Messages in this thread | | | From | Frank Wunderlich <> | Subject | Aw: Re: [PATCH] dt-bindings: mt76: add active-low property to led | Date | Tue, 7 Feb 2023 13:12:08 +0100 |
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> Gesendet: Dienstag, 07. Februar 2023 um 11:40 Uhr > Von: "Krzysztof Kozlowski" <krzysztof.kozlowski@linaro.org> > On 07/02/2023 11:25, Frank Wunderlich wrote: > > From: Frank Wunderlich <frank-w@public-files.de> > > > > LEDs can be in low-active mode, so add dt property for it. > > > > Signed-off-by: Frank Wunderlich <frank-w@public-files.de> > > --- > > .../devicetree/bindings/net/wireless/mediatek,mt76.yaml | 5 +++++ > > 1 file changed, 5 insertions(+) > > > > diff --git a/Documentation/devicetree/bindings/net/wireless/mediatek,mt76.yaml b/Documentation/devicetree/bindings/net/wireless/mediatek,mt76.yaml > > index f0c78f994491..212508672979 100644 > > --- a/Documentation/devicetree/bindings/net/wireless/mediatek,mt76.yaml > > +++ b/Documentation/devicetree/bindings/net/wireless/mediatek,mt76.yaml > > @@ -112,6 +112,11 @@ properties: > > $ref: /schemas/leds/common.yaml# > > additionalProperties: false > > properties: > > + led-active-low: > > + description: > > + LED is enabled with ground signal. > > What does it mean? You set voltage of regulator to 0? Or you set GPIO as > 0? If the latter, it's not the property of LED...
basicly it is a gpio-led mapped into the mt76 driver, but not passing gpio itself in this property (like gpio-led does). This gpio is set to 0 signal (gnd) to let the led go on ;) so imho it is a led-property, but below the wifi-node as the trigger comes from mt76 hardware, not an external (soc) gpio controller.
mt76 driver supports it already like i post change here:
https://patchwork.kernel.org/project/linux-mediatek/patch/20230205174833.107050-1-linux@fw-web.de/
only needed the binding for it.
> Best regards, > Krzysztof > >
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