[PATCH v2] PCI: dwc: Make Link Up IRQ logic handle already powered on PCIe switches

Niklas Cassel cassel at kernel.org
Sun Dec 7 21:45:59 PST 2025


On Mon, Dec 01, 2025 at 07:36:35AM +0100, Niklas Cassel wrote:

Mani, could you perhaps try this series on Qcom?

I personally prefer this series over a revert because:
It allows to us to still use a PCIe endpoint that comes up after the
main system has booted, e.g. when the PCIe endpoint is a board running
pci-epf-test, without the need for a manual rescan on be bus.

If we go with revert instead, this very nice feature would be gone,
and the user would need to do a manual rescan of the bus.

One could even argue that that is a user visible regression.


Kind regards,
Niklas



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