On Fri, 08 Jan 2021 20:23:36 +0100, Stephan Gerhold wrote:
> 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 <megous@xxxxxxxxxx>
> Cc: Marco Felsch <m.felsch@xxxxxxxxxxxxxx>
> Signed-off-by: Stephan Gerhold <stephan@xxxxxxxxxxx>
> ---
> .../devicetree/bindings/input/touchscreen/edt-ft5x06.yaml | 1 +
> 1 file changed, 1 insertion(+)
>
Acked-by: Rob Herring <robh@xxxxxxxxxx>
