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 X-Spam-Level: X-Spam-Status: No, score=-9.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id EFF15CA9ECF for ; Mon, 4 Nov 2019 05:52:28 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id C521721D7D for ; Mon, 4 Nov 2019 05:52:28 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727995AbfKDFw1 (ORCPT ); Mon, 4 Nov 2019 00:52:27 -0500 Received: from youngberry.canonical.com ([91.189.89.112]:58474 "EHLO youngberry.canonical.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726248AbfKDFw1 (ORCPT ); Mon, 4 Nov 2019 00:52:27 -0500 Received: from 61-220-137-37.hinet-ip.hinet.net ([61.220.137.37] helo=localhost) by youngberry.canonical.com with esmtpsa (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.86_2) (envelope-from ) id 1iRVHs-00032u-IX; Mon, 04 Nov 2019 05:52:25 +0000 From: Kai-Heng Feng To: mathias.nyman@intel.com, gregkh@linuxfoundation.org Cc: linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org, Kai-Heng Feng Subject: [PATCH] xhci: Increase STS_HALT timeout in xhci_suspend() Date: Mon, 4 Nov 2019 13:52:17 +0800 Message-Id: <20191104055217.10475-1-kai.heng.feng@canonical.com> X-Mailer: git-send-email 2.17.1 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org I've recently observed failed xHCI suspend attempt on AMD Raven Ridge system: kernel: xhci_hcd 0000:04:00.4: WARN: xHC CMD_RUN timeout kernel: PM: suspend_common(): xhci_pci_suspend+0x0/0xd0 returns -110 kernel: PM: pci_pm_suspend(): hcd_pci_suspend+0x0/0x30 returns -110 kernel: PM: dpm_run_callback(): pci_pm_suspend+0x0/0x150 returns -110 kernel: PM: Device 0000:04:00.4 failed to suspend async: error -110 Similar to commit ac343366846a ("xhci: Increase STS_SAVE timeout in xhci_suspend()") we also need to increase the HALT timeout to make it be able to suspend again. Fixes: f7fac17ca925 ("xhci: Convert xhci_handshake() to use readl_poll_timeout_atomic()") Signed-off-by: Kai-Heng Feng --- drivers/usb/host/xhci.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c index 6c17e3fe181a..53720c41891a 100644 --- a/drivers/usb/host/xhci.c +++ b/drivers/usb/host/xhci.c @@ -973,7 +973,7 @@ static bool xhci_pending_portevent(struct xhci_hcd *xhci) int xhci_suspend(struct xhci_hcd *xhci, bool do_wakeup) { int rc = 0; - unsigned int delay = XHCI_MAX_HALT_USEC; + unsigned int delay = XHCI_MAX_HALT_USEC * 2; struct usb_hcd *hcd = xhci_to_hcd(xhci); u32 command; u32 res; -- 2.17.1