From patchwork Mon Nov 2 07:18:48 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Macpaul Lin X-Patchwork-Id: 11873073 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=-12.7 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH, MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,UNPARSEABLE_RELAY, URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham 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 5C085C00A89 for ; Mon, 2 Nov 2020 07:20:53 +0000 (UTC) Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id C70D1208A9 for ; Mon, 2 Nov 2020 07:20:52 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="jDGyW58I"; dkim=fail reason="signature verification failed" (1024-bit key) header.d=mediatek.com header.i=@mediatek.com header.b="j5/ZmuF5" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org C70D1208A9 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=mediatek.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=merlin.20170209; h=Sender:Content-Transfer-Encoding: Content-Type:Cc:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:MIME-Version:Message-ID:Date:Subject:To:From: Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From:Resent-Sender :Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References:List-Owner; bh=AFRzE0b4okn6B4aHi350RP6t7S/zNsy4BZ6vZwV5G2Y=; b=jDGyW58IDGn3THt9XXXPaCC4+y 189yUIMXMEZqBFNhPHL523fOl+2/ccNd/by828OvdC3DzssMfEcr2X/IcQGwBrOaYMLHYQDd6e50R OV8FrJ5kZNKdzmhXBMRSBYrNdw8s2xKYAUa4nIpXd098JaVUJODfKCpXcykUfSYUvYDk2zflamCIb ckvLZ1yBAT1vqfq1f3TnhVcLL0R4idtBwsw2qqtIExES12fguqdlXXwxnmgSLYnwIhmXcxJuFo7vA BelUHWuWhlI6WNtod28hTCXd52KYC66ewCu18vszdps/DS2dmcv9RzzK1oimBybXAvtsvzgYTk0P/ XpM3ckkg==; Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1kZU7W-0005kR-6u; Mon, 02 Nov 2020 07:19:14 +0000 Received: from mailgw01.mediatek.com ([216.200.240.184]) by merlin.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1kZU7R-0005jw-AS; Mon, 02 Nov 2020 07:19:11 +0000 X-UUID: 24cd0558220e4600ad10159ea18e2447-20201101 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=mediatek.com; s=dk; h=Content-Transfer-Encoding:Content-Type:MIME-Version:Message-ID:Date:Subject:CC:To:From; bh=kZvapf7pIFQLgezOg35dcW/H2iGzgefNvWKVVQEly1I=; b=j5/ZmuF50d8JHesImRH2jBA+mZd/ht5Y8U1Cez2CcM6b80bna/nyXWJ3EQF9cFMDB16i1CgQTT8hWzE5axsoNolJOBBp7YpO/sc/NpqS+cD6IUQKKnJWlqOYlodilVz8ruiOuLx1R7kIH7macdeWzKrc927Jg/s1UoaaBB6i35g=; X-UUID: 24cd0558220e4600ad10159ea18e2447-20201101 Received: from mtkcas68.mediatek.inc [(172.29.94.19)] by mailgw01.mediatek.com (envelope-from ) (musrelay.mediatek.com ESMTP with TLSv1.2 ECDHE-RSA-AES256-SHA384 256/256) with ESMTP id 17905647; Sun, 01 Nov 2020 23:19:02 -0800 Received: from mtkmbs08n1.mediatek.inc (172.21.101.55) by MTKMBS62N1.mediatek.inc (172.29.193.41) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Sun, 1 Nov 2020 23:19:00 -0800 Received: from mtkcas10.mediatek.inc (172.21.101.39) by mtkmbs08n1.mediatek.inc (172.21.101.55) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Mon, 2 Nov 2020 15:18:59 +0800 Received: from mtkswgap22.mediatek.inc (172.21.77.33) by mtkcas10.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Mon, 2 Nov 2020 15:18:59 +0800 From: Macpaul Lin To: Greg Kroah-Hartman , Rob Herring , Matthias Brugger , "Mathias Nyman" , Chunfeng Yun , , , , , Subject: [PATCH 1/2] dt-bindings: usb: mediatek,mtk-xhci: add keep-clock-on Date: Mon, 2 Nov 2020 15:18:48 +0800 Message-ID: <1604301530-31546-1-git-send-email-macpaul.lin@mediatek.com> X-Mailer: git-send-email 1.7.9.5 MIME-Version: 1.0 X-MTK: N X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20201102_021910_180486_E31CD21B X-CRM114-Status: GOOD ( 11.53 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Macpaul Lin , Eddie Hung , Ainge Hsu , Mediatek WSD Upstream , Macpaul Lin Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Option "mediatek,keep-clock-on" means to keep clock on during system suspend and resume. Some platform will flush register settings if clock has been disabled when system is suspended. Set this option to avoid clock off. Signed-off-by: Macpaul Lin --- .../devicetree/bindings/usb/mediatek,mtk-xhci.yaml | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/Documentation/devicetree/bindings/usb/mediatek,mtk-xhci.yaml b/Documentation/devicetree/bindings/usb/mediatek,mtk-xhci.yaml index ea696c8..a956dde 100644 --- a/Documentation/devicetree/bindings/usb/mediatek,mtk-xhci.yaml +++ b/Documentation/devicetree/bindings/usb/mediatek,mtk-xhci.yaml @@ -104,6 +104,12 @@ properties: description: enable USB remote wakeup, see power/wakeup-source.txt type: boolean + mediatek,keep-clock-on: + description: | + Keep clock on during system suspend and resume. Some platform will flush + register settings if clock has been disabled when system is suspended. + type: boolean + mediatek,syscon-wakeup: $ref: /schemas/types.yaml#/definitions/phandle-array maxItems: 1 @@ -175,6 +181,7 @@ examples: imod-interval-ns = <10000>; mediatek,syscon-wakeup = <&pericfg 0x400 1>; wakeup-source; + mediatek,keep-clock-on; usb3-lpm-capable; }; ...