dt-bindings:iio:dac:ad5755: txt to yaml format conversion.

Straight forward conversion.  Only fiddly bit is the XOR of
spi-cpol and spi-cpha.

Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Cc: Sean Nyekjaer <sean.nyekjaer@prevas.dk>
Link: https://lore.kernel.org/r/20201031184854.745828-40-jic23@kernel.org
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20210424173015.534941-1-jic23@kernel.org

diff --git a/Documentation/devicetree/bindings/iio/dac/ad5755.txt b/Documentation/devicetree/bindings/iio/dac/ad5755.txt
deleted file mode 100644 (file)
index 502e1e5..0000000
--- a/Documentation/devicetree/bindings/iio/dac/ad5755.txt
+++ /dev/null
@@ -1,124 +0,0 @@
-* Analog Devices AD5755 IIO Multi-Channel DAC Linux Driver
-
-Required properties:
- - compatible: Has to contain one of the following:
-       adi,ad5755
-       adi,ad5755-1
-       adi,ad5757
-       adi,ad5735
-       adi,ad5737
-
- - reg: spi chip select number for the device
- - spi-cpha or spi-cpol: is the only modes that is supported
-
-Recommended properties:
- - spi-max-frequency: Definition as per
-               Documentation/devicetree/bindings/spi/spi-bus.txt
-
-Optional properties:
-See include/dt-bindings/iio/ad5755.h
- - adi,ext-dc-dc-compenstation-resistor: boolean set if the hardware have an
-                                        external resistor and thereby bypasses
-                                        the internal compensation resistor.
- - adi,dc-dc-phase:
-       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:
-       Valid values for DC DC frequency is [Hz]:
-       250000
-       410000
-       650000
- - adi,dc-dc-max-microvolt:
-       Valid values for the maximum allowed Vboost voltage supplied by
-       the dc-to-dc converter is:
-       23000000
-       24500000
-       27000000
-       29500000
-
-Optional for every channel:
- - adi,mode:
-       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: boolean set if the hardware a external
-                                  current sense resistor.
- - adi,enable-voltage-overrange: boolean enable voltage overrange
- - adi,slew: 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 settings:
-               Valid values for the slew rate update frequency:
-               64000
-               32000
-               16000
-               8000
-               4000
-               2000
-               1000
-               500
-               250
-               125
-               64
-               32
-               16
-               8
-               4
-               0
-       3: Slew step size:
-               Valid values for the step size LSBs:
-               1
-               2
-               4
-               16
-               32
-               64
-               128
-               256
-
-Example:
-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,ad5755.yaml b/Documentation/devicetree/bindings/iio/dac/adi,ad5755.yaml
new file mode 100644 (file)
index 0000000..be419ac
--- /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
+
+  spi-max-frequency: 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:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    enum: [0, 1, 2, 3]
+    description: |
+      Valid values for DC DC Phase control is:
+      0: All dc-to-dc converters clock on the same edge.
+      1: Channel A and Channel B clock on the same edge,
+         Channel C and Channel D clock on opposite edges.
+      2: Channel A and Channel C clock on the same edge,
+         Channel B and Channel D clock on opposite edges.
+      3: Channel A, Channel B, Channel C, and Channel D
+         clock 90 degrees out of phase from each other.
+
+  adi,dc-dc-freq-hz:
+    enum: [250000, 410000, 650000]
+
+  adi,dc-dc-max-microvolt:
+    description:
+      Maximum allowed Vboost voltage supplied by the dc-to-dc converter.
+    enum: [23000000, 24500000, 27000000, 29500000]
+
+  "#address-cells":
+    const: 1
+
+  "#size-cells":
+    const: 0
+
+  "#io-channel-cells":
+    const: 1
+
+required:
+  - compatible
+  - reg
+
+additionalProperties: false
+
+patternProperties:
+  "^channel@[0-7]$":
+    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
+
+examples:
+  - |
+    #include <dt-bindings/iio/adi,ad5592r.h>
+    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>;
+            };
+        };
+    };
+...