linux-kernel - Re: [PATCH v2] arm64: dts: qcom: sm8250-samsung-common: correct reserved pins

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Message-ID: <425af7b2-2195-4a18-b14a-7b2871563b12@oss.qualcomm.com>
Date: Wed, 1 Oct 2025 10:48:13 +0200
From: Konrad Dybcio <konrad.dybcio@....qualcomm.com>
To: Eric Gonçalves <ghatto404@...il.com>,
        Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio <konradybcio@...nel.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Krzysztof Kozlowski <krzk+dt@...nel.org>,
        Rob Herring <robh+dt@...nel.org>
Cc: devicetree@...r.kernel.org, linux-arm-msm@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] arm64: dts: qcom: sm8250-samsung-common: correct
 reserved pins

On 9/28/25 6:45 AM, Eric Gonçalves wrote:
> The S20 series has additional reserved pins for the fingerprint sensor,
> GPIO 20-23. Correct it by adding them into gpio-reserved-ranges.
> 
> Fixes: 6657fe9e9f23 ("arm64: dts: qcom: add initial support for Samsung Galaxy S20 FE")
> Signed-off-by: Eric Gonçalves <ghatto404@...il.com>
> ---
> Changes in v2:
> - Fixed the formatting of the <40 4> line
> - Added Fixes tag
> ---
>  arch/arm64/boot/dts/qcom/sm8250-samsung-common.dtsi | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)
> 
> diff --git a/arch/arm64/boot/dts/qcom/sm8250-samsung-common.dtsi b/arch/arm64/boot/dts/qcom/sm8250-samsung-common.dtsi
> index 96662bf9e527..a87e3d23e3e2 100644
> --- a/arch/arm64/boot/dts/qcom/sm8250-samsung-common.dtsi
> +++ b/arch/arm64/boot/dts/qcom/sm8250-samsung-common.dtsi
> @@ -159,7 +159,8 @@ &pon_resin {
>  };
>  
>  &tlmm {
> -	gpio-reserved-ranges = <40 4>; /* I2C (Unused) */
> +	gpio-reserved-ranges = <20 4>, /* SPI (fingerprint scanner) */
> +					       <40 4>, /* Unused */

Please set your tab width to 8 :)

Konrad