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

Bartosz Golaszewski
2024-06-05T18:05:18Z

On Wed, Jun 5, 2024 at 7:58 PM Bjorn Helgaas <helgaas@kernel.org> wrote:
>
> 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/
>

Ah that's a leftover from when it was PCIe specific. Thanks.

Bart

> > 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.