linux-kernel - Re: [PATCH v3] nvme/pci: Add quick suspend quirk for Sc7280 Platform

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Date:   Thu, 10 Feb 2022 22:22:43 -0800
From:   Christoph Hellwig <hch@...radead.org>
To:     Nitin Rawat <quic_nitirawa@...cinc.com>
Cc:     Keith Busch <kbusch@...nel.org>, Jens Axboe <axboe@...com>,
        Sagi Grimberg <sagi@...mberg.me>,
        linux-nvme@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Shaik Sajida Bhanu <quic_c_sbhanu@...cinc.com>
Subject: Re: [PATCH v3] nvme/pci: Add quick suspend quirk for Sc7280 Platform

On Fri, Feb 11, 2022 at 02:23:28AM +0530, Nitin Rawat wrote:
> Enable quick suspend quirks for Sc7280 platform, where power
> to nvme device is removed during suspend-resume process. This
> is done to avoid the failure dring resume.

You need to sort this out in the PCI and PM layers.  The broken platform
will also affect all other PCIe drivers and not just nvme.