[PATCH 0/2] ADRF5702/ADRF5703 Digital Attenuator support

[PATCH 0/2] ADRF5702/ADRF5703 Digital Attenuator support

[Rodrigo Alencar via B4 Relay]

This is a small patch series that adds support for two extra attenuators.
Basically, new chip info and device table entries are added into the
AD8366 IIO driver.

Signed-off-by: Rodrigo Alencar <rodrigo.alencar@analog.com>
---
Rodrigo Alencar (2):
      dt-bindings: iio: amplifiers: ad8366: add adrf5702/3 support
      iio: amplifiers: ad8366: add support for adrf5702/3

 .../bindings/iio/amplifiers/adi,ad8366.yaml        |  4 ++++
 drivers/iio/amplifiers/Kconfig                     |  2 ++
 drivers/iio/amplifiers/ad8366.c                    | 22 ++++++++++++++++++++++
 3 files changed, 28 insertions(+)
---
base-commit: af980a79bfed43c4a0be12cca786be46f1a0c5e8
change-id: 20260325-adrf570x-iio-support-e199418fba40

Best regards,
-- 
Rodrigo Alencar <rodrigo.alencar@analog.com>

[PATCH 1/2] dt-bindings: iio: amplifiers: ad8366: add adrf5702/3 support

[Rodrigo Alencar via B4 Relay]

From: Rodrigo Alencar <rodrigo.alencar@analog.com>

Add compatible entries for ADRF5702 and ADRF5703 Digital Attenuators.

Signed-off-by: Rodrigo Alencar <rodrigo.alencar@analog.com>
---
 Documentation/devicetree/bindings/iio/amplifiers/adi,ad8366.yaml | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/Documentation/devicetree/bindings/iio/amplifiers/adi,ad8366.yaml b/Documentation/devicetree/bindings/iio/amplifiers/adi,ad8366.yaml
index 2719de1166a1..065637ce33a5 100644
--- a/Documentation/devicetree/bindings/iio/amplifiers/adi,ad8366.yaml
+++ b/Documentation/devicetree/bindings/iio/amplifiers/adi,ad8366.yaml
@@ -20,6 +20,8 @@ properties:
       - adi,ad8366
       - adi,ada4961
       - adi,adl5240
+      - adi,adrf5702
+      - adi,adrf5703
       - adi,adrf5720
       - adi,adrf5730
       - adi,adrf5731
@@ -66,6 +68,8 @@ allOf:
               anyOf:
                 - const: adi,ad8366
                 - const: adi,ada4961
+                - const: adi,adrf5702
+                - const: adi,adrf5703
                 - const: adi,adrf5720
                 - const: adi,adrf5730
                 - const: adi,adrf5731

-- 
2.43.0

Re: [PATCH 1/2] dt-bindings: iio: amplifiers: ad8366: add adrf5702/3 support

[Jonathan Cameron]

On Wed, 25 Mar 2026 11:12:02 +0000
Rodrigo Alencar via B4 Relay <devnull+rodrigo.alencar.analog.com@kernel.org> wrote:

> From: Rodrigo Alencar <rodrigo.alencar@analog.com>
> 
> Add compatible entries for ADRF5702 and ADRF5703 Digital Attenuators.

Explain how they are different from the existing supported devices.

Something simple like the "Each device has its own gain range and step,
hence no fallback compatibles are used." that you had in the original patch
is what we need here.

> 
> Signed-off-by: Rodrigo Alencar <rodrigo.alencar@analog.com>
> ---
>  Documentation/devicetree/bindings/iio/amplifiers/adi,ad8366.yaml | 4 ++++
>  1 file changed, 4 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/iio/amplifiers/adi,ad8366.yaml b/Documentation/devicetree/bindings/iio/amplifiers/adi,ad8366.yaml
> index 2719de1166a1..065637ce33a5 100644
> --- a/Documentation/devicetree/bindings/iio/amplifiers/adi,ad8366.yaml
> +++ b/Documentation/devicetree/bindings/iio/amplifiers/adi,ad8366.yaml
> @@ -20,6 +20,8 @@ properties:
>        - adi,ad8366
>        - adi,ada4961
>        - adi,adl5240
> +      - adi,adrf5702
> +      - adi,adrf5703
>        - adi,adrf5720
>        - adi,adrf5730
>        - adi,adrf5731
> @@ -66,6 +68,8 @@ allOf:
>                anyOf:
>                  - const: adi,ad8366
>                  - const: adi,ada4961
> +                - const: adi,adrf5702
> +                - const: adi,adrf5703
>                  - const: adi,adrf5720
>                  - const: adi,adrf5730
>                  - const: adi,adrf5731
> 

Re: [PATCH 1/2] dt-bindings: iio: amplifiers: ad8366: add adrf5702/3 support

[Conor Dooley]

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On Wed, Mar 25, 2026 at 12:46:27PM +0000, Jonathan Cameron wrote:
> On Wed, 25 Mar 2026 11:12:02 +0000
> Rodrigo Alencar via B4 Relay <devnull+rodrigo.alencar.analog.com@kernel.org> wrote:
> 
> > From: Rodrigo Alencar <rodrigo.alencar@analog.com>
> > 
> > Add compatible entries for ADRF5702 and ADRF5703 Digital Attenuators.
> 
> Explain how they are different from the existing supported devices.
> 
> Something simple like the "Each device has its own gain range and step,
> hence no fallback compatibles are used." that you had in the original patch
> is what we need here.

Which means that this is a v2 that doesn't say it is a v2, or explain
what has changed?

> 
> > 
> > Signed-off-by: Rodrigo Alencar <rodrigo.alencar@analog.com>
> > ---
> >  Documentation/devicetree/bindings/iio/amplifiers/adi,ad8366.yaml | 4 ++++
> >  1 file changed, 4 insertions(+)
> > 
> > diff --git a/Documentation/devicetree/bindings/iio/amplifiers/adi,ad8366.yaml b/Documentation/devicetree/bindings/iio/amplifiers/adi,ad8366.yaml
> > index 2719de1166a1..065637ce33a5 100644
> > --- a/Documentation/devicetree/bindings/iio/amplifiers/adi,ad8366.yaml
> > +++ b/Documentation/devicetree/bindings/iio/amplifiers/adi,ad8366.yaml
> > @@ -20,6 +20,8 @@ properties:
> >        - adi,ad8366
> >        - adi,ada4961
> >        - adi,adl5240
> > +      - adi,adrf5702
> > +      - adi,adrf5703
> >        - adi,adrf5720
> >        - adi,adrf5730
> >        - adi,adrf5731
> > @@ -66,6 +68,8 @@ allOf:
> >                anyOf:
> >                  - const: adi,ad8366
> >                  - const: adi,ada4961
> > +                - const: adi,adrf5702
> > +                - const: adi,adrf5703
> >                  - const: adi,adrf5720
> >                  - const: adi,adrf5730
> >                  - const: adi,adrf5731
> > 
> 

pw-bot: changes-requested

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Re: [PATCH 1/2] dt-bindings: iio: amplifiers: ad8366: add adrf5702/3 support

[Jonathan Cameron]

On Wed, 25 Mar 2026 18:13:45 +0000
Conor Dooley <conor@kernel.org> wrote:

> On Wed, Mar 25, 2026 at 12:46:27PM +0000, Jonathan Cameron wrote:
> > On Wed, 25 Mar 2026 11:12:02 +0000
> > Rodrigo Alencar via B4 Relay <devnull+rodrigo.alencar.analog.com@kernel.org> wrote:
> >   
> > > From: Rodrigo Alencar <rodrigo.alencar@analog.com>
> > > 
> > > Add compatible entries for ADRF5702 and ADRF5703 Digital Attenuators.  
> > 
> > Explain how they are different from the existing supported devices.
> > 
> > Something simple like the "Each device has its own gain range and step,
> > hence no fallback compatibles are used." that you had in the original patch
> > is what we need here.  
> 
> Which means that this is a v2 that doesn't say it is a v2, or explain
> what has changed?

I meant the original driver - which only landed recently and answered
the question of difference nicely.

This is adding more parts to that - but I believe is a v1.

J
> 
> >   
> > > 
> > > Signed-off-by: Rodrigo Alencar <rodrigo.alencar@analog.com>
> > > ---
> > >  Documentation/devicetree/bindings/iio/amplifiers/adi,ad8366.yaml | 4 ++++
> > >  1 file changed, 4 insertions(+)
> > > 
> > > diff --git a/Documentation/devicetree/bindings/iio/amplifiers/adi,ad8366.yaml b/Documentation/devicetree/bindings/iio/amplifiers/adi,ad8366.yaml
> > > index 2719de1166a1..065637ce33a5 100644
> > > --- a/Documentation/devicetree/bindings/iio/amplifiers/adi,ad8366.yaml
> > > +++ b/Documentation/devicetree/bindings/iio/amplifiers/adi,ad8366.yaml
> > > @@ -20,6 +20,8 @@ properties:
> > >        - adi,ad8366
> > >        - adi,ada4961
> > >        - adi,adl5240
> > > +      - adi,adrf5702
> > > +      - adi,adrf5703
> > >        - adi,adrf5720
> > >        - adi,adrf5730
> > >        - adi,adrf5731
> > > @@ -66,6 +68,8 @@ allOf:
> > >                anyOf:
> > >                  - const: adi,ad8366
> > >                  - const: adi,ada4961
> > > +                - const: adi,adrf5702
> > > +                - const: adi,adrf5703
> > >                  - const: adi,adrf5720
> > >                  - const: adi,adrf5730
> > >                  - const: adi,adrf5731
> > >   
> >   
> 
> pw-bot: changes-requested

Re: [PATCH 1/2] dt-bindings: iio: amplifiers: ad8366: add adrf5702/3 support

[Conor Dooley]

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On Wed, Mar 25, 2026 at 07:19:53PM +0000, Jonathan Cameron wrote:
> On Wed, 25 Mar 2026 18:13:45 +0000
> Conor Dooley <conor@kernel.org> wrote:
> 
> > On Wed, Mar 25, 2026 at 12:46:27PM +0000, Jonathan Cameron wrote:
> > > On Wed, 25 Mar 2026 11:12:02 +0000
> > > Rodrigo Alencar via B4 Relay <devnull+rodrigo.alencar.analog.com@kernel.org> wrote:
> > >   
> > > > From: Rodrigo Alencar <rodrigo.alencar@analog.com>
> > > > 
> > > > Add compatible entries for ADRF5702 and ADRF5703 Digital Attenuators.  
> > > 
> > > Explain how they are different from the existing supported devices.
> > > 
> > > Something simple like the "Each device has its own gain range and step,
> > > hence no fallback compatibles are used." that you had in the original patch
> > > is what we need here.  
> > 
> > Which means that this is a v2 that doesn't say it is a v2, or explain
> > what has changed?
> 
> I meant the original driver - which only landed recently and answered
> the question of difference nicely.

Ah I see. Wording confused me!

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[PATCH 2/2] iio: amplifiers: ad8366: add support for adrf5702/3

[Rodrigo Alencar via B4 Relay]

From: Rodrigo Alencar <rodrigo.alencar@analog.com>

Add chip info structs and device table entries for ADRF5702 and ADRF5703
Digital Step Attenuators.

Signed-off-by: Rodrigo Alencar <rodrigo.alencar@analog.com>
---
 drivers/iio/amplifiers/Kconfig  |  2 ++
 drivers/iio/amplifiers/ad8366.c | 22 ++++++++++++++++++++++
 2 files changed, 24 insertions(+)

diff --git a/drivers/iio/amplifiers/Kconfig b/drivers/iio/amplifiers/Kconfig
index 39d280d4d437..9e24421b5e97 100644
--- a/drivers/iio/amplifiers/Kconfig
+++ b/drivers/iio/amplifiers/Kconfig
@@ -18,6 +18,8 @@ config AD8366
 	    AD8366 Dual-Digital Variable Gain Amplifier (VGA)
 	    ADA4961 BiCMOS RF Digital Gain Amplifier (DGA)
 	    ADL5240 Digitally controlled variable gain amplifier (VGA)
+	    ADRF5702: 0.125 dB LSB, 8-Bit, Silicon Digital Attenuator
+	    ADRF5703: 0.25 dB LSB, 7-Bit, Silicon Digital Attenuator
 	    ADRF5720: 0.5 dB LSB, 6-Bit, Silicon Digital Attenuator
 	    ADRF5730: 0.5 dB LSB, 6-Bit, Silicon Digital Attenuator
 	    ADRF5731: 2 dB LSB, 4-Bit, Silicon Digital Attenuator
diff --git a/drivers/iio/amplifiers/ad8366.c b/drivers/iio/amplifiers/ad8366.c
index 334ca91c0f59..bbf41a1fb3a1 100644
--- a/drivers/iio/amplifiers/ad8366.c
+++ b/drivers/iio/amplifiers/ad8366.c
@@ -5,6 +5,8 @@
  *   AD8366 Dual-Digital Variable Gain Amplifier (VGA)
  *   ADA4961 BiCMOS RF Digital Gain Amplifier (DGA)
  *   ADL5240 Digitally controlled variable gain amplifier (VGA)
+ *   ADRF5702: 0.125 dB LSB, 8-Bit, Silicon Digital Attenuator, 50 MHz to 20 GHz
+ *   ADRF5703: 0.25 dB LSB, 7-Bit, Silicon Digital Attenuator, 9 kHz to 20 GHz
  *   ADRF5720: 0.5 dB LSB, 6-Bit, Silicon Digital Attenuator, 9 kHz to 40 GHz
  *   ADRF5730: 0.5 dB LSB, 6-Bit, Silicon Digital Attenuator, 100 MHz to 40 GHz
  *   ADRF5731: 2 dB LSB, 4-Bit, Silicon Digital Attenuator, 100 MHz to 40 GHz
@@ -106,6 +108,22 @@ static const struct ad8366_info adl5240_chip_info = {
 	.num_channels = 1,
 };
 
+static const struct ad8366_info adrf5702_chip_info = {
+	.name = "adrf5702",
+	.gain_min = -31875,
+	.gain_max = 0,
+	.gain_step = -125,
+	.num_channels = 1,
+};
+
+static const struct ad8366_info adrf5703_chip_info = {
+	.name = "adrf5703",
+	.gain_min = -31750,
+	.gain_max = 0,
+	.gain_step = -250,
+	.num_channels = 1,
+};
+
 static const struct ad8366_info adrf5720_chip_info = {
 	.name = "adrf5720",
 	.gain_min = -31500,
@@ -337,6 +355,8 @@ static const struct spi_device_id ad8366_id[] = {
 	{ "ad8366", (kernel_ulong_t)&ad8366_chip_info },
 	{ "ada4961", (kernel_ulong_t)&ada4961_chip_info },
 	{ "adl5240", (kernel_ulong_t)&adl5240_chip_info },
+	{ "adrf5702", (kernel_ulong_t)&adrf5702_chip_info },
+	{ "adrf5703", (kernel_ulong_t)&adrf5703_chip_info },
 	{ "adrf5720", (kernel_ulong_t)&adrf5720_chip_info },
 	{ "adrf5730", (kernel_ulong_t)&adrf5730_chip_info },
 	{ "adrf5731", (kernel_ulong_t)&adrf5731_chip_info },
@@ -353,6 +373,8 @@ static const struct of_device_id ad8366_of_match[] = {
 	{ .compatible = "adi,ad8366", .data = &ad8366_chip_info },
 	{ .compatible = "adi,ada4961", .data = &ada4961_chip_info },
 	{ .compatible = "adi,adl5240", .data = &adl5240_chip_info },
+	{ .compatible = "adi,adrf5702", .data = &adrf5702_chip_info },
+	{ .compatible = "adi,adrf5703", .data = &adrf5703_chip_info },
 	{ .compatible = "adi,adrf5720", .data = &adrf5720_chip_info },
 	{ .compatible = "adi,adrf5730", .data = &adrf5730_chip_info },
 	{ .compatible = "adi,adrf5731", .data = &adrf5731_chip_info },

-- 
2.43.0

Re: [PATCH 0/2] ADRF5702/ADRF5703 Digital Attenuator support

[Nuno Sá]

On Wed, 2026-03-25 at 11:12 +0000, Rodrigo Alencar via B4 Relay wrote:
> This is a small patch series that adds support for two extra attenuators.
> Basically, new chip info and device table entries are added into the
> AD8366 IIO driver.
> 
> Signed-off-by: Rodrigo Alencar <rodrigo.alencar@analog.com>
> ---
> Rodrigo Alencar (2):
>       dt-bindings: iio: amplifiers: ad8366: add adrf5702/3 support
>       iio: amplifiers: ad8366: add support for adrf5702/3
> 
>  .../bindings/iio/amplifiers/adi,ad8366.yaml        |  4 ++++
>  drivers/iio/amplifiers/Kconfig                     |  2 ++
>  drivers/iio/amplifiers/ad8366.c                    | 22 ++++++++++++++++++++++
>  3 files changed, 28 insertions(+)
> ---
> base-commit: af980a79bfed43c4a0be12cca786be46f1a0c5e8
> change-id: 20260325-adrf570x-iio-support-e199418fba40
> 
> Best regards,

Reviewed-by: Nuno Sá <nuno.sa@analog.com>