[PATCH] arm64: dts: st: Move Bluetooth to USART2 on STM32MP23xx DHCOS SoM

From: Marek Vasut

Date: Mon Oct 26 2026 - 09:04:37 EST


The Bluetooth chip is connected to USART2 on STM32MP23xx DHCOS SoM,
adjust the DT to match the schematic.

Fixes: 6642d6a47901 ("arm64: dts: st: Add support for DH electronics STM32MP23xx/STM32MP25xx DHCOS SoM and Breakout Board and DHSBC")
Signed-off-by: Marek Vasut <marex@xxxxxxxxxxxx>
---
Cc: Alexandre Torgue <alexandre.torgue@xxxxxxxxxxx>
Cc: Christoph Niedermaier <cniedermaier@xxxxxxxxxxxxxxxxxx>
Cc: Conor Dooley <conor+dt@xxxxxxxxxx>
Cc: Krzysztof Kozlowski <krzk+dt@xxxxxxxxxx>
Cc: Maxime Coquelin <mcoquelin.stm32@xxxxxxxxx>
Cc: Rob Herring <robh@xxxxxxxxxx>
Cc: devicetree@xxxxxxxxxxxxxxx
Cc: kernel@xxxxxxxxxxxxxxxxxx
Cc: linux-arm-kernel@xxxxxxxxxxxxxxxxxxx
Cc: linux-kernel@xxxxxxxxxxxxxxx
Cc: linux-stm32@xxxxxxxxxxxxxxxxxxxxxxxxxxxx
---
.../arm64/boot/dts/st/stm32mp23xx-dhcos-som.dtsi | 16 ++++++++--------
1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/arch/arm64/boot/dts/st/stm32mp23xx-dhcos-som.dtsi b/arch/arm64/boot/dts/st/stm32mp23xx-dhcos-som.dtsi
index ffdcceb2fa237..5d4624c3200ad 100644
--- a/arch/arm64/boot/dts/st/stm32mp23xx-dhcos-som.dtsi
+++ b/arch/arm64/boot/dts/st/stm32mp23xx-dhcos-som.dtsi
@@ -24,7 +24,6 @@ &rv3032 {
interrupts-extended = <&gpiod 10 IRQ_TYPE_EDGE_FALLING>;
};

-/* Bluetooth */
&usart1 {
pinctrl-names = "default", "sleep", "idle";
pinctrl-0 = <&usart1_pins_a>;
@@ -32,15 +31,9 @@ &usart1 {
pinctrl-2 = <&usart1_idle_pins_a>;
uart-has-rtscts;
status = "okay";
-
- bluetooth {
- compatible = "infineon,cyw55572-bt";
- brcm,requires-autobaud-mode;
- max-speed = <3000000>;
- shutdown-gpios = <&ioexp 2 GPIO_ACTIVE_HIGH>;
- };
};

+/* Bluetooth */
&usart2 {
pinctrl-names = "default", "sleep", "idle";
pinctrl-0 = <&usart2_pins_b>;
@@ -48,4 +41,11 @@ &usart2 {
pinctrl-2 = <&usart2_idle_pins_b>;
uart-has-rtscts;
status = "okay";
+
+ bluetooth {
+ compatible = "infineon,cyw55572-bt";
+ brcm,requires-autobaud-mode;
+ max-speed = <3000000>;
+ shutdown-gpios = <&ioexp 2 GPIO_ACTIVE_HIGH>;
+ };
};
--
2.53.0