linux-kernel - Re: [PATCH v6 1/4] dt-bindings: connector: Add PCIe M.2 Mechanical Key M connector

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Message-ID: <176912450807.3729991.5158858975024322086.robh@kernel.org>
Date: Thu, 22 Jan 2026 17:28:28 -0600
From: "Rob Herring (Arm)" <robh@...nel.org>
To: Manivannan Sadhasivam <manivannan.sadhasivam@....qualcomm.com>
Cc: Bjorn Helgaas <bhelgaas@...gle.com>, Frank Li <Frank.Li@....com>,
	Stephan Gerhold <stephan.gerhold@...aro.org>,
	linux-pci@...r.kernel.org, linux-ide@...r.kernel.org,
	linux-pm@...r.kernel.org,
	Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>,
	Bartosz Golaszewski <brgl@...ev.pl>,
	Conor Dooley <conor+dt@...nel.org>, linux-kernel@...r.kernel.org,
	Bartosz Golaszewski <brgl@...nel.org>,
	Linus Walleij <linus.walleij@...aro.org>,
	Damien Le Moal <dlemoal@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Niklas Cassel <cassel@...nel.org>, devicetree@...r.kernel.org,
	linux-arm-msm@...r.kernel.org,
	Manivannan Sadhasivam <mani@...nel.org>
Subject: Re: [PATCH v6 1/4] dt-bindings: connector: Add PCIe M.2 Mechanical
 Key M connector


On Thu, 22 Jan 2026 22:46:51 +0530, Manivannan Sadhasivam wrote:
> Add the devicetree binding for PCIe M.2 Mechanical Key M connector defined
> in the PCI Express M.2 Specification, r4.0, sec 5.3. This connector
> provides interfaces like PCIe and SATA to attach the Solid State Drives
> (SSDs) to the host machine along with additional interfaces like USB, and
> SMBus for debugging and supplementary features.
> 
> The connector provides a primary power supply of 3.3v, along with an
> optional 1.8v VIO supply for the Adapter I/O buffer circuitry operating at
> 1.8v sideband signaling.
> 
> The connector also supplies optional signals in the form of GPIOs for fine
> grained power management.
> 
> Reviewed-by: Frank Li <Frank.Li@....com>
> Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@....qualcomm.com>
> ---
>  .../bindings/connector/pcie-m2-m-connector.yaml    | 145 +++++++++++++++++++++
>  1 file changed, 145 insertions(+)
> 

Reviewed-by: Rob Herring (Arm) <robh@...nel.org>