linux-kernel - Re: [PATCH v3] arm64: dts: qcom: hamoa-iot-evk: Enable TPM (ST33) on SPI11

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Message-ID: <55eb7543-7b88-42e2-bb11-7c54c4e59801@oss.qualcomm.com>
Date: Wed, 12 Nov 2025 10:28:01 +0100
From: Konrad Dybcio <konrad.dybcio@....qualcomm.com>
To: Khalid Faisal Ansari <khalid.ansari@....qualcomm.com>,
        Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio <konradybcio@...nel.org>, Rob Herring <robh@...nel.org>,
        Krzysztof Kozlowski <krzk+dt@...nel.org>,
        Conor Dooley <conor+dt@...nel.org>
Cc: linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3] arm64: dts: qcom: hamoa-iot-evk: Enable TPM (ST33) on
 SPI11

On 11/12/25 8:42 AM, Khalid Faisal Ansari wrote:
> Enable ST33HTPM TPM over SPI11 on the Hamoa IoT EVK by adding the
> required SPI and TPM nodes.
> 
> Signed-off-by: Khalid Faisal Ansari <khalid.ansari@....qualcomm.com>
> ---
> Testing:
> - TPM detected via tpm_tis_spi
> - Verified functionality using tpm2-tools (e.g. tpm2_getrandom, tpm2_rsadecrypt)
> 
> Depends on:
> - <20251106102448.3585332-1-xueyao.an@....qualcomm.com>
>   Link: https://lore.kernel.org/linux-arm-msm/20251106102448.3585332-1-xueyao.an@oss.qualcomm.com/
> ---
> Changes in v3:
> - Squashed patches touching the same file into one.

Doesn't seem to be the case

Konrad

> - Link to v2: https://lore.kernel.org/r/20251111-arm64-dts-qcom-hamoa-iot-evk-enable-st33-tpm-on-spi11-v2-0-101a801974b6@oss.qualcomm.com
> 
> Changes in v2:
> - Use "tcg,tpm_tis-spi" compatible to satisfy dtbs_check (was vendor-only).
> - Add dependency change in cover letter.
> - Link to v1: https://lore.kernel.org/r/20251107-arm64-dts-qcom-hamoa-iot-evk-enable-st33-tpm-on-spi11-v1-1-8ba83b58fca7@oss.qualcomm.com
> ---
>  arch/arm64/boot/dts/qcom/hamoa-iot-evk.dts | 10 ++++++++++
>  1 file changed, 10 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/qcom/hamoa-iot-evk.dts b/arch/arm64/boot/dts/qcom/hamoa-iot-evk.dts
> index 36dd6599402b..aecaebebcef5 100644
> --- a/arch/arm64/boot/dts/qcom/hamoa-iot-evk.dts
> +++ b/arch/arm64/boot/dts/qcom/hamoa-iot-evk.dts
> @@ -917,6 +917,16 @@ &smb2360_2_eusb2_repeater {
>  	vdd3-supply = <&vreg_l8b_3p0>;
>  };
>  
> +&spi11 {
> +	status = "okay";
> +
> +	tpm@0 {
> +		compatible = "st,st33htpm-spi", "tcg,tpm_tis-spi";
> +		reg = <0>;
> +		spi-max-frequency = <20000000>;
> +	};
> +};
> +
>  &swr0 {
>  	status = "okay";
>  
> 
> ---
> base-commit: 9c0826a5d9aa4d52206dd89976858457a2a8a7ed
> change-id: 20251107-arm64-dts-qcom-hamoa-iot-evk-enable-st33-tpm-on-spi11-c8353d7fe82e
> 
> Best regards,