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=-9.8 required=3.0 tests=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,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 ACFF5C433E0 for ; Fri, 10 Jul 2020 02:42:59 +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 7EC3020663 for ; Fri, 10 Jul 2020 02:42:59 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="A//XKPk2"; dkim=fail reason="signature verification failed" (1024-bit key) header.d=mediatek.com header.i=@mediatek.com header.b="LQHj5xzR" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 7EC3020663 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: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=rk2Z/qmMq02HCo76K2E5VADxLPrEYSOBTJ3Gkj+D/iY=; b=A//XKPk2T2KDg0Epk1Lca5its Yf8NTTXzY+G8X18zBYyfw3jkVnfFJf2QBTUTr9aiEHF2tYxMi+9cW/MdsLB8DG4N1fwjCXQiwI/Oq izZOj2B50Ses7ruwwCR2IBzPDg2o5wvYi/Pk/I6mCiPgghoWQB5pq5nfBlS5w7Jdy2BpU1W4qdF8b qoe/HvmmBZrzFLn+H+RFMfMNU7+Iqvp4jlmxUP4PwHL/a2DDli2lwZ6b/wnmh5laUcNSuZG2+gmL0 FB21FtjdKNo61QTsExm6HlSaYE4rn95TB1iZJn/8GEkH2jzRrbYt5+M3aqweOzLi1sPw27451nmPF vJ7KQEqYw==; Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1jtiyp-0005kZ-Tu; Fri, 10 Jul 2020 02:41:40 +0000 Received: from mailgw02.mediatek.com ([216.200.240.185]) by merlin.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1jtiyk-0005hh-73; Fri, 10 Jul 2020 02:41:35 +0000 X-UUID: fe4e3b8d4b8c4d1c8130401f236390d2-20200709 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:References:In-Reply-To:Message-ID:Date:Subject:CC:To:From; bh=PZwBkaefgjvUhsIgn/PVNF0GxFVrwyd890w3oPBDTiI=; b=LQHj5xzRKEbhKcWo2BUDNXCaVxwCS2VsEeTJ0GCbWX/VYcSxCAgHyoGDzC/Gd637qoWoXgd05WM1+8gCoKPC3RAtg1IfOlA0s3tXB4iX5mfY66GB60xm8vw8XKgeDm/JkUcBYGYFFxtaIUQu79BqHNJnSPkLniTbKi3k76r6JeI=; X-UUID: fe4e3b8d4b8c4d1c8130401f236390d2-20200709 Received: from mtkcas66.mediatek.inc [(172.29.193.44)] by mailgw02.mediatek.com (envelope-from ) (musrelay.mediatek.com ESMTP with TLS) with ESMTP id 510602195; Thu, 09 Jul 2020 18:41:27 -0800 Received: from mtkmbs07n1.mediatek.inc (172.21.101.16) by MTKMBS62N2.mediatek.inc (172.29.193.42) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Thu, 9 Jul 2020 19:31:35 -0700 Received: from mtkcas07.mediatek.inc (172.21.101.84) by mtkmbs07n1.mediatek.inc (172.21.101.16) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Fri, 10 Jul 2020 10:31:34 +0800 Received: from mtksdccf07.mediatek.inc (172.21.84.99) by mtkcas07.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Fri, 10 Jul 2020 10:31:34 +0800 From: Andrew-sh.Cheng To: MyungJoo Ham , Kyungmin Park , Chanwoo Choi , "Rob Herring" , Mark Rutland , "Matthias Brugger" , "Rafael J. Wysocki" , Viresh Kumar , Nishanth Menon , "Stephen Boyd" , Liam Girdwood , Mark Brown Subject: [PATCH v7 7/8] devfreq: mediatek: cci devfreq register opp notification for SVS support Date: Fri, 10 Jul 2020 10:31:23 +0800 Message-ID: <1594348284-14199-8-git-send-email-andrew-sh.cheng@mediatek.com> X-Mailer: git-send-email 1.8.1.1.dirty In-Reply-To: <1594348284-14199-1-git-send-email-andrew-sh.cheng@mediatek.com> References: <1594348284-14199-1-git-send-email-andrew-sh.cheng@mediatek.com> MIME-Version: 1.0 X-MTK: N X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200709_224134_477623_9BEECE80 X-CRM114-Status: GOOD ( 17.03 ) 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: devicetree@vger.kernel.org, "Andrew-sh.Cheng" , srv_heupstream@mediatek.com, linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mediatek@lists.infradead.org, linux-arm-kernel@lists.infradead.org Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org From: "Andrew-sh.Cheng" SVS will change the voltage of opp item. CCI devfreq need to react to change frequency. Change-Id: I9d2ea9bd4be85970333eac92ab6fc330766e88da Signed-off-by: Andrew-sh.Cheng --- drivers/devfreq/mt8183-cci-devfreq.c | 27 +++++++++++++++++++++++++++ 1 file changed, 27 insertions(+) diff --git a/drivers/devfreq/mt8183-cci-devfreq.c b/drivers/devfreq/mt8183-cci-devfreq.c index 62d02464a34b..9ccc49ba0b9a 100644 --- a/drivers/devfreq/mt8183-cci-devfreq.c +++ b/drivers/devfreq/mt8183-cci-devfreq.c @@ -21,6 +21,7 @@ struct cci_devfreq { struct clk *cci_clk; int old_vproc; unsigned long old_freq; + struct notifier_block opp_nb; }; static int mtk_cci_set_voltage(struct cci_devfreq *cci_df, int vproc) @@ -89,6 +90,26 @@ static int mtk_cci_devfreq_target(struct device *dev, unsigned long *freq, return 0; } +static int ccidevfreq_opp_notifier(struct notifier_block *nb, + unsigned long event, void *data) +{ + struct dev_pm_opp *opp = data; + struct cci_devfreq *cci_df = container_of(nb, struct cci_devfreq, + opp_nb); + unsigned long freq, volt; + + if (event == OPP_EVENT_ADJUST_VOLTAGE) { + freq = dev_pm_opp_get_freq(opp); + /* current opp item is changed */ + if (freq == cci_df->old_freq) { + volt = dev_pm_opp_get_voltage(opp); + mtk_cci_set_voltage(cci_df, volt); + } + } + + return 0; +} + static struct devfreq_dev_profile cci_devfreq_profile = { .target = mtk_cci_devfreq_target, }; @@ -98,12 +119,15 @@ static int mtk_cci_devfreq_probe(struct platform_device *pdev) struct device *cci_dev = &pdev->dev; struct cci_devfreq *cci_df; struct devfreq_passive_data *passive_data; + struct notifier_block *opp_nb; int ret; cci_df = devm_kzalloc(cci_dev, sizeof(*cci_df), GFP_KERNEL); if (!cci_df) return -ENOMEM; + opp_nb = &cci_df->opp_nb; + cci_df->cci_clk = devm_clk_get(cci_dev, "cci_clock"); ret = PTR_ERR_OR_ZERO(cci_df->cci_clk); if (ret) { @@ -152,6 +176,9 @@ static int mtk_cci_devfreq_probe(struct platform_device *pdev) goto err_opp; } + opp_nb->notifier_call = ccidevfreq_opp_notifier; + dev_pm_opp_register_notifier(cci_dev, opp_nb); + return 0; err_opp: -- 2.12.5 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel