Received: by 2002:ad5:474a:0:0:0:0:0 with SMTP id i10csp919516imu; Fri, 25 Jan 2019 13:24:57 -0800 (PST) X-Google-Smtp-Source: ALg8bN7yv5b/aFbbxrsTPtBg6p3W1RTFhKyBxPtJt/iaOCYeoJvMEnpfXQAakU+k4WZbZwV9s8kP X-Received: by 2002:a65:43c5:: with SMTP id n5mr11742425pgp.250.1548451497403; Fri, 25 Jan 2019 13:24:57 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1548451497; cv=none; d=google.com; s=arc-20160816; b=e6YAvg1SUQ0srQfV4nLGHgYm5otg0GWuld38V/Kon+PvOqlxe97COm1cErVBW+jdrn lhwNDrbMS8cZXmnymv0Mx3AfNZqevB2GPBNpSr+FCrIIUBpJHQF8+gw+UNlGIGSTEGD+ /qUA5l7V/nv86Cey1/Xp2khh6OjMPq3K+b+xykGbdzKkXpRfdr3ZXtiFyWqCQ/CjdT+R eOBGw3AmPsxhkKOD9NlGi9TgjtDWlwK+uxbaEL9G5gtyB7/L0qVy30Mpm5rOvbZNp8p1 spkTiv9tywiZAayxvNPdzcPxbAuxoZvDRAqPn4Ll2oBLV3dehQHNnqyHH/z3LqyKDU5/ FM/Q== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:user-agent:in-reply-to :content-transfer-encoding:content-disposition:mime-version :references:message-id:subject:cc:to:from:date; bh=KW4eY1taxakU7zvZZtNqfYIdOnqtVHajyi8Dw5qmero=; b=ogiDpb1/zFb+TQi1r4tCJmM2vzmYKj+fvBwRou0PgCkkDYnVORCyie5cO2fbR+bp2R 6qyM8ipB1S4Pm/I0YcIqaOit/v+9iGXsGIbiBsPzNHx8oYwLg3bZqd2wSvoRyqq/KeAh A2/Y1VYzlsaVhmbrvs1BaLTOlQemxY9i5jBNdV9JHJQ73XLfD/X05xrInmrV7um3gCUG 2c3YYODzfoBMo7HuVSNLFnA8ybIr265K4bENAV2UTxiYnJlvzn4+H025wdp7DvP6rcWW UkDIYVw4r7It/8t8ZxIg5S7OSb5z0QE4j0/7fUqSN3nDG7Ly6dzrNlle/oJCrILBOCSS ymYg== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id a6si25716986pfa.227.2019.01.25.13.24.40; Fri, 25 Jan 2019 13:24:57 -0800 (PST) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726895AbfAYVYg convert rfc822-to-8bit (ORCPT + 99 others); Fri, 25 Jan 2019 16:24:36 -0500 Received: from mail.bootlin.com ([62.4.15.54]:33879 "EHLO mail.bootlin.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726179AbfAYVYf (ORCPT ); Fri, 25 Jan 2019 16:24:35 -0500 Received: by mail.bootlin.com (Postfix, from userid 110) id E70E2207B2; Fri, 25 Jan 2019 22:24:32 +0100 (CET) X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on mail.bootlin.com X-Spam-Level: X-Spam-Status: No, score=-1.0 required=5.0 tests=ALL_TRUSTED,SHORTCIRCUIT, URIBL_BLOCKED shortcircuit=ham autolearn=disabled version=3.4.2 Received: from localhost (lfbn-1-10718-76.w90-89.abo.wanadoo.fr [90.89.68.76]) by mail.bootlin.com (Postfix) with ESMTPSA id B1B6A20397; Fri, 25 Jan 2019 22:24:32 +0100 (CET) Date: Fri, 25 Jan 2019 22:24:33 +0100 From: Maxime Ripard To: Jagan Teki Cc: David Airlie , Daniel Vetter , Chen-Yu Tsai , Michael Turquette , Rob Herring , Mark Rutland , linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-clk@vger.kernel.org, dri-devel@lists.freedesktop.org, devicetree@vger.kernel.org, Michael Trimarchi , linux-amarula@amarulasolutions.com, linux-sunxi@googlegroups.com Subject: Re: [PATCH v6 11/22] clk: sunxi-ng: a64: Add minimum rate for PLL_MIPI Message-ID: <20190125212433.ni2jg3wvpyjazlxf@flea> References: <20190124195900.22620-1-jagan@amarulasolutions.com> <20190124195900.22620-12-jagan@amarulasolutions.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: 8BIT In-Reply-To: <20190124195900.22620-12-jagan@amarulasolutions.com> User-Agent: NeoMutt/20180716 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, Jan 25, 2019 at 01:28:49AM +0530, Jagan Teki wrote: > Minimum PLL used for MIPI is 500MHz, as per manual, but > lowering the min rate by 300MHz can result proper working > nkms divider with the help of desired dclock rate from > panel driver. > > Signed-off-by: Jagan Teki > Acked-by: Stephen Boyd Going 200MHz below the minimum doesn't seem really reasonable. What is the issue that you are trying to fix here? It looks like it's picking bad dividers, but if that's the case, this isn't the proper fix. Maxime -- Maxime Ripard, Bootlin Embedded Linux and Kernel engineering https://bootlin.com