From patchwork Mon Mar 22 03:13:44 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Chunfeng Yun X-Patchwork-Id: 12153569 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=-16.7 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,UNPARSEABLE_RELAY,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 7F658C433E5 for ; Mon, 22 Mar 2021 03:15:07 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 63DC46192D for ; Mon, 22 Mar 2021 03:15:07 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230008AbhCVDOf (ORCPT ); Sun, 21 Mar 2021 23:14:35 -0400 Received: from mailgw02.mediatek.com ([210.61.82.184]:45040 "EHLO mailgw02.mediatek.com" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S229915AbhCVDOD (ORCPT ); Sun, 21 Mar 2021 23:14:03 -0400 X-UUID: 6f51fecbc2ee47cc91f7c74096f57d74-20210322 X-UUID: 6f51fecbc2ee47cc91f7c74096f57d74-20210322 Received: from mtkmbs10n1.mediatek.inc [(172.21.101.34)] by mailgw02.mediatek.com (envelope-from ) (Cellopoint E-mail Firewall v4.1.14 Build 0819 with TLSv1.2 ECDHE-RSA-AES256-GCM-SHA384 256/256) with ESMTP id 1130908866; Mon, 22 Mar 2021 11:13:58 +0800 Received: from mtkcas10.mediatek.inc (172.21.101.39) by mtkmbs06n2.mediatek.inc (172.21.101.130) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Mon, 22 Mar 2021 11:13:57 +0800 Received: from localhost.localdomain (10.17.3.153) by mtkcas10.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Mon, 22 Mar 2021 11:13:56 +0800 From: Chunfeng Yun To: Greg Kroah-Hartman , Rob Herring , Mathias Nyman CC: Chunfeng Yun , Matthias Brugger , , , , , , Eddie Hung , Nicolas Boichat Subject: [PATCH 05/13] usb: xhci-mtk: support quirk to disable usb2 lpm Date: Mon, 22 Mar 2021 11:13:44 +0800 Message-ID: <1616382832-28450-5-git-send-email-chunfeng.yun@mediatek.com> X-Mailer: git-send-email 1.8.1.1.dirty In-Reply-To: <1616382832-28450-1-git-send-email-chunfeng.yun@mediatek.com> References: <1616382832-28450-1-git-send-email-chunfeng.yun@mediatek.com> MIME-Version: 1.0 X-TM-SNTS-SMTP: 2CB57E9ACFCCB4B097C478130F42E0491A86FC2A697D0352FA5832B486FFF1E22000:8 X-MTK: N Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org The xHCI driver support usb2 HW LPM by default, here add support XHCI_HW_LPM_DISABLE quirk, then we can disable usb2 lpm when need it. Signed-off-by: Chunfeng Yun --- drivers/usb/host/xhci-mtk.c | 3 +++ drivers/usb/host/xhci-mtk.h | 1 + 2 files changed, 4 insertions(+) diff --git a/drivers/usb/host/xhci-mtk.c b/drivers/usb/host/xhci-mtk.c index 1b9f10048fe0..09f2ddbfe8b9 100644 --- a/drivers/usb/host/xhci-mtk.c +++ b/drivers/usb/host/xhci-mtk.c @@ -388,6 +388,8 @@ static void xhci_mtk_quirks(struct device *dev, struct xhci_hcd *xhci) xhci->quirks |= XHCI_SPURIOUS_SUCCESS; if (mtk->lpm_support) xhci->quirks |= XHCI_LPM_SUPPORT; + if (mtk->u2_lpm_disable) + xhci->quirks |= XHCI_HW_LPM_DISABLE; /* * MTK xHCI 0.96: PSA is 1 by default even if doesn't support stream, @@ -470,6 +472,7 @@ static int xhci_mtk_probe(struct platform_device *pdev) return ret; mtk->lpm_support = of_property_read_bool(node, "usb3-lpm-capable"); + mtk->u2_lpm_disable = of_property_read_bool(node, "usb2-lpm-disable"); /* optional property, ignore the error if it does not exist */ of_property_read_u32(node, "mediatek,u3p-dis-msk", &mtk->u3p_dis_msk); diff --git a/drivers/usb/host/xhci-mtk.h b/drivers/usb/host/xhci-mtk.h index 621ec1a85009..4ccd08e20a15 100644 --- a/drivers/usb/host/xhci-mtk.h +++ b/drivers/usb/host/xhci-mtk.h @@ -149,6 +149,7 @@ struct xhci_hcd_mtk { struct phy **phys; int num_phys; bool lpm_support; + bool u2_lpm_disable; /* usb remote wakeup */ bool uwk_en; struct regmap *uwk;