linux-kernel - Re: [PATCH v3] PCI: dw-rockchip: Add support for slot reset on link down event

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Message-ID: <f083038e43899cbe17624bf10c8d118fe92bec29.camel@wdc.com>
Date: Tue, 15 Jul 2025 03:09:40 +0000
From: Wilfred Mallawa <wilfred.mallawa@....com>
To: "david@...hera.net" <david@...hera.net>
CC: "dlemoal@...nel.org" <dlemoal@...nel.org>, "kw@...ux.com" <kw@...ux.com>,
	"alistair@...stair23.me" <alistair@...stair23.me>, "cassel@...nel.org"
	<cassel@...nel.org>, "manivannan.sadhasivam@...aro.org"
	<manivannan.sadhasivam@...aro.org>, "lpieralisi@...nel.org"
	<lpieralisi@...nel.org>, "linux-kernel@...r.kernel.org"
	<linux-kernel@...r.kernel.org>, "robh@...nel.org" <robh@...nel.org>,
	"linux-arm-kernel@...ts.infradead.org"
	<linux-arm-kernel@...ts.infradead.org>, "linux-pci@...r.kernel.org"
	<linux-pci@...r.kernel.org>, "heiko@...ech.de" <heiko@...ech.de>,
	"bhelgaas@...gle.com" <bhelgaas@...gle.com>, "p.zabel@...gutronix.de"
	<p.zabel@...gutronix.de>, "linux-rockchip@...ts.infradead.org"
	<linux-rockchip@...ts.infradead.org>
Subject: Re: [PATCH v3] PCI: dw-rockchip: Add support for slot reset on link
 down event

Hey David,

The series was dropped due to some changes that need to be added. I
believe Mani is working on it. However, you should still be able to
test things with the addition of the reset slot series [1], and the
support for the dwc-rockchip driver [2]. The reset slot code should run
on a link down, so it may help your case. Worth a try :)

[1]
https://lore.kernel.org/linux-pci/20250508-pcie-reset-slot-v4-0-7050093e2b50@linaro.org/

[2]
https://lore.kernel.org/linux-pci/20250509-b4-pci_dwc_reset_support-v3-1-37e96b4692e7@wdc.com/

Regards,
Wilfred
On Fri, 2025-07-11 at 19:48 -0300, David Bremner wrote:
> 
> What is the current status of this patch (and the pre-requisites)
> with
> respect to mainline linux?
> 
> I'm wondering if it might be relevent to the problems [1] I've been
> having with rk3588 resume, but it isn't clear to me what I need to
> apply
> to e.g. v6.16~rc1 to test it.
> 
> [1]: https://www.cs.unb.ca/~bremner/blog/posts/hibernate-pocket-4/