From patchwork Mon Jan 1 19:34:50 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: 10139343 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 DC01A60362 for ; Mon, 1 Jan 2018 19:38:01 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id CDE4D285C9 for ; Mon, 1 Jan 2018 19:38:01 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id C2B48285E6; Mon, 1 Jan 2018 19:38:01 +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 4120B285C9 for ; Mon, 1 Jan 2018 19:38:01 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753475AbeAATht (ORCPT ); Mon, 1 Jan 2018 14:37:49 -0500 Received: from mail-wm0-f68.google.com ([74.125.82.68]:46603 "EHLO mail-wm0-f68.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753114AbeAATfM (ORCPT ); Mon, 1 Jan 2018 14:35:12 -0500 Received: by mail-wm0-f68.google.com with SMTP id r78so58587724wme.5 for ; Mon, 01 Jan 2018 11:35:12 -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=TybqIDB2DTOG7XOOXKmW/XxBgKjjqbvwu1nfj2OfIPo=; b=Y8Ar/BzBrvhYiZz/xQ1+4m8Qv6+sVln4546JjOO5dBHsCGadZnX1FU5OOhy8Fwbq2Q 3HM0+Rra2zioYgBWPFtqISOKiT6RamX4W4TTw2SIEx5TjoTtsIA3h4iQXNJQCoQkZbdX P4IXbN/buyLa9ZxxcOvBuIc1nhgsyvp3Wx2Se4kux19kktHs+aaZ+ORpHItgFsHjy1VO jW/nRH/tG1vzrDOIE41rACfIil3hRoxkKqvdiW/AZXkOupsRbv344xXZArWkQA2tFykf 2IyaOdn4iomy/ONzcuUOjqdQhJU+pCqDQnBTQ9NNEyJLmURmZanMEUb+RglWfdZnXlSX srVQ== 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=TybqIDB2DTOG7XOOXKmW/XxBgKjjqbvwu1nfj2OfIPo=; b=bo02jzt0pB+03Yba2c2lrMXSPbXYp1fM8sTZyFemM7Smz3rVG6H7zJx/vKnBtAr3W9 fXoQox0eCdd8cPmbt+J8K1i4GkF7V8uoPjUXy+GjBRbhtLv4zh6Q9S6RIj1JkiAJwg1g ByWvUG69BVXDBfildocurVJUDQNsYqoasx5NnuNydF4T9CkLBwYboO04+MpkbCF+rRuV S8bTmE5WG0hLDHubS0wyi1TtWHrh4bNKxBqOtXyj8tUkJwDF0pr+Sx9QSJrnEvCCRmeo pS5tPvA4SyJi/ooNHUf4lbiYY6R1V15GwwvmmQMVqzlypmgX1KKnMtv/G/pgv3EyjoZM mr4g== X-Gm-Message-State: AKGB3mJE1SDzAkudM7WqdGwz3CybLUWI7EIUEMzTwkPTjHdMIJXOZ33d TcvH6A06deHtY8/Arwrx3qdQlQ== X-Google-Smtp-Source: ACJfBoumRV8e4OLjhfkgWhHtYd5nFZNnyMpj8KbLmpIt2vXcLI3jYYBM503r+cQNKByExQCwFIlEpA== X-Received: by 10.80.177.1 with SMTP id k1mr59266310edd.41.1514835311513; Mon, 01 Jan 2018 11:35:11 -0800 (PST) Received: from localhost.localdomain (D4CCACC7.cm-2.dynamic.ziggo.nl. [212.204.172.199]) by smtp.gmail.com with ESMTPSA id r8sm29086992edm.22.2018.01.01.11.35.10 (version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Mon, 01 Jan 2018 11:35:10 -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 , Peter De Schrijver , Prashant Gaikwad , Thierry Reding , Jonathan Hunter , linux-tegra@vger.kernel.org Subject: [PATCH v2 24/34] clk: tegra: change clk_sync_source_round_rate() return logic Date: Mon, 1 Jan 2018 19:34:50 +0000 Message-Id: <1514835300-381-10-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-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: Peter De Schrijver Cc: Prashant Gaikwad Cc: Michael Turquette Cc: Stephen Boyd Cc: Thierry Reding Cc: Jonathan Hunter Cc: linux-clk@vger.kernel.org Cc: linux-tegra@vger.kernel.org Cc: linux-kernel@vger.kernel.org --- drivers/clk/tegra/clk-audio-sync.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/clk/tegra/clk-audio-sync.c b/drivers/clk/tegra/clk-audio-sync.c index 9784d58..5fd825b 100644 --- a/drivers/clk/tegra/clk-audio-sync.c +++ b/drivers/clk/tegra/clk-audio-sync.c @@ -35,7 +35,7 @@ static unsigned long clk_sync_source_round_rate(struct clk_hw *hw, struct tegra_clk_sync_source *sync = to_clk_sync_source(hw); if (rate > sync->max_rate) - return -EINVAL; + return 0; else return rate; }