From patchwork Sat Dec 30 01:13:07 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: 10137487 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 0A7D46037D for ; Sat, 30 Dec 2017 01:15:37 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id EFCDA29F8D for ; Sat, 30 Dec 2017 01:15:36 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id E24EA29EF3; Sat, 30 Dec 2017 01:15:36 +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 A534229EF3 for ; Sat, 30 Dec 2017 01:15:35 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751237AbdL3BPX (ORCPT ); Fri, 29 Dec 2017 20:15:23 -0500 Received: from mail-wm0-f65.google.com ([74.125.82.65]:39331 "EHLO mail-wm0-f65.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751250AbdL3BNk (ORCPT ); Fri, 29 Dec 2017 20:13:40 -0500 Received: by mail-wm0-f65.google.com with SMTP id i11so50090928wmf.4 for ; Fri, 29 Dec 2017 17:13:40 -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=v1PgtKr/oWPCySan2O3KA4RogDdaaadovuQXiPsBLh0=; b=GBQ4VdY0arloxPe2ykRxbY3+Qrr+UltnHrJDsi5ozYDFNI1vgn1hAfMOjSZXcESN6A mKex65EgOPNVBFmWzlbTwdDrkeVI6J+QgDEzOQo881msNbvVJr8Nwcn00fJB+CrJDsQ2 46aonIan2CmL+96oTE+OlAI6Lsj7pWII8p+SwBBehLjeQan/z70ogARihCd4GtX46yVl 0aR9XRHOToOMQRSCgPR9Ygoy+5dyjfraB6XfX4B1LLgQu/wa2RJCsN68uh3Gbqyxw0Tf er/31aBQQOpX7FPoWBPwSvQV1mAnGK4oCeaAY7INTH0/ociZnIem4Fr6wGpAS3gpmbUj WvUA== 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=v1PgtKr/oWPCySan2O3KA4RogDdaaadovuQXiPsBLh0=; b=q7Eg3nIStLeXwi0bZFWU6eocSwOhmAcLSKxZf71TIh2+i7OpJ/Lyo2h+IpP6s48Hgq 8QlvLRT0x2NA2HdgzyRtZkWAXhdpAdXNk47ts8HcVgQ9tCJmhEwH58Lw3LKg87lpOOHE couidm/E9FYunE/zeg11AIwdx7jG5K2oYQM9RwAcL4JSClh35gjMSvlfKYWLAGcHGOKc W3Pr1V9xCVlC29Ynim32qYa8oU9P19DJiAemk0zgStOG2n430UZQ+XM+Ejqc0Tb5+3CA MQ2RCf6O7O7BvzEPbFZ6cZ+SZjrdARoWpB53D/3hHIwSsDdE53S6Io7zI+T49M54lg8K E/fg== X-Gm-Message-State: AKGB3mLrZcQiiDrfzGpKAkxxXS8gF48M5U381MdtsGRBEqGkfGZNiBIO +BIn7Ls/h5k8fmBZb4Z7kRJlOQ== X-Google-Smtp-Source: ACJfBosF08+Qf6g4Q1anyBeahyG6/Ij6jxqRJ111+uJSoouJX3K8x2qnhv666yoDiVMoz14SHKNx6Q== X-Received: by 10.80.194.194 with SMTP id u2mr46654669edf.260.1514596419608; Fri, 29 Dec 2017 17:13:39 -0800 (PST) Received: from localhost.localdomain ([109.255.42.2]) by smtp.gmail.com with ESMTPSA id h4sm29818268edb.16.2017.12.29.17.13.38 (version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Fri, 29 Dec 2017 17:13:39 -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, Jun Nie , Baoyou Xie , Shawn Guo , linux-arm-kernel@lists.infradead.org Subject: [PATCH 28/33] clk: zte: change zx_audio_round_rate() return logic Date: Sat, 30 Dec 2017 01:13:07 +0000 Message-Id: <1514596392-22270-29-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: Jun Nie Cc: Baoyou Xie Cc: Shawn Guo Cc: Michael Turquette Cc: Stephen Boyd Cc: linux-arm-kernel@lists.infradead.org Cc: linux-clk@vger.kernel.org Cc: linux-kernel@vger.kernel.org --- drivers/clk/zte/clk.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/clk/zte/clk.c b/drivers/clk/zte/clk.c index df91842..6afdc4a 100644 --- a/drivers/clk/zte/clk.c +++ b/drivers/clk/zte/clk.c @@ -247,7 +247,7 @@ static unsigned long zx_audio_round_rate(struct clk_hw *hw, unsigned long rate, u32 reg; if (rate * 2 > *prate) - return -EINVAL; + return 0; reg = calc_reg(*prate, rate); return calc_rate(reg, *prate);