From: Jon Hunter <email@example.com>
To: Bjorn Helgaas <firstname.lastname@example.org>,
Lorenzo Pieralisi <email@example.com>
Cc: Vidya Sagar <firstname.lastname@example.org>, <email@example.com>,
Subject: Re: [PATCH] PCI: tegra: Fix host initialization during resume
Date: Mon, 17 May 2021 18:41:53 +0100 [thread overview]
Message-ID: <firstname.lastname@example.org> (raw)
On 17/05/2021 17:47, Bjorn Helgaas wrote:
> On Mon, May 17, 2021 at 05:18:36PM +0100, Lorenzo Pieralisi wrote:
>> On Mon, May 17, 2021 at 03:11:00PM +0100, Jon Hunter wrote:
>>> Hi Lorenzo, Bjorn,
>>> On 06/05/2021 09:49, Jon Hunter wrote:
>>>> On 04/05/2021 18:21, Vidya Sagar wrote:
>>>>> Commit 275e88b06a27 ("PCI: tegra: Fix host link initialization") broke
>>>>> host initialization during resume as it misses out calling the API
>>>>> dw_pcie_setup_rc() which is required for host and MSI initialization.
>>>>> Fixes: 275e88b06a27 ("PCI: tegra: Fix host link initialization")
>>>>> Signed-off-by: Vidya Sagar <email@example.com>
>>>>> drivers/pci/controller/dwc/pcie-tegra194.c | 2 ++
>>>>> 1 file changed, 2 insertions(+)
>>>>> diff --git a/drivers/pci/controller/dwc/pcie-tegra194.c b/drivers/pci/controller/dwc/pcie-tegra194.c
>>>>> index 6fa216e52d14..4c3c0738f2e6 100644
>>>>> --- a/drivers/pci/controller/dwc/pcie-tegra194.c
>>>>> +++ b/drivers/pci/controller/dwc/pcie-tegra194.c
>>>>> @@ -2214,6 +2214,8 @@ static int tegra_pcie_dw_resume_noirq(struct device *dev)
>>>>> goto fail_host_init;
>>>>> + dw_pcie_setup_rc(&pcie->pci.pp);
>>>>> ret = tegra_pcie_dw_start_link(&pcie->pci);
>>>>> if (ret < 0)
>>>>> goto fail_host_init;
>>>> Thanks for fixing!
>>>> Tested-by: Jon Hunter <firstname.lastname@example.org>
>>>> We should also mark this for stable so that this gets back-ported.
>>> Can we queue this as a fix for v5.13 and tag for stable?
>> We usually send fixes for -rc* when the patches they are fixing
>> were merged in the current cycle (ie merged for v5.13).
> Looks like this has been broken since v5.11-rc1 (December 27, 2020),
> when 275e88b06a27 was merged. Probably would be worth an occasional
> boot test to make sure things stay working.
Yes exactly it has been broken for a while and unfortunately went unnoticed.
We do boot test -next, mainline and the various stable branches on our
Tegra boards daily. The boot test did not catch this, but there is a
error generated when resuming from suspend and I am working to ensure we
catch such errors when resuming from suspend.
next prev parent reply other threads:[~2021-05-17 17:42 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-05-04 17:21 [PATCH] PCI: tegra: Fix host initialization during resume Vidya Sagar
2021-05-06 8:49 ` Jon Hunter
2021-05-17 14:11 ` Jon Hunter
2021-05-17 16:18 ` Lorenzo Pieralisi
2021-05-17 16:47 ` Bjorn Helgaas
2021-05-17 17:41 ` Jon Hunter [this message]
2021-06-03 14:21 ` Lorenzo Pieralisi
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.