linux-kernel - [PATCH v2 04/12] arm64: dts: imx8mm-kontron: Add Sitronix touch controller in DL devicetree

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Message-ID: <20250721100701.115548-5-frieder@fris.de>
Date: Mon, 21 Jul 2025 12:05:38 +0200
From: Frieder Schrempf <frieder@...s.de>
To: linux-arm-kernel@...ts.infradead.org,
	Conor Dooley <conor+dt@...nel.org>,
	devicetree@...r.kernel.org,
	imx@...ts.linux.dev,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	linux-kernel@...r.kernel.org,
	Rob Herring <robh@...nel.org>,
	Sascha Hauer <s.hauer@...gutronix.de>,
	Shawn Guo <shawnguo@...nel.org>
Cc: Oualid Derouiche <oualid.derouiche@...tron.de>,
	Frieder Schrempf <frieder.schrempf@...tron.de>,
	Fabio Estevam <festevam@...il.com>,
	Pengutronix Kernel Team <kernel@...gutronix.de>
Subject: [PATCH v2 04/12] arm64: dts: imx8mm-kontron: Add Sitronix touch controller in DL devicetree

From: Oualid Derouiche <oualid.derouiche@...tron.de>

Some new panels have the Sitronix touch instead of Goodix. Support them
by adding a node for the new controller. The bootloader needs to detect
the correct controller and enable/disable the nodes accordingly. To make
this easier add labels for both nodes.

Signed-off-by: Oualid Derouiche <oualid.derouiche@...tron.de>
Signed-off-by: Frieder Schrempf <frieder.schrempf@...tron.de>
---
Changes for v2:
* fix node name (thanks Fabio!)
* add labels
---
 .../arm64/boot/dts/freescale/imx8mm-kontron-dl.dtso | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/freescale/imx8mm-kontron-dl.dtso b/arch/arm64/boot/dts/freescale/imx8mm-kontron-dl.dtso
index 1db27731b581c..57d0739fcce32 100644
--- a/arch/arm64/boot/dts/freescale/imx8mm-kontron-dl.dtso
+++ b/arch/arm64/boot/dts/freescale/imx8mm-kontron-dl.dtso
@@ -107,7 +107,7 @@ &i2c2 {
 	#size-cells = <0>;
 	status = "okay";
 
-	touchscreen@5d {
+	gt911: touchscreen@5d {
 		compatible = "goodix,gt928";
 		reg = <0x5d>;
 		pinctrl-names = "default";
@@ -117,6 +117,17 @@ touchscreen@5d {
 		reset-gpios = <&gpio3 23 0>;
 		irq-gpios = <&gpio3 22 0>;
 	};
+
+	st1633: touchscreen@55 {
+		compatible = "sitronix,st1633";
+		reg = <0x55>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_touch>;
+		interrupts = <22 8>;
+		interrupt-parent = <&gpio3>;
+		gpios = <&gpio3 22 0>;
+		status = "disabled";
+	};
 };
 
 &lvds {
-- 
2.50.1