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Message-ID: <20240912095435.18639-2-Mariel.Tinaco@analog.com>
Date: Thu, 12 Sep 2024 17:54:34 +0800
From: Mariel Tinaco <Mariel.Tinaco@...log.com>
To: <linux-iio@...r.kernel.org>, <devicetree@...r.kernel.org>,
<linux-kernel@...r.kernel.org>, Jonathan Cameron <jic23@...nel.org>,
Lars-Peter Clausen <lars@...afoo.de>, Rob Herring <robh@...nel.org>,
Krzysztof Kozlowski <krzk+dt@...nel.org>,
Michael Hennerich
<Michael.Hennerich@...log.com>,
Conor Dooley <conor+dt@...nel.org>,
"Marcelo
Schmitt" <marcelo.schmitt1@...il.com>,
Dimitri Fedrau
<dima.fedrau@...il.com>,
David Lechner <dlechner@...libre.com>,
Nuno Sá <noname.nuno@...il.com>
Subject: [PATCH v4 1/2] dt-bindings: iio: dac: add docs for ad8460
This adds the bindings documentation for the 14-bit
High Voltage, High Current, Waveform Generator
Digital-to-Analog converter.
Signed-off-by: Mariel Tinaco <Mariel.Tinaco@...log.com>
---
.../bindings/iio/dac/adi,ad8460.yaml | 164 ++++++++++++++++++
MAINTAINERS | 7 +
2 files changed, 171 insertions(+)
create mode 100644 Documentation/devicetree/bindings/iio/dac/adi,ad8460.yaml
diff --git a/Documentation/devicetree/bindings/iio/dac/adi,ad8460.yaml b/Documentation/devicetree/bindings/iio/dac/adi,ad8460.yaml
new file mode 100644
index 000000000000..b65928024e12
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/dac/adi,ad8460.yaml
@@ -0,0 +1,164 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+# Copyright 2024 Analog Devices Inc.
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/dac/adi,ad8460.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Analog Devices AD8460 DAC
+
+maintainers:
+ - Mariel Tinaco <mariel.tinaco@...log.com>
+
+description: |
+ Analog Devices AD8460 110 V High Voltage, 1 A High Current,
+ Arbitrary Waveform Generator with Integrated 14-Bit High Speed DAC
+ https://www.analog.com/media/en/technical-documentation/data-sheets/ad8460.pdf
+
+properties:
+ compatible:
+ enum:
+ - adi,ad8460
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ maxItems: 1
+
+ dmas:
+ maxItems: 1
+
+ dma-names:
+ items:
+ - const: tx
+
+ spi-max-frequency:
+ maximum: 20000000
+
+ hvcc-supply:
+ description: Positive high voltage power supply line
+
+ hvee-supply:
+ description: Negative high voltage power supply line
+
+ vcc-5v-supply:
+ description: Low voltage power supply
+
+ vref-5v-supply:
+ description: Reference voltage for analog low voltage
+
+ dvdd-3p3v-supply:
+ description: Digital supply bypass
+
+ avdd-3p3v-supply:
+ description: Analog supply bypass
+
+ refio-1p2v-supply:
+ description: Drive voltage in the range of 1.2V maximum to as low as
+ low as 0.12V through the REF_IO pin to adjust full scale output span
+
+ adi,external-resistor-ohms:
+ description: Specify value of external resistor connected to FS_ADJ pin
+ to establish internal HVDAC's reference current I_REF
+ minimum: 2000
+ maximum: 20000
+ default: 2000
+
+ adi,range-microvolt:
+ description: Voltage output range specified as <minimum, maximum>
+ items:
+ - minimum: -55000000
+ maximum: 0
+ default: 0
+ - minimum: 0
+ maximum: 55000000
+ default: 0
+
+ adi,range-microamp:
+ description: Current output range specified as <minimum, maximum>
+ items:
+ - minimum: -1000000
+ maximum: 0
+ default: 0
+ - minimum: 0
+ maximum: 1000000
+ default: 0
+
+ adi,max-millicelsius:
+ description: Overtemperature threshold
+ minimum: 0
+ maximum: 150000
+ default: 0
+
+ shutdown-reset-gpios:
+ description: Corresponds to SDN_RESET pin. To exit shutdown
+ or sleep mode, pulse SDN_RESET HIGH, then leave LOW.
+ maxItems: 1
+
+ reset-gpios:
+ description: Manual Power On Reset (POR). Pull this GPIO pin
+ LOW and then HIGH to reset all digital registers to default
+ maxItems: 1
+
+ shutdown-gpios:
+ description: Corresponds to SDN_IO pin. Shutdown may be
+ initiated by the user, by pulsing SDN_IO high. To exit shutdown,
+ pulse SDN_IO low, then float.
+ maxItems: 1
+
+required:
+ - compatible
+ - reg
+ - clocks
+ - hvcc-supply
+ - hvee-supply
+ - vcc-5v-supply
+ - vref-5v-supply
+ - dvdd-3p3v-supply
+ - avdd-3p3v-supply
+ - refio-1p2v-supply
+
+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@0 {
+ compatible = "adi,ad8460";
+ reg = <0>;
+ spi-max-frequency = <8000000>;
+
+ dmas = <&tx_dma 0>;
+ dma-names = "tx";
+
+ shutdown-reset-gpios = <&gpio 86 GPIO_ACTIVE_HIGH>;
+ reset-gpios = <&gpio 91 GPIO_ACTIVE_LOW>;
+ shutdown-gpios = <&gpio 88 GPIO_ACTIVE_HIGH>;
+
+ clocks = <&sync_ext_clk>;
+
+ hvcc-supply = <&hvcc>;
+ hvee-supply = <&hvee>;
+ vcc-5v-supply = <&vcc_5>;
+ vref-5v-supply = <&vref_5>;
+ dvdd-3p3v-supply = <&dvdd_3_3>;
+ avdd-3p3v-supply = <&avdd_3_3>;
+ refio-1p2v-supply = <&refio_1_2>;
+
+ adi,external-resistor-ohms = <2000>;
+ adi,range-microvolt = <(-40000000) 40000000>;
+ adi,range-microamp = <0 50000>;
+ adi,max-millicelsius = <50000>;
+ };
+ };
+
+...
diff --git a/MAINTAINERS b/MAINTAINERS
index a22f22369ad5..9f0acaea0749 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -1320,6 +1320,13 @@ F: Documentation/ABI/testing/debugfs-iio-ad9467
F: Documentation/devicetree/bindings/iio/adc/adi,ad9467.yaml
F: drivers/iio/adc/ad9467.c
+ANALOG DEVICES INC AD8460 DRIVER
+M: Mariel Tinaco <Mariel.Tinaco@...log.com>
+L: linux-iio@...r.kernel.org
+S: Supported
+W: https://ez.analog.com/linux-software-drivers
+F: Documentation/devicetree/bindings/iio/dac/adi,ad8460.yaml
+
ANALOG DEVICES INC AD9739a DRIVER
M: Nuno Sa <nuno.sa@...log.com>
M: Dragos Bogdan <dragos.bogdan@...log.com>
--
2.34.1
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