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=-19.7 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,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 EACA9C43460 for ; Sun, 2 May 2021 14:05:25 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id D2560613C5 for ; Sun, 2 May 2021 14:05:25 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233076AbhEBOGQ (ORCPT ); Sun, 2 May 2021 10:06:16 -0400 Received: from mail.kernel.org ([198.145.29.99]:51524 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233051AbhEBOFs (ORCPT ); Sun, 2 May 2021 10:05:48 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 5424C613C6; Sun, 2 May 2021 14:04:56 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1619964297; bh=/LzrbPktzhyQ1nIou3ef3Jihzk5fClU2jPJvhIfDLUA=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=tJV1gkGSLPW7Pd4ZdxB4bBygqSn011DcELbG7byeU2TXIVvq4R16mIfyr6iIDX56e fEV2bHMlW/k6Rsvp/dBeu+dQHPdgLdchzqpaKmfv/ZN087T2MLcFglJbaRJvPxuKGJ C/xlA+WLm3bTVBS1Y6uZGsNS8AbSTp1ng7U1dQbjQncuHcpZo8iZCAD+AyMnVQdelT f8O+yM4QkCjrZ67ztkDRxlm/cdfAAaTUdxlQUKsOYIE2+3tBxoV48xWSGQysEpIXgq r3mXlIsiWXgsnWananKY5IM+v1dU4Px5tU6h4Ivzm7dAqcLK4SDaOYsl44NB8O3gpj ImUNCkGf6eHTQ== From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Chunfeng Yun , Greg Kroah-Hartman , Sasha Levin , linux-usb@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org Subject: [PATCH AUTOSEL 5.4 18/34] usb: xhci-mtk: support quirk to disable usb2 lpm Date: Sun, 2 May 2021 10:04:18 -0400 Message-Id: <20210502140434.2719553-18-sashal@kernel.org> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20210502140434.2719553-1-sashal@kernel.org> References: <20210502140434.2719553-1-sashal@kernel.org> MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org From: Chunfeng Yun [ Upstream commit bee1f89aad2a51cd3339571bc8eadbb0dc88a683 ] 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 Link: https://lore.kernel.org/r/1617181553-3503-4-git-send-email-chunfeng.yun@mediatek.com Signed-off-by: Greg Kroah-Hartman Signed-off-by: Sasha Levin --- 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 5fc3ea6d46c5..5c0eb35cd007 100644 --- a/drivers/usb/host/xhci-mtk.c +++ b/drivers/usb/host/xhci-mtk.c @@ -397,6 +397,8 @@ 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, @@ -469,6 +471,7 @@ 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 734c5513aa1b..d9f438d078da 100644 --- a/drivers/usb/host/xhci-mtk.h +++ b/drivers/usb/host/xhci-mtk.h @@ -150,6 +150,7 @@ 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; -- 2.30.2