linux-kernel - Re: [PATCH v5 0/9] Introduce HDP support for STM32MP platforms

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Message-ID: <CAMRc=MeTmwgbHv9R_=GFmjkAV4Nvc-SeSCOz1k6pnGUrF+R9Mg@mail.gmail.com>
Date: Mon, 16 Jun 2025 10:05:12 +0200
From: Bartosz Golaszewski <brgl@...ev.pl>
To: Clément Le Goffic <clement.legoffic@...s.st.com>, 
	Linus Walleij <linus.walleij@...aro.org>
Cc: Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>, 
	Conor Dooley <conor+dt@...nel.org>, Maxime Coquelin <mcoquelin.stm32@...il.com>, 
	Alexandre Torgue <alexandre.torgue@...s.st.com>, linux-kernel@...r.kernel.org, 
	linux-gpio@...r.kernel.org, devicetree@...r.kernel.org, 
	linux-stm32@...md-mailman.stormreply.com, 
	linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH v5 0/9] Introduce HDP support for STM32MP platforms

On Fri, Jun 13, 2025 at 12:16 PM Clément Le Goffic
<clement.legoffic@...s.st.com> wrote:
>
> This patch series introduces the Hardware Debug Port (HDP) support for
> STM32MP platforms.
>
> It includes updates to the mmio gpio driver, 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@...s.st.com>
> ---

[snip]

> ---
> Clément Le Goffic (9):
>       gpio: mmio: add BGPIOF_NO_INPUT flag for GPO gpiochip
>       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
>

Patches 1-4 and 5-9 can go upstream independently. I suggest taking
patch 1/9 through the GPIO tree and providing an immutable tag to
Linus to take patches 2-4 through the pinctrl tree. Linus: are you OK
with that?

Bart