[PATCH v4 1/2] dt-bindings: iio: adc: Add dt-schema for AD7292

Marcelo Schmitt
2019-11-08T13:56:17Z

Add a devicetree schema for AD7292 monitor and control system.

Signed-off-by: Marcelo Schmitt <marcelo.schmitt1@gmail.com>
---
Changelog V3 -> V4:
- updated SPDX identifier to GPL-2.0-only
- changed maxitems constraint on channel property

.../bindings/iio/adc/adi,ad7292.yaml | 104 ++++++++++++++++++
MAINTAINERS | 7 ++
2 files changed, 111 insertions(+)
create mode 100644 Documentation/devicetree/bindings/iio/adc/adi,ad7292.yaml

diff --git a/Documentation/devicetree/bindings/iio/adc/adi,ad7292.yaml b/Documentation/devicetree/bindings/iio/adc/adi,ad7292.yaml
new file mode 100644
index 000000000000..b68be3aaf587
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/adc/adi,ad7292.yaml
@@ -0,0 +1,104 @@
+# SPDX-License-Identifier: GPL-2.0-only
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/adc/adi,ad7292.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Analog Devices AD7292 10-Bit Monitor and Control System
+
+maintainers:
+ - Marcelo Schmitt <marcelo.schmitt1@gmail.com>
+
+description: |
+ Analog Devices AD7292 10-Bit Monitor and Control System with ADC, DACs,
+ Temperature Sensor, and GPIOs
+
+ Specifications about the part can be found at:
+ https://www.analog.com/media/en/technical-documentation/data-sheets/ad7292.pdf
+
+properties:
+ compatible:
+ enum:
+ - adi,ad7292
+
+ reg:
+ maxItems: 1
+
+ vref-supply:
+ description: |
+ The regulator supply for ADC and DAC reference voltage.
+
+ spi-cpha: true
+
+ '#address-cells':
+ const: 1
+
+ '#size-cells':
+ const: 0
+
+required:
+ - compatible
+ - reg
+ - spi-cpha
+
+patternProperties:
+ "^channel@[0-7]$":
+ type: object
+ description: |
+ Represents the external channels which are connected to the ADC.
+ See Documentation/devicetree/bindings/iio/adc/adc.txt.
+
+ properties:
+ reg:
+ description: |
+ The channel number. It can have up to 8 channels numbered from 0 to 7.
+ items:
+ maximum: 7
+
+ diff-channels:
+ description: see Documentation/devicetree/bindings/iio/adc/adc.txt
+ maxItems: 1
+
+ required:
+ - reg
+
+examples:
+ - |
+ spi {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ ad7292: adc@0 {
+ compatible = "adi,ad7292";
+ reg = <0>;
+ spi-max-frequency = <25000000>;
+ vref-supply = <&adc_vref>;
+ spi-cpha;
+
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ channel@0 {
+ reg = <0>;
+ diff-channels = <0 1>;
+ };
+ channel@2 {
+ reg = <2>;
+ };
+ channel@3 {
+ reg = <3>;
+ };
+ channel@4 {
+ reg = <4>;
+ };
+ channel@5 {
+ reg = <5>;
+ };
+ channel@6 {
+ reg = <6>;
+ };
+ channel@7 {
+ reg = <7>;
+ };
+ };
+ };
diff --git a/MAINTAINERS b/MAINTAINERS
index 32bf5f8116d0..5d00e871c4c6 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -813,6 +813,13 @@ S: Supported
F: drivers/iio/adc/ad7124.c
F: Documentation/devicetree/bindings/iio/adc/adi,ad7124.txt

+ANALOG DEVICES INC AD7292 DRIVER
+M: Marcelo Schmitt <marcelo.schmitt1@gmail.com>
+L: linux-iio@vger.kernel.org
+W: http://ez.analog.com/community/linux-device-drivers
+S: Supported
+F: Documentation/devicetree/bindings/iio/adc/adi,ad7292.yaml
+
ANALOG DEVICES INC AD7606 DRIVER
M: Stefan Popa <stefan.popa@analog.com>
L: linux-iio@vger.kernel.org
--
2.23.0