From patchwork Mon Mar 1 16:12:46 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg KH X-Patchwork-Id: 390282 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=-18.8 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER, INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, USER_AGENT_GIT 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 CA99DC433DB for ; Mon, 1 Mar 2021 16:21:26 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 8079164F44 for ; Mon, 1 Mar 2021 16:21:26 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235413AbhCAQVX (ORCPT ); Mon, 1 Mar 2021 11:21:23 -0500 Received: from mail.kernel.org ([198.145.29.99]:56644 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S237784AbhCAQTF (ORCPT ); Mon, 1 Mar 2021 11:19:05 -0500 Received: by mail.kernel.org (Postfix) with ESMTPSA id 6FB3E64EC4; Mon, 1 Mar 2021 16:17:29 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1614615449; bh=achybmWqggPsIEp4S9TA73cspTASuxLJc3rLOcSkiyw=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=t4qdW6Lb1Nf1S+H8JmJv4o93qt5Evxy8t3+4C4snGK2ikTRQ+7WxOG0WfDqnJcTw7 A++eKU3fpDHSiTx0m6fk0zZQY8SbCzR8wECVRH2VVW5nXY8RQ6XzLeiDIGKCtZLMuw NlMtK2n4NtW7fmcVub3ZZciEP9t0CzlGD8Iz1Bdk= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Martin Blumenstingl , Jerome Brunet , Sasha Levin Subject: [PATCH 4.4 34/93] clk: meson: clk-pll: fix initializing the old rate (fallback) for a PLL Date: Mon, 1 Mar 2021 17:12:46 +0100 Message-Id: <20210301161008.592174223@linuxfoundation.org> X-Mailer: git-send-email 2.30.1 In-Reply-To: <20210301161006.881950696@linuxfoundation.org> References: <20210301161006.881950696@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Martin Blumenstingl [ Upstream commit 2f290b7c67adf6459a17a4c978102af35cd62e4a ] 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 rate again. Fixes: 7a29a869434e8b ("clk: meson: Add support for Meson clock controller") Signed-off-by: Martin Blumenstingl Signed-off-by: Jerome Brunet Link: https://lore.kernel.org/r/20201226121556.975418-2-martin.blumenstingl@googlemail.com Signed-off-by: Sasha Levin --- 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 664edf0708ea7..50b1138aaad71 100644 --- a/drivers/clk/meson/clk-pll.c +++ b/drivers/clk/meson/clk-pll.c @@ -138,7 +138,7 @@ 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); rate_set = meson_clk_get_pll_settings(pll, rate); if (!rate_set)