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Received: from DM4PR12MB5040.namprd12.prod.outlook.com (2603:10b6:5:38b::19) by MW4PR12MB7311.namprd12.prod.outlook.com (2603:10b6:303:227::11) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.7046.33; Mon, 4 Dec 2023 10:49:42 +0000 Received: from DM4PR12MB5040.namprd12.prod.outlook.com ([fe80::6f3c:cedb:bf1e:7504]) by DM4PR12MB5040.namprd12.prod.outlook.com ([fe80::6f3c:cedb:bf1e:7504%4]) with mapi id 15.20.7046.033; Mon, 4 Dec 2023 10:49:42 +0000 Message-ID: <070b3ce1-815c-4f3d-af09-e02cda8f9bf0@amd.com> Date: Mon, 4 Dec 2023 16:19:31 +0530 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 1/2] Revert "xhci: Enable RPM on controllers that support low-power states" To: Mathias Nyman , gregkh@linuxfoundation.org Cc: linux-usb@vger.kernel.org, linux-bluetooth@vger.kernel.org, mario.limonciello@amd.com, regressions@lists.linux.dev, regressions@leemhuis.info, Basavaraj.Natikar@amd.com, pmenzel@molgen.mpg.de, bugs-a21@moonlit-rail.com, stable@vger.kernel.org References: <3d3b8fd3-a1b9-9793-b709-eda447ebd1ab@linux.intel.com> <20231204100859.1332772-1-mathias.nyman@linux.intel.com> Content-Language: en-US From: Basavaraj Natikar In-Reply-To: <20231204100859.1332772-1-mathias.nyman@linux.intel.com> Content-Type: text/plain; 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Only [PATCH 2/2] Revert "xhci: Loosen RPM as default policy to cover for AMD xHC 1.1" alone in this series solves regression issues. > > This was not enough, regressions are still seen, so start from a clean > slate and revert both of them. > > This patch went to stable and should be reverted from there as well > > Fixes: a5d6264b638e ("xhci: Enable RPM on controllers that support low-power states") > Cc: stable@vger.kernel.org > Cc: Mario Limonciello > Cc: Basavaraj Natikar > Signed-off-by: Mathias Nyman > --- > drivers/usb/host/xhci-pci.c | 4 +--- > 1 file changed, 1 insertion(+), 3 deletions(-) > > diff --git a/drivers/usb/host/xhci-pci.c b/drivers/usb/host/xhci-pci.c > index 95ed9404f6f8..bde43cef8846 100644 > --- a/drivers/usb/host/xhci-pci.c > +++ b/drivers/usb/host/xhci-pci.c > @@ -695,9 +695,7 @@ static int xhci_pci_probe(struct pci_dev *dev, const struct pci_device_id *id) > /* USB-2 and USB-3 roothubs initialized, allow runtime pm suspend */ > pm_runtime_put_noidle(&dev->dev); > > - if (pci_choose_state(dev, PMSG_SUSPEND) == PCI_D0) > - pm_runtime_forbid(&dev->dev); > - else if (xhci->quirks & XHCI_DEFAULT_PM_RUNTIME_ALLOW) > + if (xhci->quirks & XHCI_DEFAULT_PM_RUNTIME_ALLOW) > pm_runtime_allow(&dev->dev); > > dma_set_max_seg_size(&dev->dev, UINT_MAX);