linux-kernel - Re: [PATCH v6 2/4] PCI/pwrctrl: Add support for handling PCIe M.2 connectors

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Message-ID: <20260124212401.GA181386@bhelgaas>
Date: Sat, 24 Jan 2026 15:24:01 -0600
From: Bjorn Helgaas <helgaas@...nel.org>
To: manivannan.sadhasivam@....qualcomm.com
Cc: 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>, 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,
	Bartosz Golaszewski <bartosz.golaszewski@...aro.org>
Subject: Re: [PATCH v6 2/4] PCI/pwrctrl: Add support for handling PCIe M.2
 connectors

On Thu, Jan 22, 2026 at 10:46:52PM +0530, Manivannan Sadhasivam via B4 Relay wrote:
> From: Manivannan Sadhasivam <manivannan.sadhasivam@....qualcomm.com>
> 
> Add support for handling the PCIe M.2 connectors as Power Sequencing
> devices. These connectors are exposed as the Power Sequencing devices
> as they often support multiple interfaces like PCIe/SATA, USB/UART to the
> host machine and each interfaces could be driven by different client
> drivers at the same time.

s/each interfaces/each interface/

> This driver handles the PCIe interface of these connectors. It first checks
> for the presence of the graph port in the Root Port node with the help of
> of_graph_is_present() API, if present, it acquires/poweres ON the
> corresponding pwrseq device.

s/API, if/API. If/
s/poweres/powers/

> Once the pwrseq device is powered ON, the driver will skip parsing the Root
> Port/Slot resources and registers with the pwrctrl framework.

s/and registers/and register/