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

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Message-Id: <176603796183.17581.9416209133990924154.b4-ty@kernel.org>
Date: Thu, 18 Dec 2025 11:36:01 +0530
From: Manivannan Sadhasivam <manivannan.sadhasivam@....qualcomm.com>
To: Yue Wang <yue.wang@...ogic.com>,
        Neil Armstrong <neil.armstrong@...aro.org>,
        Kevin Hilman <khilman@...libre.com>,
        Bjorn Helgaas <helgaas@...nel.org>
Cc: Jerome Brunet <jbrunet@...libre.com>,
        Martin Blumenstingl <martin.blumenstingl@...glemail.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
Subject: Re: [PATCH] PCI: meson: Remove meson_pcie_link_up() timeout,
 message, speed check


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

Best regards,
-- 
Manivannan Sadhasivam <mani@...nel.org>