linux-kernel - Re: [PATCH] PCI: meson: Remove meson_pcie_link

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Message-ID: <CAFBinCAPpiq=M00ZQXAB4Pu2Myjo8gpXC7DByKkGN6Z_Ahqafg@mail.gmail.com>
Date: Mon, 5 Jan 2026 17:49:00 +0100
From: Martin Blumenstingl <martin.blumenstingl@...glemail.com>
To: Manivannan Sadhasivam <manivannan.sadhasivam@....qualcomm.com>
Cc: Yue Wang <yue.wang@...ogic.com>, Neil Armstrong <neil.armstrong@...aro.org>, 
	Kevin Hilman <khilman@...libre.com>, Bjorn Helgaas <helgaas@...nel.org>, 
	Jerome Brunet <jbrunet@...libre.com>, Linnaea Lavia <linnaea-von-lavia@...e.com>, 
	FUKAUMI Naoki <naoki@...xa.com>, 
	Krishna Chaitanya Chundru <krishna.chundru@....qualcomm.com>, linux-amlogic@...ts.infradead.org, 
	linux-arm-kernel@...ts.infradead.org, linux-pci@...r.kernel.org, 
	linux-kernel@...r.kernel.org, Bjorn Helgaas <bhelgaas@...gle.com>, stable@...r.kernel.org, 
	Ricardo Pardini <ricardo@...dini.net>
Subject: Re: [PATCH] PCI: meson: Remove meson_pcie_link_up() timeout, message,
 speed check

Hi Mani,

On Thu, Dec 18, 2025 at 7:06 AM Manivannan Sadhasivam
<manivannan.sadhasivam@....qualcomm.com> wrote:
>
>
> On Mon, 03 Nov 2025 16:19:26 -0600, Bjorn Helgaas wrote:
> > Previously meson_pcie_link_up() only returned true if the link was in the
> > L0 state.  This was incorrect because hardware autonomously manages
> > transitions between L0, L0s, and L1 while both components on the link stay
> > in D0.  Those states should all be treated as "link is active".
> >
> > Returning false when the device was in L0s or L1 broke config accesses
> > because dw_pcie_other_conf_map_bus() fails if the link is down, which
> > caused errors like this:
> >
> > [...]
>
> Applied, thanks!
>
> [1/1] PCI: meson: Remove meson_pcie_link_up() timeout, message, speed check
>       commit: 11647fc772e977c981259a63c4a2b7e2c312ea22
My understanding is that this is queued for -next.
Ricardo (Cc'ed) reported that this patch fixes PCI link up on his Odroid-HC4.
Is there a chance to get this patch into -fixes, so it can be pulled
by Linus for one of the next -rc?


Best regards,
Martin