On Tue, 22 Oct 2024 at 12:28, Manivannan Sadhasivam via B4 Relay
<devnull+manivannan.sadhasivam.linaro.org@xxxxxxxxxx> wrote:
>
> From: Manivannan Sadhasivam <manivannan.sadhasivam@xxxxxxxxxx>
>
> Currently, pwrctl devices are created if the corresponding PCI nodes are
> defined in devicetree. But this is not correct, because not all PCI nodes
> defined in devicetree require pwrctl support. Pwrctl comes into picture
> only when the device requires kernel to manage its power state. This can
> be determined using the power supply properties present in the devicetree
> node of the device.
>
> So add a new API, of_pci_is_supply_present() that checks the devicetree
> node if at least one power supply property is present or not. If present,
> then the pwrctl device will be created for that PCI node. Otherwise, it
> will be skipped.
>
> Cc: stable+noautosel@xxxxxxxxxx # Depends on of_platform_device_create() rework
> Fixes: 8fb18619d910 ("PCI/pwrctl: Create platform devices for child OF nodes of the port node")
> Suggested-by: Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxx>
> Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@xxxxxxxxxx>
> ---
Reviewed-by: Bartosz Golaszewski <bartosz.golaszewski@xxxxxxxxxx>
