From: Jonathan Cameron <Jonathan.Cameron@xxxxxxxxxx>
I have put Michael as maintainer on this one. Happy to change it to
someone else though.
One issue in here, is I cannot have an example with a negative
limit on the range. There are very few such yaml bindings in existence
but the thermal-zones.yaml has the same problem. If there is
any means of fixing this let me know. For now I'm sticking to
positive range values in the example.
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@xxxxxxxxxx>
Cc: Michael Hennerich <Michael.Hennerich@xxxxxxxxxx>
---
.../devicetree/bindings/iio/dac/ad5758.txt | 83 -----------
.../bindings/iio/dac/adi,ad5758.yaml | 129 ++++++++++++++++++
2 files changed, 129 insertions(+), 83 deletions(-)
diff --git a/Documentation/devicetree/bindings/iio/dac/ad5758.txt b/Documentation/devicetree/bindings/iio/dac/ad5758.txt
deleted file mode 100644
index 2f607f41f9d3..000000000000
--- a/Documentation/devicetree/bindings/iio/dac/ad5758.txt
+++ /dev/null
@@ -1,83 +0,0 @@
-Analog Devices AD5758 DAC device driver
-
-Required properties for the AD5758:
- - compatible: Must be "adi,ad5758"
- - reg: SPI chip select number for the device
- - spi-max-frequency: Max SPI frequency to use (< 50000000)
- - spi-cpha: is the only mode that is supported
-
-Required properties:
-
- - adi,dc-dc-mode: 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: Voltage output range
- The array of voltage output ranges must contain two fields:
- * <0 5000000>: 0 V to 5 V voltage range
- * <0 10000000>: 0 V to 10 V voltage range
- * <(-5000000) 5000000>: ±5 V voltage range
- * <(-10000000) 10000000>: ±10 V voltage range
- - adi,range-microamp: Current output range
- The array of current output ranges must contain two fields:
- * <0 20000>: 0 mA to 20 mA current range
- * <0 24000>: 0 mA to 24 mA current range
- * <4 24000>: 4 mA to 20 mA current range
- * <(-20000) 20000>: ±20 mA current range
- * <(-24000) 24000>: ±24 mA current range
- * <(-1000) 22000>: −1 mA to +22 mA current range
-
-Optional properties:
-
- - reset-gpios : GPIO spec for the RESET pin. If specified, it will be
- asserted during driver probe.
-
- - adi,dc-dc-ilim-microamp: The dc-to-dc converter current limit
- The following values are currently supported [uA]:
- * 150000
- * 200000
- * 250000
- * 300000
- * 350000
- * 400000
-
- - adi,slew-time-us: The time it takes for the output to reach the
- full scale [uS]
- The supported range is between 133us up to 1023984375us
-
-AD5758 Example:
-
- 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,ad5758.yaml b/Documentation/devicetree/bindings/iio/dac/adi,ad5758.yaml
new file mode 100644
index 000000000000..626ccb6fe21e
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/dac/adi,ad5758.yaml
@@ -0,0 +1,129 @@
+# 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@xxxxxxxxxx>
+
+properties:
+ compatible:
+ const: adi,ad5758
+
+ reg:
+ maxItems: 1
+
+ spi-max-frequency: true
+ 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:
+ $ref: /schemas/types.yaml#/definitions/int32-array
+ description: |
+ Voltage output range specified as <minimum, maximum>
+ enum:
+ - [[0, 5000000]]
+ - [[0, 10000000]]
+ - [[-5000000, 5000000]]
+ - [[-10000000, 10000000]]
+
+ adi,range-microamp:
+ $ref: /schemas/types.yaml#/definitions/int32-array
+ description: |
+ Current output range specified as <minimum, maximum>
+ enum:
+ - [[0, 20000]]
+ - [[0, 24000]]
+ - [[4, 24000]]
+ - [[-20000, 20000]]
+ - [[-24000, 24000]]
+ - [[-1000, 22000]]
+
+ reset-gpios: true
+
+ adi,dc-dc-ilim-microamp:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ 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:
+ - 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
+
+additionalProperties: 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>;
+ };
+ };
+...
--
2.28.0
