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

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Message-ID: <bc71f7fb38c1cf2e3faa6d191d61d40121c4ea22.camel@wdc.com>
Date: Tue, 15 Jul 2025 22:53:57 +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>,
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	<linux-rockchip@...ts.infradead.org>
Subject: Re: [PATCH v3] PCI: dw-rockchip: Add support for slot reset on link
 down event

Hey David,

Quick follow up, there's a new series from Mani now [1]. Which should
have all the patches you need to test the reset slot functionality.

Cheers,
Wilfred

[1]
https://lore.kernel.org/linux-pci/20250715-pci-port-reset-v6-0-6f9cce94e7bb@oss.qualcomm.com/

On Tue, 2025-07-15 at 13:09 +1000, Wilfred Mallawa wrote:
> 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/