linux-kernel - Re: [PATCH 7/9 RFC] dt-bindings: wireless: ath12k: Add disable-rfkill property

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Message-ID: <CA+kEDGFR3FB=ead50kFBAL23-1dXo-LOMqhT7f=WecNMf_MaNg@mail.gmail.com>
Date: Tue, 15 Jul 2025 01:26:48 +0200
From: Jérôme de Bretagne <jerome.debretagne@...il.com>
To: Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>
Cc: Dale Whinham <daleyo@...il.com>, Johannes Berg <johannes@...solutions.net>, 
	Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>, Conor Dooley <conor+dt@...nel.org>, 
	Jeff Johnson <jjohnson@...nel.org>, Jeff Johnson <jeff.johnson@....qualcomm.com>, 
	linux-wireless@...r.kernel.org, devicetree@...r.kernel.org, 
	ath12k@...ts.infradead.org, linux-kernel@...r.kernel.org, 
	Lingbo Kong <quic_lingbok@...cinc.com>
Subject: Re: [PATCH 7/9 RFC] dt-bindings: wireless: ath12k: Add disable-rfkill property

On Mon. Jul 15, 2025 at 00:33, Dmitry Baryshkov
<dmitry.baryshkov@....qualcomm.com> wrote :
>
> On Mon, Jul 14, 2025 at 06:35:43PM +0100, Dale Whinham wrote:
> > From: Jérôme de Bretagne <jerome.debretagne@...il.com>
> >
> > Document the disable-rfkill property.
>
> Why? What does it mean? Why are you describing Linux driver firmware in
> the DT?

rfkill should be disabled according to the Surface Pro 11's DSDT.

https://lore.kernel.org/all/20250113074810.29729-3-quic_lingbok@quicinc.com/
has added support to read the ACPI bitflag when ACPI is supported.

The idea was to expose one specific feature (DISABLE_RFKILL_BIT) for
devices described with a DT, so that the feature can be disabled.



> >
> > Signed-off-by: Jérôme de Bretagne <jerome.debretagne@...il.com>
> > Signed-off-by: Dale Whinham <daleyo@...il.com>
> > ---
> >  .../devicetree/bindings/net/wireless/qcom,ath12k.yaml          | 3 +++
> >  1 file changed, 3 insertions(+)
> >
> > diff --git a/Documentation/devicetree/bindings/net/wireless/qcom,ath12k.yaml b/Documentation/devicetree/bindings/net/wireless/qcom,ath12k.yaml
> > index 9e557cb838c7..f15b630fb034 100644
> > --- a/Documentation/devicetree/bindings/net/wireless/qcom,ath12k.yaml
> > +++ b/Documentation/devicetree/bindings/net/wireless/qcom,ath12k.yaml
> > @@ -48,6 +48,9 @@ properties:
> >    vddpcie1p8-supply:
> >      description: VDD_PCIE_1P8 supply regulator handle
> >
> > +  disable-rfkill:
> > +    type: boolean
> > +
> >  required:
> >    - compatible
> >    - reg
> > --
> > 2.50.1
> >
>
> --
> With best wishes
> Dmitry