| Message ID | 1531851386-17840-3-git-send-email-pawel.mikolaj.chmiel@gmail.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
On Tue, Jul 17, 2018 at 08:16:26PM +0200, Paweł Chmiel wrote: > Document new optional voltage regulators, which can be used > to power down/up touchscreen. > > Signed-off-by: Paweł Chmiel <pawel.mikolaj.chmiel@gmail.com> > --- > Documentation/devicetree/bindings/input/atmel,maxtouch.txt | 8 ++++++++ > 1 file changed, 8 insertions(+) Reviewed-by: Rob Herring <robh@kernel.org>
diff --git a/Documentation/devicetree/bindings/input/atmel,maxtouch.txt b/Documentation/devicetree/bindings/input/atmel,maxtouch.txt index c88919480d37..17930ecadad3 100644 --- a/Documentation/devicetree/bindings/input/atmel,maxtouch.txt +++ b/Documentation/devicetree/bindings/input/atmel,maxtouch.txt @@ -31,6 +31,12 @@ Optional properties for main touchpad device: - reset-gpios: GPIO specifier for the touchscreen's reset pin (active low) +- avdd-supply: Analog power supply. It powers up the analog channel block + of the controller to detect the touches. + +- vdd-supply: Digital power supply. It powers up the digital block + of the controller to enable i2c communication. + Example: touch@4b { @@ -38,4 +44,6 @@ Example: reg = <0x4b>; interrupt-parent = <&gpio>; interrupts = <TEGRA_GPIO(W, 3) IRQ_TYPE_LEVEL_LOW>; + avdd-supply = <&atsp_reg>; + vdd-supply = <&tsp_reg>; };
Document new optional voltage regulators, which can be used to power down/up touchscreen. Signed-off-by: Paweł Chmiel <pawel.mikolaj.chmiel@gmail.com> --- Documentation/devicetree/bindings/input/atmel,maxtouch.txt | 8 ++++++++ 1 file changed, 8 insertions(+)