Re: [PATCH v8 15/17] PCI/pwrctl: add PCI power control core code

Bjorn Helgaas
2024-06-05T17:57:59Z

On Tue, May 28, 2024 at 09:03:23PM +0200, Bartosz Golaszewski wrote:
> From: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
>
> Some PCI devices must be powered-on before they can be detected on the
> bus. Introduce a simple framework reusing the existing PCI OF
> infrastructure.
>
> The way this works is: a DT node representing a PCI device connected to
> the port can be matched against its power control platform driver. If
> the match succeeds, the driver is responsible for powering-up the device
> and calling pcie_pwrctl_device_set_ready() which will trigger a PCI bus

s/pcie_pwrctl_device_set_ready/pci_pwrctl_device_set_ready/

> rescan as well as subscribe to PCI bus notifications.
>
> When the device is detected and created, we'll make it consume the same
> DT node that the platform device did. When the device is bound, we'll
> create a device link between it and the parent power control device.