On Sun, Feb 17, 2019 at 02:44:33PM +0530, Jagan Teki wrote:

Goodix CTP controllers support analog, digital and gpio regulator
supplies on relevant controller pin configurations.

Out of which AVDD28 regulator is mandatory supplied regulator in most
of the board designs, so document AVDD28 as required property and
rest marked as optional regulators.

Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
---
 .../devicetree/bindings/input/touchscreen/goodix.txt       | 7 +++++++
 1 file changed, 7 insertions(+)

Reviewed-by: Rob Herring <robh@kernel.org>