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

From: Konrad Dybcio

Date: Wed Nov 12 2025 - 04:28:06 EST


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@xxxxxxxxxxxxxxxx>
> ---
> 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@xxxxxxxxxxxxxxxx>
> Link: https://lore.kernel.org/linux-arm-msm/20251106102448.3585332-1-xueyao.an@xxxxxxxxxxxxxxxx/
> ---
> 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@xxxxxxxxxxxxxxxx
>
> 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@xxxxxxxxxxxxxxxx
> ---
> 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,