881X_ANALOG_BASE + 0x0003)
+#define WSA881X_TEMP_IREF_CTRL			(WSA881X_ANALOG_BASE + 0x0004)
+#define WSA881X_TEMP_ISENS_CTRL			(WSA881X_ANALOG_BASE + 0x0005)
+#define WSA881X_TEMP_CLK_CTRL			(WSA881X_ANALOG_BASE + 0x0006)
+#define WSA881X_TEMP_TEST			(WSA881X_ANALOG_BASE + 0x0007)
+#define WSA881X_TEMP_BIAS			(WSA881X_ANALOG_BASE + 0x0008)
+#define WSA881X_TEMP_ADC_CTRL			(WSA881X_ANALOG_BASE + 0x0009)
+#define WSA881X_TEMP_DOUT_MSB			(WSA881X_ANALOG_BASE + 0x000A)
+#define WSA881X_TEMP_DOUT_LSB			(WSA881X_ANALOG_BASE + 0x000B)
+#define WSA881X_ADC_EN_MODU_V			(WSA881X_ANALOG_BASE + 0x0010)
+#define WSA881X_ADC_EN_MODU_I			(WSA881X_ANALOG_BASE + 0x0011)
+#define WSA881X_ADC_EN_DET_TEST_V		(WSA881X_ANALOG_BASE + 0x0012)
+#define WSA881X_ADC_EN_DET_TEST_I		(WSA881X_ANALOG_BASE + 0x0013)
+#define WSA881X_ADC_SEL_IBIAS			(WSA881X_ANALOG_BASE + 0x0014)
+#define WSA881X_ADC_EN_SEL_IBAIS		(WSA881X_ANALOG_BASE + 0x0015)
+#define WSA881X_SPKR_DRV_EN			(WSA881X_ANALOG_BASE + 0x001A)
+#define WSA881X_SPKR_DRV_GAIN			(WSA881X_ANALOG_BASE + 0x001B)
+#define WSA881X_SPKR_DAC_CTL			(WSA881X_ANALOG_BASE + 0x001C)
+#define WSA881X_SPKR_DRV_DBG			(WSA881X_ANALOG_BASE + 0x001D)
+#define WSA881X_SPKR_PWRSTG_DBG			(WSA881X_ANALOG_BASE + 0x001E)
+#define WSA881X_SPKR_OCP_CTL			(WSA881X_ANALOG_BASE + 0x001F)
+#define WSA881X_SPKR_CLIP_CTL			(WSA881X_ANALOG_BASE + 0x0020)
+#define WSA881X_SPKR_BBM_CTL			(WSA881X_ANALOG_BASE + 0x0021)
+#define WSA881X_SPKR_MISC_CTL1			(WSA881X_ANALOG_BASE + 0x0022)
+#define WSA881X_SPKR_MISC_CTL2			(WSA881X_ANALOG_BASE + 0x0023)
+#define WSA881X_SPKR_BIAS_INT			(WSA881X_ANALOG_BASE + 0x0024)
+#define WSA881X_SPKR_PA_INT			(WSA881X_ANALOG_BASE + 0x0025)
+#define WSA881X_SPKR_BIAS_CAL			(WSA881X_ANALOG_BASE + 0x0026)
+#define WSA881X_SPKR_BIAS_PSRR			(WSA881X_ANALOG_BASE + 0x0027)
+#define WSA881X_SPKR_STATUS1			(WSA881X_ANALOG_BASE + 0x0028)
+#define WSA881X_SPKR_STATUS2			(WSA881X_ANALOG_BASE + 0x0029)
+#define WSA881X_BOOST_EN_CTL			(WSA881X_ANALOG_BASE + 0x002A)
+#define WSA881X_BOOST_CURRENT_LIMIT		(WSA881X_ANALOG_BASE + 0x002B)
+#define WSA881X_BOOST_PS_CTL			(WSA881X_ANALOG_BASE + 0x002C)
+#define WSA881X_BOOST_PRESET_OUT1		(WSA881X_ANALOG_BASE + 0x002D)
+#define WSA881X_BOOST_PRESET_OUT2		(WSA881X_ANALOG_BASE + 0x002E)
+#define WSA881X_BOOST_FORCE_OUT			(WSA881X_ANALOG_BASE + 0x002F)
+#define WSA881X_BOOST_LDO_PROG			(WSA881X_ANALOG_BASE + 0x0030)
+#define WSA881X_BOOST_SLOPE_COMP_ISENSE_FB	(WSA881X_ANALOG_BASE + 0x0031)
+#define WSA881X_BOOST_RON_CTL			(WSA881X_ANALOG_BASE + 0x0032)
+#define WSA881X_BOOST_LOOP_STABILITY		(WSA881X_ANALOG_BASE + 0x0033)
+#define WSA881X_BOOST_ZX_CTL			(WSA881X_ANALOG_BASE + 0x0034)
+#define WSA881X_BOOST_START_CTL			(WSA881X_ANALOG_BASE + 0x0035)
+#define WSA881X_BOOST_MISC1_CTL			(WSA881X_ANALOG_BASE + 0x0036)
+#define WSA881X_BOOST_MISC2_CTL			(WSA881X_ANALOG_BASE + 0x0037)
+#define WSA881X_BOOST_MISC3_CTL			(WSA881X_ANALOG_BASE + 0x0038)
+#define WSA881X_BOOST_ATEST_CTL			(WSA881X_ANALOG_BASE + 0x0039)
+#define WSA881X_SPKR_PROT_FE_GAIN		(WSA881X_ANALOG_BASE + 0x003A)
+#define WSA881X_SPKR_PROT_FE_CM_LDO_SET		(WSA881X_ANALOG_BASE + 0x003B)
+#define WSA881X_SPKR_PROT_FE_ISENSE_BIAS_SET1	(WSA881X_ANALOG_BASE + 0x003C)
+#define WSA881X_SPKR_PROT_FE_ISENSE_BIAS_SET2	(WSA881X_ANALOG_BASE + 0x003D)
+#define WSA881X_SPKR_PROT_ATEST1		(WSA881X_ANALOG_BASE + 0x003E)
+#define WSA881X_SPKR_PROT_ATEST2		(WSA881X_ANALOG_BASE + 0x003F)
+#define WSA881X_SPKR_PROT_FE_VSENSE_VCM		(WSA881X_ANALOG_BASE + 0x0040)
+#define WSA881X_SPKR_PROT_FE_VSENSE_BIAS_SET1	(WSA881X_ANALOG_BASE + 0x0041)
+#define WSA881X_BONGO_RESRV_REG1		(WSA881X_ANALOG_BASE + 0x0042)
+#define WSA881X_BONGO_RESRV_REG2		(WSA881X_ANALOG_BASE + 0x0043)
+#define WSA881X_SPKR_PROT_SAR			(WSA881X_ANALOG_BASE + 0x0044)
+#define WSA881X_SPKR_STATUS3			(WSA881X_ANALOG_BASE + 0x0045)
+
+#define SWRS_SCP_FRAME_CTRL_BANK(m)		(0x60 + 0x10 * (m))
+#define SWRS_SCP_HOST_CLK_DIV2_CTL_BANK(m)	(0xE0 + 0x10 * (m))
+
+#define WSA881X_NUM_REGISTERS			(WSA881X_SPKR_STATUS3 + 1)
+#define WSA881X_MAX_REGISTER			(WSA881X_NUM_REGISTERS - 1)
+#define WSA881X_CACHE_SIZE			WSA881X_NUM_REGISTERS
+#define SWR_SLV_MAX_REG_ADDR	0x390
+#define SWR_SLV_START_REG_ADDR	0x40
+#define SWR_SLV_MAX_BUF_LEN	20
+#define BYTES_PER_LINE		12
+#define SWR_SLV_RD_BUF_LEN	8
+#define SWR_SLV_WR_BUF_LEN	32
+#define SWR_SLV_MAX_DEVICES	2
+#define WSA881X_MAX_SWR_PORTS   4
+#define WSA881X_VERSION_ENTRY_SIZE 27
+#define WSA881X_OCP_CTL_TIMER_SEC 2
+#define WSA881X_OCP_CTL_TEMP_CELSIUS 25
+#define WSA881X_OCP_CTL_POLL_TIMER_SEC 60
+
+#define WSA881X_PA_GAIN_TLV(xname, reg, shift, max, invert, tlv_array) \
+{	.iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
+	.access = SNDRV_CTL_ELEM_ACCESS_TLV_READ |\
+		 SNDRV_CTL_ELEM_ACCESS_READWRITE,\
+	.tlv.p = (tlv_array), \
+	.info = snd_soc_info_volsw, .get = snd_soc_get_volsw,\
+	.put = wsa881x_put_pa_gain, \
+	.private_value = SOC_SINGLE_VALUE(reg, shift, max, invert, 0) }
+
+static const u8 wsa881x_reg_readable[WSA881X_CACHE_SIZE] = {
+	[WSA881X_CHIP_ID0] = 1,
+	[WSA881X_CHIP_ID1] = 1,
+	[WSA881X_CHIP_ID2] = 1,
+	[WSA881X_CHIP_ID3] = 1,
+	[WSA881X_BUS_ID] = 1,
+	[WSA881X_CDC_RST_CTL] = 1,
+	[WSA881X_CDC_TOP_CLK_CTL] = 1,
+	[WSA881X_CDC_ANA_CLK_CTL] = 1,
+	[WSA881X_CDC_DIG_CLK_CTL] = 1,
+	[WSA881X_CLOCK_CONFIG] = 1,
+	[WSA881X_ANA_CTL] = 1,
+	[WSA881X_SWR_RESET_EN] = 1,
+	[WSA881X_RESET_CTL] = 1,
+	[WSA881X_TADC_VALUE_CTL] = 1,
+	[WSA881X_TEMP_DETECT_CTL] = 1,
+	[WSA881X_TEMP_MSB] = 1,
+	[WSA881X_TEMP_LSB] = 1,
+	[WSA881X_TEMP_CONFIG0] = 1,
+	[WSA881X_TEMP_CONFIG1] = 1,
+	[WSA881X_CDC_CLIP_CTL] = 1,
+	[WSA881X_SDM_PDM9_LSB] = 1,
+	[WSA881X_SDM_PDM9_MSB] = 1,
+	[WSA881X_CDC_RX_CTL] = 1,
+	[WSA881X_DEM_BYPASS_DATA0] = 1,
+	[WSA881X_DEM_BYPASS_DATA1] = 1,
+	[WSA881X_DEM_BYPASS_DATA2] = 1,
+	[WSA881X_DEM_BYPASS_DATA3] = 1,
+	[WSA881X_OTP_CTRL0] = 1,
+	[WSA881X_OTP_CTRL1] = 1,
+	[WSA881X_HDRIVE_CTL_GROUP1] = 1,
+	[WSA881X_INTR_MODE] = 1,
+	[WSA881X_INTR_MASK] = 1,
+	[WSA881X_INTR_STATUS] = 1,
+	[WSA881X_INTR_CLEAR] = 1,
+	[WSA881X_INTR_LEVEL] = 1,
+	[WSA881X_INTR_SET] = 1,
+	[WSA881X_INTR_TEST] = 1,
+	[WSA881X_PDM_TEST_MODE] = 1,
+	[WSA881X_ATE_TEST_MODE] = 1,
+	[WSA881X_PIN_CTL_MODE] = 1,
+	[WSA881X_PIN_CTL_OE] = 1,
+	[WSA881X_PIN_WDATA_IOPAD] = 1,
+	[WSA881X_PIN_STATUS] = 1,
+	[WSA881X_DIG_DEBUG_MODE] = 1,
+	[WSA881X_DIG_DEBUG_SEL] = 1,
+	[WSA881X_DIG_DEBUG_EN] = 1,
+	[WSA881X_SWR_HM_TEST1] = 1,
+	[WSA881X_SWR_HM_TEST2] = 1,
+	[WSA881X_TEMP_DETECT_DBG_CTL] = 1,
+	[WSA881X_TEMP_DEBUG_MSB] = 1,
+	[WSA881X_TEMP_DEBUG_LSB] = 1,
+	[WSA881X_SAMPLE_EDGE_SEL] = 1,
+	[WSA881X_IOPAD_CTL] = 1,
+	[WSA881X_SPARE_0] = 1,
+	[WSA881X_SPARE_1] = 1,
+	[WSA881X_SPARE_2] = 1,
+	[WSA881X_OTP_REG_0] = 1,
+	[WSA881X_OTP_REG_1] = 1,
+	[WSA881X_OTP_REG_2] = 1,
+	[WSA881X_OTP_REG_3] = 1,
+	[WSA881X_OTP_REG_4] = 1,
+	[WSA881X_OTP_REG_5] = 1,
+	[WSA881X_OTP_REG_6] = 1,
+	[WSA881X_OTP_REG_7] = 1,
+	[WSA881X_OTP_REG_8] = 1,
+	[WSA881X_OTP_REG_9] = 1,
+	[WSA881X_OTP_REG_10] = 1,
+	[WSA881X_OTP_REG_11] = 1,
+	[WSA881X_OTP_REG_12] = 1,
+	[WSA881X_OTP_REG_13] = 1,
+	[WSA881X_OTP_REG_14] = 1,
+	[WSA881X_OTP_REG_15] = 1,
+	[WSA881X_OTP_REG_16] = 1,
+	[WSA881X_OTP_REG_17] = 1,
+	[WSA881X_OTP_REG_18] = 1,
+	[WSA881X_OTP_REG_19] = 1,
+	[WSA881X_OTP_REG_20] = 1,
+	[WSA881X_OTP_REG_21] = 1,
+	[WSA881X_OTP_REG_22] = 1,
+	[WSA881X_OTP_REG_23] = 1,
+	[WSA881X_OTP_REG_24] = 1,
+	[WSA881X_OTP_REG_25] = 1,
+	[WSA881X_OTP_REG_26] = 1,
+	[WSA881X_OTP_REG_27] = 1,
+	[WSA881X_OTP_REG_28] = 1,
+	[WSA881X_OTP_REG_29] = 1,
+	[WSA881X_OTP_REG_30] = 1,
+	[WSA881X_OTP_REG_31] = 1,
+	[WSA881X_OTP_REG_63] = 1,
+	/* Analog Registers */
+	[WSA881X_BIAS_REF_CTRL] = 1,
+	[WSA881X_BIAS_TEST] = 1,
+	[WSA881X_BIAS_BIAS] = 1,
+	[WSA881X_TEMP_OP] = 1,
+	[WSA881X_TEMP_IREF_CTRL] = 1,
+	[WSA881X_TEMP_ISENS_CTRL] = 1,
+	[WSA881X_TEMP_CLK_CTRL] = 1,
+	[WSA881X_TEMP_TEST] = 1,
+	[WSA881X_TEMP_BIAS] = 1,
+	[WSA881X_TEMP_ADC_CTRL] = 1,
+	[WSA881X_TEMP_DOUT_MSB] = 1,
+	[WSA881X_TEMP_DOUT_LSB] = 1,
+	[WSA881X_ADC_EN_MODU_V] = 1,
+	[WSA881X_ADC_EN_MODU_I] = 1,
+	[WSA881X_ADC_EN_DET_TEST_V] = 1,
+	[WSA881X_ADC_EN_DET_TEST_I] = 1,
+	[WSA881X_ADC_SEL_IBIAS] = 1,
+	[WSA881X_ADC_EN_SEL_IBAIS] = 1,
+	[WSA881X_SPKR_DRV_EN] = 1,
+	[WSA881X_SPKR_DRV_GAIN] = 1,
+	[WSA881X_SPKR_DAC_CTL] = 1,
+	[WSA881X_SPKR_DRV_DBG] = 1,
+	[WSA881X_SPKR_PWRSTG_DBG] = 1,
+	[WSA881X_SPKR_OCP_CTL] = 1,
+	[WSA881X_SPKR_CLIP_CTL] = 1,
+	[WSA881X_SPKR_BBM_CTL] = 1,
+	[WSA881X_SPKR_MISC_CTL1] = 1,
+	[WSA881X_SPKR_MISC_CTL2] = 1,
+	[WSA881X_SPKR_BIAS_INT] = 1,
+	[WSA881X_SPKR_PA_INT] = 1,
+	[WSA881X_SPKR_BIAS_CAL] = 1,
+	[WSA881X_SPKR_BIAS_PSRR] = 1,
+	[WSA881X_SPKR_STATUS1] = 1,
+	[WSA881X_SPKR_STATUS2] = 1,
+	[WSA881X_BOOST_EN_CTL] = 1,
+	[WSA881X_BOOST_CURRENT_LIMIT] = 1,
+	[WSA881X_BOOST_PS_CTL] = 1,
+	[WSA881X_BOOST_PRESET_OUT1] = 1,
+	[WSA881X_BOOST_PRESET_OUT2] = 1,
+	[WSA881X_BOOST_FORCE_OUT] = 1,
+	[WSA881X_BOOST_LDO_PROG] = 1,
+	[WSA881X_BOOST_SLOPE_COMP_ISENSE_FB] = 1,
+	[WSA881X_BOOST_RON_CTL] = 1,
+	[WSA881X_BOOST_LOOP_STABILITY] = 1,
+	[WSA881X_BOOST_ZX_CTL] = 1,
+	[WSA881X_BOOST_START_CTL] = 1,
+	[WSA881X_BOOST_MISC1_CTL] = 1,
+	[WSA881X_BOOST_MISC2_CTL] = 1,
+	[WSA881X_BOOST_MISC3_CTL] = 1,
+	[WSA881X_BOOST_ATEST_CTL] = 1,
+	[WSA881X_SPKR_PROT_FE_GAIN] = 1,
+	[WSA881X_SPKR_PROT_FE_CM_LDO_SET] = 1,
+	[WSA881X_SPKR_PROT_FE_ISENSE_BIAS_SET1] = 1,
+	[WSA881X_SPKR_PROT_FE_ISENSE_BIAS_SET2] = 1,
+	[WSA881X_SPKR_PROT_ATEST1] = 1,
+	[WSA881X_SPKR_PROT_ATEST2] = 1,
+	[WSA881X_SPKR_PROT_FE_VSENSE_VCM] = 1,
+	[WSA881X_SPKR_PROT_FE_VSENSE_BIAS_SET1] = 1,
+	[WSA881X_BONGO_RESRV_REG1] = 1,
+	[WSA881X_BONGO_RESRV_REG2] = 1,
+	[WSA881X_SPKR_PROT_SAR] = 1,
+	[WSA881X_SPKR_STATUS3] = 1,
+};
+
+static struct reg_default wsa881x_defaults[] = {
+	{WSA881X_CHIP_ID0, 0x00},
+	{WSA881X_CHIP_ID1, 0x00},
+	{WSA881X_CHIP_ID2, 0x00},
+	{WSA881X_CHIP_ID3, 0x02},
+	{WSA881X_BUS_ID, 0x00},
+	{WSA881X_CDC_RST_CTL, 0x00},
+	{WSA881X_CDC_TOP_CLK_CTL, 0x03},
+	{WSA881X_CDC_ANA_CLK_CTL, 0x00},
+	{WSA881X_CDC_DIG_CLK_CTL, 0x00},
+	{WSA881X_CLOCK_CONFIG, 0x00},
+	{WSA881X_ANA_CTL, 0x08},
+	{WSA881X_SWR_RESET_EN, 0x00},
+	{WSA881X_TEMP_DETECT_CTL, 0x01},
+	{WSA881X_TEMP_MSB, 0x00},
+	{WSA881X_TEMP_LSB, 0x00},
+	{WSA881X_TEMP_CONFIG0, 0x00},
+	{WSA881X_TEMP_CONFIG1, 0x00},
+	{WSA881X_CDC_CLIP_CTL, 0x03},
+	{WSA881X_SDM_PDM9_LSB, 0x00},
+	{WSA881X_SDM_PDM9_MSB, 0x00},
+	{WSA881X_CDC_RX_CTL, 0x7E},
+	{WSA881X_DEM_BYPASS_DATA0, 0x00},
+	{WSA881X_DEM_BYPASS_DATA1, 0x00},
+	{WSA881X_DEM_BYPASS_DATA2, 0x00},
+	{WSA881X_DEM_BYPASS_DATA3, 0x00},
+	{WSA881X_OTP_CTRL0, 0x00},
+	{WSA881X_OTP_CTRL1, 0x00},
+	{WSA881X_HDRIVE_CTL_GROUP1, 0x00},
+	{WSA881X_INTR_MODE, 0x00},
+	{WSA881X_INTR_STATUS, 0x00},
+	{WSA881X_INTR_CLEAR, 0x00},
+	{WSA881X_INTR_LEVEL, 0x00},
+	{WSA881X_INTR_SET, 0x00},
+	{WSA881X_INTR_TEST, 0x00},
+	{WSA881X_PDM_TEST_MODE, 0x00},
+	{WSA881X_ATE_TEST_MODE, 0x00},
+	{WSA881X_PIN_CTL_MODE, 0x00},
+	{WSA881X_PIN_CTL_OE, 0x00},
+	{WSA881X_PIN_WDATA_IOPAD, 0x00},
+	{WSA881X_PIN_STATUS, 0x00},
+	{WSA881X_DIG_DEBUG_MODE, 0x00},
+	{WSA881X_DIG_DEBUG_SEL, 0x00},
+	{WSA881X_DIG_DEBUG_EN, 0x00},
+	{WSA881X_SWR_HM_TEST1, 0x08},
+	{WSA881X_SWR_HM_TEST2, 0x00},
+	{WSA881X_TEMP_DETECT_DBG_CTL, 0x00},
+	{WSA881X_TEMP_DEBUG_MSB, 0x00},
+	{WSA881X_TEMP_DEBUG_LSB, 0x00},
+	{WSA881X_SAMPLE_EDGE_SEL, 0x0C},
+	{WSA881X_SPARE_0, 0x00},
+	{WSA881X_SPARE_1, 0x00},
+	{WSA881X_SPARE_2, 0x00},
+	{WSA881X_OTP_REG_0, 0x01},
+	{WSA881X_OTP_REG_1, 0xFF},
+	{WSA881X_OTP_REG_2, 0xC0},
+	{WSA881X_OTP_REG_3, 0xFF},
+	{WSA881X_OTP_REG_4, 0xC0},
+	{WSA881X_OTP_REG_5, 0xFF},
+	{WSA881X_OTP_REG_6, 0xFF},
+	{WSA881X_OTP_REG_7, 0xFF},
+	{WSA881X_OTP_REG_8, 0xFF},
+	{WSA881X_OTP_REG_9, 0xFF},
+	{WSA881X_OTP_REG_10, 0xFF},
+	{WSA881X_OTP_REG_11, 0xFF},
+	{WSA881X_OTP_REG_12, 0xFF},
+	{WSA881X_OTP_REG_13, 0xFF},
+	{WSA881X_OTP_REG_14, 0xFF},
+	{WSA881X_OTP_REG_15, 0xFF},
+	{WSA881X_OTP_REG_16, 0xFF},
+	{WSA881X_OTP_REG_17, 0xFF},
+	{WSA881X_OTP_REG_18, 0xFF},
+	{WSA881X_OTP_REG_19, 0xFF},
+	{WSA881X_OTP_REG_20, 0xFF},
+	{WSA881X_OTP_REG_21, 0xFF},
+	{WSA881X_OTP_REG_22, 0xFF},
+	{WSA881X_OTP_REG_23, 0xFF},
+	{WSA881X_OTP_REG_24, 0x03},
+	{WSA881X_OTP_REG_25, 0x01},
+	{WSA881X_OTP_REG_26, 0x03},
+	{WSA881X_OTP_REG_27, 0x11},
+	{WSA881X_OTP_REG_63, 0x40},
+	/* WSA881x Analog registers */
+	{WSA881X_BIAS_REF_CTRL, 0x6C},
+	{WSA881X_BIAS_TEST, 0x16},
+	{WSA881X_BIAS_BIAS, 0xF0},
+	{WSA881X_TEMP_OP, 0x00},
+	{WSA881X_TEMP_IREF_CTRL, 0x56},
+	{WSA881X_TEMP_ISENS_CTRL, 0x47},
+	{WSA881X_TEMP_CLK_CTRL, 0x87},
+	{WSA881X_TEMP_TEST, 0x00},
+	{WSA881X_TEMP_BIAS, 0x51},
+	{WSA881X_TEMP_DOUT_MSB, 0x00},
+	{WSA881X_TEMP_DOUT_LSB, 0x00},
+	{WSA881X_ADC_EN_MODU_V, 0x00},
+	{WSA881X_ADC_EN_MODU_I, 0x00},
+	{WSA881X_ADC_EN_DET_TEST_V, 0x00},
+	{WSA881X_ADC_EN_DET_TEST_I, 0x00},
+	{WSA881X_ADC_EN_SEL_IBAIS, 0x10},
+	{WSA881X_SPKR_DRV_EN, 0x74},
+	{WSA881X_SPKR_DRV_DBG, 0x15},
+	{WSA881X_SPKR_PWRSTG_DBG, 0x00},
+	{WSA881X_SPKR_OCP_CTL, 0xD4},
+	{WSA881X_SPKR_CLIP_CTL, 0x90},
+	{WSA881X_SPKR_PA_INT, 0x54},
+	{WSA881X_SPKR_BIAS_CAL, 0xAC},
+	{WSA881X_SPKR_STATUS1, 0x00},
+	{WSA881X_SPKR_STATUS2, 0x00},
+	{WSA881X_BOOST_EN_CTL, 0x18},
+	{WSA881X_BOOST_CURRENT_LIMIT, 0x7A},
+	{WSA881X_BOOST_PRESET_OUT2, 0x70},
+	{WSA881X_BOOST_FORCE_OUT, 0x0E},
+	{WSA881X_BOOST_LDO_PROG, 0x16},
+	{WSA881X_BOOST_SLOPE_COMP_ISENSE_FB, 0x71},
+	{WSA881X_BOOST_RON_CTL, 0x0F},
+	{WSA881X_BOOST_ZX_CTL, 0x34},
+	{WSA881X_BOOST_START_CTL, 0x23},
+	{WSA881X_BOOST_MISC1_CTL, 0x80},
+	{WSA881X_BOOST_MISC2_CTL, 0x00},
+	{WSA881X_BOOST_MISC3_CTL, 0x00},
+	{WSA881X_BOOST_ATEST_CTL, 0x00},
+	{WSA881X_SPKR_PROT_FE_GAIN, 0x46},
+	{WSA881X_SPKR_PROT_FE_CM_LDO_SET, 0x3B},
+	{WSA881X_SPKR_PROT_FE_ISENSE_BIAS_SET1, 0x8D},
+	{WSA881X_SPKR_PROT_FE_ISENSE_BIAS_SET2, 0x8D},
+	{WSA881X_SPKR_PROT_ATEST1, 0x01},
+	{WSA881X_SPKR_PROT_FE_VSENSE_VCM, 0x8D},
+	{WSA881X_SPKR_PROT_FE_VSENSE_BIAS_SET1, 0x4D},
+	{WSA881X_SPKR_PROT_SAR, 0x00},
+	{WSA881X_SPKR_STATUS3, 0x00},
+};
+
+static const struct reg_sequence wsa881x_pre_pmu_pa[] = {
+	{WSA881X_SPKR_DRV_GAIN, 0x41, 0},
+	{WSA881X_SPKR_MISC_CTL1, 0x01, 0},
+	{WSA881X_ADC_EN_DET_TEST_I, 0x01, 0},
+	{WSA881X_ADC_EN_MODU_V, 0x02, 0},
+	{WSA881X_ADC_EN_DET_TEST_V, 0x10, 0},
+	{WSA881X_SPKR_PWRSTG_DBG, 0xA0, 0},
+};
+
+static const struct reg_sequence wsa881x_pre_pmu_pa_2_0[] = {
+	{WSA881X_SPKR_DRV_GAIN, 0x41, 0},
+	{WSA881X_SPKR_MISC_CTL1, 0x87, 0},
+};
+
+static const struct reg_sequence wsa881x_post_pmu_pa[] = {
+	{WSA881X_SPKR_PWRSTG_DBG, 0x00, 0},
+	{WSA881X_ADC_EN_DET_TEST_V, 0x00, 0},
+	{WSA881X_ADC_EN_MODU_V, 0x00, 0},
+	{WSA881X_ADC_EN_DET_TEST_I, 0x00, 0},
+};
+
+static const struct reg_sequence wsa881x_vi_txfe_en[] = {
+	{WSA881X_SPKR_PROT_FE_VSENSE_VCM, 0x85, 0},
+	{WSA881X_SPKR_PROT_ATEST2, 0x0A, 0},
+	{WSA881X_SPKR_PROT_FE_GAIN, 0xCF, 0},
+};
+
+static const struct reg_sequence wsa881x_vi_txfe_en_2_0[] = {
+	{WSA881X_SPKR_PROT_FE_VSENSE_VCM, 0x85, 0},
+	{WSA881X_SPKR_PROT_ATEST2, 0x0A, 0},
+	{WSA881X_SPKR_PROT_FE_GAIN, 0x47, 0},
+};
+
+/* Default register reset values for WSA881x rev 2.0 */
+static struct reg_sequence wsa881x_rev_2_0[] = {
+	{WSA881X_RESET_CTL, 0x00, 0x00},
+	{WSA881X_TADC_VALUE_CTL, 0x01, 0x00},
+	{WSA881X_INTR_MASK, 0x1B, 0x00},
+	{WSA881X_IOPAD_CTL, 0x00, 0x00},
+	{WSA881X_OTP_REG_28, 0x3F, 0x00},
+	{WSA881X_OTP_REG_29, 0x3F, 0x00},
+	{WSA881X_OTP_REG_30, 0x01, 0x00},
+	{WSA881X_OTP_REG_31, 0x01, 0x00},
+	{WSA881X_TEMP_ADC_CTRL, 0x03, 0x00},
+	{WSA881X_ADC_SEL_IBIAS, 0x45, 0x00},
+	{WSA881X_SPKR_DRV_GAIN, 0xC1, 0x00},
+	{WSA881X_SPKR_DAC_CTL, 0x42, 0x00},
+	{WSA881X_SPKR_BBM_CTL, 0x02, 0x00},
+	{WSA881X_SPKR_MISC_CTL1, 0x40, 0x00},
+	{WSA881X_SPKR_MISC_CTL2, 0x07, 0x00},
+	{WSA881X_SPKR_BIAS_INT, 0x5F, 0x00},
+	{WSA881X_SPKR_BIAS_PSRR, 0x44, 0x00},
+	{WSA881X_BOOST_PS_CTL, 0xA0, 0x00},
+	{WSA881X_BOOST_PRESET_OUT1, 0xB7, 0x00},
+	{WSA881X_BOOST_LOOP_STABILITY, 0x8D, 0x00},
+	{WSA881X_SPKR_PROT_ATEST2, 0x02, 0x00},
+	{WSA881X_BONGO_RESRV_REG1, 0x5E, 0x00},
+	{WSA881X_BONGO_RESRV_REG2, 0x07, 0x00},
+};
+
+enum wsa_port_ids {
+	WSA881X_PORT_DAC,
+	WSA881X_PORT_COMP,
+	WSA881X_PORT_BOOST,
+	WSA881X_PORT_VISENSE,
+};
+
+/* 4 ports */
+static struct sdw_dpn_prop wsa_sink_dpn_prop[WSA881X_MAX_SWR_PORTS] = {
+	{
+		/* DAC */
+		.num = 1,
+		.type = SDW_DPN_SIMPLE,
+		.min_ch = 1,
+		.max_ch = 1,
+		.simple_ch_prep_sm = true,
+	}, {
+		/* COMP */
+		.num = 2,
+		.type = SDW_DPN_SIMPLE,
+		.min_ch = 1,
+		.max_ch = 1,
+		.simple_ch_prep_sm = true,
+	}, {
+		/* BOOST */
+		.num = 3,
+		.type = SDW_DPN_SIMPLE,
+		.min_ch = 1,
+		.max_ch = 1,
+		.simple_ch_prep_sm = true,
+	}, {
+		/* VISENSE */
+		.num = 4,
+		.type = SDW_DPN_SIMPLE,
+		.min_ch = 1,
+		.max_ch = 1,
+		.simple_ch_prep_sm = true,
+	}
+};
+
+static bool wsa881x_readable_register(struct device *dev, unsigned int reg)
+{
+	return wsa881x_reg_readable[reg];
+}
+
+static bool wsa881x_volatile_register(struct device *dev, unsigned int reg)
+{
+	switch (reg) {
+	case WSA881X_CHIP_ID0:
+	case WSA881X_CHIP_ID1:
+	case WSA881X_CHIP_ID2:
+	case WSA881X_CHIP_ID3:
+	case WSA881X_BUS_ID:
+	case WSA881X_TEMP_MSB:
+	case WSA881X_TEMP_LSB:
+	case WSA881X_SDM_PDM9_LSB:
+	case WSA881X_SDM_PDM9_MSB:
+	case WSA881X_OTP_CTRL1:
+	case WSA881X_INTR_STATUS:
+	case WSA881X_ATE_TEST_MODE:
+	case WSA881X_PIN_STATUS:
+	case WSA881X_SWR_HM_TEST2:
+	case WSA881X_SPKR_STATUS1:
+	case WSA881X_SPKR_STATUS2:
+	case WSA881X_SPKR_STATUS3:
+	case WSA881X_OTP_REG_0:
+	case WSA881X_OTP_REG_1:
+	case WSA881X_OTP_REG_2:
+	case WSA881X_OTP_REG_3:
+	case WSA881X_OTP_REG_4:
+	case WSA881X_OTP_REG_5:
+	case WSA881X_OTP_REG_31:
+	case WSA881X_TEMP_DOUT_MSB:
+	case WSA881X_TEMP_DOUT_LSB:
+	case WSA881X_TEMP_OP:
+	case WSA881X_SPKR_PROT_SAR:
+		return true;
+	default:
+		return false;
+	}
+}
+
+static struct regmap_config wsa881x_regmap_config = {
+	.reg_bits = 32,
+	.val_bits = 8,
+	.cache_type = REGCACHE_RBTREE,
+	.reg_defaults = wsa881x_defaults,
+	.num_reg_defaults = ARRAY_SIZE(wsa881x_defaults),
+	.max_register = WSA881X_MAX_REGISTER,
+	.volatile_reg = wsa881x_volatile_register,
+	.readable_reg = wsa881x_readable_register,
+	.reg_format_endian = REGMAP_ENDIAN_NATIVE,
+	.val_format_endian = REGMAP_ENDIAN_NATIVE,
+	.can_multi_write = true,
+};
+
+enum {
+	G_18DB = 0,
+	G_16P5DB,
+	G_15DB,
+	G_13P5DB,
+	G_12DB,
+	G_10P5DB,
+	G_9DB,
+	G_7P5DB,
+	G_6DB,
+	G_4P5DB,
+	G_3DB,
+	G_1P5DB,
+	G_0DB,
+};
+
+/*
+ * Private data Structure for wsa881x. All parameters related to
+ * WSA881X codec needs to be defined here.
+ */
+struct wsa881x_priv {
+	struct regmap *regmap;
+	struct device *dev;
+	struct sdw_slave *slave;
+	struct gpio_desc *sd_n;
+	int bg_cnt;
+	int clk_cnt;
+	int version;
+	/* bandgap lock */
+	struct mutex bg_lock;
+	/* clk resource lock */
+	struct mutex res_lock;
+	bool port_prepared[WSA881X_MAX_SWR_PORTS];
+	u8 pa_gain;
+};
+
+static void wsa881x_init(struct wsa881x_priv *wsa881x)
+{
+	struct regmap *rm = wsa881x->regmap;
+	unsigned int val = 0;
+
+	regmap_read(rm, WSA881X_CHIP_ID1, &wsa881x->version);
+	regcache_cache_only(rm, true);
+	regmap_multi_reg_write(rm, wsa881x_rev_2_0,
+			       ARRAY_SIZE(wsa881x_rev_2_0));
+	regcache_cache_only(rm, false);
+	/* Enable software reset output from soundwire slave */
+	regmap_update_bits(rm, WSA881X_SWR_RESET_EN, 0x07, 0x07);
+	/* Bring out of analog reset */
+	regmap_update_bits(rm, WSA881X_CDC_RST_CTL, 0x02, 0x02);
+	/* Bring out of digital reset */
+	regmap_update_bits(rm, WSA881X_CDC_RST_CTL, 0x01, 0x01);
+	regmap_update_bits(rm, WSA881X_CLOCK_CONFIG, 0x10, 0x10);
+	regmap_update_bits(rm, WSA881X_SPKR_OCP_CTL, 0x02, 0x02);
+	regmap_update_bits(rm, WSA881X_SPKR_MISC_CTL1, 0xC0, 0x80);
+	regmap_update_bits(rm, WSA881X_SPKR_MISC_CTL1, 0x06, 0x06);
+	regmap_update_bits(rm, WSA881X_SPKR_BIAS_INT, 0xFF, 0x00);
+	regmap_update_bits(rm, WSA881X_SPKR_PA_INT, 0xF0, 0x40);
+	regmap_update_bits(rm, WSA881X_SPKR_PA_INT, 0x0E, 0x0E);
+	regmap_update_bits(rm, WSA881X_BOOST_LOOP_STABILITY, 0x03, 0x03);
+	regmap_update_bits(rm, WSA881X_BOOST_MISC2_CTL, 0xFF, 0x14);
+	regmap_update_bits(rm, WSA881X_BOOST_START_CTL, 0x80, 0x80);
+	regmap_update_bits(rm, WSA881X_BOOST_START_CTL, 0x03, 0x00);
+	regmap_update_bits(rm, WSA881X_BOOST_SLOPE_COMP_ISENSE_FB, 0x0C, 0x04);
+	regmap_update_bits(rm, WSA881X_BOOST_SLOPE_COMP_ISENSE_FB, 0x03, 0x00);
+
+	regmap_read(rm, WSA881X_OTP_REG_0, &val);
+	if (val)
+		regmap_update_bits(rm, WSA881X_BOOST_PRESET_OUT1, 0xF0, 0x70);
+
+	regmap_update_bits(rm, WSA881X_BOOST_PRESET_OUT2, 0xF0, 0x30);
+	regmap_update_bits(rm, WSA881X_SPKR_DRV_EN, 0x08, 0x08);
+	regmap_update_bits(rm, WSA881X_BOOST_CURRENT_LIMIT, 0x0F, 0x08);
+	regmap_update_bits(rm, WSA881X_SPKR_OCP_CTL, 0x30, 0x30);
+	regmap_update_bits(rm, WSA881X_SPKR_OCP_CTL, 0x0C, 0x00);
+	regmap_update_bits(rm, WSA881X_OTP_REG_28, 0x3F, 0x3A);
+	regmap_update_bits(rm, WSA881X_BONGO_RESRV_REG1, 0xFF, 0xB2);
+	regmap_update_bits(rm, WSA881X_BONGO_RESRV_REG2, 0xFF, 0x05);
+}
+
+static int wsa881x_component_probe(struct snd_soc_component *comp)
+{
+	struct wsa881x_priv *wsa881x = snd_soc_component_get_drvdata(comp);
+
+	snd_soc_component_init_regmap(comp, wsa881x->regmap);
+	mutex_init(&wsa881x->bg_lock);
+	mutex_init(&wsa881x->res_lock);
+	wsa881x->bg_cnt = 0;
+	wsa881x->clk_cnt = 0;
+
+	return 0;
+}
+
+static int wsa881x_put_pa_gain(struct snd_kcontrol *kc,
+			       struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_soc_component *comp = snd_soc_kcontrol_component(kc);
+	struct wsa881x_priv *wsa881x = snd_soc_component_get_drvdata(comp);
+	struct soc_mixer_control *mc =
+			(struct soc_mixer_control *)kc->private_value;
+	int max = mc->max;
+	unsigned int mask = (1 << fls(max)) - 1;
+
+	/*
+	 * program actual register just before compander enable and ensure hw
+	 * sequence is followed
+	 */
+	wsa881x->pa_gain = (max - ucontrol->value.integer.value[0]) & mask;
+
+	return 0;
+}
+
+static const char * const smart_boost_lvl_text[] = {
+	"6.625 V", "6.750 V", "6.875 V", "7.000 V",
+	"7.125 V", "7.250 V", "7.375 V", "7.500 V",
+	"7.625 V", "7.750 V", "7.875 V", "8.000 V",
+	"8.125 V", "8.250 V", "8.375 V", "8.500 V"
+};
+
+static const struct soc_enum smart_boost_lvl_enum =
+	SOC_ENUM_SINGLE(WSA881X_BOOST_PRESET_OUT1, 0,
+			ARRAY_SIZE(smart_boost_lvl_text),
+			smart_boost_lvl_text);
+
+static const DECLARE_TLV_DB_SCALE(pa_gain, 0, 150, 0);
+
+static const struct snd_kcontrol_new wsa881x_snd_controls[] = {
+	SOC_ENUM("Smart Boost Level", smart_boost_lvl_enum),
+	WSA881X_PA_GAIN_TLV("PA Gain", WSA881X_SPKR_DRV_GAIN,
+			    4, 0xC, 1, pa_gain),
+	SOC_SINGLE("PA Mute Switch", WSA881X_SPKR_DRV_EN, 7, 1, 1),
+};
+
+static const struct snd_soc_dapm_route wsa881x_audio_map[] = {
+	{"RDAC", NULL, "IN"},
+	{"SPKR PGA", NULL, "RDAC"},
+	{"SPKR", NULL, "SPKR PGA"},
+};
+
+static void wsa881x_clk_ctrl(struct snd_soc_component *comp, bool enable)
+{
+	struct wsa881x_priv *wsa881x = snd_soc_component_get_drvdata(comp);
+
+	mutex_lock(&wsa881x->res_lock);
+	if (enable) {
+		++wsa881x->clk_cnt;
+		if (wsa881x->clk_cnt == 1) {
+			snd_soc_component_write(comp,
+						WSA881X_CDC_DIG_CLK_CTL,
+						enable);
+			snd_soc_component_write(comp,
+						WSA881X_CDC_ANA_CLK_CTL,
+						enable);
+		}
+	} else {
+		--wsa881x->clk_cnt;
+		if (wsa881x->clk_cnt <= 0) {
+			WARN_ON(wsa881x->clk_cnt < 0);
+			wsa881x->clk_cnt = 0;
+			snd_soc_component_write(comp,
+						WSA881X_CDC_DIG_CLK_CTL,
+						enable);
+			snd_soc_component_write(comp,
+						WSA881X_CDC_ANA_CLK_CTL,
+						enable);
+		}
+	}
+	mutex_unlock(&wsa881x->res_lock);
+}
+
+static void wsa881x_bandgap_ctrl(struct snd_soc_component *comp, bool enable)
+{
+	struct wsa881x_priv *wsa881x = snd_soc_component_get_drvdata(comp);
+
+	mutex_lock(&wsa881x->bg_lock);
+	if (enable) {
+		++wsa881x->bg_cnt;
+		if (wsa881x->bg_cnt == 1) {
+			snd_soc_component_update_bits(comp, WSA881X_TEMP_OP,
+						      0x08, 0x08);
+			/* 400usec sleep is needed as per HW requirement */
+			usleep_range(400, 410);
+			snd_soc_component_update_bits(comp, WSA881X_TEMP_OP,
+						      0x04, 0x04);
+		}
+	} else {
+		--wsa881x->bg_cnt;
+		if (wsa881x->bg_cnt <= 0) {
+			WARN_ON(wsa881x->bg_cnt < 0);
+			wsa881x->bg_cnt = 0;
+			snd_soc_component_update_bits(comp, WSA881X_TEMP_OP,
+						      0x04, 0x00);
+			snd_soc_component_update_bits(comp, WSA881X_TEMP_OP,
+						      0x08, 0x00);
+		}
+	}
+	mutex_unlock(&wsa881x->bg_lock);
+}
+
+static int wsa881x_boost_ctrl(struct snd_soc_component *comp, bool enable)
+{
+	if (enable)
+		snd_soc_component_update_bits(comp, WSA881X_BOOST_EN_CTL,
+					      0x80, 0x80);
+	else
+		snd_soc_component_update_bits(comp, WSA881X_BOOST_EN_CTL,
+					      0x80, 0x00);
+	/*
+	 * 1.5ms sleep is needed after boost enable/disable as per
+	 * HW requirement
+	 */
+	usleep_range(1500, 1510);
+	return 0;
+}
+
+static int32_t wsa881x_resource_acquire(struct snd_soc_component *comp,
+					bool enable)
+{
+	wsa881x_clk_ctrl(comp, enable);
+	wsa881x_bandgap_ctrl(comp, enable);
+
+	return 0;
+}
+
+static int wsa881x_rdac_event(struct snd_soc_dapm_widget *w,
+			      struct snd_kcontrol *kcontrol, int event)
+{
+	struct snd_soc_component *comp = snd_soc_dapm_to_component(w->dapm);
+
+	switch (event) {
+	case SND_SOC_DAPM_PRE_PMU:
+		wsa881x_resource_acquire(comp, true);
+		wsa881x_boost_ctrl(comp, true);
+		break;
+	case SND_SOC_DAPM_POST_PMD:
+		wsa881x_boost_ctrl(comp, false);
+		wsa881x_resource_acquire(comp, false);
+		break;
+	}
+	return 0;
+}
+
+static int wsa881x_ramp_pa_gain(struct snd_soc_component *comp,
+				int min_gain, int max_gain, int udelay)
+{
+	int val;
+
+	for (val = min_gain; max_gain <= val; val--) {
+		snd_soc_component_update_bits(comp, WSA881X_SPKR_DRV_GAIN,
+					      0xF0, val << 4);
+		/*
+		 * 1ms delay is needed for every step change in gain as per
+		 * HW requirement.
+		 */
+		usleep_range(udelay, udelay + 10);
+	}
+	return 0;
+}
+
+static int wsa881x_visense_txfe_ctrl(struct snd_soc_component *comp,
+				     bool enable, u8 isense1_gain,
+				     u8 isense2_gain,
+				     u8 vsense_gain)
+{
+	struct wsa881x_priv *wsa881x = snd_soc_component_get_drvdata(comp);
+
+	if (enable) {
+		regmap_multi_reg_write(wsa881x->regmap,
+				       wsa881x_vi_txfe_en_2_0,
+				ARRAY_SIZE(wsa881x_vi_txfe_en_2_0));
+	} else {
+		snd_soc_component_update_bits(comp,
+					      WSA881X_SPKR_PROT_FE_VSENSE_VCM,
+					      0x08, 0x08);
+		/*
+		 * 200us sleep is needed after visense txfe disable as per
+		 * HW requirement.
+		 */
+		usleep_range(200, 210);
+		snd_soc_component_update_bits(comp, WSA881X_SPKR_PROT_FE_GAIN,
+					      0x01, 0x00);
+	}
+	return 0;
+}
+
+static int wsa881x_visense_adc_ctrl(struct snd_soc_component *comp,
+				    bool enable)
+{
+	snd_soc_component_update_bits(comp, WSA881X_ADC_EN_MODU_V, (0x01 << 7),
+				      (enable << 7));
+	snd_soc_component_update_bits(comp, WSA881X_ADC_EN_MODU_I, (0x01 << 7),
+				      (enable << 7));
+	return 0;
+}
+
+static int wsa881x_spkr_pa_event(struct snd_soc_dapm_widget *w,
+				 struct snd_kcontrol *kcontrol, int event)
+{
+	struct snd_soc_component *comp = snd_soc_dapm_to_component(w->dapm);
+	struct wsa881x_priv *wsa881x = snd_soc_component_get_drvdata(comp);
+	int min_gain, max_gain;
+
+	dev_err(comp->dev, "%s: %s %d\n", __func__, w->name, event);
+
+	switch (event) {
+	case SND_SOC_DAPM_PRE_PMU:
+		snd_soc_component_update_bits(comp, WSA881X_SPKR_OCP_CTL,
+					      0xC0, 0x80);
+		regmap_multi_reg_write(wsa881x->regmap,
+				       wsa881x_pre_pmu_pa_2_0,
+				ARRAY_SIZE(wsa881x_pre_pmu_pa_2_0));
+
+		/* Set register mode if compander is not enabled */
+		if (!wsa881x->port_prepared[WSA881X_PORT_COMP])
+			snd_soc_component_update_bits(comp,
+						      WSA881X_SPKR_DRV_GAIN,
+						      0x08, 0x08);
+		else
+			snd_soc_component_update_bits(comp,
+						      WSA881X_SPKR_DRV_GAIN,
+						      0x08, 0x00);
+		break;
+	case SND_SOC_DAPM_POST_PMU:
+		if (!wsa881x->port_prepared[WSA881X_PORT_COMP]) {
+			max_gain = wsa881x->pa_gain;
+			/*
+			 * Gain has to set incrementally in 4 steps
+			 * as per HW sequence
+			 */
+			if (max_gain > G_4P5DB)
+				min_gain = G_0DB;
+			else
+				min_gain = max_gain + 3;
+			/*
+			 * 1ms delay is needed before change in gain
+			 * as per HW requirement.
+			 */
+			usleep_range(1000, 1010);
+			wsa881x_ramp_pa_gain(comp, min_gain, max_gain, 1000);
+		}
+
+		if (wsa881x->port_prepared[WSA881X_PORT_VISENSE]) {
+			wsa881x_visense_txfe_ctrl(comp, true,
+						  0x00, 0x03, 0x01);
+			snd_soc_component_update_bits(comp,
+						      WSA881X_ADC_EN_SEL_IBAIS,
+						      0x07, 0x01);
+			wsa881x_visense_adc_ctrl(comp, true);
+		}
+
+		break;
+	case SND_SOC_DAPM_POST_PMD:
+		if (wsa881x->port_prepared[WSA881X_PORT_VISENSE]) {
+			wsa881x_visense_adc_ctrl(comp, false);
+			wsa881x_visense_txfe_ctrl(comp, false,
+						  0x00, 0x01, 0x01);
+		}
+
+		snd_soc_component_update_bits(comp, WSA881X_SPKR_OCP_CTL,
+					      0xC0, 0xC0);
+		break;
+	}
+	return 0;
+}
+
+static const struct snd_soc_dapm_widget wsa881x_dapm_widgets[] = {
+	SND_SOC_DAPM_INPUT("IN"),
+	SND_SOC_DAPM_DAC_E("RDAC", NULL, WSA881X_SPKR_DAC_CTL, 7, 0,
+			   wsa881x_rdac_event,
+			   SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD),
+	SND_SOC_DAPM_PGA_E("SPKR PGA", WSA881X_SPKR_DRV_EN, 7, 0, NULL, 0,
+			   wsa881x_spkr_pa_event, SND_SOC_DAPM_PRE_PMU |
+			   SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD),
+	SND_SOC_DAPM_OUTPUT("SPKR"),
+};
+
+static void wsa881x_component_remove(struct snd_soc_component *comp)
+{
+	struct wsa881x_priv *wsa881x = snd_soc_component_get_drvdata(comp);
+
+	mutex_destroy(&wsa881x->bg_lock);
+	mutex_destroy(&wsa881x->res_lock);
+}
+
+static const struct snd_soc_component_driver wsa881x_component_drv = {
+	.probe = wsa881x_component_probe,
+	.controls = wsa881x_snd_controls,
+	.num_controls = ARRAY_SIZE(wsa881x_snd_controls),
+	.remove = wsa881x_component_remove,
+	.dapm_widgets = wsa881x_dapm_widgets,
+	.num_dapm_widgets = ARRAY_SIZE(wsa881x_dapm_widgets),
+	.dapm_routes = wsa881x_audio_map,
+	.num_dapm_routes = ARRAY_SIZE(wsa881x_audio_map),
+};
+
+static int wsa881x_update_status(struct sdw_slave *slave,
+				 enum sdw_slave_status status)
+{
+	struct wsa881x_priv *wsa881x = dev_get_drvdata(&slave->dev);
+
+	if (status == SDW_SLAVE_ATTACHED && slave->dev_num > 0)
+		wsa881x_init(wsa881x);
+
+	return 0;
+}
+
+static int wsa881x_port_prep(struct sdw_slave *slave,
+			     struct sdw_prepare_ch *prepare_ch,
+			     enum sdw_port_prep_ops state)
+{
+	struct wsa881x_priv *wsa881x = dev_get_drvdata(&slave->dev);
+
+	if (state == SDW_OPS_PORT_POST_PREP)
+		wsa881x->port_prepared[prepare_ch->num - 1] = true;
+	else
+		wsa881x->port_prepared[prepare_ch->num - 1] = false;
+
+	return 0;
+}
+
+static int wsa881x_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 struct sdw_slave_ops wsa881x_slave_ops = {
+	.update_status = wsa881x_update_status,
+	.bus_config = wsa881x_bus_config,
+	.port_prep = wsa881x_port_prep,
+};
+
+static int wsa881x_probe(struct sdw_slave *pdev,
+			 const struct sdw_device_id *id)
+{
+	struct wsa881x_priv *wsa881x;
+
+	wsa881x = devm_kzalloc(&pdev->dev, sizeof(*wsa881x), GFP_KERNEL);
+	if (!wsa881x)
+		return -ENOMEM;
+
+	wsa881x->sd_n = devm_gpiod_get_optional(&pdev->dev, "pd",
+						GPIOD_FLAGS_BIT_NONEXCLUSIVE);
+	if (IS_ERR(wsa881x->sd_n)) {
+		dev_err(&pdev->dev, "Shutdown Control GPIO not found\n");
+		return PTR_ERR(wsa881x->sd_n);
+	}
+
+	dev_set_drvdata(&pdev->dev, wsa881x);
+	wsa881x->slave = pdev;
+	wsa881x->dev = &pdev->dev;
+	pdev->prop.sink_ports = GENMASK(WSA881X_MAX_SWR_PORTS, 0);
+	pdev->prop.sink_dpn_prop = wsa_sink_dpn_prop;
+	gpiod_set_value(wsa881x->sd_n, 1);
+
+	wsa881x->regmap = devm_regmap_init_sdw(pdev, &wsa881x_regmap_config);
+	if (IS_ERR(wsa881x->regmap)) {
+		dev_err(&pdev->dev, "regmap_init failed\n");
+		return PTR_ERR(wsa881x->regmap);
+	}
+
+	return devm_snd_soc_register_component(&pdev->dev,
+					       &wsa881x_component_drv, NULL, 0);
+}
+
+static const struct sdw_device_id wsa881x_slave_id[] = {
+	SDW_SLAVE_ENTRY(0x0217, 0x2010, 0),
+	{},
+};
+MODULE_DEVICE_TABLE(sdw, wsa881x_slave_id);
+
+static struct sdw_driver wsa881x_codec_driver = {
+	.probe	= wsa881x_probe,
+	.ops = &wsa881x_slave_ops,
+	.id_table = wsa881x_slave_id,
+	.driver = {
+		.name	= "wsa881x-codec",
+	}
+};
+module_sdw_driver(wsa881x_codec_driver);
+
+MODULE_DESCRIPTION("WSA881x codec driver");
+MODULE_LICENSE("GPL v2");
-- 
2.21.0

Re: [PATCH v3 4/4] ASoC: codecs: add wsa881x amplifier support

[kbuild test robot]

[-- Attachment #1: Type: text/plain, Size: 1392 bytes --]

Hi Srinivas,

I love your patch! Yet something to improve:

[auto build test ERROR on linus/master]
[cannot apply to v5.3-rc4 next-20190809]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

url:    https://github.com/0day-ci/linux/commits/Srinivas-Kandagatla/ASoC-codecs-Add-WSA881x-Smart-Speaker-amplifier-support/20190812-080612
config: m68k-allmodconfig (attached as .config)
compiler: m68k-linux-gcc (GCC) 7.4.0
reproduce:
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # save the attached .config to linux build tree
        GCC_VERSION=7.4.0 make.cross ARCH=m68k 

If you fix the issue, kindly add following tag
Reported-by: kbuild test robot <lkp@intel.com>

All errors (new ones prefixed by >>):

>> ERROR: "sdw_unregister_driver" [sound/soc/codecs/snd-soc-wsa881x.ko] undefined!
>> ERROR: "sdw_write" [sound/soc/codecs/snd-soc-wsa881x.ko] undefined!
>> ERROR: "__sdw_register_driver" [sound/soc/codecs/snd-soc-wsa881x.ko] undefined!
>> ERROR: "sdw_write" [drivers/base/regmap/regmap-sdw.ko] undefined!
>> ERROR: "sdw_read" [drivers/base/regmap/regmap-sdw.ko] undefined!

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation

[-- Attachment #2: .config.gz --]
[-- Type: application/gzip, Size: 50926 bytes --]

Re: [PATCH v3 4/4] ASoC: codecs: add wsa881x amplifier support

[Srinivas Kandagatla]

Thanks for reporting this,

On 12/08/2019 03:46, kbuild test robot wrote:
> Hi Srinivas,
> 
> I love your patch! Yet something to improve:
> 
> [auto build test ERROR on linus/master]
> [cannot apply to v5.3-rc4 next-20190809]
> [if your patch is applied to the wrong git tree, please drop us a note to help improve the system]
> 
> url:    https://github.com/0day-ci/linux/commits/Srinivas-Kandagatla/ASoC-codecs-Add-WSA881x-Smart-Speaker-amplifier-support/20190812-080612
> config: m68k-allmodconfig (attached as .config)
> compiler: m68k-linux-gcc (GCC) 7.4.0
> reproduce:
>          wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
>          chmod +x ~/bin/make.cross
>          # save the attached .config to linux build tree
>          GCC_VERSION=7.4.0 make.cross ARCH=m68k
> 
> If you fix the issue, kindly add following tag
> Reported-by: kbuild test robot <lkp@intel.com>
> 
> All errors (new ones prefixed by >>):
> 
>>> ERROR: "sdw_unregister_driver" [sound/soc/codecs/snd-soc-wsa881x.ko] undefined!
>>> ERROR: "sdw_write" [sound/soc/codecs/snd-soc-wsa881x.ko] undefined!
>>> ERROR: "__sdw_register_driver" [sound/soc/codecs/snd-soc-wsa881x.ko] undefined!
>>> ERROR: "sdw_write" [drivers/base/regmap/regmap-sdw.ko] undefined!
>>> ERROR: "sdw_read" [drivers/base/regmap/regmap-sdw.ko] undefined!
> 


There are changes in SoundWire Kconfigs 
(https://git.kernel.org/pub/scm/linux/kernel/git/vkoul/soundwire.git/commit/?h=fixes&id=8676b3ca4673517650fd509d7fa586aff87b3c28) 
which are not available in linux/master yet so this error!

Once this patch lands then below errors should disappear.


thanks,
srini
> ---
> 0-DAY kernel test infrastructure                Open Source Technology Center
> https://lists.01.org/pipermail/kbuild-all                   Intel Corporation
>