From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 60486C072A2 for ; Wed, 15 Nov 2023 20:52:42 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233836AbjKOUwo (ORCPT ); Wed, 15 Nov 2023 15:52:44 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53004 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233760AbjKOUwn (ORCPT ); Wed, 15 Nov 2023 15:52:43 -0500 Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 13F48B0 for ; Wed, 15 Nov 2023 12:52:40 -0800 (PST) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 88971C4E778; Wed, 15 Nov 2023 20:52:39 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1700081559; bh=djBFG7ovNwvXP8vdPStiPtGn/Yy4R3kwTQLdn7nMOC0=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=NDFDbTPcFLJQ/neKKbxCmEJZmUf6w+SKEOGY8RHlUXP0/jh9+rij7FaRnjj336/SZ lpLkCQ4we5i3sRWuQdeicCC6YWeJEOvOPKB/Df9X4R8PH5iBWTxXsbdLcaQ/+q7gAz ElAt1wwYcmbc3C1ej8vtbSTbGdu3nVsvhVT7ZFXk= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Mario Limonciello , Basavaraj Natikar , Mathias Nyman , Sasha Levin Subject: [PATCH 5.15 190/244] xhci: Loosen RPM as default policy to cover for AMD xHC 1.1 Date: Wed, 15 Nov 2023 15:36:22 -0500 Message-ID: <20231115203559.743866051@linuxfoundation.org> X-Mailer: git-send-email 2.42.1 In-Reply-To: <20231115203548.387164783@linuxfoundation.org> References: <20231115203548.387164783@linuxfoundation.org> User-Agent: quilt/0.67 X-stable: review X-Patchwork-Hint: ignore MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org 5.15-stable review patch. If anyone has any objections, please let me know. ------------------ From: Basavaraj Natikar [ Upstream commit 4baf1218150985ee3ab0a27220456a1f027ea0ac ] The AMD USB host controller (1022:43f7) isn't going into PCI D3 by default without anything connected. This is because the policy that was introduced by commit a611bf473d1f ("xhci-pci: Set runtime PM as default policy on all xHC 1.2 or later devices") only covered 1.2 or later. The 1.1 specification also has the same requirement as the 1.2 specification for D3 support. So expand the runtime PM as default policy to all AMD 1.1 devices as well. Fixes: a611bf473d1f ("xhci-pci: Set runtime PM as default policy on all xHC 1.2 or later devices") Link: https://composter.com.ua/documents/xHCI_Specification_for_USB.pdf Co-developed-by: Mario Limonciello Signed-off-by: Mario Limonciello Signed-off-by: Basavaraj Natikar Signed-off-by: Mathias Nyman Link: https://lore.kernel.org/r/20231019102924.2797346-15-mathias.nyman@linux.intel.com Signed-off-by: Greg Kroah-Hartman Signed-off-by: Sasha Levin --- drivers/usb/host/xhci-pci.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/usb/host/xhci-pci.c b/drivers/usb/host/xhci-pci.c index 29a442b621182..d0223facb92a1 100644 --- a/drivers/usb/host/xhci-pci.c +++ b/drivers/usb/host/xhci-pci.c @@ -349,6 +349,8 @@ static void xhci_pci_quirks(struct device *dev, struct xhci_hcd *xhci) /* xHC spec requires PCI devices to support D3hot and D3cold */ if (xhci->hci_version >= 0x120) xhci->quirks |= XHCI_DEFAULT_PM_RUNTIME_ALLOW; + else if (pdev->vendor == PCI_VENDOR_ID_AMD && xhci->hci_version >= 0x110) + xhci->quirks |= XHCI_DEFAULT_PM_RUNTIME_ALLOW; if (xhci->quirks & XHCI_RESET_ON_RESUME) xhci_dbg_trace(xhci, trace_xhci_dbg_quirks, -- 2.42.0