This new property allows devices to specify some register values which are missing on units with third party replacement displays. These displays use unofficial touch ICs which only implement a subset of the RMI4 specification.
Signed-off-by: Caleb Connolly <[email protected]> --- To: "Jason A. Donenfeld" <[email protected]> To: Matthias Schiffer <[email protected]> To: Rob Herring <[email protected]> To: Krzysztof Kozlowski <[email protected]> To: Conor Dooley <[email protected]> Cc: [email protected] --- Documentation/devicetree/bindings/input/syna,rmi4.yaml | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/Documentation/devicetree/bindings/input/syna,rmi4.yaml b/Documentation/devicetree/bindings/input/syna,rmi4.yaml index 4d4e1a8e36be..bd6beb67ac21 100644 --- a/Documentation/devicetree/bindings/input/syna,rmi4.yaml +++ b/Documentation/devicetree/bindings/input/syna,rmi4.yaml @@ -49,6 +49,16 @@ properties: description: Delay to wait after powering on the device. + syna,pdt-fallback-desc: + $ref: /schemas/types.yaml#/definitions/uint8-array + description: + An array of pairs of function number and version. These are used + on some devices with replacement displays that use unofficial touch + controllers. These controllers do report the properties of their PDT + entries, but leave the function_number and function_version registers + blank. These values should match exactly the 5th and 4th bytes of each + PDT entry from the original display's touch controller. + vdd-supply: true vio-supply: true -- 2.42.0
