This patch series introduces the Hardware Debug Port (HDP) support for STM32MP platforms. It includes the addition of device tree bindings, the HDP driver, and updates to the device tree files for STM32MP13, STM32MP15, and STM32MP25 SoCs. The series also updates the MAINTAINERS file to include myself as the maintainer for the STM32 HDP driver and adds the necessary pinmux configurations for HDP pins on STM32MP157C-DK2 as example. Signed-off-by: Clément Le Goffic <clement.legoffic@xxxxxxxxxxx> --- Clément Le Goffic (9): dt-bindings: pinctrl: stm32: Add HDP includes for stm32mp platforms dt-bindings: pinctrl: stm32: Introduce HDP pinctrl: stm32: Introduce HDP driver MAINTAINERS: Add Clément Le Goffic as STM32 HDP maintainer ARM: dts: stm32: add Hardware debug port (HDP) on stm32mp13 ARM: dts: stm32: add Hardware debug port (HDP) on stm32mp15 ARM: dts: stm32: add Hardware debug port (HDP) on stm32mp25 ARM: dts: stm32: add alternate pinmux for HDP pin and add HDP pinctrl node ARM: dts: stm32: add Hardware debug port (HDP) on stm32mp157c-dk2 board .../bindings/pinctrl/st,stm32-pinctrl-hdp.yaml | 72 +++++ MAINTAINERS | 7 + arch/arm/boot/dts/st/stm32mp131.dtsi | 7 + arch/arm/boot/dts/st/stm32mp15-pinctrl.dtsi | 26 ++ arch/arm/boot/dts/st/stm32mp151.dtsi | 7 + arch/arm/boot/dts/st/stm32mp157c-dk2.dts | 6 + arch/arm64/boot/dts/st/stm32mp251.dtsi | 7 + drivers/pinctrl/stm32/Kconfig | 14 + drivers/pinctrl/stm32/Makefile | 1 + drivers/pinctrl/stm32/pinctrl-stm32-hdp.c | 301 +++++++++++++++++++++ include/dt-bindings/pinctrl/stm32mp13-hdp.h | 130 +++++++++ include/dt-bindings/pinctrl/stm32mp15-hdp.h | 116 ++++++++ include/dt-bindings/pinctrl/stm32mp25-hdp.h | 144 ++++++++++ 13 files changed, 838 insertions(+) --- base-commit: d01895c5b11849113e70f012d9d142f1d88852f0 change-id: 20250224-hdp-upstream-622e5da14a9f Best regards, -- Clément Le Goffic <clement.legoffic@xxxxxxxxxxx>