From patchwork Wed Feb 16 06:59:13 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Linyu Yuan X-Patchwork-Id: 12748014 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 E23C6C433F5 for ; Wed, 16 Feb 2022 07:09:09 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229563AbiBPHJU (ORCPT ); Wed, 16 Feb 2022 02:09:20 -0500 Received: from gmail-smtp-in.l.google.com ([23.128.96.19]:45450 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229463AbiBPHJT (ORCPT ); Wed, 16 Feb 2022 02:09:19 -0500 Received: from alexa-out.qualcomm.com (alexa-out.qualcomm.com [129.46.98.28]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 2741F140B0 for ; Tue, 15 Feb 2022 23:08:49 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=quicinc.com; i=@quicinc.com; q=dns/txt; s=qcdkim; t=1644995329; x=1676531329; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=1V+StDcIv360i0ePbLQdHffbkZPNky93+P6CKeGfQ/Q=; b=XSj8Q05gw8GkUNqcimxVAUenzCTxWAGWeqbMXm03PjmjrXAkYb7Q4fai c/Hi8t54aA/3N5lFQ/MIlZmVayIt12v0ink61cWXwIZo6hwmzGAamaMjl M/ubCWr1Lk5q+Cny/sz+eYzCgMVvj4m74GDJB0TLnh42TTWxVP/hZuz2B k=; Received: from ironmsg09-lv.qualcomm.com ([10.47.202.153]) by alexa-out.qualcomm.com with ESMTP; 15 Feb 2022 22:59:35 -0800 X-QCInternal: smtphost Received: from nasanex01c.na.qualcomm.com ([10.47.97.222]) by ironmsg09-lv.qualcomm.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 15 Feb 2022 22:59:34 -0800 Received: from nalasex01b.na.qualcomm.com (10.47.209.197) by nasanex01c.na.qualcomm.com (10.47.97.222) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.986.15; Tue, 15 Feb 2022 22:59:34 -0800 Received: from linyyuan-gv.qualcomm.com (10.80.80.8) by nalasex01b.na.qualcomm.com (10.47.209.197) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.922.19; Tue, 15 Feb 2022 22:59:32 -0800 From: Linyu Yuan To: Mathias Nyman , Greg Kroah-Hartman CC: , Jack Pham , "Linyu Yuan" Subject: [PATCH 3/5] usb: host: xhci: update hci_version operation in xhci_gen_setup() Date: Wed, 16 Feb 2022 14:59:13 +0800 Message-ID: <1644994755-12975-4-git-send-email-quic_linyyuan@quicinc.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1644994755-12975-1-git-send-email-quic_linyyuan@quicinc.com> References: <1644994755-12975-1-git-send-email-quic_linyyuan@quicinc.com> MIME-Version: 1.0 X-Originating-IP: [10.80.80.8] X-ClientProxiedBy: nasanex01b.na.qualcomm.com (10.46.141.250) To nalasex01b.na.qualcomm.com (10.47.209.197) Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org There is no need to store temperary value in hcc_params. Signed-off-by: Linyu Yuan --- drivers/usb/host/xhci.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c index dc357ca..857a9c6 100644 --- a/drivers/usb/host/xhci.c +++ b/drivers/usb/host/xhci.c @@ -5280,8 +5280,7 @@ int xhci_gen_setup(struct usb_hcd *hcd, xhci_get_quirks_t get_quirks) xhci->hcs_params1 = readl(&xhci->cap_regs->hcs_params1); xhci->hcs_params2 = readl(&xhci->cap_regs->hcs_params2); xhci->hcs_params3 = readl(&xhci->cap_regs->hcs_params3); - xhci->hcc_params = readl(&xhci->cap_regs->hc_capbase); - xhci->hci_version = HC_VERSION(xhci->hcc_params); + xhci->hci_version = HC_VERSION(readl(&xhci->cap_regs->hc_capbase)); xhci->hcc_params = readl(&xhci->cap_regs->hcc_params); if (xhci->hci_version > 0x100) xhci->hcc_params2 = readl(&xhci->cap_regs->hcc_params2);