[PATCH] PCI: dwc: Provide deinit callback for i.MX

[Mark Brown]

On Tue, Jul 04, 2023 at 08:50:15AM -0300, Fabio Estevam wrote:

> I recall seeing this regulator warning before:
> f81f095e8771 ("PCI: imx6: Allow to probe when dw_pcie_wait_for_link() fails")

> I think the real issue is why does the probe fail when the link is not up?

Well, they're both issues - if someone unloads or unbinds the driver we
can still trigger this, even if the probe succeeded.

> It should not fail to probe. At least, this was the original intention
> with Rob's commit:

> 886a9c134755 ("PCI: dwc: Move link handling into common code")

> +       return 0;
> 
>  err_remove_edma:
>         dw_pcie_edma_remove(pci);

I have no idea about doing this, all the PCI on the board that I care
about seems to work fine (and worked fine even with the failure, I'm not
sure this is being generated by a link that's in use).
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