diff options
Diffstat (limited to 'Documentation/devicetree/bindings/iio/adc')
8 files changed, 250 insertions, 44 deletions
diff --git a/Documentation/devicetree/bindings/iio/adc/adi,ad7091r5.yaml b/Documentation/devicetree/bindings/iio/adc/adi,ad7091r5.yaml index ce7ba634643c..ddec9747436c 100644 --- a/Documentation/devicetree/bindings/iio/adc/adi,ad7091r5.yaml +++ b/Documentation/devicetree/bindings/iio/adc/adi,ad7091r5.yaml @@ -4,36 +4,92 @@ $id: http://devicetree.org/schemas/iio/adc/adi,ad7091r5.yaml# $schema: http://devicetree.org/meta-schemas/core.yaml# -title: Analog Devices AD7091R5 4-Channel 12-Bit ADC +title: Analog Devices AD7091R-2/-4/-5/-8 Multi-Channel 12-Bit ADCs maintainers: - Michael Hennerich <michael.hennerich@analog.com> + - Marcelo Schmitt <marcelo.schmitt@analog.com> description: | - Analog Devices AD7091R5 4-Channel 12-Bit ADC + Analog Devices AD7091R5 4-Channel 12-Bit ADC supporting I2C interface https://www.analog.com/media/en/technical-documentation/data-sheets/ad7091r-5.pdf + Analog Devices AD7091R-2/AD7091R-4/AD7091R-8 2-/4-/8-Channel 12-Bit ADCs + supporting SPI interface + https://www.analog.com/media/en/technical-documentation/data-sheets/AD7091R-2_7091R-4_7091R-8.pdf properties: compatible: enum: + - adi,ad7091r2 + - adi,ad7091r4 - adi,ad7091r5 + - adi,ad7091r8 reg: maxItems: 1 + vdd-supply: + description: + Provide VDD power to the sensor (VDD range is from 2.7V to 5.25V). + + vdrive-supply: + description: + Determines the voltage level at which the interface logic will operate. + The V_drive voltage range is from 1.8V to 5.25V and must not exceed VDD by + more than 0.3V. + vref-supply: description: Phandle to the vref power supply - interrupts: + convst-gpios: + description: + GPIO connected to the CONVST pin. + This logic input is used to initiate conversions on the analog + input channels. maxItems: 1 + reset-gpios: + maxItems: 1 + + interrupts: + description: + Interrupt for signaling when conversion results exceed the high limit for + ADC readings or fall below the low limit for them. Interrupt source must + be attached to ALERT/BUSY/GPO0 pin. + maxItems: 1 required: - compatible - reg -additionalProperties: false +allOf: + - $ref: /schemas/spi/spi-peripheral-props.yaml# + + # AD7091R-2 does not have ALERT/BUSY/GPO pin + - if: + properties: + compatible: + contains: + enum: + - adi,ad7091r2 + then: + properties: + interrupts: false + + - if: + properties: + compatible: + contains: + enum: + - adi,ad7091r2 + - adi,ad7091r4 + - adi,ad7091r8 + then: + required: + - convst-gpios + +unevaluatedProperties: false examples: - | @@ -51,4 +107,22 @@ examples: interrupt-parent = <&gpio>; }; }; + - | + #include <dt-bindings/gpio/gpio.h> + #include <dt-bindings/interrupt-controller/irq.h> + spi { + #address-cells = <1>; + #size-cells = <0>; + + adc@0 { + compatible = "adi,ad7091r8"; + reg = <0x0>; + spi-max-frequency = <1000000>; + vref-supply = <&adc_vref>; + convst-gpios = <&gpio 25 GPIO_ACTIVE_LOW>; + reset-gpios = <&gpio 27 GPIO_ACTIVE_LOW>; + interrupts = <22 IRQ_TYPE_EDGE_FALLING>; + interrupt-parent = <&gpio>; + }; + }; ... diff --git a/Documentation/devicetree/bindings/iio/adc/adi,ad7780.yaml b/Documentation/devicetree/bindings/iio/adc/adi,ad7780.yaml index 5fcc8dd012f1..be2616ff9af6 100644 --- a/Documentation/devicetree/bindings/iio/adc/adi,ad7780.yaml +++ b/Documentation/devicetree/bindings/iio/adc/adi,ad7780.yaml @@ -80,9 +80,9 @@ examples: compatible = "adi,ad7780"; reg = <0>; - avdd-supply = <&vdd_supply>; - powerdown-gpios = <&gpio0 12 GPIO_ACTIVE_HIGH>; - adi,gain-gpios = <&gpio1 5 GPIO_ACTIVE_LOW>; + avdd-supply = <&vdd_supply>; + powerdown-gpios = <&gpio0 12 GPIO_ACTIVE_HIGH>; + adi,gain-gpios = <&gpio1 5 GPIO_ACTIVE_LOW>; adi,filter-gpios = <&gpio2 15 GPIO_ACTIVE_LOW>; }; }; diff --git a/Documentation/devicetree/bindings/iio/adc/maxim,max34408.yaml b/Documentation/devicetree/bindings/iio/adc/maxim,max34408.yaml new file mode 100644 index 000000000000..4cba856e8d47 --- /dev/null +++ b/Documentation/devicetree/bindings/iio/adc/maxim,max34408.yaml @@ -0,0 +1,139 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/iio/adc/maxim,max34408.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Maxim MAX34408/MAX34409 current monitors with overcurrent control + +maintainers: + - Ivan Mikhaylov <fr0st61te@gmail.com> + +description: | + The MAX34408/MAX34409 are two- and four-channel current monitors that are + configured and monitored with a standard I2C/SMBus serial interface. Each + unidirectional current sensor offers precision high-side operation with a + low full-scale sense voltage. The devices automatically sequence through + two or four channels and collect the current-sense samples and average them + to reduce the effect of impulse noise. The raw ADC samples are compared to + user-programmable digital thresholds to indicate overcurrent conditions. + Overcurrent conditions trigger a hardware output to provide an immediate + indication to shut down any necessary external circuitry. + + Specifications about the devices can be found at: + https://www.analog.com/media/en/technical-documentation/data-sheets/MAX34408-MAX34409.pdf + +properties: + compatible: + enum: + - maxim,max34408 + - maxim,max34409 + + "#address-cells": + const: 1 + + "#size-cells": + const: 0 + + reg: + maxItems: 1 + + interrupts: + maxItems: 1 + + powerdown-gpios: + description: + Shutdown Output. Open-drain output. This output transitions to high impedance + when any of the digital comparator thresholds are exceeded as long as the ENA + pin is high. + maxItems: 1 + + powerdown-status-gpios: + description: + SHTDN Enable Input. CMOS digital input. Connect to GND to clear the latch and + unconditionally deassert (force low) the SHTDN output and reset the shutdown + delay. Connect to VDD to enable normal latch operation of the SHTDN output. + maxItems: 1 + + vdd-supply: true + +patternProperties: + "^channel@[0-3]$": + $ref: adc.yaml + type: object + description: + Represents the internal channels of the ADC. + + properties: + reg: + items: + - minimum: 0 + maximum: 3 + + maxim,rsense-val-micro-ohms: + description: + Adjust the Rsense value to monitor higher or lower current levels for + input. + enum: [250, 500, 1000, 5000, 10000, 50000, 100000, 200000, 500000] + default: 1000 + + required: + - reg + - maxim,rsense-val-micro-ohms + + unevaluatedProperties: false + +required: + - compatible + - reg + +allOf: + - if: + properties: + compatible: + contains: + const: maxim,max34408 + then: + patternProperties: + "^channel@[2-3]$": false + "^channel@[0-1]$": + properties: + reg: + maximum: 1 + else: + patternProperties: + "^channel@[0-3]$": + properties: + reg: + maximum: 3 + +additionalProperties: false + +examples: + - | + #include <dt-bindings/gpio/gpio.h> + + i2c { + #address-cells = <1>; + #size-cells = <0>; + + adc@1e { + compatible = "maxim,max34409"; + reg = <0x1e>; + powerdown-gpios = <&gpio0 1 GPIO_ACTIVE_LOW>; + powerdown-status-gpios = <&gpio0 2 GPIO_ACTIVE_HIGH>; + + #address-cells = <1>; + #size-cells = <0>; + + channel@0 { + reg = <0x0>; + maxim,rsense-val-micro-ohms = <5000>; + }; + + channel@1 { + reg = <0x1>; + maxim,rsense-val-micro-ohms = <10000>; + }; + }; + }; diff --git a/Documentation/devicetree/bindings/iio/adc/qcom,spmi-iadc.yaml b/Documentation/devicetree/bindings/iio/adc/qcom,spmi-iadc.yaml index 73def67fbe01..5ed893ef5c18 100644 --- a/Documentation/devicetree/bindings/iio/adc/qcom,spmi-iadc.yaml +++ b/Documentation/devicetree/bindings/iio/adc/qcom,spmi-iadc.yaml @@ -25,7 +25,7 @@ properties: - const: qcom,spmi-iadc reg: - description: IADC base address and length in the SPMI PMIC register map + description: IADC base address in the SPMI PMIC register map maxItems: 1 qcom,external-resistor-micro-ohms: @@ -50,15 +50,17 @@ additionalProperties: false examples: - | #include <dt-bindings/interrupt-controller/irq.h> - spmi { + + pmic { #address-cells = <1>; #size-cells = <0>; - pmic_iadc: adc@3600 { + + adc@3600 { compatible = "qcom,pm8941-iadc", "qcom,spmi-iadc"; reg = <0x3600>; interrupts = <0x0 0x36 0x0 IRQ_TYPE_EDGE_RISING>; qcom,external-resistor-micro-ohms = <10000>; - #io-channel-cells = <1>; + #io-channel-cells = <1>; }; }; ... diff --git a/Documentation/devicetree/bindings/iio/adc/qcom,spmi-rradc.yaml b/Documentation/devicetree/bindings/iio/adc/qcom,spmi-rradc.yaml index b3a626389870..f39bc92c2b99 100644 --- a/Documentation/devicetree/bindings/iio/adc/qcom,spmi-rradc.yaml +++ b/Documentation/devicetree/bindings/iio/adc/qcom,spmi-rradc.yaml @@ -43,9 +43,9 @@ examples: #address-cells = <1>; #size-cells = <0>; - pmic_rradc: adc@4500 { + adc@4500 { compatible = "qcom,pmi8998-rradc"; reg = <0x4500>; - #io-channel-cells = <1>; + #io-channel-cells = <1>; }; }; diff --git a/Documentation/devicetree/bindings/iio/adc/qcom,spmi-vadc.yaml b/Documentation/devicetree/bindings/iio/adc/qcom,spmi-vadc.yaml index ad7d6fc49de5..40fa0710f1f0 100644 --- a/Documentation/devicetree/bindings/iio/adc/qcom,spmi-vadc.yaml +++ b/Documentation/devicetree/bindings/iio/adc/qcom,spmi-vadc.yaml @@ -236,11 +236,11 @@ additionalProperties: false examples: - | - spmi { + pmic { #address-cells = <1>; #size-cells = <0>; - /* VADC node */ - pmic_vadc: adc@3100 { + + adc@3100 { compatible = "qcom,spmi-vadc"; reg = <0x3100>; interrupts = <0x0 0x31 0x0 0x1>; @@ -281,9 +281,10 @@ examples: #include <dt-bindings/iio/qcom,spmi-adc7-pm8350.h> #include <dt-bindings/interrupt-controller/irq.h> - spmi { + pmic { #address-cells = <1>; #size-cells = <0>; + adc@3100 { reg = <0x3100>; compatible = "qcom,spmi-adc7"; diff --git a/Documentation/devicetree/bindings/iio/adc/samsung,exynos-adc.yaml b/Documentation/devicetree/bindings/iio/adc/samsung,exynos-adc.yaml index 582d0a03b814..4e40f6bed5db 100644 --- a/Documentation/devicetree/bindings/iio/adc/samsung,exynos-adc.yaml +++ b/Documentation/devicetree/bindings/iio/adc/samsung,exynos-adc.yaml @@ -11,18 +11,23 @@ maintainers: properties: compatible: - enum: - - samsung,exynos-adc-v1 # Exynos5250 - - samsung,exynos-adc-v2 - - samsung,exynos3250-adc - - samsung,exynos4212-adc # Exynos4212 and Exynos4412 - - samsung,exynos7-adc - - samsung,s3c2410-adc - - samsung,s3c2416-adc - - samsung,s3c2440-adc - - samsung,s3c2443-adc - - samsung,s3c6410-adc - - samsung,s5pv210-adc + oneOf: + - enum: + - samsung,exynos-adc-v1 # Exynos5250 + - samsung,exynos-adc-v2 + - samsung,exynos3250-adc + - samsung,exynos4212-adc # Exynos4212 and Exynos4412 + - samsung,exynos7-adc + - samsung,s3c2410-adc + - samsung,s3c2416-adc + - samsung,s3c2440-adc + - samsung,s3c2443-adc + - samsung,s3c6410-adc + - samsung,s5pv210-adc + - items: + - enum: + - samsung,exynos5433-adc + - const: samsung,exynos7-adc reg: maxItems: 1 diff --git a/Documentation/devicetree/bindings/iio/adc/ti,palmas-gpadc.yaml b/Documentation/devicetree/bindings/iio/adc/ti,palmas-gpadc.yaml index 720c16a108d4..f94057d8f605 100644 --- a/Documentation/devicetree/bindings/iio/adc/ti,palmas-gpadc.yaml +++ b/Documentation/devicetree/bindings/iio/adc/ti,palmas-gpadc.yaml @@ -67,19 +67,4 @@ required: - compatible - "#io-channel-cells" -examples: - - | - #include <dt-bindings/clock/mt8183-clk.h> - pmic { - compatible = "ti,twl6035-pmic", "ti,palmas-pmic"; - adc { - compatible = "ti,palmas-gpadc"; - interrupts = <18 0>, - <16 0>, - <17 0>; - #io-channel-cells = <1>; - ti,channel0-current-microamp = <5>; - ti,channel3-current-microamp = <10>; - }; - }; ... |