From: Jon Hunter <jonathanh@nvidia.com>
To: Vidya Sagar <vidyas@nvidia.com>, <lorenzo.pieralisi@arm.com>,
<robh@kernel.org>, <bhelgaas@google.com>,
<thierry.reding@gmail.com>, <jingoohan1@gmail.com>,
<gustavo.pimentel@synopsys.com>
Cc: <linux-pci@vger.kernel.org>, <linux-tegra@vger.kernel.org>,
<linux-kernel@vger.kernel.org>, <kthota@nvidia.com>,
<mmaddireddy@nvidia.com>, <sagar.tv@gmail.com>
Subject: Re: [PATCH] PCI: tegra: Fix host initialization during resume
Date: Mon, 17 May 2021 15:11:00 +0100 [thread overview]
Message-ID: <7dbc7daf-5512-c938-3aee-3c1994b50d07@nvidia.com> (raw)
In-Reply-To: <fecc2899-06ef-f91f-4a39-bb4ee664c800@nvidia.com>
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 <vidyas@nvidia.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 <jonathanh@nvidia.com>
>
> 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?
Thanks!
Jon
--
nvpublic
next prev parent reply other threads:[~2021-05-17 14:13 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 [this message]
2021-05-17 16:18 ` Lorenzo Pieralisi
2021-05-17 16:47 ` Bjorn Helgaas
2021-05-17 17:41 ` Jon Hunter
2021-06-03 14:21 ` Lorenzo Pieralisi
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