On 11.10.2020 18:07, Jonathan Cameron wrote:
From: Jonathan Cameron <Jonathan.Cameron@xxxxxxxxxx>
The conversion is straight forward, but leaves an open question.
The compatible for this device has never had a vendor. I suspect
this because it is non-obvious who actually makes the module. It is
resold by numerous vendors and it may be that there is no single
vendor
of the parts they are using. If anyone has any more info on the
vendor, please let me know and we can add a more informative
compatible.
I think these parts come from Aosong: http://www.aosong.com/en/
The DHT11 uses a custom protocol, so I don't think other vendors
would be using this. Even Aosong started using i2c by now.
On the other hand DHT11 seems to be more of a trade name then a
part identifier. The latter probably would be something like
aosong,am2302 (trade name DHT22).
However the matching between identifiers and trade names is
confusing for the older products. I'm not sure if it is worth
digging into this. Probably only the people at aosong could
clear this up.
Anyway, you have my:
Acked-By: Harald Geyer <harald@xxxxxxxxx>
Thanks,
Harald
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@xxxxxxxxxx>
Cc: Harald Geyer <harald@xxxxxxxxx>
---
.../bindings/iio/humidity/dht11.txt | 14 -------
.../bindings/iio/humidity/dht11.yaml | 41
+++++++++++++++++++
2 files changed, 41 insertions(+), 14 deletions(-)
diff --git a/Documentation/devicetree/bindings/iio/humidity/dht11.txt
b/Documentation/devicetree/bindings/iio/humidity/dht11.txt
deleted file mode 100644
index ecc24c199fd6..000000000000
--- a/Documentation/devicetree/bindings/iio/humidity/dht11.txt
+++ /dev/null
@@ -1,14 +0,0 @@
-* DHT11 humidity/temperature sensor (and compatibles like DHT22)
-
-Required properties:
- - compatible: Should be "dht11"
- - gpios: Should specify the GPIO connected to the sensor's data
- line, see "gpios property" in
- Documentation/devicetree/bindings/gpio/gpio.txt.
-
-Example:
-
-humidity_sensor {
- compatible = "dht11";
- gpios = <&gpio0 6 0>;
-}
diff --git
a/Documentation/devicetree/bindings/iio/humidity/dht11.yaml
b/Documentation/devicetree/bindings/iio/humidity/dht11.yaml
new file mode 100644
index 000000000000..38ec4c302760
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/humidity/dht11.yaml
@@ -0,0 +1,41 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/humidity/dht11.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: DHT11 humidity + temperature sensor
+
+maintainers:
+ - Harald Geyer <harald@xxxxxxxxx>
+
+description: |
+ A simple and low cost module providing a non standard single GPIO
based
+ interface. Whilst commonly available it is not easy to establish
if there
+ is a single manufacturer for this part.
+
+properties:
+ compatible:
+ const: dht11
+
+ reg:
+ maxItems: 1
+
+ gpios:
+ maxItems: 1
+ description:
+ Single, interrupt capable, GPIO used to communicate with the
device.
+
+required:
+ - compatible
+ - gpios
+
+additionalProperties: false
+
+examples:
+ - |
+ humidity_sensor {
+ compatible = "dht11";
+ gpios = <&gpio0 6 0>;
+ };
+...
--
Es gibt viele Maßnahmen gegen die Klimakrise, die leicht und ohne
Verlierer umsetzbar sind. Das Problem ist immer noch das Desinteresse
der etablierten Parteien.
https://haraldgeyer.at/Klimaschutz.html
