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=-1.0 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_PASS 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 1D642C43381 for ; Thu, 7 Mar 2019 08:41:36 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (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 DDE6520652 for ; Thu, 7 Mar 2019 08:41:35 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="HvoW/o/S"; dkim=fail reason="signature verification failed" (1024-bit key) header.d=samsung.com header.i=@samsung.com header.b="IfVearek" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org DDE6520652 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=samsung.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+infradead-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=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:References:In-reply-to:MIME-version: Date:Message-id:From:To:Subject:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=ODLPMpwxXhUH9KOlbm6Nz5hSicFtK7F01RAI6/ma0cs=; b=HvoW/o/ScjSU+e q6uX2yB3FqriqqH1+OoJk4sqj6KXjJlhiTbaWMIEVkIRVSaVctNnrDZ6gNHdGL+g6k+Uj2YDpxJPI 1Cy57uEeS2fKk8vI5GbJ2BuUmPViO5qc0z/urJnGuAb/KVvp8JOVJdPkSf/jowH2TygMh64t4Gmjp npiwa5zkG61r0fthe6Gn/mo4pRj8cSlhccf1KAdtga4ZuY7K0wOUHPJP/y9Zj4cWTXWBp7SnnkX0z sa5PGSHQdK3xQx4LwAmDylZH/y8yZEsk1UBUZIR2tau9BQBgAWUSnZqlX4Dv5AD+dZGyuMzlSJpDX zN60y1GZ1wUYRMO3gHfQ==; 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 1h1oao-0002zR-AE; Thu, 07 Mar 2019 08:41:30 +0000 Received: from mailout2.samsung.com ([203.254.224.25]) by bombadil.infradead.org with esmtps (Exim 4.90_1 #2 (Red Hat Linux)) id 1h1oaf-0002jD-15 for linux-arm-kernel@lists.infradead.org; Thu, 07 Mar 2019 08:41:25 +0000 Received: from epcas1p2.samsung.com (unknown [182.195.41.46]) by mailout2.samsung.com (KnoxPortal) with ESMTP id 20190307084108epoutp0284944b6bb1039ecd94a1c5acab708018~JoIuk0S4M0553805538epoutp02l; Thu, 7 Mar 2019 08:41:08 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 mailout2.samsung.com 20190307084108epoutp0284944b6bb1039ecd94a1c5acab708018~JoIuk0S4M0553805538epoutp02l DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=samsung.com; s=mail20170921; t=1551948068; bh=tNCPZ/U2qH3g/U1ivb0DsWR77u64LmUQw7nx0kFq41E=; h=Subject:To:Cc:From:Date:In-reply-to:References:From; b=IfVearekEr8Vo8O36kotgAckXEsm7xfe8wn6RO2dcBhdptVXlsk5ITJ/gx0SQ0IZE WLdhR2eh5KZDn4IIqqkEAo001/UO5RUUPtssj0Pfy2gpoy5YnvW40/Hk+6qKd/FWtd nm6YRaTYymkpuVjq57o6Qc31rPVRtmx7VAq6SU+k= Received: from epsmges1p3.samsung.com (unknown [182.195.42.55]) by epcas1p4.samsung.com (KnoxPortal) with ESMTP id 20190307084107epcas1p4408e05a224f906528286548b6d21f9cf~JoItfkVWF1986719867epcas1p4z; Thu, 7 Mar 2019 08:41:07 +0000 (GMT) Received: from epcas1p4.samsung.com ( [182.195.41.48]) by epsmges1p3.samsung.com (Symantec Messaging Gateway) with SMTP id 1F.28.04069.229D08C5; Thu, 7 Mar 2019 17:41:07 +0900 (KST) Received: from epsmgms2p1new.samsung.com (unknown [182.195.42.142]) by epcas1p3.samsung.com (KnoxPortal) with ESMTP id 20190307084106epcas1p355e4c9b3150f395f0a58f4f1ab052513~JoItG9PMA0113001130epcas1p3s; Thu, 7 Mar 2019 08:41:06 +0000 (GMT) X-AuditID: b6c32a37-971ff70000000fe5-94-5c80d922c0b6 Received: from epmmp1.local.host ( [203.254.227.16]) by epsmgms2p1new.samsung.com (Symantec Messaging Gateway) with SMTP id F2.5D.04015.229D08C5; Thu, 7 Mar 2019 17:41:06 +0900 (KST) Received: from [106.116.147.40] by mmp1.samsung.com (Oracle Communications Messaging Server 7.0.5.31.0 64bit (built May 5 2014)) with ESMTPA id <0PNZ00AECMSDW070@mmp1.samsung.com>; Thu, 07 Mar 2019 17:41:06 +0900 (KST) Subject: Re: [PATCH v4 4/8] drivers: devfreq: add DMC driver for Exynos5422 To: Chanwoo Choi From: Sylwester Nawrocki Message-id: <84c06add-8375-55a6-01d6-ebbc6af011a9@samsung.com> Date: Thu, 07 Mar 2019 09:41:00 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.5.1 MIME-version: 1.0 In-reply-to: <4bbc0f61-952e-bcdb-4645-2644a122ac99@samsung.com> Content-language: en-GB X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFlrIKsWRmVeSWpSXmKPExsWy7bCmga7yzYYYg41HmCw2zljPanH9y3NW i2dHtS3mHznHatH/+DWzxfnzG9gtzja9Ybe41SBjsenxNVaLy7vmsFl87j3CaDHj/D4mi7VH 7rJb3G5cwebA57Fz1l12j02rOtk8Ni+p9zj4bg+TR9+WVYwenzfJBbBFcdmkpOZklqUW6dsl cGVsXf6ZsaCDreJ07y/2BsYPLF2MnBwSAiYSnw/vALK5OIQEdjBKPJ3/hhXC+c4o8bXrKlzV j6WLoKp2M0qsXv6aGcK5zyhxctJmNpAqYQFvibUdy5lBbBEBDYmZf68wghQxC+xlkTg4aR9Y EZuAoUTv0T5GEJtXwE5i2aybrCA2i4CqxOVbPWDNogIREu+f7maBqBGU+DH5HpjNKWAv8WnT O7B6ZgFNiRdfJrFA2OISx+7fZISw5SU2r3kLdp2EQDu7xP2/a9khfnCReLBtN5DNAWRLS1w6 agsRrpbYtb0bqr6DUaLlwnZmiIS1xOHjF6GW8Um8+9rDCtHLK9HRJgRhekic2psCCYgJzBIf 5/9imcAoMwvJ2bOQnDoLyamzkJy6gJFlFaNYakFxbnpqsWGBsV5xYm5xaV66XnJ+7iZGcMLR Mt/BuOGczyFGAQ5GJR7eiNP1MUKsiWXFlbmHGCU4mJVEeHcea4gR4k1JrKxKLcqPLyrNSS0+ xCjNwaIkzrvewTlGSCA9sSQ1OzW1ILUIJsvEwSnVwKjlpXL5xPNJO+0e2ctGbHrQJ1LI6tFs ef2H060tepsnca7w7ShW4EjuY429d9HxKF/k98yYVXYMhwoLpG8ufP1A97xe5hFe/8JlVn8Y Xzob+329cnNu6RTPcylpCvP37X+SuY3b695+Zmbm91tMFY8ceOp48t3rJ2JxcxN/5UdoXJna J3uTp1uJpTgj0VCLuag4EQAKdUrbNAMAAA== X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFprIIsWRmVeSWpSXmKPExsVy+t9jAV2lmw0xBr/XKFpsnLGe1eL6l+es Fs+OalvMP3KO1aL/8Wtmi/PnN7BbnG16w25xq0HGYtPja6wWl3fNYbP43HuE0WLG+X1MFmuP 3GW3uN24gs2Bz2PnrLvsHptWdbJ5bF5S73Hw3R4mj74tqxg9Pm+SC2CL4rJJSc3JLEst0rdL 4MrYuvwzY0EHW8Xp3l/sDYwfWLoYOTkkBEwkfixdBGRzcQgJ7GSUmHl/BRuE85BRYvmfi6wg VcIC3hJrO5Yzg9giAhoSM/9eYQQpYhY4yCJxe+Y8ZoiOScwSLUtfg81lEzCU6D3axwhi8wrY SSybdRNsEouAqsTlWz1gk0QFIiTuXnzBAlEjKPFj8j0wm1PAXuLTpndA9RxAG9QlpkzJBQkz C4hLHLt/kxHClpfYvOYt8wRGgVlIumchdMxC0jELSccCRpZVjJKpBcW56bnFRgWGeanlesWJ ucWleel6yfm5mxiBEbXtsFbfDsb7S+IPMQpwMCrx8CZcqo8RYk0sK67MPcQowcGsJMK781hD jBBvSmJlVWpRfnxRaU5q8SFGaQ4WJXHe23nHIoUE0hNLUrNTUwtSi2CyTBycUg2MSuEv5QOn f1G9Pj+5cP0mnd/tq7LsmvZf5V4b/HuFceyXsytWsDY2zOKwPcrBcDH2ZLJr5/SD3ZeeaD6Y 9eeWiMH28MTD/Oe6JNMDpvDWZqa9zfynMPWn2ZW4io0HFi222ba5vtYopeTtnhlCTpwt/nbG z9q3qJhJ/DZoW36N9e6Piq8FVmxMSizFGYmGWsxFxYkAXHb2PKQCAAA= X-CMS-MailID: 20190307084106epcas1p355e4c9b3150f395f0a58f4f1ab052513 CMS-TYPE: 101P X-CMS-RootMailID: 20190201164720eucas1p13aac6550399d240b261a2cbe489d3dfc References: <1549039612-28905-1-git-send-email-l.luba@partner.samsung.com> <1549039612-28905-5-git-send-email-l.luba@partner.samsung.com> <94e169cf-4dc2-82ec-1385-852bc7853931@samsung.com> <4bbc0f61-952e-bcdb-4645-2644a122ac99@samsung.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190307_004121_868338_F9196BEA X-CRM114-Status: GOOD ( 21.31 ) 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: linux-arm-kernel , devicetree , linux-samsung-soc , Linux PM list , Bartlomiej Zolnierkiewicz , linux-kernel , Krzysztof Kozlowski , Lukasz Luba , Kyungmin Park , Kukjin Kim , MyungJoo Ham , cwchoi00@gmail.com, Marek Szyprowski Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org Hi Chanwoo, On 3/7/19 02:10, Chanwoo Choi wrote: > This patch has the another quetion about the clocks in > exynos5_dmc_init_clks(). This functions used 'clk_set_parent' > to make the hierarchy between clocks. I think it is possible to make > the relation of clocks in DT by using the 'assigned-clocks'. I'm fine either way, AFAICS it is a matter of setting parent of just one clock - "mout_mx_mspll_ccore". The driver needs to get that clock anyway to enable/disable it as required. So we will not gain much from using assigned-clocks I'd say. I don't really have a strong opinion here as I don't know detailed requirements of the DMC clock configuration sequence. I'm inclined to keep it in driver as it would be more flexible. -- Regards, Sylwester _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel