From: Bjorn Helgaas <helgaas@kernel.org>
To: manivannan.sadhasivam@oss.qualcomm.com
Cc: Bjorn Helgaas <bhelgaas@google.com>,
Manivannan Sadhasivam <mani@kernel.org>,
Rob Herring <robh@kernel.org>,
Krzysztof Kozlowski <krzk+dt@kernel.org>,
Conor Dooley <conor+dt@kernel.org>,
Bartosz Golaszewski <brgl@bgdev.pl>,
Damien Le Moal <dlemoal@kernel.org>,
Niklas Cassel <cassel@kernel.org>,
Linus Walleij <linus.walleij@linaro.org>,
Bartosz Golaszewski <brgl@kernel.org>,
linux-kernel@vger.kernel.org, linux-pci@vger.kernel.org,
devicetree@vger.kernel.org, linux-arm-msm@vger.kernel.org,
Stephan Gerhold <stephan.gerhold@linaro.org>,
Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>,
linux-pm@vger.kernel.org, linux-ide@vger.kernel.org,
Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Subject: Re: [PATCH v6 2/4] PCI/pwrctrl: Add support for handling PCIe M.2 connectors
Date: Sat, 24 Jan 2026 15:24:01 -0600 [thread overview]
Message-ID: <20260124212401.GA181386@bhelgaas> (raw)
In-Reply-To: <20260122-pci-m2-v6-2-575da9f97239@oss.qualcomm.com>
On Thu, Jan 22, 2026 at 10:46:52PM +0530, Manivannan Sadhasivam via B4 Relay wrote:
> From: Manivannan Sadhasivam <manivannan.sadhasivam@oss.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/
next prev parent reply other threads:[~2026-01-24 21:24 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-01-22 17:16 [PATCH v6 0/4] PCI: Add initial support for handling PCIe M.2 connectors in devicetree Manivannan Sadhasivam via B4 Relay
2026-01-22 17:16 ` [PATCH v6 1/4] dt-bindings: connector: Add PCIe M.2 Mechanical Key M connector Manivannan Sadhasivam via B4 Relay
2026-01-22 23:28 ` Rob Herring (Arm)
2026-01-22 17:16 ` [PATCH v6 2/4] PCI/pwrctrl: Add support for handling PCIe M.2 connectors Manivannan Sadhasivam via B4 Relay
2026-01-24 21:24 ` Bjorn Helgaas [this message]
2026-01-22 17:16 ` [PATCH v6 3/4] PCI/pwrctrl: Create pwrctrl device if the graph port is found Manivannan Sadhasivam via B4 Relay
2026-01-22 17:16 ` [PATCH v6 4/4] power: sequencing: Add the Power Sequencing driver for the PCIe M.2 connectors Manivannan Sadhasivam via B4 Relay
2026-01-23 9:31 ` (subset) [PATCH v6 0/4] PCI: Add initial support for handling PCIe M.2 connectors in devicetree Bartosz Golaszewski
2026-01-24 21:07 ` Bjorn Helgaas
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