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Diffstat (limited to 'Documentation/devicetree/bindings/iio/dac')
37 files changed, 3190 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/iio/dac/adi,ad3552r.yaml b/Documentation/devicetree/bindings/iio/dac/adi,ad3552r.yaml new file mode 100644 index 000000000..fee0f023a --- /dev/null +++ b/Documentation/devicetree/bindings/iio/dac/adi,ad3552r.yaml @@ -0,0 +1,218 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +# Copyright 2020 Analog Devices Inc. +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/iio/dac/adi,ad3552r.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Analog Devices AD2552R DAC device driver + +maintainers: + - Nuno Sá <nuno.sa@analog.com> + +description: | + Bindings for the Analog Devices AD3552R DAC device and similar. + Datasheet can be found here: + https://www.analog.com/media/en/technical-documentation/data-sheets/ad3542r.pdf + https://www.analog.com/media/en/technical-documentation/data-sheets/ad3552r.pdf + +properties: + compatible: + enum: + - adi,ad3542r + - adi,ad3552r + + reg: + maxItems: 1 + + spi-max-frequency: + maximum: 30000000 + + reset-gpios: + maxItems: 1 + + ldac-gpios: + description: | + LDAC pin to be used as a hardware trigger to update the DAC channels. + maxItems: 1 + + vref-supply: + description: + The regulator to use as an external reference. If it does not exists the + internal reference will be used. External reference must be 2.5V + + adi,vref-out-en: + description: Vref I/O driven by internal vref to 2.5V. If not set, Vref pin + will be floating. + type: boolean + + adi,sdo-drive-strength: + description: | + Configure SDIO0 and SDIO1 strength levels: + - 0: low SDO drive strength. + - 1: medium low SDO drive strength. + - 2: medium high SDO drive strength. + - 3: high SDO drive strength + $ref: /schemas/types.yaml#/definitions/uint32 + enum: [0, 1, 2, 3] + + '#address-cells': + const: 1 + + '#size-cells': + const: 0 + +patternProperties: + "^channel@([0-1])$": + type: object + description: Configurations of the DAC Channels + + additionalProperties: false + + properties: + reg: + description: Channel number + enum: [0, 1] + + adi,output-range-microvolt: true + + custom-output-range-config: + type: object + additionalProperties: false + description: Configuration of custom range when + adi,output-range-microvolt is not present. + The formulas for calculation the output voltages are + Vout_fs = 2.5 + [(GainN + Offset/1024) * 2.5 * Rfbx * 1.03] + Vout_zs = 2.5 - [(GainP + Offset/1024) * 2.5 * Rfbx * 1.03] + + properties: + adi,gain-offset: + description: Gain offset used in the above formula + $ref: /schemas/types.yaml#/definitions/int32 + maximum: 511 + minimum: -511 + + adi,gain-scaling-p-inv-log2: + description: GainP = 1 / ( 2 ^ adi,gain-scaling-p-inv-log2) + $ref: /schemas/types.yaml#/definitions/uint32 + enum: [0, 1, 2, 3] + + adi,gain-scaling-n-inv-log2: + description: GainN = 1 / ( 2 ^ adi,gain-scaling-n-inv-log2) + $ref: /schemas/types.yaml#/definitions/uint32 + enum: [0, 1, 2, 3] + + adi,rfb-ohms: + description: Feedback Resistor + + required: + - adi,gain-offset + - adi,gain-scaling-p-inv-log2 + - adi,gain-scaling-n-inv-log2 + - adi,rfb-ohms + + required: + - reg + + oneOf: + # If adi,output-range-microvolt is missing, + # custom-output-range-config must be used + - required: + - adi,output-range-microvolt + + - required: + - custom-output-range-config + +allOf: + - if: + properties: + compatible: + contains: + const: adi,ad3542r + then: + patternProperties: + "^channel@([0-1])$": + type: object + properties: + adi,output-range-microvolt: + description: | + Voltage output range of the channel as <minimum, maximum> + Required connections: + Rfb1x for: 0 to 2.5 V; 0 to 3V; 0 to 5 V; + Rfb2x for: 0 to 10 V; 2.5 to 7.5V; -5 to 5 V; + oneOf: + - items: + - const: 0 + - enum: [2500000, 3000000, 5000000, 10000000] + - items: + - const: -2500000 + - const: 7500000 + - items: + - const: -5000000 + - const: 5000000 + + required: + - adi,output-range-microvolt + + - if: + properties: + compatible: + contains: + const: adi,ad3552r + then: + patternProperties: + "^channel@([0-1])$": + type: object + properties: + adi,output-range-microvolt: + description: | + Voltage output range of the channel as <minimum, maximum> + Required connections: + Rfb1x for: 0 to 2.5 V; 0 to 5 V; + Rfb2x for: 0 to 10 V; -5 to 5 V; + Rfb4x for: -10 to 10V + oneOf: + - items: + - const: 0 + - enum: [2500000, 5000000, 10000000] + - items: + - const: -5000000 + - const: 5000000 + - items: + - const: -10000000 + - const: 10000000 + +required: + - compatible + - reg + - spi-max-frequency + +additionalProperties: false + +examples: + - | + spi { + #address-cells = <1>; + #size-cells = <0>; + ad3552r@0 { + compatible = "adi,ad3552r"; + reg = <0>; + spi-max-frequency = <20000000>; + #address-cells = <1>; + #size-cells = <0>; + channel@0 { + reg = <0>; + adi,output-range-microvolt = <0 10000000>; + }; + channel@1 { + reg = <1>; + custom-output-range-config { + adi,gain-offset = <5>; + adi,gain-scaling-p-inv-log2 = <1>; + adi,gain-scaling-n-inv-log2 = <2>; + adi,rfb-ohms = <1>; + }; + }; + }; + }; +... diff --git a/Documentation/devicetree/bindings/iio/dac/adi,ad5064.yaml b/Documentation/devicetree/bindings/iio/dac/adi,ad5064.yaml new file mode 100644 index 000000000..c04165fa9 --- /dev/null +++ b/Documentation/devicetree/bindings/iio/dac/adi,ad5064.yaml @@ -0,0 +1,267 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/iio/dac/adi,ad5064.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Analog Devices AD5064 and similar DACs + +maintainers: + - Lars-Peter Clausen <lars@metafoo.de> + - Jonathan Cameron <jic23@kernel.org> + +description: | + A range of similar DAC devices with between 1 and 12 channels. Some parts + have internal references, others require a single shared external reference + and the remainder have a separate reference pin for each DAC. + +properties: + compatible: + oneOf: + - description: I2C devics + enum: + - adi,ad5024 + - adi,ad5025 + - adi,ad5044 + - adi,ad5045 + - adi,ad5064 + - adi,ad5064-1 + - adi,ad5065 + - adi,ad5628-1 + - adi,ad5628-2 + - adi,ad5648-1 + - adi,ad5648-2 + - adi,ad5666-1 + - adi,ad5666-2 + - adi,ad5668-1 + - adi,ad5668-2 + - adi,ad5668-3 + - description: SPI devices + enum: + - adi,ad5625 + - adi,ad5625r-1v25 + - adi,ad5625r-2v5 + - adi,ad5627 + - adi,ad5627r-1v25 + - adi,ad5627r-2v5 + - adi,ad5629-1 + - adi,ad5629-2 + - adi,ad5629-3 + - adi,ad5645r-1v25 + - adi,ad5645r-2v5 + - adi,ad5665 + - adi,ad5665r-1v25 + - adi,ad5665r-2v5 + - adi,ad5667 + - adi,ad5667r-1v25 + - adi,ad5667r-2v5 + - adi,ad5669-1 + - adi,ad5669-2 + - adi,ad5669-3 + - lltc,ltc2606 + - lltc,ltc2607 + - lltc,ltc2609 + - lltc,ltc2616 + - lltc,ltc2617 + - lltc,ltc2619 + - lltc,ltc2626 + - lltc,ltc2627 + - lltc,ltc2629 + - lltc,ltc2631-l12 + - lltc,ltc2631-h12 + - lltc,ltc2631-l10 + - lltc,ltc2631-h10 + - lltc,ltc2631-l8 + - lltc,ltc2631-h8 + - lltc,ltc2633-l12 + - lltc,ltc2633-h12 + - lltc,ltc2633-l10 + - lltc,ltc2633-h10 + - lltc,ltc2633-l8 + - lltc,ltc2633-h8 + - lltc,ltc2635-l12 + - lltc,ltc2635-h12 + - lltc,ltc2635-l10 + - lltc,ltc2635-h10 + - lltc,ltc2635-l8 + - lltc,ltc2635-h8 + + reg: + maxItems: 1 + + vrefA-supply: true + vrefB-supply: true + vrefC-supply: true + vrefD-supply: true + vref-supply: true + +required: + - compatible + - reg + +allOf: + - $ref: /schemas/spi/spi-peripheral-props.yaml# + - # Shared external vref, no internal reference + if: + properties: + compatible: + contains: + enum: + - adi,ad5064-1 + - adi,ad5625 + - adi,ad5627 + - adi,ad5665 + - adi,ad5667 + - lltc,ltc2606 + - lltc,ltc2607 + - lltc,ltc2616 + - lltc,ltc2617 + - lltc,ltc2626 + - lltc,ltc2627 + then: + properties: + vref-supply: true + vrefA-supply: false + vrefB-supply: false + vrefC-supply: false + vrefD-supply: false + required: + - vref-supply + - # Shared external vref, internal reference available + if: + properties: + compatible: + contains: + enum: + - adi,ad5625r-1v25 + - adi,ad5625r-2v5 + - adi,ad5627r-1v25 + - adi,ad5627r-2v5 + - adi,ad5628-1 + - adi,ad5628-2 + - adi,ad5629-1 + - adi,ad5629-2 + - adi,ad5629-3 + - adi,ad5645r-1v25 + - adi,ad5645r-2v5 + - adi,ad5647r-1v25 + - adi,ad5647r-2v5 + - adi,ad5648-1 + - adi,ad5648-2 + - adi,ad5665r-1v25 + - adi,ad5665r-2v5 + - adi,ad5666-1 + - adi,ad5666-2 + - adi,ad5667r-1v25 + - adi,ad5667r-2v5 + - adi,ad5668-1 + - adi,ad5668-2 + - adi,ad5668-3 + - adi,ad5669-1 + - adi,ad5669-2 + - adi,ad5669-3 + - lltc,ltc2631-l12 + - lltc,ltc2631-h12 + - lltc,ltc2631-l10 + - lltc,ltc2631-h10 + - lltc,ltc2631-l8 + - lltc,ltc2631-h8 + - lltc,ltc2633-l12 + - lltc,ltc2633-h12 + - lltc,ltc2633-l10 + - lltc,ltc2633-h10 + - lltc,ltc2633-l8 + - lltc,ltc2633-h8 + - lltc,ltc2635-l12 + - lltc,ltc2635-h12 + - lltc,ltc2635-l10 + - lltc,ltc2635-h10 + - lltc,ltc2635-l8 + - lltc,ltc2635-h8 + then: + properties: + vref-supply: true + vrefA-supply: false + vrefB-supply: false + vrefC-supply: false + vrefD-supply: false + - # 4 input devices, separate vrefs, no internal reference + if: + properties: + compatible: + contains: + enum: + - adi,ad5024 + - adi,ad5044 + - adi,ad5064 + - lltc,ltc2609 + - lltc,ltc2619 + - lltc,ltc2629 + then: + properties: + vrefA-supply: true + vrefB-supply: true + vrefC-supply: true + vrefD-supply: true + vref-supply: false + required: + - vrefA-supply + - vrefB-supply + - vrefC-supply + - vrefD-supply + - # 2 input devices, separate vrefs, no internal reference + if: + properties: + compatible: + contains: + enum: + - adi,ad5025 + - adi,ad5045 + - adi,ad5065 + then: + properties: + vrefA-supply: true + vrefB-supply: true + vrefC-supply: false + vrefD-supply: false + vref-supply: false + required: + - vrefA-supply + - vrefB-supply + +unevaluatedProperties: false + +examples: + - | + spi { + #address-cells = <1>; + #size-cells = <0>; + dac@0 { + reg = <0>; + compatible = "adi,ad5625"; + vref-supply = <&dac_vref>; + }; + }; + - | + spi { + #address-cells = <1>; + #size-cells = <0>; + dac@0 { + reg = <0>; + compatible = "adi,ad5625r-1v25"; + }; + }; + - | + i2c { + #address-cells = <1>; + #size-cells = <0>; + dac@42 { + reg = <0x42>; + compatible = "adi,ad5024"; + vrefA-supply = <&dac_vref>; + vrefB-supply = <&dac_vref>; + vrefC-supply = <&dac_vref2>; + vrefD-supply = <&dac_vref2>; + }; + }; +... diff --git a/Documentation/devicetree/bindings/iio/dac/adi,ad5360.yaml b/Documentation/devicetree/bindings/iio/dac/adi,ad5360.yaml new file mode 100644 index 000000000..86e2884cd --- /dev/null +++ b/Documentation/devicetree/bindings/iio/dac/adi,ad5360.yaml @@ -0,0 +1,78 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/iio/dac/adi,ad5360.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Analog Devices AD5360 and similar DACs + +maintainers: + - Lars-Peter Clausen <lars@metafoo.de> + - Jonathan Cameron <jic23@kernel.org> + +properties: + compatible: + enum: + - adi,ad5360 + - adi,ad5361 + - adi,ad5363 + - adi,ad5370 + - adi,ad5371 + - adi,ad5372 + - adi,ad5373 + + reg: + maxItems: 1 + + vref0-supply: true + vref1-supply: true + vref2-supply: true + +required: + - compatible + - reg + - vref0-supply + - vref1-supply + +allOf: + - $ref: /schemas/spi/spi-peripheral-props.yaml# + - if: + properties: + compatible: + contains: + enum: + - adi,ad5360 + - adi,ad5361 + - adi,ad5363 + - adi,ad5370 + - adi,ad5372 + - adi,ad5373 + then: + properties: + vref2-supply: false + - if: + properties: + compatible: + contains: + enum: + - adi,ad5371 + then: + required: + - vref2-supply + +unevaluatedProperties: false + +examples: + - | + spi { + #address-cells = <1>; + #size-cells = <0>; + dac@0 { + reg = <0>; + compatible = "adi,ad5371"; + vref0-supply = <&dac_vref0>; + vref1-supply = <&dac_vref1>; + vref2-supply = <&dac_vref2>; + }; + }; +... diff --git a/Documentation/devicetree/bindings/iio/dac/adi,ad5380.yaml b/Documentation/devicetree/bindings/iio/dac/adi,ad5380.yaml new file mode 100644 index 000000000..ff50c72c6 --- /dev/null +++ b/Documentation/devicetree/bindings/iio/dac/adi,ad5380.yaml @@ -0,0 +1,71 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/iio/dac/adi,ad5380.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Analog Devices AD5380 and similar DACs + +maintainers: + - Lars-Peter Clausen <lars@metafoo.de> + - Jonathan Cameron <jic23@kernel.org> + +description: | + DAC devices supporting both SPI and I2C interfaces. +properties: + compatible: + enum: + - adi,ad5380-3 + - adi,ad5380-5 + - adi,ad5381-3 + - adi,ad5381-5 + - adi,ad5382-3 + - adi,ad5382-5 + - adi,ad5383-3 + - adi,ad5383-5 + - adi,ad5384-3 + - adi,ad5384-5 + - adi,ad5390-3 + - adi,ad5390-5 + - adi,ad5391-3 + - adi,ad5391-5 + - adi,ad5392-3 + - adi,ad5392-5 + + reg: + maxItems: 1 + + vref-supply: + description: + If not supplied devices will use internal regulators. + +required: + - compatible + - reg + +allOf: + - $ref: /schemas/spi/spi-peripheral-props.yaml# + +unevaluatedProperties: false + +examples: + - | + spi { + #address-cells = <1>; + #size-cells = <0>; + dac@0 { + reg = <0>; + compatible = "adi,ad5390-5"; + vref-supply = <&dacvref>; + }; + }; + - | + i2c { + #address-cells = <1>; + #size-cells = <0>; + dac@42 { + reg = <0x42>; + compatible = "adi,ad5380-3"; + }; + }; +... diff --git a/Documentation/devicetree/bindings/iio/dac/adi,ad5421.yaml b/Documentation/devicetree/bindings/iio/dac/adi,ad5421.yaml new file mode 100644 index 000000000..52d089ebd --- /dev/null +++ b/Documentation/devicetree/bindings/iio/dac/adi,ad5421.yaml @@ -0,0 +1,52 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/iio/dac/adi,ad5421.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Analog Devices AD5421 DAC + +maintainers: + - Lars-Peter Clausen <lars@metafoo.de> + - Jonathan Cameron <jic23@kernel.org> + +description: | + AD5421 is designed for us in loop-powered, 4 mA to 20 mA smart transmitter + applications. It provides a 16-bit DAC, current amplifier, voltage regulator + to drive the loop and a voltage reference. + +properties: + compatible: + const: adi,ad5421 + + reg: + maxItems: 1 + + interrupts: + maxItems: 1 + description: Fault signal. + +required: + - compatible + - reg + +allOf: + - $ref: /schemas/spi/spi-peripheral-props.yaml# + +unevaluatedProperties: false + +examples: + - | + #include <dt-bindings/interrupt-controller/irq.h> + spi { + #address-cells = <1>; + #size-cells = <0>; + + dac@0 { + compatible = "adi,ad5421"; + reg = <0>; + spi-max-frequency = <30000000>; + interrupts = <55 IRQ_TYPE_LEVEL_HIGH>; + }; + }; +... diff --git a/Documentation/devicetree/bindings/iio/dac/adi,ad5449.yaml b/Documentation/devicetree/bindings/iio/dac/adi,ad5449.yaml new file mode 100644 index 000000000..d2af2d491 --- /dev/null +++ b/Documentation/devicetree/bindings/iio/dac/adi,ad5449.yaml @@ -0,0 +1,96 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/iio/dac/adi,ad5449.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Analog Devices AD5449 and similar DACs + +maintainers: + - Lars-Peter Clausen <lars@metafoo.de> + - Jonathan Cameron <jic23@kernel.org> + +description: + Family of multiplying DACs from Analog Devices + +properties: + compatible: + enum: + - adi,ad5415 + - adi,ad5426 + - adi,ad5429 + - adi,ad5432 + - adi,ad5439 + - adi,ad5443 + - adi,ad5449 + + reg: + maxItems: 1 + + VREF-supply: true + VREFA-supply: true + VREFB-supply: true + +required: + - compatible + - reg + +allOf: + - $ref: /schemas/spi/spi-peripheral-props.yaml# + - if: + properties: + compatible: + contains: + enum: + - adi,ad5415 + - adi,ad5426 + - adi,ad5432 + then: + properties: + VREF-supply: true + VREFA-supply: false + VREFB-supply: false + required: + - VREF-supply + - if: + properties: + compatible: + contains: + enum: + - adi,ad5429 + - adi,ad5439 + - adi,ad5449 + then: + properties: + VREF-supply: false + VREFA-supply: true + VREFB-supply: true + required: + - VREFA-supply + - VREFB-supply + +unevaluatedProperties: false + +examples: + - | + spi { + #address-cells = <1>; + #size-cells = <0>; + dac@0 { + reg = <0>; + compatible = "adi,ad5415"; + VREF-supply = <&dac_ref>; + }; + }; + - | + spi { + #address-cells = <1>; + #size-cells = <0>; + dac@0 { + reg = <0>; + compatible = "adi,ad5429"; + VREFA-supply = <&dac_refA>; + VREFB-supply = <&dac_refB>; + }; + }; +... diff --git a/Documentation/devicetree/bindings/iio/dac/adi,ad5504.yaml b/Documentation/devicetree/bindings/iio/dac/adi,ad5504.yaml new file mode 100644 index 000000000..9c2c03868 --- /dev/null +++ b/Documentation/devicetree/bindings/iio/dac/adi,ad5504.yaml @@ -0,0 +1,50 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/iio/dac/adi,ad5504.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Analog Devices AD5501 and AD5504 DACs + +maintainers: + - Lars-Peter Clausen <lars@metafoo.de> + - Jonathan Cameron <jic23@kernel.org> + +description: + High voltage (up to 60V) DACs with temperature sensor alarm function + +properties: + compatible: + enum: + - adi,ad5501 + - adi,ad5504 + + reg: + maxItems: 1 + + interrupts: + description: Used for temperature alarm. + maxItems: 1 + + vcc-supply: true + +additionalProperties: false + +required: + - compatible + - reg + +examples: + - | + #include <dt-bindings/interrupt-controller/irq.h> + spi { + #address-cells = <1>; + #size-cells = <0>; + dac@0 { + reg = <0>; + compatible = "adi,ad5504"; + vcc-supply = <&dac_vcc>; + interrupts = <55 IRQ_TYPE_EDGE_FALLING>; + }; + }; +... diff --git a/Documentation/devicetree/bindings/iio/dac/adi,ad5592r.yaml b/Documentation/devicetree/bindings/iio/dac/adi,ad5592r.yaml new file mode 100644 index 000000000..30194880f --- /dev/null +++ b/Documentation/devicetree/bindings/iio/dac/adi,ad5592r.yaml @@ -0,0 +1,204 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/iio/dac/adi,ad5592r.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Analog Devices AD5592R/AD5593R DAC/ADC + +maintainers: + - Michael Hennerich <michael.hennerich@analog.com> + +properties: + compatible: + enum: + - adi,ad5592r + - adi,ad5593r + + reg: + maxItems: 1 + + spi-max-frequency: + maximum: 30000000 + + spi-cpol: true + + "#address-cells": + const: 1 + + "#size-cells": + const: 0 + + "#io-channel-cells": + const: 1 + + vref-supply: + description: If not set internal 2.5V reference used. + + reset-gpios: + maxItems: 1 + + gpio-controller: + description: Marks the device node as a GPIO controller. + + "#gpio-cells": + const: 2 + description: + The first cell is the GPIO number and the second cell specifies + GPIO flags, as defined in <dt-bindings/gpio/gpio.h>. + +required: + - compatible + - reg + - "#address-cells" + - "#size-cells" + +allOf: + - if: + properties: + compatible: + contains: + const: adi,ad5592r + then: + required: + - spi-cpol + else: + properties: + spi-cpol: false + +additionalProperties: false + +patternProperties: + "^(channel@)[0-7]$": + type: object + description: Child node to describe a channel + properties: + reg: + minimum: 0 + maximum: 7 + + adi,mode: + $ref: /schemas/types.yaml#/definitions/uint32 + enum: [0, 1, 2, 3, 8] + description: | + Mode or function of this channel. + Macros specifying the valid values can be found in + <dt-bindings/iio/adi,ad5592r.h>. + + The following values are currently supported: + * CH_MODE_UNUSED (the pin is unused) + * CH_MODE_ADC (the pin is ADC input) + * CH_MODE_DAC (the pin is DAC output) + * CH_MODE_DAC_AND_ADC (the pin is DAC output but can be monitored + by an ADC, since there is no disadvantage this should be + considered as the preferred DAC mode) + * CH_MODE_GPIO (the pin is registered with GPIOLIB) + + adi,off-state: + $ref: /schemas/types.yaml#/definitions/uint32 + enum: [0, 1, 2, 3] + description: | + State of this channel when unused or the device gets removed. + Macros specifying the valid values can be found in + <dt-bindings/iio/adi,ad5592r.h>. + * CH_OFFSTATE_PULLDOWN (the pin is pulled down) + * CH_OFFSTATE_OUT_LOW (the pin is output low) + * CH_OFFSTATE_OUT_HIGH (the pin is output high) + * CH_OFFSTATE_OUT_TRISTATE (the pin is tristated output) + + required: + - reg + - adi,mode + + additionalProperties: false + +examples: + - | + #include <dt-bindings/iio/adi,ad5592r.h> + spi { + #address-cells = <1>; + #size-cells = <0>; + + addac@0 { + compatible = "adi,ad5592r"; + #size-cells = <0>; + #address-cells = <1>; + #gpio-cells = <2>; + reg = <0>; + + spi-max-frequency = <1000000>; + spi-cpol; + + vref-supply = <&vref>; + reset-gpios = <&gpio0 86 0>; + gpio-controller; + + channel@0 { + reg = <0>; + adi,mode = <CH_MODE_DAC>; + }; + channel@1 { + reg = <1>; + adi,mode = <CH_MODE_ADC>; + }; + channel@2 { + reg = <2>; + adi,mode = <CH_MODE_DAC_AND_ADC>; + }; + channel@3 { + reg = <3>; + adi,mode = <CH_MODE_DAC_AND_ADC>; + adi,off-state = <CH_OFFSTATE_PULLDOWN>; + }; + channel@4 { + reg = <4>; + adi,mode = <CH_MODE_UNUSED>; + adi,off-state = <CH_OFFSTATE_PULLDOWN>; + }; + channel@5 { + reg = <5>; + adi,mode = <CH_MODE_GPIO>; + adi,off-state = <CH_OFFSTATE_PULLDOWN>; + }; + channel@6 { + reg = <6>; + adi,mode = <CH_MODE_GPIO>; + adi,off-state = <CH_OFFSTATE_PULLDOWN>; + }; + channel@7 { + reg = <7>; + adi,mode = <CH_MODE_GPIO>; + adi,off-state = <CH_OFFSTATE_PULLDOWN>; + }; + }; + ad5593r@10 { + compatible = "adi,ad5593r"; + #size-cells = <0>; + #address-cells = <1>; + #gpio-cells = <2>; + reg = <0x10>; + gpio-controller; + + channel@0 { + reg = <0>; + adi,mode = <CH_MODE_DAC>; + adi,off-state = <CH_OFFSTATE_PULLDOWN>; + }; + channel@1 { + reg = <1>; + adi,mode = <CH_MODE_ADC>; + adi,off-state = <CH_OFFSTATE_PULLDOWN>; + }; + channel@2 { + reg = <2>; + adi,mode = <CH_MODE_DAC_AND_ADC>; + adi,off-state = <CH_OFFSTATE_PULLDOWN>; + }; + channel@6 { + reg = <6>; + adi,mode = <CH_MODE_GPIO>; + adi,off-state = <CH_OFFSTATE_PULLDOWN>; + }; + }; + }; +... diff --git a/Documentation/devicetree/bindings/iio/dac/adi,ad5624r.yaml b/Documentation/devicetree/bindings/iio/dac/adi,ad5624r.yaml new file mode 100644 index 000000000..4d5111a5f --- /dev/null +++ b/Documentation/devicetree/bindings/iio/dac/adi,ad5624r.yaml @@ -0,0 +1,48 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/iio/dac/adi,ad5624r.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Analog Devices AD5624r and similar DACs + +maintainers: + - Jonathan Cameron <jic23@kernel.org> + +properties: + compatible: + enum: + - adi,ad5624r3 + - adi,ad5644r3 + - adi,ad5664r3 + - adi,ad5624r5 + - adi,ad5644r5 + - adi,ad5664r5 + + reg: + maxItems: 1 + + vref-supply: + description: If not present, internal reference will be used. + +required: + - compatible + - reg + +allOf: + - $ref: /schemas/spi/spi-peripheral-props.yaml# + +unevaluatedProperties: false + +examples: + - | + spi { + #address-cells = <1>; + #size-cells = <0>; + dac@0 { + reg = <0>; + compatible = "adi,ad5624r3"; + vref-supply = <&vref>; + }; + }; +... diff --git a/Documentation/devicetree/bindings/iio/dac/adi,ad5686.yaml b/Documentation/devicetree/bindings/iio/dac/adi,ad5686.yaml new file mode 100644 index 000000000..13f214234 --- /dev/null +++ b/Documentation/devicetree/bindings/iio/dac/adi,ad5686.yaml @@ -0,0 +1,76 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/iio/dac/adi,ad5686.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Analog Devices AD5360 and similar DACs + +maintainers: + - Michael Hennerich <michael.hennerich@analog.com> + - Jonathan Cameron <jic23@kernel.org> + +properties: + compatible: + oneOf: + - description: SPI devices + enum: + - adi,ad5310r + - adi,ad5672r + - adi,ad5674r + - adi,ad5676 + - adi,ad5676r + - adi,ad5679r + - adi,ad5681r + - adi,ad5682r + - adi,ad5683 + - adi,ad5683r + - adi,ad5684 + - adi,ad5684r + - adi,ad5685r + - adi,ad5686 + - adi,ad5686r + - description: I2C devices + enum: + - adi,ad5311r + - adi,ad5338r + - adi,ad5671r + - adi,ad5675r + - adi,ad5691r + - adi,ad5692r + - adi,ad5693 + - adi,ad5693r + - adi,ad5694 + - adi,ad5694r + - adi,ad5695r + - adi,ad5696 + - adi,ad5696r + + + reg: + maxItems: 1 + + vcc-supply: + description: If not supplied the internal reference is used. + +required: + - compatible + - reg + +allOf: + - $ref: /schemas/spi/spi-peripheral-props.yaml# + +unevaluatedProperties: false + +examples: + - | + spi { + #address-cells = <1>; + #size-cells = <0>; + dac@0 { + reg = <0>; + compatible = "adi,ad5310r"; + vcc-supply = <&dac_vref0>; + }; + }; +... diff --git a/Documentation/devicetree/bindings/iio/dac/adi,ad5696.yaml b/Documentation/devicetree/bindings/iio/dac/adi,ad5696.yaml new file mode 100644 index 000000000..56b0cda0f --- /dev/null +++ b/Documentation/devicetree/bindings/iio/dac/adi,ad5696.yaml @@ -0,0 +1,57 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/iio/dac/adi,ad5696.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Analog Devices AD5696 and similar multi-channel DACs + +maintainers: + - Michael Auchter <michael.auchter@ni.com> + +description: | + Binding for Analog Devices AD5696 and similar multi-channel DACs + +properties: + compatible: + enum: + - adi,ad5311r + - adi,ad5338r + - adi,ad5671r + - adi,ad5675r + - adi,ad5691r + - adi,ad5692r + - adi,ad5693 + - adi,ad5693r + - adi,ad5694 + - adi,ad5694r + - adi,ad5695r + - adi,ad5696 + - adi,ad5696r + + reg: + maxItems: 1 + + vcc-supply: + description: | + The regulator supply for DAC reference voltage. + +required: + - compatible + - reg + +additionalProperties: false + +examples: + - | + i2c { + #address-cells = <1>; + #size-cells = <0>; + + ad5696: dac@0 { + compatible = "adi,ad5696"; + reg = <0>; + vcc-supply = <&dac_vref>; + }; + }; +... diff --git a/Documentation/devicetree/bindings/iio/dac/adi,ad5755.yaml b/Documentation/devicetree/bindings/iio/dac/adi,ad5755.yaml new file mode 100644 index 000000000..9a3c2926b --- /dev/null +++ b/Documentation/devicetree/bindings/iio/dac/adi,ad5755.yaml @@ -0,0 +1,169 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/iio/dac/adi,ad5755.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Analog Devices AD5755 Multi-Channel DAC + +maintainers: + - Sean Nyekjaer <sean.nyekjaer@prevas.dk> + +properties: + compatible: + enum: + - adi,ad5755 + - adi,ad5755-1 + - adi,ad5757 + - adi,ad5735 + - adi,ad5737 + + reg: + maxItems: 1 + + spi-cpha: + description: Either this or spi-cpol but not both. + spi-cpol: true + + adi,ext-dc-dc-compenstation-resistor: + $ref: /schemas/types.yaml#/definitions/flag + description: + Set if the hardware have an external resistor and thereby bypasses + the internal compensation resistor. + + adi,dc-dc-phase: + $ref: /schemas/types.yaml#/definitions/uint32 + enum: [0, 1, 2, 3] + description: | + Valid values for DC DC Phase control is: + 0: All dc-to-dc converters clock on the same edge. + 1: Channel A and Channel B clock on the same edge, + Channel C and Channel D clock on opposite edges. + 2: Channel A and Channel C clock on the same edge, + Channel B and Channel D clock on opposite edges. + 3: Channel A, Channel B, Channel C, and Channel D + clock 90 degrees out of phase from each other. + + adi,dc-dc-freq-hz: + enum: [250000, 410000, 650000] + + adi,dc-dc-max-microvolt: + description: + Maximum allowed Vboost voltage supplied by the dc-to-dc converter. + enum: [23000000, 24500000, 27000000, 29500000] + + "#address-cells": + const: 1 + + "#size-cells": + const: 0 + + "#io-channel-cells": + const: 1 + +required: + - compatible + - reg + +patternProperties: + "^channel@[0-7]$": + type: object + description: Child node to describe a channel + properties: + reg: + maxItems: 1 + + adi,mode: + $ref: /schemas/types.yaml#/definitions/uint32 + minimum: 0 + maximum: 6 + description: | + Valid values for DAC modes is: + 0: 0 V to 5 V voltage range. + 1: 0 V to 10 V voltage range. + 2: Plus minus 5 V voltage range. + 3: Plus minus 10 V voltage range. + 4: 4 mA to 20 mA current range. + 5: 0 mA to 20 mA current range. + 6: 0 mA to 24 mA current range. + + adi,ext-current-sense-resistor: + $ref: /schemas/types.yaml#/definitions/flag + description: + Set if the hardware has an external current sense resistor + + adi,enable-voltage-overrange: + $ref: /schemas/types.yaml#/definitions/flag + description: Enable voltage overrange + + adi,slew: + $ref: /schemas/types.yaml#/definitions/uint32-array + description: | + Array of slewrate settings should contain 3 fields: + 1: Should be either 0 or 1 in order to enable or disable slewrate. + 2: Slew rate update frequency + 3: Slew step size + items: + - enum: [0, 1] + - enum: [64000, 32000, 16000, 8000, 4000, 2000, 1000, 500, 250, 125, 64, 32, 16, 8, 4, 0] + - enum: [1, 2, 4, 16, 32, 64, 128, 256] + + required: + - reg + + additionalProperties: false + +oneOf: + - required: + - spi-cpha + - required: + - spi-cpol + +allOf: + - $ref: /schemas/spi/spi-peripheral-props.yaml# + +unevaluatedProperties: false + +examples: + - | + spi { + #address-cells = <1>; + #size-cells = <0>; + + dac@0 { + #address-cells = <1>; + #size-cells = <0>; + compatible = "adi,ad5755"; + reg = <0>; + spi-max-frequency = <1000000>; + spi-cpha; + adi,dc-dc-phase = <0>; + adi,dc-dc-freq-hz = <410000>; + adi,dc-dc-max-microvolt = <23000000>; + channel@0 { + reg = <0>; + adi,mode = <4>; + adi,ext-current-sense-resistor; + adi,slew = <0 64000 1>; + }; + channel@1 { + reg = <1>; + adi,mode = <4>; + adi,ext-current-sense-resistor; + adi,slew = <0 64000 1>; + }; + channel@2 { + reg = <2>; + adi,mode = <4>; + adi,ext-current-sense-resistor; + adi,slew = <0 64000 1>; + }; + channel@3 { + reg = <3>; + adi,mode = <4>; + adi,ext-current-sense-resistor; + adi,slew = <0 64000 1>; + }; + }; + }; +... diff --git a/Documentation/devicetree/bindings/iio/dac/adi,ad5758.yaml b/Documentation/devicetree/bindings/iio/dac/adi,ad5758.yaml new file mode 100644 index 000000000..e49e75561 --- /dev/null +++ b/Documentation/devicetree/bindings/iio/dac/adi,ad5758.yaml @@ -0,0 +1,140 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/iio/dac/adi,ad5758.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Analog Devices AD5758 DAC + +maintainers: + - Michael Hennerich <Michael.Hennerich@analog.com> + +properties: + compatible: + const: adi,ad5758 + + reg: + maxItems: 1 + + spi-cpha: true + + adi,dc-dc-mode: + $ref: /schemas/types.yaml#/definitions/uint32 + enum: [1, 2, 3] + description: | + Mode of operation of the dc-to-dc converter + Dynamic Power Control (DPC) + In this mode, the AD5758 circuitry senses the output voltage and + dynamically regulates the supply voltage, VDPC+, to meet compliance + requirements plus an optimized headroom voltage for the output buffer. + + Programmable Power Control (PPC) + In this mode, the VDPC+ voltage is user-programmable to a fixed level + that needs to accommodate the maximum output load required. + + The output of the DAC core is either converted to a current or + voltage output at the VIOUT pin. Only one mode can be enabled at + any one time. + + The following values are currently supported: + * 1: DPC current mode + * 2: DPC voltage mode + * 3: PPC current mode + + Depending on the selected output mode (voltage or current) one of the + two properties must be present: + + adi,range-microvolt: + description: | + Voltage output range specified as <minimum, maximum> + oneOf: + - items: + - const: 0 + - enum: [5000000, 10000000] + - items: + - const: -5000000 + - const: 5000000 + - items: + - const: -10000000 + - const: 10000000 + + adi,range-microamp: + description: | + Current output range specified as <minimum, maximum> + oneOf: + - items: + - const: 0 + - enum: [20000, 24000] + - items: + - const: 4 + - const: 24000 + - items: + - const: -20000 + - const: 20000 + - items: + - const: -24000 + - const: 24000 + - items: + - const: -1000 + - const: 22000 + + reset-gpios: true + + adi,dc-dc-ilim-microamp: + enum: [150000, 200000, 250000, 300000, 350000, 400000] + description: | + The dc-to-dc converter current limit. + + adi,slew-time-us: + description: | + The time it takes for the output to reach the full scale [uS] + minimum: 133 + maximum: 1023984375 + +required: + - compatible + - reg + - spi-cpha + - adi,dc-dc-mode + +allOf: + - $ref: /schemas/spi/spi-peripheral-props.yaml# + - if: + properties: + adi,dc-dc-mode: + contains: + enum: [1, 3] + then: + properties: + adi,range-microvolt: false + required: + - adi,range-microamp + else: + properties: + adi,range-microamp: false + required: + - adi,range-microvolt + +unevaluatedProperties: false + +examples: + - | + spi { + #address-cells = <1>; + #size-cells = <0>; + + dac@0 { + compatible = "adi,ad5758"; + reg = <0>; + spi-max-frequency = <1000000>; + spi-cpha; + + reset-gpios = <&gpio 22 0>; + + adi,dc-dc-mode = <2>; + adi,range-microvolt = <0 10000000>; + adi,dc-dc-ilim-microamp = <200000>; + adi,slew-time-us = <125000>; + }; + }; +... diff --git a/Documentation/devicetree/bindings/iio/dac/adi,ad5761.yaml b/Documentation/devicetree/bindings/iio/dac/adi,ad5761.yaml new file mode 100644 index 000000000..df550b5af --- /dev/null +++ b/Documentation/devicetree/bindings/iio/dac/adi,ad5761.yaml @@ -0,0 +1,59 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/iio/dac/adi,ad5761.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Analog Devices AD5761 and similar DACs + +maintainers: + - Ricardo Ribalda <ribalda@kernel.org> + - Jonathan Cameron <jic23@kernel.org> + +properties: + + compatible: + enum: + - adi,ad5721 + - adi,ad5721r + - adi,ad5761 + - adi,ad5761r + + reg: + maxItems: 1 + + vref-supply: + description: If not supplied, internal reference will be used. + +required: + - compatible + - reg + +allOf: + - $ref: /schemas/spi/spi-peripheral-props.yaml# + - if: + properties: + compatible: + contains: + enum: + - adi,ad5721 + - adi,ad5761 + then: + required: + - vref-supply + +unevaluatedProperties: false + +examples: + - | + spi { + #address-cells = <1>; + #size-cells = <0>; + + dac@0 { + compatible = "adi,ad5721"; + reg = <0>; + vref-supply = <&dac_vref>; + }; + }; +... diff --git a/Documentation/devicetree/bindings/iio/dac/adi,ad5764.yaml b/Documentation/devicetree/bindings/iio/dac/adi,ad5764.yaml new file mode 100644 index 000000000..0b409a727 --- /dev/null +++ b/Documentation/devicetree/bindings/iio/dac/adi,ad5764.yaml @@ -0,0 +1,61 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/iio/dac/adi,ad5764.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Analog Devices AD5744 and AD5764 DAC families + +maintainers: + - Lars-Peter Clausen <lars@metafoo.de> + - Jonathan Cameron <jic23@kernel.org> + +properties: + + compatible: + enum: + - adi,ad5744 + - adi,ad5744r + - adi,ad5764 + - adi,ad5764r + + reg: + maxItems: 1 + + vrefAB-supply: true + vrefCD-supply: true + +required: + - compatible + - reg + +allOf: + - $ref: /schemas/spi/spi-peripheral-props.yaml# + - if: + properties: + compatible: + contains: + enum: + - adi,ad5744 + - adi,ad5764 + then: + required: + - vrefAB-supply + - vrefCD-supply + +unevaluatedProperties: false + +examples: + - | + spi { + #address-cells = <1>; + #size-cells = <0>; + + dac@0 { + compatible = "adi,ad5744"; + reg = <0>; + vrefAB-supply = <&dac_vref>; + vrefCD-supply = <&dac_vref>; + }; + }; +... diff --git a/Documentation/devicetree/bindings/iio/dac/adi,ad5766.yaml b/Documentation/devicetree/bindings/iio/dac/adi,ad5766.yaml new file mode 100644 index 000000000..29bd16dab --- /dev/null +++ b/Documentation/devicetree/bindings/iio/dac/adi,ad5766.yaml @@ -0,0 +1,65 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +# Copyright 2020 Analog Devices Inc. +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/iio/dac/adi,ad5766.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Analog Devices AD5766 DAC device driver + +maintainers: + - Cristian Pop <cristian.pop@analog.com> + +description: | + Bindings for the Analog Devices AD5766 current DAC device. Datasheet can be + found here: + https://www.analog.com/media/en/technical-documentation/data-sheets/ad5766-5767.pdf + +properties: + compatible: + enum: + - adi,ad5766 + - adi,ad5767 + + output-range-microvolts: + $ref: /schemas/types.yaml#/definitions/int32-array + maxItems: 2 + description: Select converter output range. + + reg: + maxItems: 1 + + spi-max-frequency: + maximum: 1000000 + + spi-cpol: true + + reset-gpios: + description: GPIO spec for the RESET pin. As the line is active low, it + should be marked GPIO_ACTIVE_LOW. + maxItems: 1 + +required: + - compatible + - output-range-microvolts + - reg + - spi-max-frequency + - spi-cpol + +additionalProperties: false + +examples: + - | + spi { + #address-cells = <1>; + #size-cells = <0>; + + ad5766@0 { + compatible = "adi,ad5766"; + output-range-microvolts = <(-5000000) 5000000>; + reg = <0>; + spi-cpol; + spi-max-frequency = <1000000>; + reset-gpios = <&gpio 22 0>; + }; + }; diff --git a/Documentation/devicetree/bindings/iio/dac/adi,ad5770r.yaml b/Documentation/devicetree/bindings/iio/dac/adi,ad5770r.yaml new file mode 100644 index 000000000..8e7da0de9 --- /dev/null +++ b/Documentation/devicetree/bindings/iio/dac/adi,ad5770r.yaml @@ -0,0 +1,195 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +# Copyright 2020 Analog Devices Inc. +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/iio/dac/adi,ad5770r.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Analog Devices AD5770R DAC device driver + +maintainers: + - Alexandru Tachici <alexandru.tachici@analog.com> + +description: | + Bindings for the Analog Devices AD5770R current DAC device. Datasheet can be + found here: + https://www.analog.com/media/en/technical-documentation/data-sheets/AD5770R.pdf + +properties: + compatible: + enum: + - adi,ad5770r + + reg: + maxItems: 1 + + avdd-supply: + description: + AVdd voltage supply. Represents two different supplies in the datasheet + that are in fact the same. + + iovdd-supply: + description: + Voltage supply for the chip interface. + + vref-supply: + description: Specify the voltage of the external reference used. + Available reference options are 1.25 V or 2.5 V. If no + external reference declared then the device will use the + internal reference of 1.25 V. + + adi,external-resistor: + description: Specify if an external 2.5k ohm resistor is used. If not + specified the device will use an internal 2.5k ohm resistor. + The precision resistor is used for reference current generation. + type: boolean + + reset-gpios: + description: GPIO spec for the RESET pin. If specified, it will be + asserted during driver probe. + maxItems: 1 + + '#address-cells': + const: 1 + + '#size-cells': + const: 0 + + channel@0: + description: Represents an external channel which are + connected to the DAC. Channel 0 can act both as a current + source and sink. + type: object + additionalProperties: false + + properties: + reg: + description: This represents the channel number. + const: 0 + + adi,range-microamp: + description: Output range of the channel. + oneOf: + - items: + - const: 0 + - const: 300000 + - items: + - const: -60000 + - const: 0 + - items: + - const: -60000 + - const: 300000 + + channel@1: + description: Represents an external channel which are + connected to the DAC. + type: object + additionalProperties: false + + properties: + reg: + description: This represents the channel number. + const: 1 + + adi,range-microamp: + description: Output range of the channel. + items: + - const: 0 + - enum: [140000, 250000] + + channel@2: + description: Represents an external channel which are + connected to the DAC. + type: object + additionalProperties: false + + properties: + reg: + description: This represents the channel number. + const: 2 + + adi,range-microamp: + description: Output range of the channel. + items: + - const: 0 + - enum: [55000, 150000] + +patternProperties: + "^channel@([3-5])$": + type: object + additionalProperties: false + description: Represents the external channels which are connected to the DAC. + properties: + reg: + description: This represents the channel number. + minimum: 3 + maximum: 5 + + adi,range-microamp: + description: Output range of the channel. + items: + - const: 0 + - enum: [45000, 100000] + +required: + - reg + - channel@0 + - channel@1 + - channel@2 + - channel@3 + - channel@4 + - channel@5 + +allOf: + - $ref: /schemas/spi/spi-peripheral-props.yaml# + +unevaluatedProperties: false + +examples: + - | + spi { + #address-cells = <1>; + #size-cells = <0>; + + ad5770r@0 { + compatible = "adi,ad5770r"; + reg = <0>; + spi-max-frequency = <1000000>; + vref-supply = <&vref>; + adi,external-resistor; + reset-gpios = <&gpio 22 0>; + #address-cells = <1>; + #size-cells = <0>; + + channel@0 { + reg = <0>; + adi,range-microamp = <0 300000>; + }; + + channel@1 { + reg = <1>; + adi,range-microamp = <0 140000>; + }; + + channel@2 { + reg = <2>; + adi,range-microamp = <0 55000>; + }; + + channel@3 { + reg = <3>; + adi,range-microamp = <0 45000>; + }; + + channel@4 { + reg = <4>; + adi,range-microamp = <0 45000>; + }; + + channel@5 { + reg = <5>; + adi,range-microamp = <0 45000>; + }; + }; + }; +... diff --git a/Documentation/devicetree/bindings/iio/dac/adi,ad5791.yaml b/Documentation/devicetree/bindings/iio/dac/adi,ad5791.yaml new file mode 100644 index 000000000..3a8473973 --- /dev/null +++ b/Documentation/devicetree/bindings/iio/dac/adi,ad5791.yaml @@ -0,0 +1,53 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/iio/dac/adi,ad5791.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Analog Devices AD5791 and similar DACs + +maintainers: + - Michael Hennerich <michael.hennerich@analog.com> + - Jonathan Cameron <jic23@kernel.org> + +properties: + + compatible: + enum: + - adi,ad5760 + - adi,ad5780 + - adi,ad5781 + - adi,ad5790 + - adi,ad5791 + + reg: + maxItems: 1 + + vdd-supply: true + vss-supply: true + +required: + - compatible + - reg + - vdd-supply + - vss-supply + +allOf: + - $ref: /schemas/spi/spi-peripheral-props.yaml# + +unevaluatedProperties: false + +examples: + - | + spi { + #address-cells = <1>; + #size-cells = <0>; + + dac@0 { + compatible = "adi,ad5791"; + reg = <0>; + vss-supply = <&dac_vss>; + vdd-supply = <&dac_vdd>; + }; + }; +... diff --git a/Documentation/devicetree/bindings/iio/dac/adi,ad7293.yaml b/Documentation/devicetree/bindings/iio/dac/adi,ad7293.yaml new file mode 100644 index 000000000..5ee80bf6a --- /dev/null +++ b/Documentation/devicetree/bindings/iio/dac/adi,ad7293.yaml @@ -0,0 +1,61 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/iio/dac/adi,ad7293.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: AD7293 12-Bit Power Amplifier Current Controller with ADC, + DACs, Temperature and Current Sensors + +maintainers: + - Antoniu Miclaus <antoniu.miclaus@analog.com> + +description: | + Power Amplifier drain current controller containing functionality + for general-purpose monitoring and control of current, voltage, + and temperature, integrated into a single chip solution with an + SPI-compatible interface. + + https://www.analog.com/en/products/ad7293.html + +properties: + compatible: + enum: + - adi,ad7293 + + avdd-supply: true + + vdrive-supply: true + + reset-gpios: + maxItems: 1 + + reg: + maxItems: 1 + + spi-max-frequency: + maximum: 1000000 + +required: + - compatible + - reg + - avdd-supply + - vdrive-supply + +additionalProperties: false + +examples: + - | + spi { + #address-cells = <1>; + #size-cells = <0>; + ad7293@0 { + compatible = "adi,ad7293"; + reg = <0>; + spi-max-frequency = <1000000>; + avdd-supply = <&avdd>; + vdrive-supply = <&vdrive>; + reset-gpios = <&gpio 10 0>; + }; + }; +... diff --git a/Documentation/devicetree/bindings/iio/dac/adi,ad7303.yaml b/Documentation/devicetree/bindings/iio/dac/adi,ad7303.yaml new file mode 100644 index 000000000..1f0037152 --- /dev/null +++ b/Documentation/devicetree/bindings/iio/dac/adi,ad7303.yaml @@ -0,0 +1,50 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/iio/dac/adi,ad7303.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Analog Devices AD7303 DAC + +maintainers: + - Lars-Peter Clausen <lars@metafoo.de> + +properties: + compatible: + const: adi,ad7303 + + reg: + maxItems: 1 + + Vdd-supply: + description: + Used to calculate output channel scalling if REF-supply not specified. + REF-supply: + description: + If not provided, Vdd/2 is used as the reference voltage. + + spi-max-frequency: + maximum: 30000000 + +required: + - compatible + - reg + - Vdd-supply + +additionalProperties: false + +examples: + - | + spi { + #address-cells = <1>; + #size-cells = <0>; + + dac@4 { + compatible = "adi,ad7303"; + reg = <4>; + spi-max-frequency = <10000000>; + Vdd-supply = <&vdd_supply>; + REF-supply = <&vref_supply>; + }; + }; +... diff --git a/Documentation/devicetree/bindings/iio/dac/adi,ad8801.yaml b/Documentation/devicetree/bindings/iio/dac/adi,ad8801.yaml new file mode 100644 index 000000000..1849a2ff0 --- /dev/null +++ b/Documentation/devicetree/bindings/iio/dac/adi,ad8801.yaml @@ -0,0 +1,59 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/iio/dac/adi,ad8801.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Analog Devices AD8801 and AD8803 DACs + +maintainers: + - Jonathan Cameron <jic23@kernel.org> + +properties: + + compatible: + enum: + - adi,ad8801 + - adi,ad8803 + + reg: + maxItems: 1 + + vrefh-supply: true + vrefl-supply: true + +required: + - compatible + - reg + - vrefh-supply + +allOf: + - $ref: /schemas/spi/spi-peripheral-props.yaml# + - if: + properties: + compatible: + contains: + const: adi,ad8803 + then: + required: + - vrefl-supply + else: + properties: + vrefl-supply: false + +unevaluatedProperties: false + +examples: + - | + spi { + #address-cells = <1>; + #size-cells = <0>; + + dac@0 { + compatible = "adi,ad8803"; + reg = <0>; + vrefl-supply = <&dac_vrefl>; + vrefh-supply = <&dac_vrefh>; + }; + }; +... diff --git a/Documentation/devicetree/bindings/iio/dac/adi,ltc2688.yaml b/Documentation/devicetree/bindings/iio/dac/adi,ltc2688.yaml new file mode 100644 index 000000000..15cc6bf59 --- /dev/null +++ b/Documentation/devicetree/bindings/iio/dac/adi,ltc2688.yaml @@ -0,0 +1,147 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/iio/dac/adi,ltc2688.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Analog Devices LTC2688 DAC + +maintainers: + - Nuno Sá <nuno.sa@analog.com> + +description: | + Analog Devices LTC2688 16 channel, 16 bit, +-15V DAC + https://www.analog.com/media/en/technical-documentation/data-sheets/ltc2688.pdf + +properties: + compatible: + enum: + - adi,ltc2688 + + reg: + maxItems: 1 + + vcc-supply: + description: Analog Supply Voltage Input. + + iovcc-supply: + description: Digital Input/Output Supply Voltage. + + vref-supply: + description: + Reference Input/Output. The voltage at the REF pin sets the full-scale + range of all channels. If not provided the internal reference is used and + also provided on the VREF pin". + + clr-gpios: + description: + If specified, it will be asserted during driver probe. As the line is + active low, it should be marked GPIO_ACTIVE_LOW. + maxItems: 1 + + '#address-cells': + const: 1 + + '#size-cells': + const: 0 + +patternProperties: + "^channel@([0-9]|1[0-5])$": + type: object + additionalProperties: false + + properties: + reg: + description: The channel number representing the DAC output channel. + maximum: 15 + + adi,toggle-mode: + description: + Set the channel as a toggle enabled channel. Toggle operation enables + fast switching of a DAC output between two different DAC codes without + any SPI transaction. + type: boolean + + adi,output-range-microvolt: + description: Specify the channel output full scale range. + oneOf: + - items: + - const: 0 + - enum: [5000000, 10000000] + - items: + - const: -5000000 + - const: 5000000 + - items: + - const: -10000000 + - const: 10000000 + - items: + - const: -15000000 + - const: 15000000 + + adi,overrange: + description: Enable 5% overrange over the selected full scale range. + type: boolean + + clocks: + maxItems: 1 + + adi,toggle-dither-input: + description: + Selects the TGPx pin to be associated with this channel. This setting + only makes sense for toggle or dither enabled channels. If + @adi,toggle-mode is not set and this property is given, the channel is + assumed to be a dither capable channel. Note that multiple channels + can be mapped to the same pin. If this setting is given, the + respective @clock must also be provided. Mappings between this and + input pins + 0 - TGP1 + 1 - TGP2 + 2 - TGP3 + $ref: /schemas/types.yaml#/definitions/uint32 + enum: [0, 1, 2] + + dependencies: + adi,toggle-dither-input: [ clocks ] + + required: + - reg + +required: + - compatible + - reg + +additionalProperties: false + +examples: + - | + + spi { + #address-cells = <1>; + #size-cells = <0>; + ltc2688: ltc2688@0 { + compatible = "adi,ltc2688"; + reg = <0>; + + vcc-supply = <&vcc>; + iovcc-supply = <&vcc>; + vref-supply = <&vref>; + + #address-cells = <1>; + #size-cells = <0>; + channel@0 { + reg = <0>; + adi,toggle-mode; + adi,overrange; + }; + + channel@1 { + reg = <1>; + adi,output-range-microvolt = <0 10000000>; + + clocks = <&clock_tgp3>; + adi,toggle-dither-input = <2>; + }; + }; + }; + +... diff --git a/Documentation/devicetree/bindings/iio/dac/dpot-dac.yaml b/Documentation/devicetree/bindings/iio/dac/dpot-dac.yaml new file mode 100644 index 000000000..6a7ca8e43 --- /dev/null +++ b/Documentation/devicetree/bindings/iio/dac/dpot-dac.yaml @@ -0,0 +1,64 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/iio/dac/dpot-dac.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: DAC emulation using a digital potentiometer + +maintainers: + - Peter Rosin <peda@axentia.se> + +description: | + It is assumed that the dpot is used as a voltage divider between the + current dpot wiper setting and the maximum resistance of the dpot. The + divided voltage is provided by a vref regulator. + + .------. + .-----------. | | + | vref |--' .---. + | regulator |--. | | + '-----------' | | d | + | | p | + | | o | wiper + | | t |<---------+ + | | | + | '---' dac output voltage + | | + '------+------------+ + +properties: + compatible: + const: dpot-dac + + vref-supply: + description: Regulator supplying the voltage divider. + + io-channels: + maxItems: 1 + description: | + Channel node of the dpot to be used for the voltage division. + + io-channel-names: + const: dpot + + "#io-channel-cells": + const: 1 + +required: + - compatible + - vref-supply + - io-channels + - io-channel-names + +additionalProperties: false + +examples: + - | + dac { + compatible = "dpot-dac"; + vref-supply = <®_3v3>; + io-channels = <&dpot 0>; + io-channel-names = "dpot"; + }; +... diff --git a/Documentation/devicetree/bindings/iio/dac/fsl,vf610-dac.yaml b/Documentation/devicetree/bindings/iio/dac/fsl,vf610-dac.yaml new file mode 100644 index 000000000..999c715c6 --- /dev/null +++ b/Documentation/devicetree/bindings/iio/dac/fsl,vf610-dac.yaml @@ -0,0 +1,55 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/iio/dac/fsl,vf610-dac.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Freescale vf610 Digital to Analog Converter + +maintainers: + - Sanchayan Maity <maitysanchayan@gmail.com> + +properties: + compatible: + const: fsl,vf610-dac + + reg: + maxItems: 1 + + interrupts: + maxItems: 1 + + clocks: + maxItems: 1 + + clock-names: + const: dac + +required: + - compatible + - reg + - interrupts + - clocks + - clock-names + +additionalProperties: false + +examples: + - | + #include <dt-bindings/interrupt-controller/irq.h> + #include <dt-bindings/clock/vf610-clock.h> + bus@40000000 { + compatible = "fsl,aips-bus", "simple-bus"; + reg = <0x40000000 0x00070000>; + ranges; + #address-cells = <1>; + #size-cells = <1>; + dac@400cc000 { + compatible = "fsl,vf610-dac"; + reg = <0x400cc000 0x1000>; + interrupts = <55 IRQ_TYPE_LEVEL_HIGH>; + clock-names = "dac"; + clocks = <&clks VF610_CLK_DAC0>; + }; + }; +... diff --git a/Documentation/devicetree/bindings/iio/dac/lltc,ltc1660.yaml b/Documentation/devicetree/bindings/iio/dac/lltc,ltc1660.yaml new file mode 100644 index 000000000..133b0f867 --- /dev/null +++ b/Documentation/devicetree/bindings/iio/dac/lltc,ltc1660.yaml @@ -0,0 +1,51 @@ +# SPDX-License-Identifier: GPL-2.0 OR BSD-2-Clause +# Copyright 2019 Marcus Folkesson <marcus.folkesson@gmail.com> +%YAML 1.2 +--- +$id: "http://devicetree.org/schemas/iio/dac/lltc,ltc1660.yaml#" +$schema: "http://devicetree.org/meta-schemas/core.yaml#" + +title: Linear Technology Micropower octal 8-Bit and 10-Bit DACs + +maintainers: + - Marcus Folkesson <marcus.folkesson@gmail.com> + +description: | + Bindings for the Linear Technology Micropower octal 8-Bit and 10-Bit DAC. + Datasheet can be found here: https://www.analog.com/media/en/technical-documentation/data-sheets/166560fa.pdf + +properties: + compatible: + enum: + - lltc,ltc1660 + - lltc,ltc1665 + + reg: + maxItems: 1 + + spi-max-frequency: + maximum: 5000000 + + vref-supply: + description: Phandle to the external reference voltage supply. + +required: + - compatible + - reg + - vref-supply + +additionalProperties: false + +examples: + - | + spi { + #address-cells = <1>; + #size-cells = <0>; + + dac@0 { + compatible = "lltc,ltc1660"; + reg = <0>; + spi-max-frequency = <5000000>; + vref-supply = <&vref_reg>; + }; + }; diff --git a/Documentation/devicetree/bindings/iio/dac/lltc,ltc2632.yaml b/Documentation/devicetree/bindings/iio/dac/lltc,ltc2632.yaml new file mode 100644 index 000000000..b1eb77335 --- /dev/null +++ b/Documentation/devicetree/bindings/iio/dac/lltc,ltc2632.yaml @@ -0,0 +1,77 @@ +# SPDX-License-Identifier: GPL-2.0 OR BSD-2-Clause +%YAML 1.2 +--- +$id: "http://devicetree.org/schemas/iio/dac/lltc,ltc2632.yaml#" +$schema: "http://devicetree.org/meta-schemas/core.yaml#" + +title: Linear Technology LTC263x 12-/10-/8-Bit Rail-to-Rail DAC + +maintainers: + - Michael Hennerich <michael.hennerich@analog.com> + +description: | + Bindings for the Linear Technology LTC2632/2634/2636 DAC + Datasheet can be found here: https://www.analog.com/media/en/technical-documentation/data-sheets/LTC263[246].pdf + +properties: + compatible: + enum: + - lltc,ltc2632-l12 + - lltc,ltc2632-l10 + - lltc,ltc2632-l8 + - lltc,ltc2632-h12 + - lltc,ltc2632-h10 + - lltc,ltc2632-h8 + - lltc,ltc2634-l12 + - lltc,ltc2634-l10 + - lltc,ltc2634-l8 + - lltc,ltc2634-h12 + - lltc,ltc2634-h10 + - lltc,ltc2634-h8 + - lltc,ltc2636-l12 + - lltc,ltc2636-l10 + - lltc,ltc2636-l8 + - lltc,ltc2636-h12 + - lltc,ltc2636-h10 + - lltc,ltc2636-h8 + + reg: + maxItems: 1 + + spi-max-frequency: + maximum: 2000000 + + vref-supply: + description: + Phandle to the external reference voltage supply. This should + only be set if there is an external reference voltage connected to the VREF + pin. If the property is not set the internal reference is used. + +required: + - compatible + - reg + +additionalProperties: false + +examples: + - | + vref: regulator-vref { + compatible = "regulator-fixed"; + regulator-name = "vref-ltc2632"; + regulator-min-microvolt = <1250000>; + regulator-max-microvolt = <1250000>; + regulator-always-on; + }; + + spi { + #address-cells = <1>; + #size-cells = <0>; + + dac@0 { + compatible = "lltc,ltc2632-l12"; + reg = <0>; /* CS0 */ + spi-max-frequency = <1000000>; + vref-supply = <&vref>; + }; + }; +... diff --git a/Documentation/devicetree/bindings/iio/dac/maxim,ds4424.yaml b/Documentation/devicetree/bindings/iio/dac/maxim,ds4424.yaml new file mode 100644 index 000000000..264fa7c5f --- /dev/null +++ b/Documentation/devicetree/bindings/iio/dac/maxim,ds4424.yaml @@ -0,0 +1,45 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/iio/dac/maxim,ds4424.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Maxim Integrated DS4422/DS4424 7-bit Sink/Source Current DAC + +maintainers: + - Ismail Kose <ihkose@gmail.com> + +description: | + Datasheet publicly available at: + https://datasheets.maximintegrated.com/en/ds/DS4422-DS4424.pdf + +properties: + compatible: + enum: + - maxim,ds4422 + - maxim,ds4424 + + reg: + maxItems: 1 + + vcc-supply: true + +required: + - compatible + - reg + +additionalProperties: false + +examples: + - | + i2c { + #address-cells = <1>; + #size-cells = <0>; + + dac@10 { + compatible = "maxim,ds4424"; + reg = <0x10>; /* When A0, A1 pins are ground */ + vcc-supply = <&vcc_3v3>; + }; + }; +... diff --git a/Documentation/devicetree/bindings/iio/dac/maxim,max5821.yaml b/Documentation/devicetree/bindings/iio/dac/maxim,max5821.yaml new file mode 100644 index 000000000..c43fb5f3f --- /dev/null +++ b/Documentation/devicetree/bindings/iio/dac/maxim,max5821.yaml @@ -0,0 +1,44 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/iio/dac/maxim,max5821.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Maxim max5821 dual 10-bit DAC + +maintainers: + - Philippe Reynes <tremyfr@yahoo.fr> + +description: | + Datasheet publicly available at: + https://datasheets.maximintegrated.com/en/ds/MAX5821.pdf + +properties: + compatible: + const: maxim,max5821 + + reg: + maxItems: 1 + + vref-supply: true + +required: + - compatible + - reg + - vref-supply + +additionalProperties: false + +examples: + - | + i2c { + #address-cells = <1>; + #size-cells = <0>; + + dac@38 { + compatible = "maxim,max5821"; + reg = <0x38>; + vref-supply = <®_max5821>; + }; + }; +... diff --git a/Documentation/devicetree/bindings/iio/dac/microchip,mcp4725.yaml b/Documentation/devicetree/bindings/iio/dac/microchip,mcp4725.yaml new file mode 100644 index 000000000..5f5b57831 --- /dev/null +++ b/Documentation/devicetree/bindings/iio/dac/microchip,mcp4725.yaml @@ -0,0 +1,90 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/iio/dac/microchip,mcp4725.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Microchip mcp4725 and mcp4726 DAC + +maintainers: + - Tomas Novotny <tomas@novotny.cz> + +properties: + compatible: + enum: + - microchip,mcp4725 + - microchip,mcp4726 + + reg: + maxItems: 1 + + vdd-supply: + description: | + Provides both power and acts as the reference supply on the mcp4725. + For the mcp4726 it will be used as the reference voltage if vref-supply + is not provided. + + vref-supply: + description: + Vref pin is used as a voltage reference when this supply is specified. + + microchip,vref-buffered: + type: boolean + description: | + Enable buffering of the external Vref pin. This boolean is not valid + without the vref-supply. Quoting the datasheet: This is offered in + cases where the reference voltage does not have the current + capability not to drop its voltage when connected to the internal + resistor ladder circuit. + +allOf: + - if: + properties: + compatible: + contains: + const: microchip,mcp4725 + then: + properties: + vref-supply: false + required: + - vdd-supply + + - if: + properties: + compatible: + contains: + const: microchip,mcp4726 + then: + anyOf: + - required: + - vdd-supply + - required: + - vref-supply + + - if: + not: + required: + - vref-supply + then: + properties: + microchip,vref-buffered: false + +required: + - compatible + - reg + +additionalProperties: false + +examples: + - | + i2c { + #address-cells = <1>; + #size-cells = <0>; + + mcp4725@60 { + compatible = "microchip,mcp4725"; + reg = <0x60>; + vdd-supply = <&vdac_vdd>; + }; + }; +... diff --git a/Documentation/devicetree/bindings/iio/dac/microchip,mcp4922.yaml b/Documentation/devicetree/bindings/iio/dac/microchip,mcp4922.yaml new file mode 100644 index 000000000..19374401e --- /dev/null +++ b/Documentation/devicetree/bindings/iio/dac/microchip,mcp4922.yaml @@ -0,0 +1,48 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/iio/dac/microchip,mcp4922.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Microchip MCP4902, MCP4912 and MPC4922 dual output SPI DACs + +maintainers: + - Jonathan Cameron <jic23@kernel.org> + - Michael Welling <mwelling@ieee.org> + +properties: + compatible: + enum: + - microchip,mcp4902 + - microchip,mcp4912 + - microchip,mcp4921 + - microchip,mcp4922 + + reg: + maxItems: 1 + + vref-supply: true + +required: + - compatible + - reg + - vref-supply + +allOf: + - $ref: /schemas/spi/spi-peripheral-props.yaml# + +unevaluatedProperties: false + +examples: + - | + spi { + #address-cells = <1>; + #size-cells = <0>; + + dac@0 { + compatible = "microchip,mcp4912"; + reg = <0>; + vref-supply = <&dac_vref>; + }; + }; +... diff --git a/Documentation/devicetree/bindings/iio/dac/nxp,lpc1850-dac.yaml b/Documentation/devicetree/bindings/iio/dac/nxp,lpc1850-dac.yaml new file mode 100644 index 000000000..595f481c5 --- /dev/null +++ b/Documentation/devicetree/bindings/iio/dac/nxp,lpc1850-dac.yaml @@ -0,0 +1,58 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/iio/dac/nxp,lpc1850-dac.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: NXP LPC1850 DAC bindings + +maintainers: + - Jonathan Cameron <jic23@kernel.org> + +description: + Supports the DAC found on the LPC1850 SoC. + +properties: + compatible: + const: nxp,lpc1850-dac + + reg: + maxItems: 1 + + interrupts: + maxItems: 1 + + clocks: + maxItems: 1 + + vref-supply: true + + resets: + maxItems: 1 + +required: + - compatible + - reg + - interrupts + - clocks + - vref-supply + - resets + +additionalProperties: false + +examples: + - | + #include <dt-bindings/clock/lpc18xx-ccu.h> + soc { + #address-cells = <1>; + #size-cells = <1>; + dac: dac@400e1000 { + compatible = "nxp,lpc1850-dac"; + reg = <0x400e1000 0x1000>; + interrupts = <0>; + clocks = <&ccu1 CLK_APB3_DAC>; + vref-supply = <®_vdda>; + resets = <&rgu 42>; + }; + }; +... diff --git a/Documentation/devicetree/bindings/iio/dac/st,stm32-dac.yaml b/Documentation/devicetree/bindings/iio/dac/st,stm32-dac.yaml new file mode 100644 index 000000000..6adeda408 --- /dev/null +++ b/Documentation/devicetree/bindings/iio/dac/st,stm32-dac.yaml @@ -0,0 +1,110 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +%YAML 1.2 +--- +$id: "http://devicetree.org/schemas/iio/dac/st,stm32-dac.yaml#" +$schema: "http://devicetree.org/meta-schemas/core.yaml#" + +title: STMicroelectronics STM32 DAC bindings + +description: | + The STM32 DAC is a 12-bit voltage output digital-to-analog converter. The DAC + may be configured in 8 or 12-bit mode. It has two output channels, each with + its own converter. + It has built-in noise and triangle waveform generator and supports external + triggers for conversions. The DAC's output buffer allows a high drive output + current. + +maintainers: + - Fabrice Gasnier <fabrice.gasnier@foss.st.com> + +properties: + compatible: + enum: + - st,stm32f4-dac-core + - st,stm32h7-dac-core + + reg: + maxItems: 1 + + resets: + maxItems: 1 + + clocks: + maxItems: 1 + + clock-names: + items: + - const: pclk + + vref-supply: + description: Phandle to the vref input analog reference voltage. + + '#address-cells': + const: 1 + + '#size-cells': + const: 0 + +additionalProperties: false + +required: + - compatible + - reg + - clocks + - clock-names + - vref-supply + - '#address-cells' + - '#size-cells' + +patternProperties: + "^dac@[1-2]+$": + type: object + description: + A DAC block node should contain at least one subnode, representing an + DAC instance/channel available on the machine. + + properties: + compatible: + const: st,stm32-dac + + reg: + description: Must be either 1 or 2, to define (single) channel in use + enum: [1, 2] + + '#io-channel-cells': + const: 1 + + additionalProperties: false + + required: + - compatible + - reg + - '#io-channel-cells' + +examples: + - | + // Example on stm32mp157c + #include <dt-bindings/clock/stm32mp1-clks.h> + dac: dac@40017000 { + compatible = "st,stm32h7-dac-core"; + reg = <0x40017000 0x400>; + clocks = <&rcc DAC12>; + clock-names = "pclk"; + vref-supply = <&vref>; + #address-cells = <1>; + #size-cells = <0>; + + dac@1 { + compatible = "st,stm32-dac"; + #io-channel-cells = <1>; + reg = <1>; + }; + + dac@2 { + compatible = "st,stm32-dac"; + #io-channel-cells = <1>; + reg = <2>; + }; + }; + +... diff --git a/Documentation/devicetree/bindings/iio/dac/ti,dac082s085.yaml b/Documentation/devicetree/bindings/iio/dac/ti,dac082s085.yaml new file mode 100644 index 000000000..201b04af2 --- /dev/null +++ b/Documentation/devicetree/bindings/iio/dac/ti,dac082s085.yaml @@ -0,0 +1,73 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/iio/dac/ti,dac082s085.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Texas Instruments DAC082s085 and similar DACs + +description: + A family of Texas Instruments 8/10/12-bit 2/4-channel DACs + +maintainers: + - Lukas Wunner <lukas@wunner.de> + +properties: + compatible: + enum: + - ti,dac082s085 + - ti,dac102s085 + - ti,dac122s085 + - ti,dac084s085 + - ti,dac104s085 + - ti,dac124s085 + + reg: + maxItems: 1 + + spi-cpha: true + spi-cpol: + description: + Must be either spi-cpha, or spi-cpol but not both. + + vref-supply: + description: Needed to provide output scaling. + +required: + - compatible + - reg + - vref-supply + +oneOf: + - required: + - spi-cpha + - required: + - spi-cpol + +allOf: + - $ref: /schemas/spi/spi-peripheral-props.yaml# + +unevaluatedProperties: false + +examples: + - | + vref_2v5_reg: regulator-vref { + compatible = "regulator-fixed"; + regulator-name = "2v5"; + regulator-min-microvolt = <2500000>; + regulator-max-microvolt = <2500000>; + regulator-always-on; + }; + spi { + #address-cells = <1>; + #size-cells = <0>; + + dac@0 { + compatible = "ti,dac082s085"; + reg = <0>; + spi-max-frequency = <40000000>; + spi-cpol; + vref-supply = <&vref_2v5_reg>; + }; + }; +... diff --git a/Documentation/devicetree/bindings/iio/dac/ti,dac5571.yaml b/Documentation/devicetree/bindings/iio/dac/ti,dac5571.yaml new file mode 100644 index 000000000..88298bc43 --- /dev/null +++ b/Documentation/devicetree/bindings/iio/dac/ti,dac5571.yaml @@ -0,0 +1,53 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/iio/dac/ti,dac5571.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Texas Instruments DAC5571 Family + +maintainers: + - Sean Nyekjaer <sean@geanix.com> + +properties: + compatible: + enum: + - ti,dac5571 + - ti,dac6571 + - ti,dac7571 + - ti,dac5574 + - ti,dac6574 + - ti,dac7574 + - ti,dac5573 + - ti,dac6573 + - ti,dac7573 + - ti,dac121c081 + + reg: + maxItems: 1 + + vref-supply: + description: + Reference voltage must be supplied to establish the scaling of the + output voltage. + +required: + - compatible + - reg + - vref-supply + +additionalProperties: false + +examples: + - | + i2c { + #address-cells = <1>; + #size-cells = <0>; + + dac@4c { + compatible = "ti,dac5571"; + reg = <0x4C>; + vref-supply = <&vdd_supply>; + }; + }; +... diff --git a/Documentation/devicetree/bindings/iio/dac/ti,dac7311.yaml b/Documentation/devicetree/bindings/iio/dac/ti,dac7311.yaml new file mode 100644 index 000000000..a6814587d --- /dev/null +++ b/Documentation/devicetree/bindings/iio/dac/ti,dac7311.yaml @@ -0,0 +1,50 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/iio/dac/ti,dac7311.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Texas Instruments DAC5311 and similar SPI DACs + +maintainers: + - Charles-Antoine Couret <charles-antoine.couret@essensium.com> + +properties: + compatible: + enum: + - ti,dac7311 + - ti,dac6311 + - ti,dac5311 + + reg: + maxItems: 1 + + vref-supply: + description: + Reference voltage must be supplied to establish the scaling of the + output voltage. + +required: + - compatible + - reg + - vref-supply + +allOf: + - $ref: /schemas/spi/spi-peripheral-props.yaml# + +unevaluatedProperties: false + +examples: + - | + spi { + #address-cells = <1>; + #size-cells = <0>; + + dac@0 { + compatible = "ti,dac7311"; + reg = <0>; /* CS0 */ + spi-max-frequency = <1000000>; + vref-supply = <&vdd_supply>; + }; + }; +... diff --git a/Documentation/devicetree/bindings/iio/dac/ti,dac7512.yaml b/Documentation/devicetree/bindings/iio/dac/ti,dac7512.yaml new file mode 100644 index 000000000..4277cf8a4 --- /dev/null +++ b/Documentation/devicetree/bindings/iio/dac/ti,dac7512.yaml @@ -0,0 +1,42 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/iio/dac/ti,dac7512.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Texas Instruments DAC7512 DAC + +maintainers: + - Jonathan Cameron <jic23@kernel.org> + +properties: + compatible: + const: ti,dac7512 + + reg: + maxItems: 1 + + spi-max-frequency: + description: + Maximum frequency is reduced for supply voltage of less than 3.6V + maximum: 30000000 + +required: + - compatible + - reg + +additionalProperties: false + +examples: + - | + spi { + #address-cells = <1>; + #size-cells = <0>; + + dac@0 { + compatible = "ti,dac7512"; + reg = <0>; /* CS0 */ + spi-max-frequency = <1000000>; + }; + }; +... diff --git a/Documentation/devicetree/bindings/iio/dac/ti,dac7612.yaml b/Documentation/devicetree/bindings/iio/dac/ti,dac7612.yaml new file mode 100644 index 000000000..20dd13706 --- /dev/null +++ b/Documentation/devicetree/bindings/iio/dac/ti,dac7612.yaml @@ -0,0 +1,54 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/iio/dac/ti,dac7612.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Texas Instruments DAC7612 family of DACs + +description: + The DAC7612 is a dual, 12-bit digital-to-analog converter (DAC) with + guaranteed 12-bit monotonicity performance over the industrial temperature + range. Is is programmable through an SPI interface. + +maintainers: + - Ricardo Ribalda Delgado <ricardo@ribalda.com> + +properties: + compatible: + enum: + - ti,dac7612 + - ti,dac7612u + - ti,dac7612ub + + reg: + maxItems: 1 + + ti,loaddacs-gpios: + description: + DACs are loaded when the pin connected to this GPIO is pulled low. + maxItems: 1 + +required: + - compatible + - reg + +allOf: + - $ref: /schemas/spi/spi-peripheral-props.yaml# + +unevaluatedProperties: false + +examples: + - | + #include <dt-bindings/gpio/gpio.h> + spi { + #address-cells = <1>; + #size-cells = <0>; + + dac@1 { + compatible = "ti,dac7612"; + reg = <0x1>; + ti,loaddacs-gpios = <&msmgpio 25 GPIO_ACTIVE_LOW>; + }; + }; +... |