From patchwork Thu Feb 14 10:40:42 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Gabriel FERNANDEZ X-Patchwork-Id: 10812385 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 069F113A4 for ; Thu, 14 Feb 2019 10:42:02 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id E87842D693 for ; Thu, 14 Feb 2019 10:42:01 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id DCE272D696; Thu, 14 Feb 2019 10:42:01 +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=-5.2 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,MAILING_LIST_MULTI,RCVD_IN_DNSWL_MED autolearn=ham version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 8083C2D693 for ; Thu, 14 Feb 2019 10:42:01 +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:References:In-Reply-To: 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=i32TzHNCwUWgZ+TY75O+RbUySDZMyA6RVo4nGZn/eUA=; b=dEfOYBXjMXw3aZ YoVuwdGaAiNyZLzK5v7elSpQKdcLRRgzMnHu8AyaVNYOVZCtRBm7hrRdEKAcIBwWOV3jCx4r5l8ry ey92jCvzI0PrDsbmblhiSACDr7MGCT2DCkomjJQk2ZRqka6KeWXwJTaDHLwop5sX17A1iEfERVL0N UiB/WU7ROAWizpKNbyODyraJoD+q33heRc+Rd8FANV4Hx6r1b2/9htWGbr5zr4vNUrEW8Fs+E/mBJ ArThvzK8ZRblW/nJ3VGYWgpN2zIqYV1fWHikaC2XdcUny6DcWZNIIwnw7zXfSB0Yj8fIgcThFp5rW S5GC738dehGsievU46vw==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1guESu-0003Aw-8G; Thu, 14 Feb 2019 10:42:00 +0000 Received: from mx08-00178001.pphosted.com ([91.207.212.93] helo=mx07-00178001.pphosted.com) by bombadil.infradead.org with esmtps (Exim 4.90_1 #2 (Red Hat Linux)) id 1guERu-00028d-Hn for linux-arm-kernel@lists.infradead.org; Thu, 14 Feb 2019 10:41:03 +0000 Received: from pps.filterd (m0046661.ppops.net [127.0.0.1]) by mx08-00178001.pphosted.com (8.16.0.27/8.16.0.27) with SMTP id x1EAa01t026777; Thu, 14 Feb 2019 11:40:52 +0100 Received: from beta.dmz-eu.st.com (beta.dmz-eu.st.com [164.129.1.35]) by mx08-00178001.pphosted.com with ESMTP id 2qmwsujrjf-1 (version=TLSv1 cipher=ECDHE-RSA-AES256-SHA bits=256 verify=NOT); Thu, 14 Feb 2019 11:40:52 +0100 Received: from zeta.dmz-eu.st.com (zeta.dmz-eu.st.com [164.129.230.9]) by beta.dmz-eu.st.com (STMicroelectronics) with ESMTP id F0CFB38; Thu, 14 Feb 2019 10:40:51 +0000 (GMT) Received: from Webmail-eu.st.com (sfhdag4node2.st.com [10.75.127.11]) by zeta.dmz-eu.st.com (STMicroelectronics) with ESMTP id CFF174EB0; Thu, 14 Feb 2019 10:40:51 +0000 (GMT) Received: from localhost (10.75.127.44) by SFHDAG4NODE2.st.com (10.75.127.11) with Microsoft SMTP Server (TLS) id 15.0.1347.2; Thu, 14 Feb 2019 11:40:51 +0100 From: To: Michael Turquette , Stephen Boyd , Maxime Coquelin , Alexandre Torgue Subject: [PATCH v2 2/7] clk: stm32mp1: add CLK_SET_RATE_NO_REPARENT to Kernel clocks Date: Thu, 14 Feb 2019 11:40:42 +0100 Message-ID: <20190214104047.1173-3-gabriel.fernandez@st.com> X-Mailer: git-send-email 2.17.0 In-Reply-To: <20190214104047.1173-1-gabriel.fernandez@st.com> References: <20190214104047.1173-1-gabriel.fernandez@st.com> MIME-Version: 1.0 X-Originating-IP: [10.75.127.44] X-ClientProxiedBy: SFHDAG3NODE1.st.com (10.75.127.7) To SFHDAG4NODE2.st.com (10.75.127.11) X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:, , definitions=2019-02-14_07:, , signatures=0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190214_024058_882759_5AF1C483 X-CRM114-Status: GOOD ( 10.47 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Gabriel Fernandez , linux-kernel@vger.kernel.org, linux-clk@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-stm32@st-md-mailman.stormreply.com Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP From: Gabriel Fernandez STM32MP1 clock IP offers lots of Kernel clocks that are shared by multiple IP's at the same time. Then boot loader applies a clock tree that allows to use all IP's at same time and with the maximum of performance. Not change parents on a change rate on kernel clocks ensures the integrity of the system. Signed-off-by: Gabriel Fernandez --- drivers/clk/clk-stm32mp1.c | 12 +++++++----- 1 file changed, 7 insertions(+), 5 deletions(-) diff --git a/drivers/clk/clk-stm32mp1.c b/drivers/clk/clk-stm32mp1.c index be2ed35977ca..e72079de83f4 100644 --- a/drivers/clk/clk-stm32mp1.c +++ b/drivers/clk/clk-stm32mp1.c @@ -1286,10 +1286,11 @@ _clk_stm32_register_composite(struct device *dev, MGATE_MP1(_id, _name, _parent, _flags, _mgate) #define KCLK(_id, _name, _parents, _flags, _mgate, _mmux)\ - COMPOSITE(_id, _name, _parents, CLK_OPS_PARENT_ENABLE | _flags,\ - _MGATE_MP1(_mgate),\ - _MMUX(_mmux),\ - _NO_DIV) + COMPOSITE(_id, _name, _parents, CLK_OPS_PARENT_ENABLE |\ + CLK_SET_RATE_NO_REPARENT | _flags,\ + _MGATE_MP1(_mgate),\ + _MMUX(_mmux),\ + _NO_DIV) enum { G_SAI1, @@ -1952,7 +1953,8 @@ static const struct clock_config stm32mp1_clock_cfg[] = { MGATE_MP1(GPU_K, "gpu_k", "pll2_q", 0, G_GPU), MGATE_MP1(DAC12_K, "dac12_k", "ck_lsi", 0, G_DAC12), - COMPOSITE(ETHPTP_K, "ethptp_k", eth_src, CLK_OPS_PARENT_ENABLE, + COMPOSITE(ETHPTP_K, "ethptp_k", eth_src, CLK_OPS_PARENT_ENABLE | + CLK_SET_RATE_NO_REPARENT, _NO_GATE, _MMUX(M_ETHCK), _DIV(RCC_ETHCKSELR, 4, 4, CLK_DIVIDER_ALLOW_ZERO, NULL)),