| Message ID | 20251031160405.13286-2-antoniu.miclaus@analog.com |
|---|---|
| State | New |
| Headers | show |
| Series | iio: amplifiers: add support for ADL8113 Low Noise Amplifier | expand |
On Fri, 31 Oct 2025 16:04:03 +0000 Antoniu Miclaus <antoniu.miclaus@analog.com> wrote: > Add devicetree bindings for adl8113. > > Signed-off-by: Antoniu Miclaus <antoniu.miclaus@analog.com> > --- > .../bindings/iio/amplifiers/adi,adl8113.yaml | 76 +++++++++++++++++++ > 1 file changed, 76 insertions(+) > create mode 100644 Documentation/devicetree/bindings/iio/amplifiers/adi,adl8113.yaml > > diff --git a/Documentation/devicetree/bindings/iio/amplifiers/adi,adl8113.yaml b/Documentation/devicetree/bindings/iio/amplifiers/adi,adl8113.yaml > new file mode 100644 > index 000000000000..4cc21c93233c > --- /dev/null > +++ b/Documentation/devicetree/bindings/iio/amplifiers/adi,adl8113.yaml > @@ -0,0 +1,76 @@ > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) > +%YAML 1.2 > +--- > +$id: http://devicetree.org/schemas/iio/amplifiers/adi,adl8113.yaml# > +$schema: http://devicetree.org/meta-schemas/core.yaml# > + > +title: Analog Devices ADL8113 Low Noise Amplifier with integrated bypass switches > + > +maintainers: > + - Antoniu Miclaus <antoniu.miclaus@analog.com> > + > +description: | > + The ADL8113 is a 10MHz to 12GHz Low Noise Amplifier with integrated bypass > + switches controlled by two GPIO pins (VA and VB). The device supports four > + operation modes: > + - Internal Amplifier: VA=0, VB=0 - Signal passes through the internal LNA > + - Internal Bypass: VA=1, VB=1 - Signal bypasses through internal path > + - External Bypass A: VA=0, VB=1 - Signal routes through external bypass path A > + - External Bypass B: VA=1, VB=0 - Signal routes through external bypass path B These two external paths are a problem for description because there could be literally anything between those OUT_A and IN_A etc. To be useful it might be necessary to describe that circuitry. > + > + https://www.analog.com/en/products/adl8113.html > + > +properties: > + compatible: > + const: adi,adl8113 > + > + vdd1-supply: true > + > + vdd2-supply: true > + > + vss2-supply: true > + > + va-gpios: > + description: > + GPIO connected to the VA control pin. Must be specified as GPIO_ACTIVE_HIGH. > + maxItems: 1 > + > + vb-gpios: > + description: > + GPIO connected to the VB control pin. Must be specified as GPIO_ACTIVE_HIGH. > + maxItems: 1 > + > + adi,initial-mode: > + description: | > + Initial operation mode after device initialization > + 0 - Internal Amplifier (default) > + 1 - Internal Bypass > + 2 - External Bypass A > + 3 - External Bypass B > + $ref: /schemas/types.yaml#/definitions/uint32 > + enum: [0, 1, 2, 3] > + default: 0 Given this only takes affect when the driver loads anyway, why have an initial mode in DT? > + > +required: > + - compatible > + - va-gpios > + - vb-gpios > + - vdd1-supply > + - vdd2-supply > + - vss2-supply > + > +additionalProperties: false > + > +examples: > + - | > + #include <dt-bindings/gpio/gpio.h> > + amplifier { > + compatible = "adi,adl8113"; > + va-gpios = <&gpio 22 GPIO_ACTIVE_HIGH>; > + vb-gpios = <&gpio 23 GPIO_ACTIVE_HIGH>; > + vdd1-supply = <&vdd1_5v>; > + vdd2-supply = <&vdd2_3v3>; > + vss2-supply = <&vss2_neg>; > + adi,initial-mode = <0>; > + }; > +...
diff --git a/Documentation/devicetree/bindings/iio/amplifiers/adi,adl8113.yaml b/Documentation/devicetree/bindings/iio/amplifiers/adi,adl8113.yaml new file mode 100644 index 000000000000..4cc21c93233c --- /dev/null +++ b/Documentation/devicetree/bindings/iio/amplifiers/adi,adl8113.yaml @@ -0,0 +1,76 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/iio/amplifiers/adi,adl8113.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Analog Devices ADL8113 Low Noise Amplifier with integrated bypass switches + +maintainers: + - Antoniu Miclaus <antoniu.miclaus@analog.com> + +description: | + The ADL8113 is a 10MHz to 12GHz Low Noise Amplifier with integrated bypass + switches controlled by two GPIO pins (VA and VB). The device supports four + operation modes: + - Internal Amplifier: VA=0, VB=0 - Signal passes through the internal LNA + - Internal Bypass: VA=1, VB=1 - Signal bypasses through internal path + - External Bypass A: VA=0, VB=1 - Signal routes through external bypass path A + - External Bypass B: VA=1, VB=0 - Signal routes through external bypass path B + + https://www.analog.com/en/products/adl8113.html + +properties: + compatible: + const: adi,adl8113 + + vdd1-supply: true + + vdd2-supply: true + + vss2-supply: true + + va-gpios: + description: + GPIO connected to the VA control pin. Must be specified as GPIO_ACTIVE_HIGH. + maxItems: 1 + + vb-gpios: + description: + GPIO connected to the VB control pin. Must be specified as GPIO_ACTIVE_HIGH. + maxItems: 1 + + adi,initial-mode: + description: | + Initial operation mode after device initialization + 0 - Internal Amplifier (default) + 1 - Internal Bypass + 2 - External Bypass A + 3 - External Bypass B + $ref: /schemas/types.yaml#/definitions/uint32 + enum: [0, 1, 2, 3] + default: 0 + +required: + - compatible + - va-gpios + - vb-gpios + - vdd1-supply + - vdd2-supply + - vss2-supply + +additionalProperties: false + +examples: + - | + #include <dt-bindings/gpio/gpio.h> + amplifier { + compatible = "adi,adl8113"; + va-gpios = <&gpio 22 GPIO_ACTIVE_HIGH>; + vb-gpios = <&gpio 23 GPIO_ACTIVE_HIGH>; + vdd1-supply = <&vdd1_5v>; + vdd2-supply = <&vdd2_3v3>; + vss2-supply = <&vss2_neg>; + adi,initial-mode = <0>; + }; +...
Add devicetree bindings for adl8113. Signed-off-by: Antoniu Miclaus <antoniu.miclaus@analog.com> --- .../bindings/iio/amplifiers/adi,adl8113.yaml | 76 +++++++++++++++++++ 1 file changed, 76 insertions(+) create mode 100644 Documentation/devicetree/bindings/iio/amplifiers/adi,adl8113.yaml