From: Tony Lindgren <tony-4v6yS6AI5VpBDgjK7y7TUQ@public.gmane.org>
To: "Rafael J. Wysocki" <rafael-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
Cc: JeffyChen <jeffy.chen-TNX95d0MmH7DzftRWevZcw@public.gmane.org>,
Linux Kernel Mailing List
<linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
Bjorn Helgaas <bhelgaas-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org>,
Linux PM <linux-pm-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
Shawn Lin <shawn.lin-TNX95d0MmH7DzftRWevZcw@public.gmane.org>,
Brian Norris
<briannorris-F7+t8E8rja9g9hUCZPvPmw@public.gmane.org>,
Doug Anderson <dianders-F7+t8E8rja9g9hUCZPvPmw@public.gmane.org>,
"devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org"
<devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
Linux PCI <linux-pci-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
Rob Herring <robh+dt-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>,
Frank Rowand
<frowand.list-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
Subject: Re: [RFC PATCH v11 4/5] PCI / PM: Add support for the PCIe WAKE# signal for OF
Date: Fri, 29 Dec 2017 09:16:39 -0800 [thread overview]
Message-ID: <20171229171639.GJ3875@atomide.com> (raw)
In-Reply-To: <CAJZ5v0hSMqwitCvfi7D+sknuO0YFr5F-kdkV-cSoVp30Cmdaeg-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
* Rafael J. Wysocki <rafael-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org> [171228 17:46]:
>
> To be precise, it is not quite possible to figure out which WAKE#
> triggered, if they are sharing the line, without looking into the
> config spaces of the devices below the switch. The switch is not
> expected to do that AFAICS. It only generates a PME message meaning
> "wakeup is being signaled somewhere below" and the PME driver that
> handles the Root Port receiving it should look at the PME Status bits
> of the devices below the switch (the pme.c driver does that IIRC or at
> least it should do that ;-)).
>
> Still, the handling of WAKE# doesn't need to cover this case AFAICS.
OK makes sense now.
Regards,
Tony
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next prev parent reply other threads:[~2017-12-29 17:16 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-12-25 11:47 [RFC PATCH v11 0/5] PCI: rockchip: Move PCIe WAKE# handling into pci core Jeffy Chen
2017-12-25 11:47 ` [RFC PATCH v11 1/5] dt-bindings: PCI: Add definition of PCIe WAKE# irq and PCI irq Jeffy Chen
2017-12-25 11:47 ` [RFC PATCH v11 2/5] of/irq: Adjust of_pci_irq parsing for multiple interrupts Jeffy Chen
2017-12-25 11:47 ` [RFC PATCH v11 4/5] PCI / PM: Add support for the PCIe WAKE# signal for OF Jeffy Chen
[not found] ` <20171225114742.18920-5-jeffy.chen-TNX95d0MmH7DzftRWevZcw@public.gmane.org>
2017-12-26 0:11 ` Rafael J. Wysocki
2017-12-26 1:06 ` JeffyChen
2017-12-27 0:57 ` Rafael J. Wysocki
2017-12-27 15:08 ` Tony Lindgren
2017-12-28 0:48 ` Rafael J. Wysocki
[not found] ` <CAJZ5v0iaHPGiZJURhqZb8wdJXHxrAEHVN=U6rNHWGf-FGemPJA-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2017-12-28 4:22 ` Tony Lindgren
[not found] ` <20171228042205.GG3875-4v6yS6AI5VpBDgjK7y7TUQ@public.gmane.org>
2017-12-28 12:18 ` Rafael J. Wysocki
[not found] ` <CAJZ5v0hpK0_vjX3HinCpsFuKffVUn3d5EnqXdz0P893aRZgnRw-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2017-12-28 16:51 ` Tony Lindgren
2017-12-28 17:29 ` Rafael J. Wysocki
2017-12-28 17:43 ` Rafael J. Wysocki
[not found] ` <CAJZ5v0hSMqwitCvfi7D+sknuO0YFr5F-kdkV-cSoVp30Cmdaeg-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2017-12-29 17:16 ` Tony Lindgren [this message]
2017-12-29 17:15 ` Tony Lindgren
2017-12-29 23:39 ` Rafael J. Wysocki
[not found] ` <CAJZ5v0icePurJoGdVtX06j=XHPdZSqXgm+vhL47ngv7OZoL3fw-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2017-12-30 0:21 ` Rafael J. Wysocki
2018-01-03 20:00 ` Tony Lindgren
[not found] ` <6120485.xubBpvge6h-yvgW3jdyMHm1GS7QM15AGw@public.gmane.org>
2018-01-03 20:08 ` Tony Lindgren
2018-01-05 0:11 ` Rafael J. Wysocki
2018-01-05 0:41 ` Brian Norris
[not found] ` <20180105004130.GA151625-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org>
2018-01-05 1:13 ` Rafael J. Wysocki
2018-01-25 1:22 ` Brian Norris
2018-01-25 16:40 ` Tony Lindgren
2018-01-25 16:54 ` Rafael J. Wysocki
[not found] ` <CAJZ5v0h7JvEFTV1mbqxtK8P0aoums2Cvjy3uU1gK4E26_rtZ5g-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2018-01-25 17:47 ` Brian Norris
2017-12-25 11:47 ` [RFC PATCH v11 5/5] arm64: dts: rockchip: Move PCIe WAKE# irq to pcie port for Gru Jeffy Chen
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