From: Stefano Radaelli <stefano.radaelli21@gmail•com>
To: linux-kernel@vger•kernel.org, devicetree@vger•kernel.org,
imx@lists•linux.dev, linux-arm-kernel@lists•infradead.org
Cc: pierluigi.p@variscite•com,
Stefano Radaelli <stefano.r@variscite•com>,
Rob Herring <robh@kernel•org>,
Krzysztof Kozlowski <krzk+dt@kernel•org>,
Conor Dooley <conor+dt@kernel•org>, Frank Li <Frank.Li@nxp•com>,
Sascha Hauer <s.hauer@pengutronix•de>,
Pengutronix Kernel Team <kernel@pengutronix•de>,
Fabio Estevam <festevam@gmail•com>
Subject: [PATCH v3 03/14] arm64: dts: imx8mp-var-som-symphony: add TPM support
Date: Wed, 3 Jun 2026 16:37:10 +0200 [thread overview]
Message-ID: <2e7ff00b61aaa855aaa2c6d9ad6e98eb673bacf5.1780497188.git.stefano.r@variscite.com> (raw)
In-Reply-To: <cover.1780497188.git.stefano.r@variscite.com>
From: Stefano Radaelli <stefano.r@variscite•com>
Add the ST33KTPM2XI2C TPM device on the Symphony carrier board.
Enable the I2C4 bus, add the PCAL6408 GPIO expander used by the TPM and
describe the TPM reset line.
Signed-off-by: Stefano Radaelli <stefano.r@variscite•com>
---
v2->v3:
-
v1->v2:
-
.../dts/freescale/imx8mp-var-som-symphony.dts | 39 +++++++++++++++++++
1 file changed, 39 insertions(+)
diff --git a/arch/arm64/boot/dts/freescale/imx8mp-var-som-symphony.dts b/arch/arm64/boot/dts/freescale/imx8mp-var-som-symphony.dts
index 76928b005826..6c19a63ce405 100644
--- a/arch/arm64/boot/dts/freescale/imx8mp-var-som-symphony.dts
+++ b/arch/arm64/boot/dts/freescale/imx8mp-var-som-symphony.dts
@@ -116,6 +116,31 @@ typec_dr_sw: endpoint {
};
};
+&i2c4 {
+ clock-frequency = <400000>;
+ pinctrl-names = "default", "gpio", "sleep";
+ pinctrl-0 = <&pinctrl_i2c4>;
+ pinctrl-1 = <&pinctrl_i2c4_gpio>;
+ pinctrl-2 = <&pinctrl_i2c4_gpio>;
+ scl-gpios = <&gpio5 20 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>;
+ sda-gpios = <&gpio5 21 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>;
+ status = "okay";
+
+ pcal6408: gpio@21 {
+ compatible = "nxp,pcal6408";
+ reg = <0x21>;
+ #gpio-cells = <2>;
+ gpio-controller;
+ };
+
+ st33ktpm2xi2c: tpm@2e {
+ compatible = "st,st33ktpm2xi2c", "tcg,tpm-tis-i2c";
+ reg = <0x2e>;
+ label = "tpm";
+ reset-gpios = <&pcal6408 4 GPIO_ACTIVE_LOW>;
+ };
+};
+
&snvs_pwrkey {
status = "okay";
};
@@ -201,6 +226,20 @@ MX8MP_IOMUXC_I2C3_SDA__GPIO5_IO19 0x1c2
>;
};
+ pinctrl_i2c4: i2c4grp {
+ fsl,pins = <
+ MX8MP_IOMUXC_I2C4_SCL__I2C4_SCL 0x400001c2
+ MX8MP_IOMUXC_I2C4_SDA__I2C4_SDA 0x400001c2
+ >;
+ };
+
+ pinctrl_i2c4_gpio: i2c4gpiogrp {
+ fsl,pins = <
+ MX8MP_IOMUXC_I2C4_SCL__GPIO5_IO20 0x1c2
+ MX8MP_IOMUXC_I2C4_SDA__GPIO5_IO21 0x1c2
+ >;
+ };
+
pinctrl_pca9534: pca9534grp {
fsl,pins = <
MX8MP_IOMUXC_GPIO1_IO15__GPIO1_IO15 0xc0
--
2.47.3
next prev parent reply other threads:[~2026-06-03 14:37 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-06-03 14:37 [PATCH v3 00/14] arm64: dts: imx8mp-var-som-symphony: align DTS with hardware revision Stefano Radaelli
2026-06-03 14:37 ` [PATCH v3 01/14] arm64: dts: imx8mp-var-som-symphony: add input keys Stefano Radaelli
2026-06-03 14:37 ` [PATCH v3 02/14] arm64: dts: imx8mp-var-som-symphony: enable USB support Stefano Radaelli
2026-06-03 14:37 ` Stefano Radaelli [this message]
2026-06-03 14:37 ` [PATCH v3 04/14] arm64: dts: imx8mp-var-som-symphony: add external RTC Stefano Radaelli
2026-06-03 14:37 ` [PATCH v3 05/14] arm64: dts: imx8mp-var-som-symphony: enable header UARTs Stefano Radaelli
2026-06-03 14:37 ` [PATCH v3 06/14] arm64: dts: imx8mp-var-som-symphony: enable PCIe Stefano Radaelli
2026-06-03 17:27 ` Frank Li
2026-06-03 14:37 ` [PATCH v3 07/14] arm64: dts: imx8mp-var-som-symphony: add HDMI support Stefano Radaelli
2026-06-03 14:37 ` [PATCH v3 08/14] arm64: dts: imx8mp-var-som-symphony: add capacitive touchscreen Stefano Radaelli
2026-06-03 14:37 ` [PATCH v3 09/14] arm64: dts: imx8mp-var-som-symphony: enable ECSPI2 Stefano Radaelli
2026-06-03 14:37 ` [PATCH v3 10/14] arm64: dts: imx8mp-var-som-symphony: keep RGB_SEL low Stefano Radaelli
2026-06-03 14:37 ` [PATCH v3 11/14] arm64: dts: imx8mp-var-som-symphony: enable PWM1 Stefano Radaelli
2026-06-03 14:37 ` [PATCH v3 12/14] arm64: dts: imx8mp-var-som-symphony: enable CAN Stefano Radaelli
2026-06-03 14:37 ` [PATCH v3 13/14] arm64: dts: imx8mp-var-som-symphony: add second Ethernet port Stefano Radaelli
2026-06-03 14:37 ` [PATCH v3 14/14] arm64: dts: freescale: imx8mp-var-som: add I2C1 bus recovery GPIOs Stefano Radaelli
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=2e7ff00b61aaa855aaa2c6d9ad6e98eb673bacf5.1780497188.git.stefano.r@variscite.com \
--to=stefano.radaelli21@gmail$(echo .)com \
--cc=Frank.Li@nxp$(echo .)com \
--cc=conor+dt@kernel$(echo .)org \
--cc=devicetree@vger$(echo .)kernel.org \
--cc=festevam@gmail$(echo .)com \
--cc=imx@lists$(echo .)linux.dev \
--cc=kernel@pengutronix$(echo .)de \
--cc=krzk+dt@kernel$(echo .)org \
--cc=linux-arm-kernel@lists$(echo .)infradead.org \
--cc=linux-kernel@vger$(echo .)kernel.org \
--cc=pierluigi.p@variscite$(echo .)com \
--cc=robh@kernel$(echo .)org \
--cc=s.hauer@pengutronix$(echo .)de \
--cc=stefano.r@variscite$(echo .)com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox