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Date: Tue, 10 Mar 2026 10:00:24 +0100
From: Krzysztof Kozlowski <krzk@kernel.org>
To: Richard Acayan <mailingradian@gmail.com>
Cc: Bjorn Andersson <andersson@kernel.org>, 
	Linus Walleij <linusw@kernel.org>, Rob Herring <robh@kernel.org>, 
	Krzysztof Kozlowski <krzk+dt@kernel.org>, Conor Dooley <conor+dt@kernel.org>, 
	Konrad Dybcio <konradybcio@kernel.org>, Srinivas Kandagatla <srini@kernel.org>, 
	linux-arm-msm@vger.kernel.org, linux-gpio@vger.kernel.org, devicetree@vger.kernel.org
Subject: Re: [PATCH v2 1/5] dt-bindings: qcom: lpass-lpi-common: add reserved
 GPIOs property
Message-ID: <20260310-rigorous-whimsical-pudu-5f4df6@quoll>
References: <20260310012446.32226-1-mailingradian@gmail.com>
 <20260310012446.32226-2-mailingradian@gmail.com>
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In-Reply-To: <20260310012446.32226-2-mailingradian@gmail.com>

On Mon, Mar 09, 2026 at 09:24:42PM -0400, Richard Acayan wrote:
> There can be reserved GPIOs on the LPASS LPI pin controller to possibly
> control sensors. Add the property for reserved GPIOs so they can be
> avoided appropriately.
> 
> Adapted from the same entry in qcom,tlmm-common.yaml.
> 
> Signed-off-by: Richard Acayan <mailingradian@gmail.com>
> ---
>  .../devicetree/bindings/pinctrl/qcom,lpass-lpi-common.yaml  | 6 ++++++
>  1 file changed, 6 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/pinctrl/qcom,lpass-lpi-common.yaml b/Documentation/devicetree/bindings/pinctrl/qcom,lpass-lpi-common.yaml
> index 619341dd637c..0c3fa5d597e0 100644
> --- a/Documentation/devicetree/bindings/pinctrl/qcom,lpass-lpi-common.yaml
> +++ b/Documentation/devicetree/bindings/pinctrl/qcom,lpass-lpi-common.yaml
> @@ -27,6 +27,12 @@ properties:
>    gpio-ranges:
>      maxItems: 1
>  
> +  gpio-reserved-ranges:
> +    description:
> +      Pins can be reserved for trusted applications or for LPASS, thereby
> +      inaccessible from the OS. This property can be used to mark the pins
> +      which resources should not be accessed by the OS.

minItems: 1
maxItems: 30

I guess to have somoe sort reasonable limit.

Best regards,
Krzysztof