Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751408AbdL3BPX (ORCPT ); Fri, 29 Dec 2017 20:15:23 -0500 Received: from mail-wm0-f66.google.com ([74.125.82.66]:38052 "EHLO mail-wm0-f66.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751247AbdL3BNk (ORCPT ); Fri, 29 Dec 2017 20:13:40 -0500 X-Google-Smtp-Source: ACJfBosF08+Qf6g4Q1anyBeahyG6/Ij6jxqRJ111+uJSoouJX3K8x2qnhv666yoDiVMoz14SHKNx6Q== 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, Jun Nie , Baoyou Xie , Shawn Guo , linux-arm-kernel@lists.infradead.org Subject: [PATCH 28/33] clk: zte: change zx_audio_round_rate() return logic Date: Sat, 30 Dec 2017 01:13:07 +0000 Message-Id: <1514596392-22270-29-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-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1197 Lines: 36 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: Jun Nie Cc: Baoyou Xie Cc: Shawn Guo Cc: Michael Turquette Cc: Stephen Boyd Cc: linux-arm-kernel@lists.infradead.org Cc: linux-clk@vger.kernel.org Cc: linux-kernel@vger.kernel.org --- drivers/clk/zte/clk.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/clk/zte/clk.c b/drivers/clk/zte/clk.c index df91842..6afdc4a 100644 --- a/drivers/clk/zte/clk.c +++ b/drivers/clk/zte/clk.c @@ -247,7 +247,7 @@ static unsigned long zx_audio_round_rate(struct clk_hw *hw, unsigned long rate, u32 reg; if (rate * 2 > *prate) - return -EINVAL; + return 0; reg = calc_reg(*prate, rate); return calc_rate(reg, *prate); -- 2.7.4