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| author |   Geert Uytterhoeven <geert@linux-m68k.org> | 2021-10-19 16:45:01 +0200 |
|---|---|---|
| committer |   Miguel Ojeda <ojeda@kernel.org> | 2021-10-21 23:36:28 +0200 |
| commit | ae53c6963f5a3dc89dd04fa1372910e442fabc14 (patch) | |
| tree | c258d143938cf63e1c6a9e67a2c47346c8c7fda6 /Documentation/devicetree/bindings/auxdisplay | |
| parent | uapi: Add <linux/map_to_14segment.h> (diff) | |
| download | wireguard-linux-ae53c6963f5a3dc89dd04fa1372910e442fabc14.tar.xz wireguard-linux-ae53c6963f5a3dc89dd04fa1372910e442fabc14.zip | |
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: Geert Uytterhoeven <geert@linux-m68k.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
Diffstat (limited to 'Documentation/devicetree/bindings/auxdisplay')
| -rw-r--r-- | Documentation/devicetree/bindings/auxdisplay/holtek,ht16k33.yaml | 20 |
1 files changed, 17 insertions, 3 deletions
diff --git a/Documentation/devicetree/bindings/auxdisplay/holtek,ht16k33.yaml b/Documentation/devicetree/bindings/auxdisplay/holtek,ht16k33.yaml index 64ffff460026..6baf1200c9d8 100644 --- a/Documentation/devicetree/bindings/auxdisplay/holtek,ht16k33.yaml +++ b/Documentation/devicetree/bindings/auxdisplay/holtek,ht16k33.yaml @@ -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 @@ -44,7 +51,14 @@ properties: required: - compatible - reg - - refresh-rate-hz + +if: + properties: + compatible: + const: holtek,ht16k33 +then: + required: + - refresh-rate-hz additionalProperties: false |