From patchwork Sat Dec 30 01:13:03 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: 854035 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="oZwqFOh4"; dkim-atps=neutral Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 3z7lt63LNfz9sNx for ; Sat, 30 Dec 2017 12:17:02 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1750978AbdL3BQe (ORCPT ); Fri, 29 Dec 2017 20:16:34 -0500 Received: from mail-wm0-f66.google.com ([74.125.82.66]:36127 "EHLO mail-wm0-f66.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751193AbdL3BNg (ORCPT ); Fri, 29 Dec 2017 20:13:36 -0500 Received: by mail-wm0-f66.google.com with SMTP id b76so50413538wmg.1 for ; Fri, 29 Dec 2017 17:13:36 -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=oZwqFOh4IPuV5rxlOP7SzOCnpNYJXc8J/V/BqBfi84Clb6wKt6q5JCg+ci8Dn+DyYr DsXajFKcSgAzAuiRgTwSz25/wmQBp7m26ndVyLD9SeJ++i1q6KzRN55VIdgd/cjzHoD7 /1g6KBG6FZheNCrcdLx/T5sigDgSip0PeOMZTKRMJjZH00PXYNNLuF18SVTl3G2PLtHN 58jE4B83OIVn/tOyiYmRwXqQtupfpsgAJegykdvnnWRNUPoyYt61Spf7Pz6WoKUDZ+ez gcbvKUSMrv6f4p93BM5zNtNpu1/IK6g0EGZjO972hFjTLaVh2w82vNl8nx7JXfXK9AS+ A6+Q== 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=TFqUhFF79SElj2T5e6t4sGFykFNnFbyIAarpxlgQTBi+iCQfd46y/LsoN0KCHsCcOY iaLC9ud3pK+l94sQNz63bPRJ6Mq3kNWp9B7XMIRQBLIYp5QhKiciUxwILb6SSokPYnW5 bFeJXWla9mNZXX1pZzf16aoLxJAYo+dEm4tx/edJ6INAeeqhDEnmWILDVGDiJUt0+gSX ToD4/KqZz+TZps0xCzcrk/+S8sUMoToweoiIRw/+KC9D1Xh+/VZMcSf3GS3tgfWm87SH wxPRe1zwb9e7TaXwKrFJdkYMOwibgl5sUk/IUFcSo9hh0dCcgxv1KxWNVpojHynKdPpH Uc3Q== X-Gm-Message-State: AKGB3mK11+/WCL+4y8ZY3Yi5dAAJDUaii2JLceZSzweApz1mXzaKWZ1x nLF753V47D95jl9RDIpRFVjvhQ== X-Google-Smtp-Source: ACJfBoutqoa1jaTXUKLzNEeYCVwzMs9UunCtNLwG7jiqop37eZHucYkpBb9lK08E0WJvsQIro6e7ig== X-Received: by 10.80.214.202 with SMTP id l10mr45662139edj.58.1514596415828; Fri, 29 Dec 2017 17:13:35 -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 17:13:35 -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 24/33] clk: tegra: bpmp: change tegra_bpmp_clk_round_rate() return logic Date: Sat, 30 Dec 2017 01:13:03 +0000 Message-Id: <1514596392-22270-25-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-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; }