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: 10137519 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 6E48B6037D for ; Sat, 30 Dec 2017 01:17:02 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 604362B551 for ; Sat, 30 Dec 2017 01:17:02 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 552A32B55D; Sat, 30 Dec 2017 01:17:02 +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 E63C32B551 for ; Sat, 30 Dec 2017 01:17:01 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1750996AbdL3BQf (ORCPT ); Fri, 29 Dec 2017 20:16:35 -0500 Received: from mail-wm0-f68.google.com ([74.125.82.68]:34994 "EHLO mail-wm0-f68.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751194AbdL3BNg (ORCPT ); Fri, 29 Dec 2017 20:13:36 -0500 Received: by mail-wm0-f68.google.com with SMTP id a79so11266735wma.0 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=Qo7sLbXINTGTmljM+fVwIqrGdflr2DZ8tLh3ryKSXIGy9pL4pMhw0Kkyuo3QD98ool 5QZ0CVbkEK5PxIc0L7Jn6C6iaNs+0uA9OJl4xsEL/oITiZqUfaTIYfik2opG3JK/72+M gKoxYOnc8O8rlnJwsBbbkZzFNlVunqPZUOCKzskbx3qu6kUEJha5gr6SOLCEkdsiUA89 Zl2pIc+r4aF3e71dSoc+JRRDgy4ZQc6aUZREEtVa+Yjk9t//cNnYhT8lmvriwasM21ZB 5BlRaPqceDMpUcLDHSRwRgVgun44wLoJrAQYPCmOuCKLKK+GZqlroWfnJVD1fJTarkHG PB0w== X-Gm-Message-State: AKGB3mIg+KdOBtAIJk5l9trzCdHXlbBYj1In1gHLnwEuiSHBnn+ccXTz 3REKwPw9UtwEqZ9FJUTDlygGZA== 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-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-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; }