From: Marek Vasut <marek.vasut@gmail.com>
To: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: linux-pci@vger.kernel.org,
Kazufumi Ikeda <kaz-ikeda@xc.jp.nec.com>,
Gaku Inami <gaku.inami.xw@bp.renesas.com>,
Marek Vasut <marek.vasut+renesas@gmail.com>,
Geert Uytterhoeven <geert+renesas@glider.be>,
Phil Edworthy <phil.edworthy@renesas.com>,
Simon Horman <horms+renesas@verge.net.au>,
Wolfram Sang <wsa@the-dreams.de>,
linux-renesas-soc@vger.kernel.org
Subject: Re: [PATCH V2] PCI: rcar: Add the initialization of PCIe link in resume_noirq
Date: Mon, 25 Mar 2019 20:44:00 +0100 [thread overview]
Message-ID: <179c26e7-a7ad-6cca-eae7-9f5735dd159d@gmail.com> (raw)
In-Reply-To: <20190325165439.GA19135@e107981-ln.cambridge.arm.com>
On 3/25/19 5:54 PM, Lorenzo Pieralisi wrote:
> On Sun, Feb 17, 2019 at 02:24:41PM +0100, marek.vasut@gmail.com wrote:
>> From: Kazufumi Ikeda <kaz-ikeda@xc.jp.nec.com>
>>
>> Reestablish the PCIe link very early in the resume process in case it
>> went down to prevent PCI accesses from hanging the bus. Such accesses
>> can happen early in the PCI resume process, in the resume_noirq, thus
>> the link must be reestablished in the resume_noirq callback of the
>> driver.
>>
>> Signed-off-by: Kazufumi Ikeda <kaz-ikeda@xc.jp.nec.com>
>> Signed-off-by: Gaku Inami <gaku.inami.xw@bp.renesas.com>
>> Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
>> Cc: Geert Uytterhoeven <geert+renesas@glider.be>
>> Cc: Phil Edworthy <phil.edworthy@renesas.com>
>> Cc: Simon Horman <horms+renesas@verge.net.au>
>> Cc: Wolfram Sang <wsa@the-dreams.de>
>> Cc: linux-renesas-soc@vger.kernel.org
>> ---
>> V2: - Use BIT() macro for (1 << n)
>> - Since polling in rcar_pcie_wait_for_dl() uses udelay(), do not
>> add extra changes to this function anymore
>> - Make resume_noirq return early and clean up parenthesis therein
>> ---
>> drivers/pci/controller/pcie-rcar.c | 20 ++++++++++++++++++++
>> 1 file changed, 20 insertions(+)
>
> I applied it to pci/controller-fixes but the kbot barfed at it so we
> need to rework it.
Right, PMSR definition added, updated commit message retained, patch
resubmitted as V3.
--
Best regards,
Marek Vasut
prev parent reply other threads:[~2019-03-25 19:44 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-02-17 13:24 [PATCH V2] PCI: rcar: Add the initialization of PCIe link in resume_noirq marek.vasut
2019-02-19 17:24 ` Wolfram Sang
2019-02-25 9:58 ` Simon Horman
2019-03-07 20:50 ` Bjorn Helgaas
2019-03-07 22:49 ` Marek Vasut
2019-03-08 17:17 ` Bjorn Helgaas
2019-03-08 21:35 ` Marek Vasut
2019-03-11 10:10 ` Rafael J. Wysocki
2019-03-19 16:18 ` Lorenzo Pieralisi
2019-03-22 11:31 ` Lorenzo Pieralisi
2019-03-22 12:09 ` Marek Vasut
2019-03-22 12:18 ` Lorenzo Pieralisi
2019-03-22 12:29 ` Geert Uytterhoeven
2019-03-22 12:33 ` Marek Vasut
2019-03-22 12:42 ` Geert Uytterhoeven
2019-03-22 12:49 ` Marek Vasut
2019-03-25 16:54 ` Lorenzo Pieralisi
2019-03-25 19:44 ` Marek Vasut [this message]
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