Hi, Stephen,
On Mon, Jun 25, 2012 at 10:31 AM, Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx> wrote:
> Hi Bjorn,
>
> Today's linux-next merge of the pci tree got a conflict in
> drivers/pci/pci.c between commit c2fb8a3fa255 ("USB: add
> NO_D3_DURING_SLEEP flag and revert 151b61284776be2") from Linus' tree and
> commit 448bd857d48e ("PCI/PM: add PCIe runtime D3cold support") from the
> pci tree.
>
> I fixed it up (I think - see below) and can carry the fix as necessary.
> --
> Cheers,
> Stephen Rothwell sfr@xxxxxxxxxxxxxxxx
>
> diff --cc drivers/pci/pci.c
> index 77cb54a,3f8b74f..0000000
> --- a/drivers/pci/pci.c
> +++ b/drivers/pci/pci.c
> @@@ -1744,11 -1803,10 +1803,15 @@@ int pci_prepare_to_sleep(struct pci_de
> if (target_state == PCI_POWER_ERROR)
> return -EIO;
>
> + /* D3cold during system suspend/hibernate is not supported */
> + if (target_state > PCI_D3hot)
> + target_state = PCI_D3hot;
> +
> + /* Some devices mustn't be in D3 during system sleep */
> + if (target_state == PCI_D3hot &&
> + (dev->dev_flags & PCI_DEV_FLAGS_NO_D3_DURING_SLEEP))
> + return 0;
> +
> pci_enable_wake(dev, target_state, device_may_wakeup(&dev->dev));
>
> error = pci_set_power_state(dev, target_state);
I found this conflict during development too. I think the fixing is
correct. Thanks.
Best Regards,
Huang Ying
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