linux-kernel - Re: rtsx_pci not restoring ASPM state after suspend/resume

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Message-ID: <e051ac790380f04be4eec6937032b7dcd411ec77.camel@ettle.org.uk>
Date:   Tue, 28 Jul 2020 21:57:55 +0100
From:   James Ettle <james@...le.org.uk>
To:     Bjorn Helgaas <helgaas@...nel.org>
Cc:     吳昊澄 Ricky 
        <ricky_wu@...ltek.com>, Rui Feng <rui_feng@...lsil.com.cn>,
        Arnd Bergmann <arnd@...db.de>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Len Brown <lenb@...nel.org>,
        Puranjay Mohan <puranjay12@...il.com>,
        "linux-pci@...r.kernel.org" <linux-pci@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Jacopo De Simoi <wilderkde@...il.com>
Subject: Re: rtsx_pci not restoring ASPM state after suspend/resume

On Mon, 2020-07-27 at 16:47 -0500, Bjorn Helgaas wrote:
> 
> I don't see anything in rtsx that enables L0s.  Can you collect the
> dmesg log when booting with "pci=earlydump"?  That will show whether
> the BIOS left it this way.  The PCI core isn't supposed to do this,
> so
> if it did, we need to fix that.
> 

dmesg log attached to the bugzilla as:

https://bugzilla.kernel.org/attachment.cgi?id=290655

(to keep everything in one place).

Thanks,
-James