From patchwork Sat Dec 26 12:15:54 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Martin Blumenstingl X-Patchwork-Id: 11990341 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=-15.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable 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 358ADC4332E for ; Sat, 26 Dec 2020 12:20:32 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 1BA44221E7 for ; Sat, 26 Dec 2020 12:20:32 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726239AbgLZMUZ (ORCPT ); Sat, 26 Dec 2020 07:20:25 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53882 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726081AbgLZMUP (ORCPT ); Sat, 26 Dec 2020 07:20:15 -0500 Received: from mail-ej1-x62f.google.com (mail-ej1-x62f.google.com [IPv6:2a00:1450:4864:20::62f]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 618DBC0613C1; Sat, 26 Dec 2020 04:19:35 -0800 (PST) Received: by mail-ej1-x62f.google.com with SMTP id n26so8619549eju.6; Sat, 26 Dec 2020 04:19:35 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=googlemail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=91uzX9btarYwTY48OYqVxCEpJMafqGhM2WDmwvMf2Sw=; b=o5krIQlBbFhNaKiyKPhMe1CnTfx/qpi2Q/3thkkIJvjGnJC72ealIx5Oh+pdBbZrTf NmT/WpQ/EVCy8FMLda5DsUYxqSgCxDYv9GeACSMig54Z0/GaEw42/qFTRZ0pVOyZ8Po8 5DFy0lvRDSOH/90p5HXIFIAMMPzteeY0yjkQ0PcuzRlPkyI4qTcZorA1zhV3ToEgdsoi AaXufWncHt28dOh3/qEudRyVq6BluZCktrI7JYDA9fVjl8B5rRvI/+cZABF9no9czPcV a+ztkbfrEwVLtRSXzaMOV6YO8QQwRQW3n8GYB7P2cZJdA73d0M6OnLGS8cODr98tHB/8 Wp8g== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=91uzX9btarYwTY48OYqVxCEpJMafqGhM2WDmwvMf2Sw=; b=cP/aepdF6hDq99LSzlyPtKjliqZXOKLWoRotT1HMxQzh33urlJFFFoYoDYwBdY8a9U Lgsazg5tDo0cJeOOgVLPHWUWQq2k9iNB8G72uYzuJMnbfveLQ3bQDPTj0pcseW1ofVHo Th2kQZwMi2BFwaXoeuZ2onZ9V4M7qkKFDsimhL/oGa0oQEnzstTtfR7W0BLtMU15vov1 zqw18axZURaGxyShKjwTpwoqU/8Zwk0Yo8jsCdwEs7AJS5J/DV10pEAcby6Jwp7WspIR zalh0zFWxQeZoKvUUyR6+lowZKrwpdEZS7TllDhEiviI8cJ/O9uvOcSenISUrTUcMnjO NYrg== X-Gm-Message-State: AOAM531h4YhUVj8fqM16yYdhbIAIuM/xHBK2Llb/uW8bhZdJDnvcCNtr lHCPjtQGiAJhZ2JMyjhO7AnzDaHK30U= X-Google-Smtp-Source: ABdhPJxW3YGRfa4J2RJQPTSv758UIElxdRO96NXJv6iOlUdtwSq6Q9RL32l7OoaHk5kn5ZtqlwHyUA== X-Received: by 2002:a17:906:174f:: with SMTP id d15mr28145594eje.52.1608985174028; Sat, 26 Dec 2020 04:19:34 -0800 (PST) Received: from localhost.localdomain (p200300f137218200428d5cfffeb99db8.dip0.t-ipconnect.de. [2003:f1:3721:8200:428d:5cff:feb9:9db8]) by smtp.googlemail.com with ESMTPSA id j9sm33842662eds.66.2020.12.26.04.19.33 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 26 Dec 2020 04:19:33 -0800 (PST) From: Martin Blumenstingl To: linux-amlogic@lists.infradead.org, jbrunet@baylibre.com Cc: mturquette@baylibre.com, sboyd@kernel.org, linux-clk@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Martin Blumenstingl Subject: [PATCH 1/3] clk: meson: clk-pll: fix initializing the old rate (fallback) for a PLL Date: Sat, 26 Dec 2020 13:15:54 +0100 Message-Id: <20201226121556.975418-2-martin.blumenstingl@googlemail.com> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20201226121556.975418-1-martin.blumenstingl@googlemail.com> References: <20201226121556.975418-1-martin.blumenstingl@googlemail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-clk@vger.kernel.org The "rate" parameter in meson_clk_pll_set_rate() contains the new rate. Retrieve the old rate with clk_hw_get_rate() so we don't inifinitely try to switch from the new rate to the same ratte again. Fixes: 7a29a869434e8b ("clk: meson: Add support for Meson clock controller") Signed-off-by: Martin Blumenstingl --- drivers/clk/meson/clk-pll.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/clk/meson/clk-pll.c b/drivers/clk/meson/clk-pll.c index b17a13e9337c..9404609b5ebf 100644 --- a/drivers/clk/meson/clk-pll.c +++ b/drivers/clk/meson/clk-pll.c @@ -371,7 +371,7 @@ static int meson_clk_pll_set_rate(struct clk_hw *hw, unsigned long rate, if (parent_rate == 0 || rate == 0) return -EINVAL; - old_rate = rate; + old_rate = clk_hw_get_rate(hw); ret = meson_clk_get_pll_settings(rate, parent_rate, &m, &n, pll); if (ret)