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: 854352 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=none (mailfrom) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=linux-tegra-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=nexus-software-ie.20150623.gappssmtp.com header.i=@nexus-software-ie.20150623.gappssmtp.com header.b="Y8Ar/BzB"; dkim-atps=neutral Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 3z9SCL2dz7z9sRW for ; Tue, 2 Jan 2018 06:37:50 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753161AbeAATht (ORCPT ); Mon, 1 Jan 2018 14:37:49 -0500 Received: from mail-wm0-f66.google.com ([74.125.82.66]:43017 "EHLO mail-wm0-f66.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753116AbeAATfM (ORCPT ); Mon, 1 Jan 2018 14:35:12 -0500 Received: by mail-wm0-f66.google.com with SMTP id n138so58243237wmg.2 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=f03QXaSIIHWa2V+ewbicVnrivViUzOpebUq5jgc1LICPRl3ZaRSBrvQUIHKkMppe7J jSJ4+mEc2YAfuzJEeTdxsdDh037WdLFKsKUvDAJ60wSQJD9Ickr17ZXABBmg5KGy4OrQ WPyOf0c8U8QrOmLM16riw4VOWLLOpIPF2EjegpsQ+bbW3IL4AEPE+N8hWdJyi8OiCLda heZhnAT3Jbjg0V4DlNTzFaecZDzmZQYMbLyNZ/eFJ1nxz2PnQpz6fqfKfGECUHFe4I0X YXEa4Uj2HCJGgn5dsVFA5ou50o8TFZZkpCL2m5ZrzWLZ+fME6It1WzdhLZMbc9FKUHD5 0NhQ== X-Gm-Message-State: AKGB3mLaukmDBKMvRhcstBmLUQIHYPzXWJdFur0k9fYdNyOQKi1Vroly RlwPq7RDgD++bk5mOLWYtGVmow== 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-tegra-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-tegra@vger.kernel.org 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; }