From patchwork Sat Dec 30 01:13:08 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: 10137481 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 C84186037D for ; Sat, 30 Dec 2017 01:15:18 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 8AFD72D23A for ; Sat, 30 Dec 2017 01:15:18 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 7FD292D245; Sat, 30 Dec 2017 01:15:18 +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 2F49E2D23A for ; Sat, 30 Dec 2017 01:15:18 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751094AbdL3BPF (ORCPT ); Fri, 29 Dec 2017 20:15:05 -0500 Received: from mail-wm0-f67.google.com ([74.125.82.67]:36137 "EHLO mail-wm0-f67.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751251AbdL3BNl (ORCPT ); Fri, 29 Dec 2017 20:13:41 -0500 Received: by mail-wm0-f67.google.com with SMTP id b76so50413684wmg.1 for ; Fri, 29 Dec 2017 17:13:41 -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=QvbVzzDzCpL3/hWMBRDr5/qRLVgrhls+vhNSUzVIiuA=; b=zmocOf7STWYz6p16KQcSlsSxsCJ/8spkrpThFLwpPyB3Icg+FZO2wTdUoz+XgFu9FX RNq2nPKkMR27y/ESMn2/2nvSzkZmx92fzaLdSBxvC+fhpyJJ2FgSpKnpiuX/QJX1IbZs Cal3FXiEayHqB4h+47c+z02xxz0NJmF7fjrMEGku5HnSlQkRyKqlQMs6+rBIUVzsi9p9 liQwg25hjR7U0f2XKhNnsFqGTggysmE7BicdXL77E9RlhvP2YywLz5WMu8+nZ55J5BBH 4PDQKEcr//XqeJJXyBxICcoxsVqhw/h5YgxIfRi7eSvzIUamkBEBOLfljtPhNFEB/cr8 WDMw== 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=QvbVzzDzCpL3/hWMBRDr5/qRLVgrhls+vhNSUzVIiuA=; b=hd6ursAAhAY7UdNGQ0aES4RZDFj99zWubuSBziWZhHvsy2fck2PsaifO9uGSOLhcts FcxNLRMhCIjtP11xPu8SR9sTc9kaQsrprA5WBdlse/b5FALt0rGOPWH6Yj2iKoAlWqSc 1h7Uh312KRwnWdREY9s5pXeG33huAEw8bEnyQ6rv+cjp9/+1684DiY7AXw1T9mfCaAS1 uTi5b5I5K/ClpQBevzzcyDdF2TrVFk0tABfbVjJBtRD3xQQOW7FYNcZk9JCGOLiLTKmd YOAZ1IxyerihuhnhzwiGysv5jSJPl8UkBHOkqu4L6r869DGfjoTWHIyCXaYGL5eTJjXv banQ== X-Gm-Message-State: AKGB3mL/d32x4xtVv7WlJZzqWsPcvMbY+JKeGT2thoB6kkkBhxdVx50q 0PslQR9Yrs3CfbLBWn1YLRFHmQ== X-Google-Smtp-Source: ACJfBouItx981g769tMpLYAhzl53CQz+Z94csWUyzTSW06WpmNb0p/pbut30MvKfP5NPF9IbilMPog== X-Received: by 10.80.134.135 with SMTP id r7mr48573525eda.241.1514596420710; Fri, 29 Dec 2017 17:13:40 -0800 (PST) Received: from localhost.localdomain ([109.255.42.2]) by smtp.gmail.com with ESMTPSA id h4sm29818268edb.16.2017.12.29.17.13.39 (version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Fri, 29 Dec 2017 17:13:40 -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, Eugeniy Paltsev Subject: [PATCH 29/33] clk: axs10x: change axs10x_pll_round_rate return logic Date: Sat, 30 Dec 2017 01:13:08 +0000 Message-Id: <1514596392-22270-30-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: Eugeniy Paltsev Cc: Michael Turquette Cc: Stephen Boyd Cc: linux-clk@vger.kernel.org Cc: linux-kernel@vger.kernel.org --- drivers/clk/axs10x/pll_clock.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/clk/axs10x/pll_clock.c b/drivers/clk/axs10x/pll_clock.c index 27498eb..e90ae9e 100644 --- a/drivers/clk/axs10x/pll_clock.c +++ b/drivers/clk/axs10x/pll_clock.c @@ -162,7 +162,7 @@ static unsigned long axs10x_pll_round_rate(struct clk_hw *hw, const struct axs10x_pll_cfg *pll_cfg = clk->pll_cfg; if (pll_cfg[0].rate == 0) - return -EINVAL; + return 0; best_rate = pll_cfg[0].rate;