From patchwork Mon May 17 14:02:47 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg Kroah-Hartman X-Patchwork-Id: 440569 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=-19.1 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER, INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED, USER_AGENT_GIT autolearn=unavailable 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 71A84C433ED for ; Mon, 17 May 2021 15:46:33 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 5AB5860FEF for ; Mon, 17 May 2021 15:46:33 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235762AbhEQPrr (ORCPT ); Mon, 17 May 2021 11:47:47 -0400 Received: from mail.kernel.org ([198.145.29.99]:36780 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1344818AbhEQPpm (ORCPT ); Mon, 17 May 2021 11:45:42 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id ABA4B613B9; Mon, 17 May 2021 14:43:57 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1621262638; bh=M8RgQpG2b4ai5zpHDappdZ5NZAFlHdCK45JXNfJIUtw=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=tq3OfvC/bkt6KoChSvez5TUSprKUZzBCgcjP8c9vhanjAdjSN+2FaiHTVrSFnIhj9 Ll37ka9RSaH7yWlxRIsn8B9ad9OO6bKe6vpscN+FxDgnUlpMurekdfbcPyS0SX96Wo kOIFQwqU9QIV5ewVNEnnhAZ2O0N68wQra723vV9A= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Maximilian Luz , Mathias Nyman Subject: [PATCH 5.10 242/289] usb: xhci: Increase timeout for HC halt Date: Mon, 17 May 2021 16:02:47 +0200 Message-Id: <20210517140313.306092975@linuxfoundation.org> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20210517140305.140529752@linuxfoundation.org> References: <20210517140305.140529752@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Maximilian Luz commit ca09b1bea63ab83f4cca3a2ae8bc4f597ec28851 upstream. On some devices (specifically the SC8180x based Surface Pro X with QCOM04A6) HC halt / xhci_halt() times out during boot. Manually binding the xhci-hcd driver at some point later does not exhibit this behavior. To work around this, double XHCI_MAX_HALT_USEC, which also resolves this issue. Cc: Signed-off-by: Maximilian Luz Signed-off-by: Mathias Nyman Link: https://lore.kernel.org/r/20210512080816.866037-5-mathias.nyman@linux.intel.com Signed-off-by: Greg Kroah-Hartman --- drivers/usb/host/xhci-ext-caps.h | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) --- a/drivers/usb/host/xhci-ext-caps.h +++ b/drivers/usb/host/xhci-ext-caps.h @@ -7,8 +7,9 @@ * Author: Sarah Sharp * Some code borrowed from the Linux EHCI driver. */ -/* Up to 16 ms to halt an HC */ -#define XHCI_MAX_HALT_USEC (16*1000) + +/* HC should halt within 16 ms, but use 32 ms as some hosts take longer */ +#define XHCI_MAX_HALT_USEC (32 * 1000) /* HC not running - set to 1 when run/stop bit is cleared. */ #define XHCI_STS_HALT (1<<0)