[PATCH RESEND] PCI: mvebu: Dynamically detect if the PEX link is up to enable hot plug

[Thomas Petazzoni]

Dear Jason Gunthorpe,

On Tue,  1 Oct 2013 11:58:00 -0600, Jason Gunthorpe wrote:
> Otherwise hotplugging the PEX doesn't work at all since the driver
> detects the link state at probe time. Simply replacing the two tests
> of haslink with a register read is enough to fix it.
> 
> Tested on kirkwood with repeated plug/unplug of the link partner.
> 
> Signed-off-by: Jason Gunthorpe <jgunthorpe at obsidianresearch.com>

Acked-by: Thomas Petazzoni <thomas.petazzoni at free-electrons.com>
Tested-by: Thomas Petazzoni <thomas.petazzoni at free-electrons.com>
-- 
Thomas Petazzoni, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com