linux-kernel - Re: (subset) [PATCH v6 0/4] PCI: Add initial support for handling PCIe M.2 connectors in devicetree

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Message-ID: <176916069326.12678.16550242235025273411.b4-ty@oss.qualcomm.com>
Date: Fri, 23 Jan 2026 10:31:38 +0100
From: Bartosz Golaszewski <bartosz.golaszewski@....qualcomm.com>
To: Bjorn Helgaas <bhelgaas@...gle.com>,
        Manivannan Sadhasivam <mani@...nel.org>, Rob Herring <robh@...nel.org>,
        Krzysztof Kozlowski <krzk+dt@...nel.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Bartosz Golaszewski <brgl@...ev.pl>,
        Damien Le Moal <dlemoal@...nel.org>, Niklas Cassel <cassel@...nel.org>,
        Linus Walleij <linus.walleij@...aro.org>,
        Bartosz Golaszewski <brgl@...nel.org>,
        Manivannan Sadhasivam <manivannan.sadhasivam@....qualcomm.com>
Cc: Bartosz Golaszewski <bartosz.golaszewski@....qualcomm.com>,
        linux-kernel@...r.kernel.org, linux-pci@...r.kernel.org,
        devicetree@...r.kernel.org, linux-arm-msm@...r.kernel.org,
        Stephan Gerhold <stephan.gerhold@...aro.org>,
        Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>,
        linux-pm@...r.kernel.org, linux-ide@...r.kernel.org,
        Frank Li <Frank.Li@....com>,
        Bartosz Golaszewski <bartosz.golaszewski@...aro.org>
Subject: Re: (subset) [PATCH v6 0/4] PCI: Add initial support for handling PCIe M.2 connectors in devicetree


On Thu, 22 Jan 2026 22:46:50 +0530, Manivannan Sadhasivam wrote:
> This series is an initial attempt to support the PCIe M.2 connectors in the
> kernel and devicetree binding. The PCIe M.2 connectors as defined in the PCI
> Express M.2 Specification are widely used in Notebooks/Tablet form factors (even
> in PCs). On the ACPI platforms, power to these connectors are mostly handled by
> the firmware/BIOS and the kernel never bothered to directly power manage them as
> like other PCIe connectors. But on the devicetree platforms, the kernel needs to
> power manage these connectors with the help of the devicetree description. But
> so far, there is no proper representation of the M.2 connectors in devicetree
> binding. This forced the developers to fake the M.2 connectors as PMU nodes [1]
> and fixed regulators in devicetree.
> 
> [...]

Applied, thanks!

[1/4] dt-bindings: connector: Add PCIe M.2 Mechanical Key M connector
      commit: 926194a6675a9cd5943f85820508648b74669fc6
[4/4] power: sequencing: Add the Power Sequencing driver for the PCIe M.2 connectors
      commit: 52e7b5bd62bab3851f25d8b70ad7eae9e94aba60

Best regards,
-- 
Bartosz Golaszewski <bartosz.golaszewski@....qualcomm.com>