Message ID | AM3PR04MB306CF3A71C1A9ED0A2427BF80D60@AM3PR04MB306.eurprd04.prod.outlook.com (mailing list archive) |
---|---|
State | New, archived |
Headers | show
Return-Path: <linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org> Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 767356035F for <patchwork-linux-arm@patchwork.kernel.org>; Mon, 3 Jul 2017 03:47:24 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 5E2E326212 for <patchwork-linux-arm@patchwork.kernel.org>; Mon, 3 Jul 2017 03:47:24 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 51CCB2851A; Mon, 3 Jul 2017 03:47:24 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-1.9 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID autolearn=ham version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [65.50.211.133]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 4E89826212 for <patchwork-linux-arm@patchwork.kernel.org>; Mon, 3 Jul 2017 03:47:22 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:In-Reply-To:References: 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: List-Owner; bh=C6Pgk2+HjrTzdOQF2peRJeH2dgAns8irqL2ivwCzBK4=; b=kzZnDod74sFc0N Y6/AWM0guyN2Ub6txv/hJWGI15mt2+yG8eEg6DzMnLozrFYzGRBmfQvsnzG4mseXfF0WY/St747pG etEhZSFzwnUn4OJ5y6fFjBesSf77uXAeARmH1f5abH9gLHzrK/wbDbeV8PbGLPjqJ8P6vhUGvcnNR 8P9+H5Efq0vfKOngNbNdiBjvMffCeb6sVxP194HuZY3PdidFydRcDYhPkNUmf4sC+ZcROshR259ai E72ldmQeU/45vKXoUp0TOyDAzRLyHT+uN5xINmMx9PDz9p0Uo/mWml7W5bFhzm9xW5DXkXi26zxqQ +PkhCGpknXW/ht2k2jZQ==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.87 #1 (Red Hat Linux)) id 1dRsKU-0000bF-Q5; Mon, 03 Jul 2017 03:47:18 +0000 Received: from mail-he1eur01on0060.outbound.protection.outlook.com ([104.47.0.60] helo=EUR01-HE1-obe.outbound.protection.outlook.com) by bombadil.infradead.org with esmtps (Exim 4.87 #1 (Red Hat Linux)) id 1dRsKQ-0000Xy-4d for linux-arm-kernel@lists.infradead.org; Mon, 03 Jul 2017 03:47:16 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=nxp.com; s=selector1; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version; bh=VVE5aY4EZDTjZFlor2O0xrhowA2PEvh3xdie2Tdz9ss=; b=ELdH7guA7OM5OeqZEZRM74H9oA2mPiZuMVcdKjJA/eR0rCCyy7DfgHFWV1YnkE3CltpMg1Zw85429/LwRv3lFobb0gpnkBKAnmsLMJQbsCoC0fgPKIjPpM5IkdXHxDWUeuuKtJEtZrDynBZEUBYvHlqs6fQ3c6xCOfSSiPpQZmk= Received: from AM3PR04MB306.eurprd04.prod.outlook.com (10.242.113.144) by AM3PR04MB1316.eurprd04.prod.outlook.com (10.163.7.139) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1220.11; Mon, 3 Jul 2017 03:46:47 +0000 Received: from AM3PR04MB306.eurprd04.prod.outlook.com ([fe80::909a:ba48:a49c:c57b]) by AM3PR04MB306.eurprd04.prod.outlook.com ([fe80::909a:ba48:a49c:c57b%13]) with mapi id 15.01.1220.015; Mon, 3 Jul 2017 03:46:47 +0000 From: "A.s. Dong" <aisheng.dong@nxp.com> To: Stephen Boyd <sboyd@codeaurora.org>, Dong Aisheng <dongas86@gmail.com> Subject: RE: [PATCH 1/9] clk: clk-divider: add CLK_DIVIDER_ZERO_GATE clk support Thread-Topic: [PATCH 1/9] clk: clk-divider: add CLK_DIVIDER_ZERO_GATE clk support Thread-Index: AQHSzYN3F+RbVHbrJkqp4dYX0fhP6KItMq8AgAB7yYCAEMAHAIADTWEA Date: Mon, 3 Jul 2017 03:46:47 +0000 Message-ID: <AM3PR04MB306CF3A71C1A9ED0A2427BF80D60@AM3PR04MB306.eurprd04.prod.outlook.com> References: <1494856763-6543-1-git-send-email-aisheng.dong@nxp.com> <1494856763-6543-2-git-send-email-aisheng.dong@nxp.com> <20170620014512.GL4493@codeaurora.org> <20170620090815.GA6805@b29396-OptiPlex-7040> <20170701005542.GT22780@codeaurora.org> In-Reply-To: <20170701005542.GT22780@codeaurora.org> Accept-Language: zh-CN, en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: authentication-results: codeaurora.org; dkim=none (message not signed) header.d=none; codeaurora.org; dmarc=none action=none header.from=nxp.com; x-originating-ip: [199.59.231.64] x-ms-publictraffictype: Email x-microsoft-exchange-diagnostics: 1; AM3PR04MB1316; 7: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 x-forefront-antispam-report: SFV:SKI; SCL:-1SFV:NSPM; SFS:(10009020)(6009001)(39860400002)(39840400002)(39450400003)(39850400002)(39410400002)(39400400002)(377454003)(13464003)(24454002)(3660700001)(3280700002)(14454004)(50986999)(5250100002)(54356999)(93886004)(76176999)(86362001)(478600001)(2906002)(6506006)(8936002)(2900100001)(39060400002)(6436002)(229853002)(2950100002)(38730400002)(55016002)(99286003)(6246003)(25786009)(9686003)(54906002)(189998001)(7736002)(4326008)(106356001)(6116002)(102836003)(74316002)(305945005)(3846002)(33656002)(53936002)(81166006)(8676002)(7696004)(5660300001)(53546010)(66066001); DIR:OUT; SFP:1101; SCL:1; SRVR:AM3PR04MB1316; H:AM3PR04MB306.eurprd04.prod.outlook.com; FPR:; SPF:None; MLV:ovrnspm; PTR:InfoNoRecords; LANG:en; x-ms-office365-filtering-correlation-id: 016d3db5-6943-4f6d-5aeb-08d4c1c62145 x-ms-office365-filtering-ht: Tenant x-microsoft-antispam: UriScan:; BCL:0; PCL:0; RULEID:(300000500095)(300135000095)(300000501095)(300135300095)(22001)(300000502095)(300135100095)(2017030254075)(48565401081)(300000503095)(300135400095)(2017052603031)(201703131423075)(201703031133081)(300000504095)(300135200095)(300000505095)(300135600095)(300000506095)(300135500095); SRVR:AM3PR04MB1316; x-ms-traffictypediagnostic: AM3PR04MB1316: x-microsoft-antispam-prvs: <AM3PR04MB131602A3D1E0A4AD6D52833F80D60@AM3PR04MB1316.eurprd04.prod.outlook.com> x-exchange-antispam-report-test: UriScan:(133145235818549)(236129657087228)(9452136761055)(258649278758335)(247924648384137); x-exchange-antispam-report-cfa-test: BCL:0; PCL:0; RULEID:(100000700101)(100105000095)(100000701101)(100105300095)(100000702101)(100105100095)(6040450)(601004)(2401047)(5005006)(8121501046)(93006095)(93001095)(3002001)(10201501046)(100000703101)(100105400095)(6055026)(6041248)(20161123564025)(20161123555025)(20161123558100)(20161123562025)(20161123560025)(201703131423075)(201702281528075)(201703061421075)(201703061406153)(6072148)(100000704101)(100105200095)(100000705101)(100105500095); SRVR:AM3PR04MB1316; BCL:0; PCL:0; RULEID:(100000800101)(100110000095)(100000801101)(100110300095)(100000802101)(100110100095)(100000803101)(100110400095)(100000804101)(100110200095)(100000805101)(100110500095); SRVR:AM3PR04MB1316; x-forefront-prvs: 035748864E spamdiagnosticoutput: 1:99 spamdiagnosticmetadata: NSPM MIME-Version: 1.0 X-OriginatorOrg: nxp.com X-MS-Exchange-CrossTenant-originalarrivaltime: 03 Jul 2017 03:46:47.0420 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 686ea1d3-bc2b-4c6f-a92c-d99c5c301635 X-MS-Exchange-Transport-CrossTenantHeadersStamped: AM3PR04MB1316 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20170702_204714_602673_24E4EDAB X-CRM114-Status: GOOD ( 31.26 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: <linux-arm-kernel.lists.infradead.org> List-Unsubscribe: <http://lists.infradead.org/mailman/options/linux-arm-kernel>, <mailto:linux-arm-kernel-request@lists.infradead.org?subject=unsubscribe> List-Archive: <http://lists.infradead.org/pipermail/linux-arm-kernel/> List-Post: <mailto:linux-arm-kernel@lists.infradead.org> List-Help: <mailto:linux-arm-kernel-request@lists.infradead.org?subject=help> List-Subscribe: <http://lists.infradead.org/mailman/listinfo/linux-arm-kernel>, <mailto:linux-arm-kernel-request@lists.infradead.org?subject=subscribe> Cc: Jacky Bai <ping.bai@nxp.com>, Anson Huang <anson.huang@nxp.com>, "mturquette@baylibre.com" <mturquette@baylibre.com>, "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>, "shawnguo@kernel.org" <shawnguo@kernel.org>, "linux-clk@vger.kernel.org" <linux-clk@vger.kernel.org>, "linux-arm-kernel@lists.infradead.org" <linux-arm-kernel@lists.infradead.org> Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" <linux-arm-kernel-bounces@lists.infradead.org> Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP |
diff --git a/drivers/clk/clk-divider.c b/drivers/clk/clk-divider.c index f78ba7a..7364ac4 100644 --- a/drivers/clk/clk-divider.c +++ b/drivers/clk/clk-divider.c @@ -125,8 +125,9 @@ unsigned long divider_recalc_rate(struct clk_hw *hw, unsigned long parent_rate, div = _get_div(table, val, flags, divider->width); if (!div) { + if ((flags & CLK_DIVIDER_ZERO_GATE) && clk_hw_is_enabled(hw)) + return divider->cached_rate; + WARN(!(flags & CLK_DIVIDER_ALLOW_ZERO), "%s: Zero divisor and CLK_DIVIDER_ALLOW_ZERO not set\n", clk_hw_get_name(hw)); And for the initial disabled state (div = 0), the calc_rate will still return