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=-17.0 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,UNPARSEABLE_RELAY, 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 7C3A3C433E0 for ; Tue, 23 Mar 2021 11:35:14 +0000 (UTC) Received: from desiato.infradead.org (desiato.infradead.org [90.155.92.199]) (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 008BD619B1 for ; Tue, 23 Mar 2021 11:35:13 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 008BD619B1 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-mediatek-bounces+linux-mediatek=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=desiato.20200630; h=Sender:Content-Transfer-Encoding :Content-Type:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To:Message-ID:Date: Subject:CC:To:From:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=eTHs/dc0awfkc0z3NUoVqysM3GwftHB4eUHoLD+bHTc=; b=KnhhpI+w24iU+0Io+UuM2E2sB o1w6XQRdsxv4t+hi8jkTllhht7juRmOtjTFH8luHvqUbhJIy6MrEVzFjE7QpUP7HRrnob1oZoI9s3 JX7S+htkbhtBT+gMMakeq3YXCY+MGpEurG04NJhnXYOZyDF2oaQRGUBSS1ZlJWvikHcoVHDXGWrna 8vGoEv+ZEJBK7IDM/Fm6aTGi6G7Pz+Ltidv2tjLLy8QbHTpuMXpDBx4bd9GXVOidXIGUCIzUnr6n7 +LLtCfExhsSKAUHIcQaU6p1X69qdydIYT1BoLNQG66Y2Lu08oiKrjfafFpN9uCbG0Q7quzk4cpnV7 gSrqGMOkQ==; Received: from localhost ([::1] helo=desiato.infradead.org) by desiato.infradead.org with esmtp (Exim 4.94 #2 (Red Hat Linux)) id 1lOfJN-00Eifs-3t; Tue, 23 Mar 2021 11:35:01 +0000 Received: from mailgw01.mediatek.com ([216.200.240.184]) by desiato.infradead.org with esmtps (Exim 4.94 #2 (Red Hat Linux)) id 1lOfIi-00EiXm-0w; Tue, 23 Mar 2021 11:34:22 +0000 X-UUID: bc67ec36ae3c405e8d533df3c46bc544-20210323 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=GtLlEQtFVYUJ6SnCVkNxU4lDx19Jh6fSbFyIZAPS6/Y=; b=QudIqlr01C/gg+42Q29aqh1aKYDqG4hP4JjU5Ne3CAQYQ0TsxaeaocVdj8z7F2R/3XRF1RcD5Ho+kTqr0IFLcjLY57vRIxorJvOGpMxE1PFsoUJy6vqAMdBEY/BF057Y826yLZuTi9rblTWOLXlkjR0uuGyAnmbU0Q2+P0KcwHU=; X-UUID: bc67ec36ae3c405e8d533df3c46bc544-20210323 Received: from mtkcas67.mediatek.inc [(172.29.193.45)] by mailgw01.mediatek.com (envelope-from ) (musrelay.mediatek.com ESMTP with TLSv1.2 ECDHE-RSA-AES256-SHA384 256/256) with ESMTP id 949321265; Tue, 23 Mar 2021 03:34:11 -0800 Received: from mtkmbs05n1.mediatek.inc (172.21.101.15) by MTKMBS62N1.mediatek.inc (172.29.193.41) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Tue, 23 Mar 2021 04:34:10 -0700 Received: from mtkcas11.mediatek.inc (172.21.101.40) by mtkmbs05n1.mediatek.inc (172.21.101.15) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Tue, 23 Mar 2021 19:34:08 +0800 Received: from mtksdccf07.mediatek.inc (172.21.84.99) by mtkcas11.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Tue, 23 Mar 2021 19:34:08 +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 CC: , , , , , , Andrew-sh.Cheng Subject: [PATCH V8 7/8] devfreq: mediatek: cci devfreq register opp notification for SVS support Date: Tue, 23 Mar 2021 19:34:00 +0800 Message-ID: <1616499241-4906-8-git-send-email-andrew-sh.cheng@mediatek.com> X-Mailer: git-send-email 1.8.1.1.dirty In-Reply-To: <1616499241-4906-1-git-send-email-andrew-sh.cheng@mediatek.com> References: <1616499241-4906-1-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-20210323_113420_531823_588C59D3 X-CRM114-Status: GOOD ( 16.10 ) X-BeenThere: linux-mediatek@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "Linux-mediatek" Errors-To: linux-mediatek-bounces+linux-mediatek=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. 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 018543db7bae..6942a48f3f4f 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-mediatek mailing list Linux-mediatek@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-mediatek