From: Stefano Radaelli <stefano.r@variscite.com>
Date: Wed, 3 Jun 2026 08:25:00 +0000 (+0200)
Subject: arm64: dts: imx93-var-som-symphony: add TPM support
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=6dc737d7dad1d69da4b3e71c5125287a2481042b;p=thirdparty%2Flinux.git

arm64: dts: imx93-var-som-symphony: add TPM support

Add the ST33KTPM2XI2C TPM device on the Symphony carrier board.

The TPM reset line is driven through a PCAL6408 GPIO expander, so add
the expander on the I2C bus and describe the TPM reset GPIO.

Signed-off-by: Stefano Radaelli <stefano.r@variscite.com>
Signed-off-by: Frank Li <Frank.Li@nxp.com>
---

diff --git a/arch/arm64/boot/dts/freescale/imx93-var-som-symphony.dts b/arch/arm64/boot/dts/freescale/imx93-var-som-symphony.dts
index c0842fb3cfa3..c736127c7115 100644
--- a/arch/arm64/boot/dts/freescale/imx93-var-som-symphony.dts
+++ b/arch/arm64/boot/dts/freescale/imx93-var-som-symphony.dts
@@ -208,6 +208,21 @@
 	sda-gpios = <&gpio1 1 GPIO_ACTIVE_HIGH>;
 	status = "okay";
 
+	pcal6408: gpio@21 {
+		compatible = "nxp,pcal6408";
+		reg = <0x21>;
+		gpio-controller;
+		#gpio-cells = <2>;
+		status = "okay";
+	};
+
+	st33ktpm2xi2c: tpm@2e {
+		compatible = "st,st33ktpm2xi2c", "tcg,tpm-tis-i2c";
+		reg = <0x2e>;
+		label = "tpm";
+		reset-gpios = <&pcal6408 4 GPIO_ACTIVE_LOW>;
+	};
+
 	/* Capacitive touch controller */
 	ft5x06_ts: touchscreen@38 {
 		compatible = "edt,edt-ft5206";