Re: [PATCH] PCI: qcom: Skip system suspend/resume for firmware-managed PCIe

[Manivannan Sadhasivam]

On Mon, Aug 31, 2026 at 07:07:02PM +0530, Mrinmay Sarkar wrote:
> For firmware-managed PCIe controllers, all resources, including clocks,
> regulators, resets, PHYs and link state, are owned and managed by
> firmware. The host driver must not attempt to manage these resources
> during system suspend or resume.
> 
> Skip the suspend and resume operations for firmware-managed controllers.
> The associated power domain transitions are handled independently by the
> genpd framework through its own system suspend/resume callbacks, so no
> explicit action is required by the PCIe driver.
> 

What about the D3Cold sequence like broadcasting PME_Turn_Off? Is it also
handled by the fw?

- Mani

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