[PATCH 2/2] dt-bindings: iio: adc: Add MAX1241 device tree bindings in documentation

Alexandru Lazar
2020-03-18T20:24:26Z

Add device-tree bindings documentation for the MAX1241 device driver.

Signed-off-by: Alexandru Lazar <alazar@startmail.com>
---
.../bindings/iio/adc/maxim,max1241.yaml | 62 +++++++++++++++++++
1 file changed, 62 insertions(+)
create mode 100644 Documentation/devicetree/bindings/iio/adc/maxim,max1241.yaml

diff --git a/Documentation/devicetree/bindings/iio/adc/maxim,max1241.yaml b/Documentation/devicetree/bindings/iio/adc/maxim,max1241.yaml
new file mode 100644
index 000000000000..28c73ed795aa
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/adc/maxim,max1241.yaml
@@ -0,0 +1,62 @@
+# SPDX-License-Identifier: GPL-2.0
+# Copyright 2020 Ioan-Alexandru Lazar
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/adc/maxim,max1241.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Maxim MAX1241 12-bit, single-channel analog to digital converter
+
+maintainers:
+ - Ioan-Alexandru Lazar <alazar@startmail.com>
+
+description: |
+ Bindings for the max1241 12-bit, single-channel ADC device. This
+ driver supports voltage reading and can optionally be configured for
+ power-down mode operation. The datasheet can be found at:
+ https://datasheets.maximintegrated.com/en/ds/MAX1240-MAX1241.pdf
+
+properties:
+ compatible:
+ enum:
+ - maxim,max1241
+
+ reg:
+ description: SPI chip select number for this device
+ maxItems: 1
+
+ vref-supply:
+ description:
+ Device tree identifier of the regulator that provides the external
+ reference voltage.
+ maxItems: 1
+
+ shdn-gpios:
+ description:
+ GPIO spec for the GPIO pin connected to the ADC's /SHDN pin. If
+ specified, the /SHDN pin will be asserted between conversions,
+ thus enabling power-down mode.
+ maxItems: 1
+
+required:
+ - compatible
+ - reg
+ - vref-supply
+
+examples:
+ - |
+ #include <dt-bindings/gpio/gpio.h>
+ spi0 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ adc@0 {
+ compatible = "maxim,max1241";
+ reg = <0>;
+ vref-supply = <&vdd_3v3_reg>;
+ spi-max-frequency = <1000000>;
+ shdn-gpios = <&gpio 26 1>;
+ };
+ };
+
+
--
2.25.1