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arm64: dts: imx8mn-var-som-symphony: Add TPM2 support

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Add support for the TPM2 device on the VAR-SOM Symphony carrier board.

The ST33K TPM2 is connected over I2C, and A PCA6408 GPIO expander is
used to control the reset signal required to release the TPM from reset.

Add the PCA6408 GPIO expander and the ST33K TPM2 device node.

Signed-off-by: Stefano Radaelli <stefano.r@variscite.com>
Signed-off-by: Frank Li <Frank.Li@nxp.com>
This commit is contained in:
Stefano Radaelli 2026-07-06 11:34:40 +02:00 committed by Frank Li
parent 5580a6278c
commit 8576126c7c
1 changed files with 14 additions and 0 deletions
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14
arch/arm64/boot/dts/freescale/imx8mn-var-som-symphony.dts
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@ -160,6 +160,20 @@ typec1_dr_sw: endpoint {
};
&i2c3 {
pca6408: gpio@21 {
compatible = "nxp,pcal6408";
reg = <0x21>;
gpio-controller;
#gpio-cells = <2>;
};
st33ktpm2xi2c: tpm@2e {
compatible = "st,st33ktpm2xi2c", "tcg,tpm-tis-i2c";
reg = <0x2e>;
label = "tpm";
reset-gpios = <&pca6408 4 GPIO_ACTIVE_LOW>;
};
/* Capacitive touch controller */
ft5x06_ts: touchscreen@38 {
compatible = "edt,edt-ft5406";