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

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Message-ID: <aar5oq4xvlbpjmitnwzti5w7gitf7wxdas4bflx6eqh3r6srt7@iccpujd6xc4m>
Date: Mon, 22 Sep 2025 12:51:30 +0300
From: Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>
To: Eric Gonçalves <ghatto404@...il.com>
Cc: 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>, devicetree@...r.kernel.org,
        linux-arm-msm@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] arm64: dts: qcom: sm8250-samsung-common: correct
 reserved pins

On Sun, Sep 21, 2025 at 01:56:23PM +0000, 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.
> 
> Signed-off-by: Eric Gonçalves <ghatto404@...il.com>
> ---
>  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..1680be67e733 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>; /* I2C (Unused) */

Typically Tab size is 8 spaces, not 4.


Also:

Fixes: 6657fe9e9f23 ("arm64: dts: qcom: add initial support for Samsung Galaxy S20 FE")


>  };
>  
>  &usb_1 {
> -- 
> 2.51.0
> 

-- 
With best wishes
Dmitry