Received: by 2002:a05:6a10:8c0a:0:0:0:0 with SMTP id go10csp7144193pxb; Thu, 18 Feb 2021 02:36:21 -0800 (PST) X-Google-Smtp-Source: ABdhPJy4WyF/iryHfsIWClKdE7w1N56cYHKOAXE33hGeo3MNBnjxBENU83YVs/Tz1SDhlhDraPZS X-Received: by 2002:aa7:c752:: with SMTP id c18mr3613905eds.78.1613644581614; Thu, 18 Feb 2021 02:36:21 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1613644581; cv=none; d=google.com; s=arc-20160816; b=XfM8wiRHEJIXQZXm5tLXaW2t987vrBsIh9qRPOFu/XK/EM+Obp19fx1U73oz6IDAB5 Gw4faVKKv180Z3Z7xwzBu11GuF2QnvWM/CIIph7nMI72ogcs9H6W/reGKLIs+5avorab 2W8kKONno4hTUb/0plC5aVsmSL+9O8NoIsnk0L2mjsy/i8I8UOW7BuMTss80XXU620U5 b2f7P7XjgAaRw0G4/pSAlZMyJQCs1HWhfzbH21CMOE5K7jU55rNgVmpWPSj1aM0dy6pb THuvYHyzjPPzSY5/Bs9OwpeL1QzZgPOcY48ApzUDHoW3Q4m+rBbU4ZSeQawMHE9JhzkA 3bWg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:content-transfer-encoding:content-language :in-reply-to:mime-version:date:message-id:from:references:cc:to :subject; bh=Wj5vOzhvnmnq/0hBw6DaTOXrm0Rk1dTMNK/3J0obwLo=; b=0L8zTJ5aqC+2x+r9Rhyxi0p4UZfGZPIA48aadEIMyGshClhGP5NXZWkryE82TMLp1L JC1wH8PWValQpFQu7sBHszg4hZMrovWhSN9J0MyrXQpwrT9C9UGwYF01ZC9YmOHXnPtp zRUqtriuEIuTpHY/U/UDRGq4cCQ4FoEOqib2i5XX4ZC1HEkUA+aZyecTwfasy2csECx0 LUrSXo2st9BGdAFA5g6Il9N4RZXWiByiyLVfuIIfb4pbsI0yh+stERC+fp6T4OgxeevV kKUIr+EB6BqywMtI7kXQSvz6nZ0bok82Z+GvoviGj5Hyzwo5Pj+6RliuCaKPjaAh1VOr u1Dg== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id r23si3731754edy.410.2021.02.18.02.35.58; Thu, 18 Feb 2021 02:36:21 -0800 (PST) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232883AbhBRKcl (ORCPT + 99 others); Thu, 18 Feb 2021 05:32:41 -0500 Received: from mail.manjaro.org ([176.9.38.148]:43728 "EHLO mail.manjaro.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231693AbhBRJUH (ORCPT ); Thu, 18 Feb 2021 04:20:07 -0500 Received: from localhost (localhost [127.0.0.1]) by mail.manjaro.org (Postfix) with ESMTP id A82EA3E60036; Thu, 18 Feb 2021 10:18:44 +0100 (CET) X-Virus-Scanned: Debian amavisd-new at manjaro.org Received: from mail.manjaro.org ([127.0.0.1]) by localhost (manjaro.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id OJqSfgt5Bh4M; Thu, 18 Feb 2021 10:18:42 +0100 (CET) Subject: Re: [PATCH] clk: sunxi-ng: v3s: add support for variable rate audio pll output To: Icenowy Zheng , Maxime Ripard , Tobias Schramm Cc: Michael Turquette , Stephen Boyd , Chen-Yu Tsai , Jernej Skrabec , linux-clk@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org References: <20210212135725.283877-1-t.schramm@manjaro.org> <20210218075835.o43tyarpimrcwbvk@gilmour> From: Tobias Schramm Message-ID: <914aeb08-0534-48aa-2c2e-4e87d4360e29@manjaro.org> Date: Thu, 18 Feb 2021 10:18:39 +0100 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US-large Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Icenowy, > We have introducee SDM-based accurate audio PLL on several > other SoCs. Some people is quite sensitive about audio-related things. > While it is possible to support 24MHz * 128 / 25 / 5 = 24.576MHz without delta sigma modulation, matching 22.5792MHz is indeed not possible. I read you'd prefer me to use SDM like the other SoCs though? Shall I send a v2 utilizing SDM? Cheers, Tobias