forked from thesofproject/linux
-
Notifications
You must be signed in to change notification settings - Fork 1
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
avia-hx711.yaml: transform DT binding to YAML
replace avia-hx711.txt by avia-hx711.yaml as yaml devicetree documentation for avia hx711 iio adc sensor Signed-off-by: Andreas Klinger <ak@it-klinger.de> Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
- Loading branch information
1 parent
a8427a7
commit 5150ec3
Showing
2 changed files
with
66 additions
and
24 deletions.
There are no files selected for viewing
This file was deleted.
Oops, something went wrong.
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,66 @@ | ||
# SPDX-License-Identifier: GPL-2.0 | ||
%YAML 1.2 | ||
--- | ||
$id: "http://devicetree.org/schemas/iio/adc/avia-hx711.yaml#" | ||
$schema: "http://devicetree.org/meta-schemas/core.yaml#" | ||
|
||
title: AVIA HX711 ADC chip for weight cells | ||
|
||
maintainers: | ||
- Andreas Klinger <ak@it-klinger.de> | ||
|
||
description: | | ||
Bit-banging driver using two GPIOs: | ||
- sck-gpio gives a clock to the sensor with 24 cycles for data retrieval | ||
and up to 3 cycles for selection of the input channel and gain for the | ||
next measurement | ||
- dout-gpio is the sensor data the sensor responds to the clock | ||
Specifications about the driver can be found at: | ||
http://www.aviaic.com/ENProducts.aspx | ||
properties: | ||
compatible: | ||
enum: | ||
- avia,hx711 | ||
|
||
sck-gpios: | ||
description: | ||
Definition of the GPIO for the clock (output). In the datasheet it is | ||
named PD_SCK | ||
maxItems: 1 | ||
|
||
dout-gpios: | ||
description: | ||
Definition of the GPIO for the data-out sent by the sensor in | ||
response to the clock (input). | ||
See Documentation/devicetree/bindings/gpio/gpio.txt for information | ||
on how to specify a consumer gpio. | ||
maxItems: 1 | ||
|
||
avdd-supply: | ||
description: | ||
Definition of the regulator used as analog supply | ||
maxItems: 1 | ||
|
||
clock-frequency: | ||
minimum: 20000 | ||
maximum: 2500000 | ||
default: 400000 | ||
|
||
required: | ||
- compatible | ||
- sck-gpios | ||
- dout-gpios | ||
- avdd-supply | ||
|
||
examples: | ||
- | | ||
#include <dt-bindings/gpio/gpio.h> | ||
weight { | ||
compatible = "avia,hx711"; | ||
sck-gpios = <&gpio3 10 GPIO_ACTIVE_HIGH>; | ||
dout-gpios = <&gpio0 7 GPIO_ACTIVE_HIGH>; | ||
avdd-suppy = <&avdd>; | ||
clock-frequency = <100000>; | ||
}; |