From patchwork Mon Jan 1 19:34:51 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: 854350 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="rH6JJJHt"; dkim-atps=neutral Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 3z9S9g0gtLz9sRW for ; Tue, 2 Jan 2018 06:36:23 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753180AbeAATfT (ORCPT ); Mon, 1 Jan 2018 14:35:19 -0500 Received: from mail-wm0-f68.google.com ([74.125.82.68]:32996 "EHLO mail-wm0-f68.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753144AbeAATfN (ORCPT ); Mon, 1 Jan 2018 14:35:13 -0500 Received: by mail-wm0-f68.google.com with SMTP id g130so14001704wme.0 for ; Mon, 01 Jan 2018 11:35:13 -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=Mjwr+zwlebZvKtjtAoUCfZgqQupxl6iX4Q5QW2mjZnk=; b=rH6JJJHtnkYnPIborEtYf7HShZjmQ9SZTvXklwUI6ZNQxYqNIaBxhk7ZVEs/Dfw5jO DoXM06Bun57DpBFfgfkJrfohfTbXmc2Q2Sx1xdQFVMjmJ87b0vmNZC6AMfuD/Fi1Ax1r kJXaQgXTTzuLDgixpnKxDLlUp4CjN9L84W+UE3lze7OF5b66xwu+lDItDcb1BNN+WX8Z w78Dz4ScyRpl4dPTdG2wDaWPexQ3hlrCjvil0Qm4FzOxfAf2qMEI96r/fFaIbLAOyN98 DGSWFZGQoDfTcM8POCPhbPrPBqddkJjDj3nbEyanz2zjRr421x7jHfqzW4FwWgv2MLEO 2T1g== 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=Mjwr+zwlebZvKtjtAoUCfZgqQupxl6iX4Q5QW2mjZnk=; b=VVmNv6NgrR4D51JMYoSO0Wrt3VcLbtRdwB8rAD/IVNMXcZtKCJMl51sa1XMaFvAlXV 6pQQz7hvXwfbsViXg0mEWDpYMFGLLkAXlRYTwitdv3A9PK50QHzK5JOsGFaRMKBNz3Jd 6ooQbEqqxssXReIgXFTqmIrWi1tGcRTkI0Y+XPfj1YFVVgO5TN4ns33yLM05MEu55pVN f7PBilm94itvYcE90byfNQTSS8eD5d4YKKkgk2SNdzNAne+EYy6VkOPengJIuvTFVHUf HXPSkdeRixIt2tmAXwQfdR9IcZfq+yZJ1gKDyKJfjw7dbFCclUPQvxe7XrYztpp0TC/4 gb0A== X-Gm-Message-State: AKGB3mKTslcNIJKRVK2cRO5EcAcPC942Xq1djCeWwxbj3/2mpxaAoyIm K/ayjTA2zgI3BUsPZqd10/TZVA== X-Google-Smtp-Source: ACJfBosp5u07GBtQUN220NtvsJC1I5M/qYJ6XU3+Q3bfIfLi7fJfaWQrlG/aFtmzsvZkOoozUqbqHQ== X-Received: by 10.80.192.5 with SMTP id r5mr41109742edb.138.1514835312592; Mon, 01 Jan 2018 11:35:12 -0800 (PST) Received: from localhost.localdomain (D4CCACC7.cm-2.dynamic.ziggo.nl. [212.204.172.199]) by smtp.gmail.com with ESMTPSA id r8sm29086992edm.22.2018.01.01.11.35.11 (version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Mon, 01 Jan 2018 11:35:12 -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 25/34] clk: tegra: bpmp: change tegra_bpmp_clk_round_rate() return logic Date: Mon, 1 Jan 2018 19:34:51 +0000 Message-Id: <1514835300-381-11-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-bpmp.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/clk/tegra/clk-bpmp.c b/drivers/clk/tegra/clk-bpmp.c index 0c1197b..4297bb2 100644 --- a/drivers/clk/tegra/clk-bpmp.c +++ b/drivers/clk/tegra/clk-bpmp.c @@ -190,7 +190,7 @@ static unsigned long tegra_bpmp_clk_round_rate(struct clk_hw *hw, err = tegra_bpmp_clk_transfer(clk->bpmp, &msg); if (err < 0) - return err; + return 0; return response.rate; }