[PATCH] arm64: dts: qcom: shikra: Enable dTPM on EVK boards

[PATCH] arm64: dts: qcom: shikra: Enable dTPM on EVK boards

[Khalid Faisal Ansari]

The Shikra EVK boards (CQM, CQS, IQS) carry an ST33 discrete TPM
connected via SPI5. Enable the SPI controller and add the TPM node
with the ST33HTPM compatible and a 20 MHz max clock.

Depends-on: https://lore.kernel.org/all/20260820085347.822-1-xueyao.an@oss.qualcomm.com/
Signed-off-by: Khalid Faisal Ansari <khalid.ansari@oss.qualcomm.com>
---
The Shikra EVK boards (CQM, CQS, IQS) have an ST33 discrete TPM (dTPM)
connected over SPI5. Enable the SPI controller and add the TPM node for
all three board variants.

This series depends on the SPI5 node addition in shikra-evk.dtsi:
  https://lore.kernel.org/all/20260820085347.822-1-xueyao.an@oss.qualcomm.com/
---
 arch/arm64/boot/dts/qcom/shikra-cqm-evk.dts | 10 ++++++++++
 arch/arm64/boot/dts/qcom/shikra-cqs-evk.dts | 10 ++++++++++
 arch/arm64/boot/dts/qcom/shikra-iqs-evk.dts | 10 ++++++++++
 3 files changed, 30 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/shikra-cqm-evk.dts b/arch/arm64/boot/dts/qcom/shikra-cqm-evk.dts
index b112b21b1d79..32916e9df9d3 100644
--- a/arch/arm64/boot/dts/qcom/shikra-cqm-evk.dts
+++ b/arch/arm64/boot/dts/qcom/shikra-cqm-evk.dts
@@ -57,3 +57,13 @@ &sdhc_1 {
 
 	status = "okay";
 };
+
+&spi5 {
+	status = "okay";
+
+	tpm@0 {
+		compatible = "st,st33htpm-spi", "tcg,tpm_tis-spi";
+		reg = <0>;
+		spi-max-frequency = <20000000>;
+	};
+};
diff --git a/arch/arm64/boot/dts/qcom/shikra-cqs-evk.dts b/arch/arm64/boot/dts/qcom/shikra-cqs-evk.dts
index e62ba5aef71f..bacdc7c77c2f 100644
--- a/arch/arm64/boot/dts/qcom/shikra-cqs-evk.dts
+++ b/arch/arm64/boot/dts/qcom/shikra-cqs-evk.dts
@@ -57,3 +57,13 @@ &sdhc_1 {
 
 	status = "okay";
 };
+
+&spi5 {
+	status = "okay";
+
+	tpm@0 {
+		compatible = "st,st33htpm-spi", "tcg,tpm_tis-spi";
+		reg = <0>;
+		spi-max-frequency = <20000000>;
+	};
+};
diff --git a/arch/arm64/boot/dts/qcom/shikra-iqs-evk.dts b/arch/arm64/boot/dts/qcom/shikra-iqs-evk.dts
index 727809430fd1..b42f94708bfd 100644
--- a/arch/arm64/boot/dts/qcom/shikra-iqs-evk.dts
+++ b/arch/arm64/boot/dts/qcom/shikra-iqs-evk.dts
@@ -57,3 +57,13 @@ &sdhc_1 {
 
 	status = "okay";
 };
+
+&spi5 {
+	status = "okay";
+
+	tpm@0 {
+		compatible = "st,st33htpm-spi", "tcg,tpm_tis-spi";
+		reg = <0>;
+		spi-max-frequency = <20000000>;
+	};
+};

---
base-commit: a4ff2be345d0abc943da8dd8da98151843b750dc
change-id: 20260820-shikra_dtpm-2bc494dd6756

Best regards,
-- 
Khalid Faisal Ansari <khalid.ansari@oss.qualcomm.com>

Re: [PATCH] arm64: dts: qcom: shikra: Enable dTPM on EVK boards

[Konrad Dybcio]

On 8/20/26 11:16 AM, Khalid Faisal Ansari wrote:
> The Shikra EVK boards (CQM, CQS, IQS) carry an ST33 discrete TPM
> connected via SPI5. Enable the SPI controller and add the TPM node
> with the ST33HTPM compatible and a 20 MHz max clock.
> 
> Depends-on: https://lore.kernel.org/all/20260820085347.822-1-xueyao.an@oss.qualcomm.com/

This is not a valid tag to put in the commit message

Why haven't you sent the two clearly interdependent patches together?

> Signed-off-by: Khalid Faisal Ansari <khalid.ansari@oss.qualcomm.com>
> ---
> The Shikra EVK boards (CQM, CQS, IQS) have an ST33 discrete TPM (dTPM)
> connected over SPI5. Enable the SPI controller and add the TPM node for
> all three board variants.
> 
> This series depends on the SPI5 node addition in shikra-evk.dtsi:
>   https://lore.kernel.org/all/20260820085347.822-1-xueyao.an@oss.qualcomm.com/
> ---
>  arch/arm64/boot/dts/qcom/shikra-cqm-evk.dts | 10 ++++++++++
>  arch/arm64/boot/dts/qcom/shikra-cqs-evk.dts | 10 ++++++++++
>  arch/arm64/boot/dts/qcom/shikra-iqs-evk.dts | 10 ++++++++++

Turn this into a single addition to shikra-evk.dtsi

Konrad

Re: [PATCH] arm64: dts: qcom: shikra: Enable dTPM on EVK boards

[Abel Vesa]

On 26-08-20 14:46:07, Khalid Faisal Ansari wrote:
> The Shikra EVK boards (CQM, CQS, IQS) carry an ST33 discrete TPM
> connected via SPI5. Enable the SPI controller and add the TPM node
> with the ST33HTPM compatible and a 20 MHz max clock.
> 
> Depends-on: https://lore.kernel.org/all/20260820085347.822-1-xueyao.an@oss.qualcomm.com/
> Signed-off-by: Khalid Faisal Ansari <khalid.ansari@oss.qualcomm.com>

Reviewed-by: Abel Vesa <abel.vesa@oss.qualcomm.com>