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dt-bindings: hwmon: lm90: do not require VCC supply

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The LM90-like sensors usually need VCC supply, however this can be
hard-wired to the board main supply (like in SiFive HiFive Unmatched
RISC-V board).  Original bindings made VCC supply as required but in
practice several other boards skipped it.  Make it optional.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20210920181913.338772-2-krzysztof.kozlowski@canonical.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
This commit is contained in:
Krzysztof Kozlowski 2021-09-20 20:19:13 +02:00 committed by Guenter Roeck
parent 9559cb3379
commit 3e0ce52615
1 changed files with 0 additions and 1 deletions
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Documentation/devicetree/bindings/hwmon/national,lm90.yaml
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@ -55,7 +55,6 @@ properties:
required:
- compatible
- reg
- vcc-supply
additionalProperties: false