e1000e: Use PME poll to circumvent unreliable ACPI wake
On some I219 devices, ethernet cable plugging detection only works once from PCI D3 state. Subsequent cable plugging does set PME bit correctly, but device still doesn't get woken up. Since I219 connects to the root complex directly, it relies on platform firmware (ACPI) to wake it up. In this case, the GPE from _PRW only works for first cable plugging but fails to notify the driver for subsequent plugging events. The issue was originally found on CNP, but the same issue can be found on ADL too. So workaround the issue by continuing use PME poll after first ACPI wake. As PME poll is always used, the runtime suspend restriction for CNP can also be removed. Signed-off-by:Kai-Heng Feng <kai.heng.feng@canonical.com> Tested-by:
Naama Meir <naamax.meir@linux.intel.com> Acked-by:
Sasha Neftin <sasha.neftin@intel.com> Reviewed-by:
Simon Horman <simon.horman@corigine.com> Reviewed-by:
Leon Romanovsky <leonro@nvidia.com> Signed-off-by:
Tony Nguyen <anthony.l.nguyen@intel.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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