From patchwork Sat Dec 30 01:13:02 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: 10137515 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 6FE056037D for ; Sat, 30 Dec 2017 01:16:50 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 632FA2B551 for ; Sat, 30 Dec 2017 01:16:50 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 583F62B55D; Sat, 30 Dec 2017 01:16:50 +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 DA0552B551 for ; Sat, 30 Dec 2017 01:16:49 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751275AbdL3BQg (ORCPT ); Fri, 29 Dec 2017 20:16:36 -0500 Received: from mail-wm0-f65.google.com ([74.125.82.65]:40864 "EHLO mail-wm0-f65.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751188AbdL3BNg (ORCPT ); Fri, 29 Dec 2017 20:13:36 -0500 Received: by mail-wm0-f65.google.com with SMTP id f206so50078251wmf.5 for ; Fri, 29 Dec 2017 17:13:35 -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=KgNTl/Dodo5IPrfoSwulcA7qPN7AcxiKA17E6kRHUSuqGr7zmoAyRWPcXGxOuHKsPY 9dZPxJAKiEYZPPPT/Sx/slAUNdohY6VbF7Ru3qRAwQIqkTtZKt045rJUzF3XiVR2+YzK o/FNgk/0MZSVbpmUMam1TMB7WUd8Y3qm/Xxn6BtUCKSvX0sPvr3JbWpjGz4UVBIEHaEM p0ijQpw7f1hTMEQ6CNdR4R7ufvpctb3MiwlcDFd696DTBmQTpkUA9d0fPFn3CJ41NkQi OUnaZYCT3ZqIUd7aNqb3IQNKbQctIX+CJhip5kfF0WJsFpkrWdljRuLc3Pox2uzbswqs J0jw== 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=XwXdzxa5XLtTV8M3vdWhoO0rZUJ2Nqp/D6FFXyblDrr4LwhPICTRZK6SgtHfe1MCxj QUG72ncNrQ3o+dZfmHzZ/maGNqvb7t3lw87jREztKtSgyzSsbTSa1ygwcp/NeTbulffG tH0O/+pZ3JCgA5PdWszO1R0obeiKCfydqgb+RTaOanRTMCwvCuX88rqhmZiZbcP7pXnO jihWpNBGXYMOZrsCrk8T2BNZwGb8a+M7p3v2SB0ANGQmMHgsXJ9lqbnE7Xz0Tr3L4phv mQntF+C6mXAPlt6Ie/x8WMZjPg1lyTmywJhcrvlHw7/BMxwV1lKXa5xccxcG43Hryhf4 VzJQ== X-Gm-Message-State: AKGB3mLVmdZzImx2k1levV1QBfLtGm2x6r910/WkjDATvkaTW+iS6RIi ZWpTnP0Ionn0W1X9lthX/JoQYQ== X-Google-Smtp-Source: ACJfBouwCHAWgd107QgF0NJLsEfL5PouyGBTCxPXolXl6R5lk8R2iLBes01qHi03/q8N03+majL9Ow== X-Received: by 10.80.173.20 with SMTP id y20mr46545322edc.23.1514596414896; Fri, 29 Dec 2017 17:13:34 -0800 (PST) Received: from localhost.localdomain ([109.255.42.2]) by smtp.gmail.com with ESMTPSA id h4sm29818268edb.16.2017.12.29.17.13.34 (version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Fri, 29 Dec 2017 17:13:34 -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, Peter De Schrijver , Prashant Gaikwad , Thierry Reding , Jonathan Hunter , linux-tegra@vger.kernel.org Subject: [PATCH 23/33] clk: tegra: change clk_sync_source_round_rate() return logic Date: Sat, 30 Dec 2017 01:13:02 +0000 Message-Id: <1514596392-22270-24-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: 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; }