From: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
To: Jason Gunthorpe <jgunthorpe@obsidianresearch.com>
Cc: linux-pci@vger.kernel.org, Jason Cooper <jason@lakedaemon.net>,
Ezequiel Garcia <ezequiel.garcia@free-electrons.com>,
Bjorn Helgaas <bhelgaas@google.com>
Subject: Re: [PATCH] PCI: mvebu: Dynamically detect if the PEX link is up to enable hot plug
Date: Tue, 17 Sep 2013 21:05:20 +0200 [thread overview]
Message-ID: <20130917210520.284b36bc@skate> (raw)
In-Reply-To: <20130917183250.GA21230@obsidianresearch.com>
Dear Jason Gunthorpe,
On Tue, 17 Sep 2013 12:32:50 -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 discovery.
>
> Signed-off-by: Jason Gunthorpe <jgunthorpe@obsidianresearch.com>
I don't have the hardware to test, but this seems to make sense to me.
Thomas
--
Thomas Petazzoni, Free Electrons
Kernel, drivers, real-time and embedded Linux
development, consulting, training and support.
http://free-electrons.com
next prev parent reply other threads:[~2013-09-17 19:05 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-09-17 18:32 [PATCH] PCI: mvebu: Dynamically detect if the PEX link is up to enable hot plug Jason Gunthorpe
2013-09-17 19:05 ` Thomas Petazzoni [this message]
2013-09-17 19:24 ` Jason Gunthorpe
2013-09-17 19:50 ` Thomas Petazzoni
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