From patchwork Sat Dec 30 01:13:00 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Bryan O'Donoghue X-Patchwork-Id: 10137537 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 43E136037D for ; Sat, 30 Dec 2017 01:17:51 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 3644E2B551 for ; Sat, 30 Dec 2017 01:17:51 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 2B2492B55D; Sat, 30 Dec 2017 01:17:51 +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 C9ABB2B551 for ; Sat, 30 Dec 2017 01:17:50 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751272AbdL3BRg (ORCPT ); Fri, 29 Dec 2017 20:17:36 -0500 Received: from mail-wm0-f65.google.com ([74.125.82.65]:44184 "EHLO mail-wm0-f65.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751096AbdL3BNe (ORCPT ); Fri, 29 Dec 2017 20:13:34 -0500 Received: by mail-wm0-f65.google.com with SMTP id t8so50418116wmc.3 for ; Fri, 29 Dec 2017 17:13:33 -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=uSF11Yb0FS4MLqh6jayLJcX7UKOhP3m00DfHrUR099/o7iAEbasj9hrngNkitOg7jc wNrdGNR3cjCSc9TzPp52D2mjkg2MJsIP7WfEEwhTDd83GtgBr9+H2cIQYVggnQe3544Q Ip5G0J4UbDWLkXrS4ED3Hp9gL8QS6QMLnV1i0jCOioZNu3v84bvasSgY7kfD9YumSR2a ukZJUZobiLirjon5LApQ3gyZJF7LbIgxVJxQ/1le0AULTTZsz7C20pB2rzUIcCX+mJCr h3mjVmfT0OAVbSCFCV5y+Vv0u/AOsiXk31nxVWivc+Stw8Yj4EwRa7hO6ohwIV0H0Rck GbNQ== 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=F1oyCDigZ3ribd6nqTjToEzl+HEdtAMoo6GQEmrKESVyyXVleCTymGLpdvXsVIBHHg e8pNcXVNG838oWTq8eEuuSAnG7SeUVJBfhtxy/PKJhwCUzcE2D2t+dYl0StiLbM62aOz YTv+6Py4iiDQ0P1txfHbsymdhqkM74H5A7qMU335z5EwHzwugUWs5ZBjjh+5m5BvlZt0 0NJmsYlUQ9WKaUdefAWnVOvd7MqCBLVnD9LXRMPttawpYOmt5t1hrdbTZ2NtyA0v1lhz ZdvyaqgW9Rk/3BKk9TvhvOqxpzwADn+s8TdeLm+MgX0cVA6PXyXE6aW5t1YHW6T5pgnA bwdQ== X-Gm-Message-State: AKGB3mKJgPJ2nk+dKu9bNj4FyDLLrGZmKK2vaQlP3Oyk+oNtxTxx+hke kpHaOMFQs2Pdsu427RymXoz9wA== X-Google-Smtp-Source: ACJfBou2YukTnliUwjcIspe4GNbWCD8IwDKNAF3YrAkbhW5Lk8N9ZvqsXSVWk9lKx+NOISYUoWh5+w== X-Received: by 10.80.201.12 with SMTP id o12mr46856561edh.90.1514596413029; Fri, 29 Dec 2017 17:13:33 -0800 (PST) Received: from localhost.localdomain ([109.255.42.2]) by smtp.gmail.com with ESMTPSA id h4sm29818268edb.16.2017.12.29.17.13.31 (version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Fri, 29 Dec 2017 17:13:32 -0800 (PST) From: Bryan O'Donoghue To: mturquette@baylibre.com, sboyd@codeaurora.org, linux-kernel@vger.kernel.org, linux-clk@vger.kernel.org Cc: pure.logic@nexus-software.ie, Andy Gross , David Brown , Abhishek Sahu , Varadarajan Narayanan , linux-arm-msm@vger.kernel.org, linux-soc@vger.kernel.org Subject: [PATCH 21/33] clk: qcom: ipq4019: change clk_cpu_div_round_rate() return logic Date: Sat, 30 Dec 2017 01:13:00 +0000 Message-Id: <1514596392-22270-22-git-send-email-pure.logic@nexus-software.ie> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1514596392-22270-1-git-send-email-pure.logic@nexus-software.ie> References: <1514596392-22270-1-git-send-email-pure.logic@nexus-software.ie> Sender: linux-clk-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-clk@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);