Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id A15B1C433FE for ; Wed, 15 Dec 2021 14:08:46 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S243180AbhLOOIp (ORCPT ); Wed, 15 Dec 2021 09:08:45 -0500 Received: from wnew1-smtp.messagingengine.com ([64.147.123.26]:58805 "EHLO wnew1-smtp.messagingengine.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S243156AbhLOOIn (ORCPT ); Wed, 15 Dec 2021 09:08:43 -0500 Received: from compute1.internal (compute1.nyi.internal [10.202.2.41]) by mailnew.west.internal (Postfix) with ESMTP id E9CB62B0024D; Wed, 15 Dec 2021 09:08:40 -0500 (EST) Received: from mailfrontend2 ([10.202.2.163]) by compute1.internal (MEProxy); Wed, 15 Dec 2021 09:08:42 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=cerno.tech; h= date:from:to:cc:subject:message-id:references:mime-version :content-type:in-reply-to; s=fm1; bh=m6yMRlUpraLi1xtxRrCa3cMeEFx gKk31Q2bUedXIMts=; b=B37uD+8zlRC+bFTMc47tywug9eQZUJ4wHpviRhr6hiv Yz+BGwPwnMqRZaRP5D1H6SgDoWeBwenUXqiG70lsiGGAEqwY8mMXCJ4KuWL/CzDt 0brDNMzZkBnCeKXF8MHi5Jjx1Cex9C4X/GwvYZRQhun4FGta6TZEBJbdLMjwxXFE cxof6lnHhgvCmt0OnY68u0nIEcGGADjVTvpZXIrlssx1RRSJWj1J3SoArRSvAEb5 idFQhXxQbjtO/bxUvo5QecNbHD8SKcikiKw1gQtGxS+TH8nlwJsyLaRGrhfhrT/U Z+lO1nbWGhbk+z7J54K0xQPXkU93fdqSRMIJqf/VEDw== DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=cc:content-type:date:from:in-reply-to :message-id:mime-version:references:subject:to:x-me-proxy :x-me-proxy:x-me-sender:x-me-sender:x-sasl-enc; s=fm1; bh=m6yMRl UpraLi1xtxRrCa3cMeEFxgKk31Q2bUedXIMts=; b=NDzjqOhyUQ3yep0d6mzjgg s15xsYgk7ahAemCRQAwPuR2uBHoN5Z6gBsUiU3IPiH1rAsFoMZnsD7BIgQAZXGKn D7/QGW8CNhxP38WTjK/jIPYbW/8suW6jf5AK3rVD7KLTLEtHLQuMq+357sfnm5mZ NF0Ie2hMER4/0s4aGkLYcT29n/kcAufZLvMz+npzPUzvj1iBgYvaklGHKOKB3F4Z 1ZB8E6NLUhqP5LAS2CSHBD/GObqaFJNq4B8oPSUW76Dg1OjMl7hCPGtrlrfkjIi9 WtCA0R1eQEQdne4wE895otZKIeeHPgZQjK2/kdy534W75tOuTYUwfFFnvqa+yRjQ == X-ME-Sender: X-ME-Received: X-ME-Proxy-Cause: gggruggvucftvghtrhhoucdtuddrgedvuddrledvgdeiudcutefuodetggdotefrodftvf curfhrohhfihhlvgemucfhrghsthforghilhdpqfgfvfdpuffrtefokffrpgfnqfghnecu uegrihhlohhuthemuceftddtnecusecvtfgvtghiphhivghnthhsucdlqddutddtmdenuc fjughrpeffhffvuffkfhggtggujgesghdtreertddtvdenucfhrhhomhepofgrgihimhgv ucftihhprghrugcuoehmrgigihhmvgestggvrhhnohdrthgvtghhqeenucggtffrrghtth gvrhhnpeevveefffduveeitdegtefhhfetueffteefffdvheevvdehteethedvleffgfej vdenucffohhmrghinhepkhgvrhhnvghlrdhorhhgnecuvehluhhsthgvrhfuihiivgeptd enucfrrghrrghmpehmrghilhhfrhhomhepmhgrgihimhgvsegtvghrnhhordhtvggthh X-ME-Proxy: Received: by mail.messagingengine.com (Postfix) with ESMTPA; Wed, 15 Dec 2021 09:08:38 -0500 (EST) Date: Wed, 15 Dec 2021 15:08:36 +0100 From: Maxime Ripard To: Mike Turquette , Stephen Boyd , dri-devel@lists.freedesktop.org, Daniel Vetter , David Airlie , Maarten Lankhorst , Thomas Zimmermann Cc: linux-clk@vger.kernel.org, Dave Stevenson , Phil Elwell , Tim Gover , Dom Cobley , Emma Anholt , linux-kernel@vger.kernel.org, Russell King Subject: Re: [PATCH v2 0/3] clk: Implement a clock request API Message-ID: <20211215140836.bpxyau4atm74sfkk@houat> References: <20210914093515.260031-1-maxime@cerno.tech> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="lg2pqwgvtun7kcl5" Content-Disposition: inline In-Reply-To: <20210914093515.260031-1-maxime@cerno.tech> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org --lg2pqwgvtun7kcl5 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Hi Stephen, Mike, On Tue, Sep 14, 2021 at 11:35:12AM +0200, Maxime Ripard wrote: > Hi, >=20 > This is a follow-up of the discussion here: > https://lore.kernel.org/linux-clk/20210319150355.xzw7ikwdaga2dwhv@gilmour/ >=20 > This implements a mechanism to raise and lower clock rates based on consu= mer > workloads, with an example of such an implementation for the RaspberryPi4= HDMI > controller. >=20 > There's a couple of things worth discussing: >=20 > - The name is in conflict with clk_request_rate, and even though it fee= ls > like the right name to me, we should probably avoid any confusion >=20 > - The code so far implements a policy of always going for the lowest ra= te > possible. While we don't have an use-case for something else, this sh= ould > maybe be made more flexible? This has been posted around 8 monthes ago now: https://lore.kernel.org/all/20210413101320.321584-1-maxime@cerno.tech/ I haven't had any review on this, and I'm struggling to see how we can move forward. Given your initial reaction, I'm guessing you were a bit reluctant at first with the approach, if so, can you share *any* direction in which I should amend that series to support similar features? Maxime --lg2pqwgvtun7kcl5 Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQRcEzekXsqa64kGDp7j7w1vZxhRxQUCYbn25AAKCRDj7w1vZxhR xXPHAQDOqQ4yaKrzcO5kvJncig3EqvvGSCVhhwqr3YlVw4JwogD7B2wtLggYl6h3 hip/UU8FeqCCPB/OZzacWJicCo8cFQo= =PF1A -----END PGP SIGNATURE----- --lg2pqwgvtun7kcl5--