From: Marek Vasut <marex@nabladev.com>
To: Krzysztof Kozlowski <krzk@kernel.org>
Cc: linux-usb@vger.kernel.org, fabrice.gasnier@foss.st.com,
Alexandre Torgue <alexandre.torgue@foss.st.com>,
Christian Bruel <christian.bruel@foss.st.com>,
Conor Dooley <conor+dt@kernel.org>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Krzysztof Kozlowski <krzk+dt@kernel.org>,
Maxime Coquelin <mcoquelin.stm32@gmail.com>,
Neil Armstrong <neil.armstrong@linaro.org>,
Pankaj Dev <pankaj.dev@st.com>,
Rahul Kumar <rahul.kumar05@st.com>, Rob Herring <robh@kernel.org>,
Rosen Penev <rosenp@gmail.com>,
Thinh Nguyen <Thinh.Nguyen@synopsys.com>,
Vinod Koul <vkoul@kernel.org>,
devicetree@vger.kernel.org, kernel@dh-electronics.com,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, linux-phy@lists.infradead.org,
linux-stm32@st-md-mailman.stormreply.com
Subject: Re: [PATCH v3 7/9] dt-bindings: arm: stm32: Switch st,stm32mp23/25-syscfg into simple-mfd
Date: Fri, 28 Aug 2026 03:03:03 +0200 [thread overview]
Message-ID: <202b1b0d-5ccd-4fcf-bc7b-bc013dd84774@nabladev.com> (raw)
In-Reply-To: <3264c2d2-4c53-44c0-8164-d2d83f75c175@kernel.org>
On 8/27/26 11:35 PM, Krzysztof Kozlowski wrote:
> On 27/08/2026 17:04, Marek Vasut wrote:
>> On 8/27/26 3:07 PM, Krzysztof Kozlowski wrote:
>>>
>>> OTOH2, you have now patchset dependency which is nowwhere explained.
>>> Merging constraints are the most important part of cover letter so must
>>> be clearly stated. IMO, should be stated also here, because many
>>> maintainers do not read cover letters. Or just decouple dependencies
>>> with using 'compatibles' pattern (see Qualcomm msm/mdss display
>>> bindings).
>> I wonder, wouldn't it be better to write a driver which binds to
>> st,stm32mp25-syscfg , handles the SYSCFG clock, and does some
>> of_platform_populate() to bring up the PHYs (DT subnodes) ?
>>
>> I think that would resolve the ABI break problem, since we wouldn't need
>> the simple-mfd compatible anymore. And it would also correctly handle
>> the SYSCFG clock.
>>
>> What do you think ?
>
> Yes, it is better and more flexible approach. Solves ABI impact.
All right, let's do that.
next prev parent reply other threads:[~2026-08-28 1:21 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-08-22 7:46 [PATCH v3 0/9] arm64: dts: phy: st: usb: Add STM32MP2 USB support Marek Vasut
2026-08-22 7:46 ` [PATCH v3 1/9] dt-bindings: phy: Document ST STM32MP25 USB2-FEMTO PHY Marek Vasut
2026-08-27 12:54 ` Krzysztof Kozlowski
2026-08-27 14:53 ` Marek Vasut
2026-08-27 21:33 ` Krzysztof Kozlowski
2026-08-27 23:14 ` Marek Vasut
2026-08-28 6:37 ` Krzysztof Kozlowski
2026-08-28 9:11 ` Krzysztof Kozlowski
2026-08-28 13:11 ` Marek Vasut
2026-08-22 7:46 ` [PATCH v3 2/9] phy: stm32: Add support for " Marek Vasut
2026-08-24 13:17 ` Fabrice Gasnier
2026-08-24 14:53 ` Marek Vasut
2026-08-27 16:00 ` Vinod Koul
2026-08-27 16:52 ` Marek Vasut
2026-08-22 7:46 ` [PATCH v3 3/9] dt-bindings: usb: generic-ehci: Document access-controllers property Marek Vasut
2026-08-28 9:13 ` Krzysztof Kozlowski
2026-08-28 13:44 ` Marek Vasut
2026-08-22 7:46 ` [PATCH v3 4/9] dt-bindings: usb: generic-ohci: " Marek Vasut
2026-08-22 7:46 ` [PATCH v3 5/9] dt-bindings: usb: dwc3: Document ST STM32MP2 DWC3 xHCI USB controller Marek Vasut
2026-08-27 12:59 ` Krzysztof Kozlowski
2026-08-27 14:56 ` Marek Vasut
2026-08-22 7:46 ` [PATCH v3 6/9] usb: dwc3: dwc3-generic-plat: Add ST STM32MP2 DWC3 xHCI USB controller glue Marek Vasut
2026-08-22 7:46 ` [PATCH v3 7/9] dt-bindings: arm: stm32: Switch st,stm32mp23/25-syscfg into simple-mfd Marek Vasut
2026-08-27 13:07 ` Krzysztof Kozlowski
2026-08-27 15:04 ` Marek Vasut
2026-08-27 21:35 ` Krzysztof Kozlowski
2026-08-28 1:03 ` Marek Vasut [this message]
2026-08-22 7:46 ` [PATCH v3 8/9] arm64: dts: st: Add USB nodes on stm32mp231 Marek Vasut
2026-08-24 13:18 ` Fabrice Gasnier
2026-08-24 14:39 ` Marek Vasut
2026-08-22 7:46 ` [PATCH v3 9/9] arm64: dts: st: Add USB nodes on stm32mp251 Marek Vasut
2026-08-24 13:19 ` Fabrice Gasnier
2026-08-24 14:39 ` Marek Vasut
2026-08-28 9:15 ` Krzysztof Kozlowski
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