From patchwork Mon Jan 1 19:34:48 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Bryan O'Donoghue X-Patchwork-Id: 10139359 X-Patchwork-Delegate: agross@codeaurora.org Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id E61EF60362 for ; Mon, 1 Jan 2018 19:38:48 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id D5F8E285C9 for ; Mon, 1 Jan 2018 19:38:48 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id C8B53285E6; Mon, 1 Jan 2018 19:38:48 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.8 required=2.0 tests=BAYES_00,DKIM_SIGNED, RCVD_IN_DNSWL_HI,T_DKIM_INVALID autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 53B9D285C9 for ; Mon, 1 Jan 2018 19:38:48 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753526AbeAATiV (ORCPT ); Mon, 1 Jan 2018 14:38:21 -0500 Received: from mail-wm0-f67.google.com ([74.125.82.67]:46594 "EHLO mail-wm0-f67.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753098AbeAATfK (ORCPT ); Mon, 1 Jan 2018 14:35:10 -0500 Received: by mail-wm0-f67.google.com with SMTP id r78so58587635wme.5 for ; Mon, 01 Jan 2018 11:35:10 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=nexus-software-ie.20150623.gappssmtp.com; s=20150623; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=ynW/Pnh4gWUQUPzhDVQ1zF11kBmP0B6r6BzGSRlG0B0=; b=f8O71bwVOBRucphR8b0GtI97pOekJhmc6uEF1hXkDzEZeSIFeDkNY7zvKc8VWpuRre vx1ppYDNutN+pM045WA7fwuNg2Kjm9lLokTbzvdj0apcBgg+k2nJJDKUChc749/bx/Nt QbIUSRzgnpEGPFszx8ck0eMZAwBorxH20kQssv77mbgjH1Pu/9dOlCcWysUxxP2IHTyD tg5UxPuceW/YJLmiI8akbNSt3UJNN92LOPk0sW1hyx3DniFy6F7ni+fKPjx+vFouRy1D lcpBvwJ6RNP0lHQD7wOLmHry6EMjw6uo6EeVslBPgMJqVxT2z6DKXhW72exQ2aVJ9kar 6cvw== 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; bh=ynW/Pnh4gWUQUPzhDVQ1zF11kBmP0B6r6BzGSRlG0B0=; b=KS7A9rD65pLw4MPBeUpbB42zn+/Blh1ATv1Dw5/TQJjJSW0oDlm+cCw6NKKWchDBV2 /b51dA+v35eO2XjmpMGVqrxIa4Mr/K84m2vSIHckde1p3ew600OD99ylE7EVPfl+PhQ2 EaKROh15zaKv9oeBJclPXtRHiksDchBge7g9tAzO6WcrkRn/oMxcQ2O39NBJ1Mp2OnAV 7LduxcupIAJk6gzPOqFanhtn3ivO0+0/OLLZ24Te6v4jxafEiY3wzKUNJlDHPXtw7Acf o7QvFW+c/bS+UI14pKItBBaO6nuPHUUSsFer22CDW4t+68+7+HopFNmLtEnHC1LjveDT qKyA== X-Gm-Message-State: AKGB3mIKJdvF1lijK8PjrpbzqttFKeFMDWlXZ6PbTE1VclTDoBKS368z b7/2GNlFVGUlQvAadkFD062w9w== X-Google-Smtp-Source: ACJfBos9hoko2TRf691S3jhEErFlDmeMrzpMkr6E1ThYgY8dky48oc5tb64eL1tPanmw2vrxrgDfMg== X-Received: by 10.80.222.1 with SMTP id z1mr58635846edk.277.1514835309410; Mon, 01 Jan 2018 11:35:09 -0800 (PST) Received: from localhost.localdomain (D4CCACC7.cm-2.dynamic.ziggo.nl. [212.204.172.199]) by smtp.gmail.com with ESMTPSA id r8sm29086992edm.22.2018.01.01.11.35.08 (version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Mon, 01 Jan 2018 11:35:08 -0800 (PST) From: Bryan O'Donoghue To: mturquette@baylibre.com, sboyd@codeaurora.org, linux-kernel@vger.kernel.org, linux-clk@vger.kernel.org Cc: Bryan O'Donoghue , Andy Gross , David Brown , Abhishek Sahu , Varadarajan Narayanan , linux-arm-msm@vger.kernel.org, linux-soc@vger.kernel.org Subject: [PATCH v2 22/34] clk: qcom: ipq4019: change clk_cpu_div_round_rate() return logic Date: Mon, 1 Jan 2018 19:34:48 +0000 Message-Id: <1514835300-381-8-git-send-email-pure.logic@nexus-software.ie> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1514835300-381-1-git-send-email-pure.logic@nexus-software.ie> References: <1514835300-381-1-git-send-email-pure.logic@nexus-software.ie> Sender: linux-arm-msm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP This patch updates the round_rate() logic here to return zero instead of a negative number on error. In conjunction with higher-level changes associated with acting on the return value of clk_ops->round_rate() it is then possible to have clk_ops->round_rate() return values from 1 Hz to ULONG_MAX Hz instead of the current limitation of 1 Hz to LONG_MAX Hz. Signed-off-by: Bryan O'Donoghue Cc: Andy Gross Cc: David Brown Cc: Abhishek Sahu Cc: Varadarajan Narayanan Cc: Michael Turquette Cc: Stephen Boyd Cc: linux-arm-msm@vger.kernel.org Cc: linux-soc@vger.kernel.org Cc: linux-clk@vger.kernel.org Cc: linux-kernel@vger.kernel.org --- drivers/clk/qcom/gcc-ipq4019.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/clk/qcom/gcc-ipq4019.c b/drivers/clk/qcom/gcc-ipq4019.c index 804231b..943acbc 100644 --- a/drivers/clk/qcom/gcc-ipq4019.c +++ b/drivers/clk/qcom/gcc-ipq4019.c @@ -1268,7 +1268,7 @@ static unsigned long clk_cpu_div_round_rate(struct clk_hw *hw, f = qcom_find_freq(pll->freq_tbl, rate); if (!f) - return -EINVAL; + return 0; p_hw = clk_hw_get_parent_by_index(hw, f->src); *p_rate = clk_hw_get_rate(p_hw);