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 c0842fb3cfa33a2b8c2942cf5f2bd8e74385c239..c736127c7115ec86d8bb5325d3f87b5501d92ae3 100644 (file)
--- 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";