From patchwork Mon Jan 1 19:43:03 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: 854357 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="Nuagkvp3"; dkim-atps=neutral Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 3z9SNc3cKFz9t2Q for ; Tue, 2 Jan 2018 06:45:52 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932308AbeAATpu (ORCPT ); Mon, 1 Jan 2018 14:45:50 -0500 Received: from mail-wm0-f66.google.com ([74.125.82.66]:36045 "EHLO mail-wm0-f66.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932160AbeAATnl (ORCPT ); Mon, 1 Jan 2018 14:43:41 -0500 Received: by mail-wm0-f66.google.com with SMTP id b76so58253552wmg.1 for ; Mon, 01 Jan 2018 11:43:40 -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=TybqIDB2DTOG7XOOXKmW/XxBgKjjqbvwu1nfj2OfIPo=; b=Nuagkvp36Ox5a2B3DdooA7G+1CEplJqnWpK7kfnxxdMHqjSDdE+5X2vyFWiTlO04FF 1jlszcUyjudmO4Goj5wKx/4k7ir6F9vpbKPPA7yVY5sw9IgRa/UvSHW/u5tbFxqlsgS9 HQXbgOso4vsBgC9QaNPGgsz/m9yoAMBiLKGIyTK3Aehss8+uUYiv14yL6jmrj7R35NK5 /MQkXmddrz/QZMdieSQiH/qCWQgaSWD1j7NRSLgvWS/RhveDP1ySDKq8BaOCmd886cxZ lt7FLkXbTElMwNWvLmNj8VaNDdZoa5QMowFxpn4qYpC0yp8UScVhvlb0iMAm31cN3Qoj /7nQ== 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=XNwAbhFuwdSliitEw7U5kY+oJBgaqP/95VJVvHuAV0u0vnMjqSbg58/VP7kE0BM5LG eC33QTQq4CCY2EdbOxzaq1xOEtzzFtr+UjzbWOaVARqzGjSqN7nJPY9X1b9lR7NpfRF0 NkwSkNRW1S3BP/EQaFCu0W5bMyrY3ytpOLWxA3RDHKX17iWC3lYeRdEvvh1mJnwI0nor 5if+fBvX6bDIUO2dmaTx9fHQFVslN82GQsxt8XGQ97USEQ0SCK2Q9pAPZ9OzxTRnd7lR x+4QHMcMEM0eqcqZOsUj/seyGIQLd9RTWYAFyHgMGS6V2kwbfaFHuUGGC4mv2Fn3wRS0 OgVg== X-Gm-Message-State: AKGB3mINvLMebNkn+aAYkzTiZbLIR7x/733dh0/3e2XRziiKtc1dFLhg 6ZRs4KUzjwOwW7aX/f016ZTqig== X-Google-Smtp-Source: ACJfBouwBkTzx5BPqxPbTwcjR+Wmj4xOrwnRZLRNtcR7ebuFJDKYi6jJcD9JUarOVQ0t5t7ZckGwWQ== X-Received: by 10.80.155.13 with SMTP id o13mr60567192edi.39.1514835820032; Mon, 01 Jan 2018 11:43:40 -0800 (PST) Received: from localhost.localdomain (D4CCACC7.cm-2.dynamic.ziggo.nl. [212.204.172.199]) by smtp.gmail.com with ESMTPSA id w2sm39361075edb.4.2018.01.01.11.43.39 (version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Mon, 01 Jan 2018 11:43:39 -0800 (PST) From: Bryan O'Donoghue To: mturquette@baylibre.com, sboyd@codeaurora.org, linux-kernel@vger.kernel.org, linux-clk@vger.kernel.org Cc: Bryan O'Donoghue , Peter De Schrijver , Prashant Gaikwad , Thierry Reding , Jonathan Hunter , linux-tegra@vger.kernel.org Subject: [PATCH v3 24/34] clk: tegra: change clk_sync_source_round_rate() return logic Date: Mon, 1 Jan 2018 19:43:03 +0000 Message-Id: <1514835793-1104-25-git-send-email-pure.logic@nexus-software.ie> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1514835793-1104-1-git-send-email-pure.logic@nexus-software.ie> References: <1514835793-1104-1-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; }