linux-kernel - Re: [PATCH v4] PCI: imx6: Add suspend/resume support for i.MX6QDL

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Message-ID: <20241104151851.GA3388469@rocinante>
Date: Tue, 5 Nov 2024 00:18:51 +0900
From: Krzysztof Wilczyński <kw@...ux.com>
To: Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>
Cc: Bjorn Helgaas <helgaas@...nel.org>,
	Stefan Eichenberger <eichest@...il.com>,
	Richard Zhu <hongxing.zhu@....com>,
	Lucas Stach <l.stach@...gutronix.de>, lpieralisi@...nel.org,
	robh@...nel.org, bhelgaas@...gle.com, shawnguo@...nel.org,
	s.hauer@...gutronix.de, kernel@...gutronix.de, festevam@...il.com,
	francesco.dolcini@...adex.com, Frank.li@....com,
	linux-pci@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	imx@...ts.linux.dev, linux-kernel@...r.kernel.org,
	Stefan Eichenberger <stefan.eichenberger@...adex.com>
Subject: Re: [PATCH v4] PCI: imx6: Add suspend/resume support for i.MX6QDL

Hello,

> > [...]
> > > > Without this patch, suspend/resume will fail on i.MX6QDL devices if a
> > > > PCIe device is connected. Upon resuming, the kernel will hang and
> > > > display an error. Here's an example of the error encountered with the
> > > > ath10k driver:
> > > > ath10k_pci 0000:01:00.0: Unable to change power state from D3hot to D0, device inaccessible
> > > > Unhandled fault: imprecise external abort (0x1406) at 0x0106f944
> > > [...]
> > > 
> > > Richard and Lucas, does this look OK to you?  Since you're listed as
> > > maintainers of pci-imx6.c, I'd like to have your ack before merging
> > > this.
> > 
> > If things look fine here, then I would like to pick it up.
> > 
> 
> LGTM, feel free to pick it up.

Sounds good!  Thank you!

	Krzysztof