[PATCH 1/2] dt-bindings: input: touchscreen: edt-ft5x06: add iovcc-supply
From: Stephan Gerhold <stephan@gerhold.net>
Date: 2021-01-08 19:27:09
Also in:
linux-input
Subsystem:
input (keyboard, mouse, joystick, touchscreen) drivers, open firmware and flattened device tree bindings, the rest · Maintainers:
Dmitry Torokhov, Rob Herring, Krzysztof Kozlowski, Conor Dooley, Linus Torvalds
At the moment, the edt-ft5x06 driver can control a single regulator
("vcc"). However, some FocalTech touch controllers have an additional
IOVCC pin that should be supplied with the digital I/O voltage.
The I/O voltage might be provided by another regulator that should also
be kept on. Otherwise, the touchscreen can randomly stop functioning if
the regulator is turned off because no other components still require it.
Document (optional) support for controlling the regulator for IOVCC
using "iovcc-supply".
Cc: Ondrej Jirman <redacted>
Cc: Marco Felsch <redacted>
Signed-off-by: Stephan Gerhold <stephan@gerhold.net>
---
.../devicetree/bindings/input/touchscreen/edt-ft5x06.yaml | 1 +
1 file changed, 1 insertion(+)
diff --git a/Documentation/devicetree/bindings/input/touchscreen/edt-ft5x06.yaml b/Documentation/devicetree/bindings/input/touchscreen/edt-ft5x06.yaml
index bfc3a8b5e118..2e8da7470513 100644
--- a/Documentation/devicetree/bindings/input/touchscreen/edt-ft5x06.yaml
+++ b/Documentation/devicetree/bindings/input/touchscreen/edt-ft5x06.yaml@@ -56,6 +56,7 @@ properties: wakeup-source: true vcc-supply: true + iovcc-supply: true gain: description: Allows setting the sensitivity in the range from 0 to 31.
--
2.30.0