| Message ID | 20221003103016.195805-2-demonsingur@gmail.com (mailing list archive) |
|---|---|
| State | Changes Requested |
| Headers | show |
| Series | [1/2] dt-bindings: iio: addac: add AD74115 | expand |
On 03/10/2022 12:30, Cosmin Tanislav wrote: > From: Cosmin Tanislav <cosmin.tanislav@analog.com> > > The AD74115H is a single-channel, software-configurable, input and > output device for industrial control applications. The AD74115H > provides a wide range of use cases, integrated on a single chip. > > These use cases include analog output, analog input, digital output, > digital input, resistance temperature detector (RTD), and thermocouple > measurement capability. The AD74115H also has an integrated HART modem. > > A serial peripheral interface (SPI) is used to handle all communications > to the device, including communications with the HART modem. The digital > input and digital outputs can be accessed via the SPI or the > general-purpose input and output (GPIO) pins to support higher > speed data rates. > > The device features a 16-bit, sigma-delta analog-to-digital converter > (ADC) and a 14-bit digital-to-analog converter (DAC). > The AD74115H contains a high accuracy 2.5 V on-chip reference that can > be used as the DAC and ADC reference. > > Signed-off-by: Cosmin Tanislav <cosmin.tanislav@analog.com> I got only this patch. Where is the cover letter? > --- > .../bindings/iio/addac/adi,ad74115.yaml | 491 ++++++++++++++++++ > MAINTAINERS | 7 + > 2 files changed, 498 insertions(+) > create mode 100644 Documentation/devicetree/bindings/iio/addac/adi,ad74115.yaml > > diff --git a/Documentation/devicetree/bindings/iio/addac/adi,ad74115.yaml b/Documentation/devicetree/bindings/iio/addac/adi,ad74115.yaml > new file mode 100644 > index 000000000000..1f894d80b259 > --- /dev/null > +++ b/Documentation/devicetree/bindings/iio/addac/adi,ad74115.yaml Filename matching compatible, so adi,ad74115h.yaml > @@ -0,0 +1,491 @@ > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) > +%YAML 1.2 > +--- > +$id: http://devicetree.org/schemas/iio/addac/adi,ad74115.yaml# > +$schema: http://devicetree.org/meta-schemas/core.yaml# > + > +title: Analog Devices AD74115H device > + > +maintainers: > + - Cosmin Tanislav <cosmin.tanislav@analog.com> > + > +description: | > + The AD74115H is a single-channel software configurable input/output > + device for industrial control applications. It contains functionality for > + analog output, analog input, digital output, digital input, resistance > + temperature detector, and thermocouple measurements integrated into a single > + chip solution with an SPI interface. The device features a 16-bit ADC and a > + 14-bit DAC. > + > + https://www.analog.com/en/products/ad74115h.html > + Missing allOf-ref to spi properties. > +properties: > + compatible: > + enum: > + - adi,ad74115h > + > + reg: > + maxItems: 1 > + > + '#address-cells': > + const: 1 > + > + '#size-cells': > + const: 0 > + > + spi-max-frequency: > + maximum: 24000000 > + > + spi-cpol: true > + > + interrupts: > + maxItems: 1 > + > + avdd-supply: true > + avcc-supply: true > + dvcc-supply: true > + aldo1v8-supply: true > + dovdd-supply: true > + refin-supply: true > + > + adi,ch-func: > + $ref: /schemas/types.yaml#/definitions/uint32 > + description: | > + Channel function. > + 0 - High impedance > + 1 - Voltage output > + 2 - Current output > + 3 - Voltage input > + 4 - Current input, externally-powered > + 5 - Current input, loop-powered > + 6 - Resistance input > + 7 - RTD measure > + 8 - Digital input logic > + 9 - Digital input, loop-powered > + 10 - Current output with HART > + 11 - Current input, externally-powered, with HART > + 12 - Current input, loop-powered, with HART > + minimum: 0 > + maximum: 12 > + default: 0 > + > + adi,conv2-mux: > + $ref: /schemas/types.yaml#/definitions/uint32 > + description: | > + Input node for ADC conversion 2. node or mode? > + 0 - SENSE_EXT1 to AGND_SENSE > + 1 - SENSE_EXT2 to AGND_SENSE > + 2 - SENSE_EXT2 to SENSE_EXT1 > + 3 - AGND to AGND > + minimum: 0 > + maximum: 3 > + default: 0 > + > + adi,conv2-range: > + $ref: /schemas/types.yaml#/definitions/uint32 > + description: | > + Conversion range for ADC conversion 2. > + 0 - 0V to 12V > + 1 - -12V to +12V > + 2 - -2.5V to +2.5V > + 3 - -2.5V to 0V > + 4 - 0V to 2.5V > + 5 - 0V to 0.625V > + 6 - -104mV to +104mV > + 7 - 0V to 12V > + minimum: 0 > + maximum: 7 > + default: 0 > + > + adi,diag0-func: > + $ref: /schemas/types.yaml#/definitions/uint32 This nicely matches a string enum. > + description: | > + Diagnostic channel 0 function. > + 0 - Disabled > + 1 - Temperature sensor > + 2 - DVCC > + 3 - AVCC > + 4 - ALDO1V8 > + 5 - DLDO1V8 > + 6 - REFOUT > + 7 - AVDD > + 8 - AVSS > + 9 - LVIN > + 10 - SENSEL > + 11 - SENSE_EXT1 > + 12 - SENSE_EXT2 > + 13 - DO_VDD > + 14 - AGND > + 15 - Sinking current from external digital output > + minimum: 0 > + maximum: 15 > + default: 0 > + > + adi,diag1-func: > + $ref: /schemas/types.yaml#/definitions/uint32 > + description: | Ditto > + Diagnostic channel 1 function. > + 0 - Disabled > + 1 - Temperature sensor > + 2 - DVCC > + 3 - AVCC > + 4 - ALDO1V8 > + 5 - DLDO1V8 > + 6 - REFOUT > + 7 - AVDD > + 8 - AVSS > + 9 - LVIN > + 10 - SENSEL > + 11 - SENSE_EXT1 > + 12 - SENSE_EXT2 > + 13 - DO_VDD > + 14 - AGND > + 15 - Sourcing current from external digital output > + minimum: 0 > + maximum: 15 > + default: 0 > + > + adi,diag2-func: > + $ref: /schemas/types.yaml#/definitions/uint32 Ditto > + description: | > + Diagnostic channel 2 function. > + 0 - Disabled > + 1 - Temperature sensor > + 2 - DVCC > + 3 - AVCC > + 4 - ALDO1V8 > + 5 - DLDO1V8 > + 6 - REFOUT > + 7 - AVDD > + 8 - AVSS > + 9 - LVIN > + 10 - SENSEL > + 11 - SENSE_EXT1 > + 12 - SENSE_EXT2 > + 13 - DO_VDD > + 14 - AGND > + 15 - Sinking current from internal digital output > + minimum: 0 > + maximum: 15 > + default: 0 > + > + adi,diag3-func: > + $ref: /schemas/types.yaml#/definitions/uint32 > + description: | Ditto > + Diagnostic channel 3 function. > + 0 - Disabled > + 1 - Temperature sensor > + 2 - DVCC > + 3 - AVCC > + 4 - ALDO1V8 > + 5 - DLDO1V8 > + 6 - REFOUT > + 7 - AVDD > + 8 - AVSS > + 9 - LVIN > + 10 - SENSEL > + 11 - SENSE_EXT1 > + 12 - SENSE_EXT2 > + 13 - DO_VDD > + 14 - AGND > + 15 - Sourcing current from internal digital output > + minimum: 0 > + maximum: 15 > + default: 0 > + > + adi,sense-agnd-buffer-lp: > + type: boolean > + description: | > + Whether to enable low-power buffered mode for the AGND sense pin. > + > + adi,lf-buffer-lp: > + type: boolean > + description: | > + Whether to enable low-power buffered mode for the low-side filtered > + sense pin. > + > + adi,hf-buffer-lp: > + type: boolean > + description: | > + Whether to enable low-power buffered mode for the high-side filtered > + sense pin. > + > + adi,ext2-buffer-lp: > + type: boolean > + description: Whether to enable low-power buffered mode for the EXT2 pin. > + > + adi,ext1-buffer-lp: > + type: boolean > + description: Whether to enable low-power buffered mode for the EXT1 pin. > + > + adi,comparator-invert-en: Drop "-en" suffix. > + type: boolean > + description: Whether to invert the comparator output. > + > + adi,digital-input-range: > + $ref: /schemas/types.yaml#/definitions/uint32 > + description: | > + Digital input range. > + 0 - Range 0.0 to 3.7mA in steps of 120uA, ~2k series resistance > + 1 - Range 1.0 to 7.4mA in steps of 240uA, ~1k series resistance > + minimum: 0 > + maximum: 1 > + default: 0 > + > + adi,digital-input-sink: > + $ref: /schemas/types.yaml#/definitions/uint32 > + description: Digital input sink. You just copied the name of property into description. It's not useful. > + minimum: 0 > + maximum: 31 > + default: 0 > + > + adi,digital-input-debounce-mode: > + $ref: /schemas/types.yaml#/definitions/uint32 > + description: | > + Digital input debounce mode. > + 0 - Integrator method is used, a counter increments when the > + signal is asserted and decrements when the signal is de-asserted > + 1 - A simple counter increments while a signal is asserted and > + resets when the signal de-asserts > + minimum: 0 > + maximum: 1 This also looks like a string. > + default: 0 > + > + adi,digital-input-unbuffered: > + type: boolean > + description: Whether to buffer digital input signals. > + > + adi,digital-input-short-circuit-detection: > + type: boolean > + description: Whether to detect digital input short circuits. > + > + adi,digital-input-open-circuit-detection: > + type: boolean > + description: Whether to detect digital input open circuits. > + > + adi,digital-input-threshold-mode: > + $ref: /schemas/types.yaml#/definitions/uint32 > + description: | > + Digital input threshold mode. > + 0 - The threshold range is from -0.96 * AVDD to AVDD > + 1 - The threshold range is fixed from -19V to 30V > + minimum: 0 > + maximum: 1 > + default: 0 > + > + adi,dac-bipolar: > + type: boolean > + description: | > + When not present, the DAC operates in the 0V to 12V range. > + When present, the DAC operates in the -12V to 12V range. > + > + adi,charge-pump-en: > + type: boolean > + description: Whether to enable the internal charge pump. > + > + adi,dac-hart-slew: > + type: boolean > + description: Whether to use a HART-compatible slew rate. > + > + adi,dac-current-limit: > + $ref: /schemas/types.yaml#/definitions/uint32 > + description: | > + Current limit. > + 0 - 32mA source or sink for VOUT, 4mA sink for IOUT > + 1 - 16mA source or sink for VOUT, 1mA sink for IOUT Use common property units, so microamp: https://github.com/devicetree-org/dt-schema/blob/main/dtschema/schemas/property-units.yaml > + minimum: 0 > + maximum: 1 > + default: 0 > + > + adi,rtd-mode: > + $ref: /schemas/types.yaml#/definitions/uint32 > + description: | > + RTD mode. > + 0 - 3-wire mode > + 1 - 4-wire mode Looks like a string. > + minimum: 0 > + maximum: 1 > + default: 0 > + > + adi,3-wire-rtd-excitation-swap: > + type: boolean > + description: Whether to swap the excitation for 3-wire RTD. > + > + adi,rtd-excitation-current-microamp: > + description: Excitation current to apply to RTD. > + enum: [250, 500, 750, 1000] > + default: 250 > + > + adi,ext1-burnout-en: Drop "-en" suffix > + type: boolean > + description: Whether to enable burnout current for EXT1. > + > + adi,ext1-burnout-current-nanoamp: > + $ref: /schemas/types.yaml#/definitions/uint32 > + description: | > + Burnout current in nanoamps to be applied to EXT1. > + enum: [0, 50, 500, 1000, 10000] > + default: 0 > + > + adi,ext1-burnout-current-polarity: > + $ref: /schemas/types.yaml#/definitions/uint32 > + description: | > + Burnout current polarity for EXT2. > + 0 - Sinking > + 1 - Sourcing > + minimum: 0 > + maximum: 1 > + default: 0 > + > + adi,ext2-burnout-en: Drop "-en" suffix > + type: boolean > + description: Whether to enable burnout current for EXT2. > + > + adi,ext2-burnout-current-nanoamp: > + $ref: /schemas/types.yaml#/definitions/uint32 > + description: Burnout current in nanoamps to be applied to EXT2. > + enum: [0, 50, 500, 1000, 10000] > + default: 0 > + > + adi,ext2-burnout-current-polarity: > + $ref: /schemas/types.yaml#/definitions/uint32 > + description: | > + Burnout current polarity for EXT2. > + 0 - Sinking > + 1 - Sourcing Looks like a string. > + minimum: 0 > + maximum: 1 > + default: 0 > + > + adi,viout-burnout-en: Drop "-en" suffix > + type: boolean > + description: Whether to enable burnout current for VIOUT. > + > + adi,viout-burnout-current-nanoamp: > + $ref: /schemas/types.yaml#/definitions/uint32 > + description: Burnout current in nanoamps to be applied to VIOUT. > + enum: [0, 1000, 10000] > + default: 0 > + > + adi,viout-burnout-current-polarity: Looks like a string > + $ref: /schemas/types.yaml#/definitions/uint32 > + description: | > + Burnout current polarity for VIOUT. > + 0 - Sinking > + 1 - Sourcing > + minimum: 0 > + maximum: 1 > + default: 0 > + > + adi,gpio0-mode: > + $ref: /schemas/types.yaml#/definitions/uint32 > + description: | > + GPIO functions. > + 0 - Disabled > + 1 - Logic I/O > + 2 - Comparator output > + 3 - Control HART CD > + 4 - Monitor HART CD > + 5 - Monitor HART EOM status Looks like a string > + minimum: 0 > + maximum: 5 > + default: 0 > + > + adi,gpio1-mode: > + $ref: /schemas/types.yaml#/definitions/uint32 > + description: | > + GPIO functions. > + 0 - Disabled > + 1 - Logic I/O > + 2 - Drive external digital output FET > + 3 - Control HART RXD > + 4 - Monitor HART RXD > + 5 - Monitor HART SOM status Looks like a string > + minimum: 0 > + maximum: 5 > + default: 0 > + > + adi,gpio2-mode: > + $ref: /schemas/types.yaml#/definitions/uint32 > + description: | > + GPIO functions. > + 0 - Disabled > + 1 - Logic I/O > + 2 - Drive internal digital output FET > + 3 - Control HART TXD > + 4 - Monitor HART TXD > + 5 - Monitor HART TX complete status Looks like a string > + minimum: 0 > + maximum: 5 > + default: 0 > + > + adi,gpio3-mode: > + $ref: /schemas/types.yaml#/definitions/uint32 > + description: | > + GPIO functions. > + 0 - Disabled > + 1 - Logic I/O > + 2 - High impedance > + 3 - Control HART RTS > + 4 - Monitor HART RTS > + 5 - Monitor HART CD complete status Looks like a string > + minimum: 0 > + maximum: 5 > + default: 0 > + > +required: > + - compatible > + - reg > + - spi-cpol > + - avdd-supply > + > +additionalProperties: false > + Best regards, Krzysztof
On Mon, Oct 03, 2022 at 12:45:31PM +0200, Krzysztof Kozlowski wrote: > On 03/10/2022 12:30, Cosmin Tanislav wrote: > > From: Cosmin Tanislav <cosmin.tanislav@analog.com> > > > > The AD74115H is a single-channel, software-configurable, input and > > output device for industrial control applications. The AD74115H > > provides a wide range of use cases, integrated on a single chip. > > > > These use cases include analog output, analog input, digital output, > > digital input, resistance temperature detector (RTD), and thermocouple > > measurement capability. The AD74115H also has an integrated HART modem. > > > > A serial peripheral interface (SPI) is used to handle all communications > > to the device, including communications with the HART modem. The digital > > input and digital outputs can be accessed via the SPI or the > > general-purpose input and output (GPIO) pins to support higher > > speed data rates. > > > > The device features a 16-bit, sigma-delta analog-to-digital converter > > (ADC) and a 14-bit digital-to-analog converter (DAC). > > The AD74115H contains a high accuracy 2.5 V on-chip reference that can > > be used as the DAC and ADC reference. > > > > Signed-off-by: Cosmin Tanislav <cosmin.tanislav@analog.com> > > I got only this patch. Where is the cover letter? > > > > --- > > .../bindings/iio/addac/adi,ad74115.yaml | 491 ++++++++++++++++++ > > MAINTAINERS | 7 + > > 2 files changed, 498 insertions(+) > > create mode 100644 Documentation/devicetree/bindings/iio/addac/adi,ad74115.yaml > > > > diff --git a/Documentation/devicetree/bindings/iio/addac/adi,ad74115.yaml b/Documentation/devicetree/bindings/iio/addac/adi,ad74115.yaml > > new file mode 100644 > > index 000000000000..1f894d80b259 > > --- /dev/null > > +++ b/Documentation/devicetree/bindings/iio/addac/adi,ad74115.yaml > > Filename matching compatible, so adi,ad74115h.yaml > > > @@ -0,0 +1,491 @@ > > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) > > +%YAML 1.2 > > +--- > > +$id: http://devicetree.org/schemas/iio/addac/adi,ad74115.yaml# > > +$schema: http://devicetree.org/meta-schemas/core.yaml# > > + > > +title: Analog Devices AD74115H device > > + > > +maintainers: > > + - Cosmin Tanislav <cosmin.tanislav@analog.com> > > + > > +description: | > > + The AD74115H is a single-channel software configurable input/output > > + device for industrial control applications. It contains functionality for > > + analog output, analog input, digital output, digital input, resistance > > + temperature detector, and thermocouple measurements integrated into a single > > + chip solution with an SPI interface. The device features a 16-bit ADC and a > > + 14-bit DAC. > > + > > + https://www.analog.com/en/products/ad74115h.html > > + > > Missing allOf-ref to spi properties. > > > +properties: > > + compatible: > > + enum: > > + - adi,ad74115h > > + > > + reg: > > + maxItems: 1 > > + > > + '#address-cells': > > + const: 1 > > + > > + '#size-cells': > > + const: 0 > > + > > + spi-max-frequency: > > + maximum: 24000000 > > + > > + spi-cpol: true > > + > > + interrupts: > > + maxItems: 1 > > + > > + avdd-supply: true > > + avcc-supply: true > > + dvcc-supply: true > > + aldo1v8-supply: true > > + dovdd-supply: true > > + refin-supply: true > > + > > + adi,ch-func: > > + $ref: /schemas/types.yaml#/definitions/uint32 > > + description: | > > + Channel function. > > + 0 - High impedance > > + 1 - Voltage output > > + 2 - Current output > > + 3 - Voltage input > > + 4 - Current input, externally-powered > > + 5 - Current input, loop-powered > > + 6 - Resistance input > > + 7 - RTD measure > > + 8 - Digital input logic > > + 9 - Digital input, loop-powered > > + 10 - Current output with HART > > + 11 - Current input, externally-powered, with HART > > + 12 - Current input, loop-powered, with HART > > + minimum: 0 > > + maximum: 12 > > + default: 0 > > + > > + adi,conv2-mux: > > + $ref: /schemas/types.yaml#/definitions/uint32 > > + description: | > > + Input node for ADC conversion 2. > > node or mode? > > > + 0 - SENSE_EXT1 to AGND_SENSE > > + 1 - SENSE_EXT2 to AGND_SENSE > > + 2 - SENSE_EXT2 to SENSE_EXT1 > > + 3 - AGND to AGND > > + minimum: 0 > > + maximum: 3 > > + default: 0 > > + > > + adi,conv2-range: > > + $ref: /schemas/types.yaml#/definitions/uint32 > > + description: | > > + Conversion range for ADC conversion 2. > > + 0 - 0V to 12V > > + 1 - -12V to +12V > > + 2 - -2.5V to +2.5V > > + 3 - -2.5V to 0V > > + 4 - 0V to 2.5V > > + 5 - 0V to 0.625V > > + 6 - -104mV to +104mV > > + 7 - 0V to 12V > > + minimum: 0 > > + maximum: 7 > > + default: 0 > > + > > + adi,diag0-func: > > + $ref: /schemas/types.yaml#/definitions/uint32 > > This nicely matches a string enum. Then the driver has to do a bunch of string comparisons to get back to a register setting. Worth it if something common, but for a device specific setting, I'd just stick with register field values. If these are diagnostic/debug, why would you want it in DT to begin with? Wouldn't someone want to change this at run-time? Seems like a debugfs feature instead. > > > + description: | > > + Diagnostic channel 0 function. > > + 0 - Disabled > > + 1 - Temperature sensor > > + 2 - DVCC > > + 3 - AVCC > > + 4 - ALDO1V8 > > + 5 - DLDO1V8 > > + 6 - REFOUT > > + 7 - AVDD > > + 8 - AVSS > > + 9 - LVIN > > + 10 - SENSEL > > + 11 - SENSE_EXT1 > > + 12 - SENSE_EXT2 > > + 13 - DO_VDD > > + 14 - AGND > > + 15 - Sinking current from external digital output > > + minimum: 0 > > + maximum: 15 > > + default: 0 > > + > > + adi,diag1-func: > > + $ref: /schemas/types.yaml#/definitions/uint32 > > + description: | > > Ditto
diff --git a/Documentation/devicetree/bindings/iio/addac/adi,ad74115.yaml b/Documentation/devicetree/bindings/iio/addac/adi,ad74115.yaml new file mode 100644 index 000000000000..1f894d80b259 --- /dev/null +++ b/Documentation/devicetree/bindings/iio/addac/adi,ad74115.yaml @@ -0,0 +1,491 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/iio/addac/adi,ad74115.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Analog Devices AD74115H device + +maintainers: + - Cosmin Tanislav <cosmin.tanislav@analog.com> + +description: | + The AD74115H is a single-channel software configurable input/output + device for industrial control applications. It contains functionality for + analog output, analog input, digital output, digital input, resistance + temperature detector, and thermocouple measurements integrated into a single + chip solution with an SPI interface. The device features a 16-bit ADC and a + 14-bit DAC. + + https://www.analog.com/en/products/ad74115h.html + +properties: + compatible: + enum: + - adi,ad74115h + + reg: + maxItems: 1 + + '#address-cells': + const: 1 + + '#size-cells': + const: 0 + + spi-max-frequency: + maximum: 24000000 + + spi-cpol: true + + interrupts: + maxItems: 1 + + avdd-supply: true + avcc-supply: true + dvcc-supply: true + aldo1v8-supply: true + dovdd-supply: true + refin-supply: true + + adi,ch-func: + $ref: /schemas/types.yaml#/definitions/uint32 + description: | + Channel function. + 0 - High impedance + 1 - Voltage output + 2 - Current output + 3 - Voltage input + 4 - Current input, externally-powered + 5 - Current input, loop-powered + 6 - Resistance input + 7 - RTD measure + 8 - Digital input logic + 9 - Digital input, loop-powered + 10 - Current output with HART + 11 - Current input, externally-powered, with HART + 12 - Current input, loop-powered, with HART + minimum: 0 + maximum: 12 + default: 0 + + adi,conv2-mux: + $ref: /schemas/types.yaml#/definitions/uint32 + description: | + Input node for ADC conversion 2. + 0 - SENSE_EXT1 to AGND_SENSE + 1 - SENSE_EXT2 to AGND_SENSE + 2 - SENSE_EXT2 to SENSE_EXT1 + 3 - AGND to AGND + minimum: 0 + maximum: 3 + default: 0 + + adi,conv2-range: + $ref: /schemas/types.yaml#/definitions/uint32 + description: | + Conversion range for ADC conversion 2. + 0 - 0V to 12V + 1 - -12V to +12V + 2 - -2.5V to +2.5V + 3 - -2.5V to 0V + 4 - 0V to 2.5V + 5 - 0V to 0.625V + 6 - -104mV to +104mV + 7 - 0V to 12V + minimum: 0 + maximum: 7 + default: 0 + + adi,diag0-func: + $ref: /schemas/types.yaml#/definitions/uint32 + description: | + Diagnostic channel 0 function. + 0 - Disabled + 1 - Temperature sensor + 2 - DVCC + 3 - AVCC + 4 - ALDO1V8 + 5 - DLDO1V8 + 6 - REFOUT + 7 - AVDD + 8 - AVSS + 9 - LVIN + 10 - SENSEL + 11 - SENSE_EXT1 + 12 - SENSE_EXT2 + 13 - DO_VDD + 14 - AGND + 15 - Sinking current from external digital output + minimum: 0 + maximum: 15 + default: 0 + + adi,diag1-func: + $ref: /schemas/types.yaml#/definitions/uint32 + description: | + Diagnostic channel 1 function. + 0 - Disabled + 1 - Temperature sensor + 2 - DVCC + 3 - AVCC + 4 - ALDO1V8 + 5 - DLDO1V8 + 6 - REFOUT + 7 - AVDD + 8 - AVSS + 9 - LVIN + 10 - SENSEL + 11 - SENSE_EXT1 + 12 - SENSE_EXT2 + 13 - DO_VDD + 14 - AGND + 15 - Sourcing current from external digital output + minimum: 0 + maximum: 15 + default: 0 + + adi,diag2-func: + $ref: /schemas/types.yaml#/definitions/uint32 + description: | + Diagnostic channel 2 function. + 0 - Disabled + 1 - Temperature sensor + 2 - DVCC + 3 - AVCC + 4 - ALDO1V8 + 5 - DLDO1V8 + 6 - REFOUT + 7 - AVDD + 8 - AVSS + 9 - LVIN + 10 - SENSEL + 11 - SENSE_EXT1 + 12 - SENSE_EXT2 + 13 - DO_VDD + 14 - AGND + 15 - Sinking current from internal digital output + minimum: 0 + maximum: 15 + default: 0 + + adi,diag3-func: + $ref: /schemas/types.yaml#/definitions/uint32 + description: | + Diagnostic channel 3 function. + 0 - Disabled + 1 - Temperature sensor + 2 - DVCC + 3 - AVCC + 4 - ALDO1V8 + 5 - DLDO1V8 + 6 - REFOUT + 7 - AVDD + 8 - AVSS + 9 - LVIN + 10 - SENSEL + 11 - SENSE_EXT1 + 12 - SENSE_EXT2 + 13 - DO_VDD + 14 - AGND + 15 - Sourcing current from internal digital output + minimum: 0 + maximum: 15 + default: 0 + + adi,sense-agnd-buffer-lp: + type: boolean + description: | + Whether to enable low-power buffered mode for the AGND sense pin. + + adi,lf-buffer-lp: + type: boolean + description: | + Whether to enable low-power buffered mode for the low-side filtered + sense pin. + + adi,hf-buffer-lp: + type: boolean + description: | + Whether to enable low-power buffered mode for the high-side filtered + sense pin. + + adi,ext2-buffer-lp: + type: boolean + description: Whether to enable low-power buffered mode for the EXT2 pin. + + adi,ext1-buffer-lp: + type: boolean + description: Whether to enable low-power buffered mode for the EXT1 pin. + + adi,comparator-invert-en: + type: boolean + description: Whether to invert the comparator output. + + adi,digital-input-range: + $ref: /schemas/types.yaml#/definitions/uint32 + description: | + Digital input range. + 0 - Range 0.0 to 3.7mA in steps of 120uA, ~2k series resistance + 1 - Range 1.0 to 7.4mA in steps of 240uA, ~1k series resistance + minimum: 0 + maximum: 1 + default: 0 + + adi,digital-input-sink: + $ref: /schemas/types.yaml#/definitions/uint32 + description: Digital input sink. + minimum: 0 + maximum: 31 + default: 0 + + adi,digital-input-debounce-mode: + $ref: /schemas/types.yaml#/definitions/uint32 + description: | + Digital input debounce mode. + 0 - Integrator method is used, a counter increments when the + signal is asserted and decrements when the signal is de-asserted + 1 - A simple counter increments while a signal is asserted and + resets when the signal de-asserts + minimum: 0 + maximum: 1 + default: 0 + + adi,digital-input-unbuffered: + type: boolean + description: Whether to buffer digital input signals. + + adi,digital-input-short-circuit-detection: + type: boolean + description: Whether to detect digital input short circuits. + + adi,digital-input-open-circuit-detection: + type: boolean + description: Whether to detect digital input open circuits. + + adi,digital-input-threshold-mode: + $ref: /schemas/types.yaml#/definitions/uint32 + description: | + Digital input threshold mode. + 0 - The threshold range is from -0.96 * AVDD to AVDD + 1 - The threshold range is fixed from -19V to 30V + minimum: 0 + maximum: 1 + default: 0 + + adi,dac-bipolar: + type: boolean + description: | + When not present, the DAC operates in the 0V to 12V range. + When present, the DAC operates in the -12V to 12V range. + + adi,charge-pump-en: + type: boolean + description: Whether to enable the internal charge pump. + + adi,dac-hart-slew: + type: boolean + description: Whether to use a HART-compatible slew rate. + + adi,dac-current-limit: + $ref: /schemas/types.yaml#/definitions/uint32 + description: | + Current limit. + 0 - 32mA source or sink for VOUT, 4mA sink for IOUT + 1 - 16mA source or sink for VOUT, 1mA sink for IOUT + minimum: 0 + maximum: 1 + default: 0 + + adi,rtd-mode: + $ref: /schemas/types.yaml#/definitions/uint32 + description: | + RTD mode. + 0 - 3-wire mode + 1 - 4-wire mode + minimum: 0 + maximum: 1 + default: 0 + + adi,3-wire-rtd-excitation-swap: + type: boolean + description: Whether to swap the excitation for 3-wire RTD. + + adi,rtd-excitation-current-microamp: + description: Excitation current to apply to RTD. + enum: [250, 500, 750, 1000] + default: 250 + + adi,ext1-burnout-en: + type: boolean + description: Whether to enable burnout current for EXT1. + + adi,ext1-burnout-current-nanoamp: + $ref: /schemas/types.yaml#/definitions/uint32 + description: | + Burnout current in nanoamps to be applied to EXT1. + enum: [0, 50, 500, 1000, 10000] + default: 0 + + adi,ext1-burnout-current-polarity: + $ref: /schemas/types.yaml#/definitions/uint32 + description: | + Burnout current polarity for EXT2. + 0 - Sinking + 1 - Sourcing + minimum: 0 + maximum: 1 + default: 0 + + adi,ext2-burnout-en: + type: boolean + description: Whether to enable burnout current for EXT2. + + adi,ext2-burnout-current-nanoamp: + $ref: /schemas/types.yaml#/definitions/uint32 + description: Burnout current in nanoamps to be applied to EXT2. + enum: [0, 50, 500, 1000, 10000] + default: 0 + + adi,ext2-burnout-current-polarity: + $ref: /schemas/types.yaml#/definitions/uint32 + description: | + Burnout current polarity for EXT2. + 0 - Sinking + 1 - Sourcing + minimum: 0 + maximum: 1 + default: 0 + + adi,viout-burnout-en: + type: boolean + description: Whether to enable burnout current for VIOUT. + + adi,viout-burnout-current-nanoamp: + $ref: /schemas/types.yaml#/definitions/uint32 + description: Burnout current in nanoamps to be applied to VIOUT. + enum: [0, 1000, 10000] + default: 0 + + adi,viout-burnout-current-polarity: + $ref: /schemas/types.yaml#/definitions/uint32 + description: | + Burnout current polarity for VIOUT. + 0 - Sinking + 1 - Sourcing + minimum: 0 + maximum: 1 + default: 0 + + adi,gpio0-mode: + $ref: /schemas/types.yaml#/definitions/uint32 + description: | + GPIO functions. + 0 - Disabled + 1 - Logic I/O + 2 - Comparator output + 3 - Control HART CD + 4 - Monitor HART CD + 5 - Monitor HART EOM status + minimum: 0 + maximum: 5 + default: 0 + + adi,gpio1-mode: + $ref: /schemas/types.yaml#/definitions/uint32 + description: | + GPIO functions. + 0 - Disabled + 1 - Logic I/O + 2 - Drive external digital output FET + 3 - Control HART RXD + 4 - Monitor HART RXD + 5 - Monitor HART SOM status + minimum: 0 + maximum: 5 + default: 0 + + adi,gpio2-mode: + $ref: /schemas/types.yaml#/definitions/uint32 + description: | + GPIO functions. + 0 - Disabled + 1 - Logic I/O + 2 - Drive internal digital output FET + 3 - Control HART TXD + 4 - Monitor HART TXD + 5 - Monitor HART TX complete status + minimum: 0 + maximum: 5 + default: 0 + + adi,gpio3-mode: + $ref: /schemas/types.yaml#/definitions/uint32 + description: | + GPIO functions. + 0 - Disabled + 1 - Logic I/O + 2 - High impedance + 3 - Control HART RTS + 4 - Monitor HART RTS + 5 - Monitor HART CD complete status + minimum: 0 + maximum: 5 + default: 0 + +required: + - compatible + - reg + - spi-cpol + - avdd-supply + +additionalProperties: false + +examples: + - | + #include <dt-bindings/gpio/gpio.h> + #include <dt-bindings/interrupt-controller/irq.h> + + spi { + #address-cells = <1>; + #size-cells = <0>; + + cs-gpios = <&gpio 17 GPIO_ACTIVE_LOW>; + status = "okay"; + + addac@0 { + compatible = "adi,ad74115h"; + reg = <0>; + + #address-cells = <1>; + #size-cells = <0>; + + spi-max-frequency = <12000000>; + spi-cpol; + + interrupt-parent = <&gpio>; + interrupts = <26 IRQ_TYPE_EDGE_FALLING>; + + refin-supply = <&ad74115_refin>; + avdd-supply = <&ad74115_avdd>; + + adi,ch-func = <1>; + adi,conv2-mux = <2>; + adi,conv2-range = <1>; + + adi,digital-input-unbuffered; + adi,gpio0-mode = <2>; + + adi,gpio1-mode = <1>; + adi,gpio2-mode = <1>; + adi,gpio3-mode = <1>; + + adi,diag0-func = <10>; + adi,diag1-func = <8>; + adi,diag2-func = <6>; + adi,diag3-func = <12>; + + adi,dac-bipolar; + }; + }; +... diff --git a/MAINTAINERS b/MAINTAINERS index c547559eddf9..25071e763b33 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -1140,6 +1140,13 @@ W: https://ez.analog.com/linux-software-drivers F: Documentation/devicetree/bindings/iio/adc/adi,ad7780.yaml F: drivers/iio/adc/ad7780.c +ANALOG DEVICES INC AD74115 DRIVER +M: Cosmin Tanislav <cosmin.tanislav@analog.com> +L: linux-iio@vger.kernel.org +S: Supported +W: http://ez.analog.com/community/linux-device-drivers +F: Documentation/devicetree/bindings/iio/addac/adi,ad74115.yaml + ANALOG DEVICES INC AD74413R DRIVER M: Cosmin Tanislav <cosmin.tanislav@analog.com> L: linux-iio@vger.kernel.org