Commit ae53c696 authored by Geert Uytterhoeven's avatar Geert Uytterhoeven Committed by Miguel Ojeda
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dt-bindings: auxdisplay: ht16k33: Document Adafruit segment displays 

The Holtek HT16K33 LED controller is not only used for driving
dot-matrix displays, but also for driving segment displays.

Document compatible values for the Adafruit 7-segment[1] and
14-segment[2] FeatherWing expansion boards with red displays.  According
to the schematics, all other Adafruit 7-segment and 14-segment display
backpack and FeatherWing expansion boards (including bare boards and
boards fitted with displays) are compatible with these two boards.

[1] https://www.adafruit.com/product/3108
[2] https://www.adafruit.com/product/3130



Signed-off-by: default avatarGeert Uytterhoeven <geert@linux-m68k.org>
Reviewed-by: default avatarRob Herring <robh@kernel.org>
Signed-off-by: default avatarMiguel Ojeda <ojeda@kernel.org>
parent c353d7ce

Documentation/devicetree/bindings/auxdisplay/holtek,ht16k33.yaml

+17 −3
Original line number Diff line number Diff line
@@ -14,14 +14,21 @@ allOf: 


properties:

  compatible:

    const: holtek,ht16k33

    oneOf:

      - items:

          - enum:

              - adafruit,3108  # 0.56" 4-Digit 7-Segment FeatherWing Display (Red)

              - adafruit,3130  # 0.54" Quad Alphanumeric FeatherWing Display (Red)

          - const: holtek,ht16k33



      - const: holtek,ht16k33     # Generic 16*8 LED controller with dot-matrix display



  reg:

    maxItems: 1



  refresh-rate-hz:

    maxItems: 1

    description: Display update interval in Hertz

    description: Display update interval in Hertz for dot-matrix displays



  interrupts:

    maxItems: 1
@@ -44,6 +51,13 @@ properties: 
required:

  - compatible

  - reg



if:

  properties:

    compatible:

      const: holtek,ht16k33

then:

  required:

    - refresh-rate-hz



additionalProperties: false