From patchwork Thu Aug 25 15:08:40 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mathias Nyman X-Patchwork-Id: 600205 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 C7D50C64990 for ; Thu, 25 Aug 2022 15:07:38 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S240377AbiHYPHh (ORCPT ); Thu, 25 Aug 2022 11:07:37 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:35562 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S238665AbiHYPHg (ORCPT ); Thu, 25 Aug 2022 11:07:36 -0400 Received: from mga06.intel.com (mga06b.intel.com [134.134.136.31]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id EE12D857FD for ; Thu, 25 Aug 2022 08:07:34 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1661440055; x=1692976055; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=cte672H7taZH7elV8fvIQi/gWfBYhev7owAtmdxxIbM=; b=WWmacEah6UnFQEZEMc9NCZmRGjs6dp56Hg6vw710YIz0HtzPyqFgVaQ7 fv92mTYWA6GHXaDev/M988yncf4ws0elA6d/5UR+0WVkc/TvNGuOU3ZRi VLeds1L12ZjWKGaRBl7uAOs146CMWwAZBHcbhbmwpfDRf2mpvq+VkWomp IKpX7rxpq2W2QuBqnIB1oa0gK/HJH7SIA8vG7p4AiNJrhuJxl3YMunKNu mr51DQCeBtkL7jV1ec6/WIRvhcN+kpmPjhx7YnwHrGzFg2JVVaSwrrpH1 H9NnoBWt82Hmc21jhrsE6F0+rh/2TcmduLLX3qoVi2YKhPcqChPzIuUH9 A==; X-IronPort-AV: E=McAfee;i="6500,9779,10450"; a="355981806" X-IronPort-AV: E=Sophos;i="5.93,263,1654585200"; d="scan'208";a="355981806" Received: from orsmga001.jf.intel.com ([10.7.209.18]) by orsmga104.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 25 Aug 2022 08:07:34 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.93,263,1654585200"; d="scan'208";a="643284840" Received: from mattu-haswell.fi.intel.com ([10.237.72.199]) by orsmga001.jf.intel.com with ESMTP; 25 Aug 2022 08:07:33 -0700 From: Mathias Nyman To: Cc: , Mathias Nyman Subject: [PATCH 3/3] Revert "xhci: turn off port power in shutdown" Date: Thu, 25 Aug 2022 18:08:40 +0300 Message-Id: <20220825150840.132216-4-mathias.nyman@linux.intel.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220825150840.132216-1-mathias.nyman@linux.intel.com> References: <20220825150840.132216-1-mathias.nyman@linux.intel.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org This reverts commit 83810f84ecf11dfc5a9414a8b762c3501b328185. Turning off port power in shutdown did cause issues such as a laptop not proprly powering off, and some specific usb devies failing to enumerate the subsequent boot after a warm reset. So revert this. Fixes: 83810f84ecf1 ("xhci: turn off port power in shutdown") Signed-off-by: Mathias Nyman --- drivers/usb/host/xhci-hub.c | 2 +- drivers/usb/host/xhci.c | 15 ++------------- drivers/usb/host/xhci.h | 2 -- 3 files changed, 3 insertions(+), 16 deletions(-) diff --git a/drivers/usb/host/xhci-hub.c b/drivers/usb/host/xhci-hub.c index b30298986a69..4619d5e89d5b 100644 --- a/drivers/usb/host/xhci-hub.c +++ b/drivers/usb/host/xhci-hub.c @@ -652,7 +652,7 @@ struct xhci_hub *xhci_get_rhub(struct usb_hcd *hcd) * It will release and re-aquire the lock while calling ACPI * method. */ -void xhci_set_port_power(struct xhci_hcd *xhci, struct usb_hcd *hcd, +static void xhci_set_port_power(struct xhci_hcd *xhci, struct usb_hcd *hcd, u16 index, bool on, unsigned long *flags) __must_hold(&xhci->lock) { diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c index 1afd32beec99..38649284ff88 100644 --- a/drivers/usb/host/xhci.c +++ b/drivers/usb/host/xhci.c @@ -793,8 +793,6 @@ static void xhci_stop(struct usb_hcd *hcd) void xhci_shutdown(struct usb_hcd *hcd) { struct xhci_hcd *xhci = hcd_to_xhci(hcd); - unsigned long flags; - int i; if (xhci->quirks & XHCI_SPURIOUS_REBOOT) usb_disable_xhci_ports(to_pci_dev(hcd->self.sysdev)); @@ -810,21 +808,12 @@ void xhci_shutdown(struct usb_hcd *hcd) del_timer_sync(&xhci->shared_hcd->rh_timer); } - spin_lock_irqsave(&xhci->lock, flags); + spin_lock_irq(&xhci->lock); xhci_halt(xhci); - - /* Power off USB2 ports*/ - for (i = 0; i < xhci->usb2_rhub.num_ports; i++) - xhci_set_port_power(xhci, xhci->main_hcd, i, false, &flags); - - /* Power off USB3 ports*/ - for (i = 0; i < xhci->usb3_rhub.num_ports; i++) - xhci_set_port_power(xhci, xhci->shared_hcd, i, false, &flags); - /* Workaround for spurious wakeups at shutdown with HSW */ if (xhci->quirks & XHCI_SPURIOUS_WAKEUP) xhci_reset(xhci, XHCI_RESET_SHORT_USEC); - spin_unlock_irqrestore(&xhci->lock, flags); + spin_unlock_irq(&xhci->lock); xhci_cleanup_msix(xhci); diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h index df6f2ebaff18..7caa0db5e826 100644 --- a/drivers/usb/host/xhci.h +++ b/drivers/usb/host/xhci.h @@ -2196,8 +2196,6 @@ int xhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue, u16 wIndex, int xhci_hub_status_data(struct usb_hcd *hcd, char *buf); int xhci_find_raw_port_number(struct usb_hcd *hcd, int port1); struct xhci_hub *xhci_get_rhub(struct usb_hcd *hcd); -void xhci_set_port_power(struct xhci_hcd *xhci, struct usb_hcd *hcd, u16 index, - bool on, unsigned long *flags); void xhci_hc_died(struct xhci_hcd *xhci);