Re: [PATCH v6 2/4] PCI/pwrctrl: Add support for handling PCIe M.2 connectors
From: Bjorn Helgaas
Date: Sat Jan 24 2026 - 16:24:10 EST
On Thu, Jan 22, 2026 at 10:46:52PM +0530, Manivannan Sadhasivam via B4 Relay wrote:
> From: Manivannan Sadhasivam <manivannan.sadhasivam@xxxxxxxxxxxxxxxx>
>
> 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/