iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

dt-bindings: iio: ad74413r: allow setting sink current for digital input

Browse Source 
Depending on the actual hardware wired up to a digital input channel,
it may be necessary to configure the ad74413r to sink a small
current. For example, in the case of a simple mechanical switch, the
charge on the external 68 nF capacitor (cf. the data sheet's Figure
34) will keep the channel as reading high even after the switch is
turned off again.

Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20230306094301.1357543-2-linux@rasmusvillemoes.dk
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
This commit is contained in:
Rasmus Villemoes 2023-03-06 10:43:00 +01:00 committed by Jonathan Cameron
parent 541880542f
commit 954ea91fb6
1 changed files with 9 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
Documentation/devicetree/bindings/iio/addac/adi,ad74413r.yaml
View File

@ -101,6 +101,15 @@ patternProperties:
When not configured as a comparator, the GPO will be treated as an
output-only GPIO.
drive-strength-microamp:
description: |
For channels configured as digital input, this configures the sink
current.
minimum: 0
maximum: 1800
default: 0
multipleOf: 120
required:
- reg