Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751383AbdL3BOs (ORCPT ); Fri, 29 Dec 2017 20:14:48 -0500 Received: from mail-wm0-f67.google.com ([74.125.82.67]:41183 "EHLO mail-wm0-f67.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751267AbdL3BNm (ORCPT ); Fri, 29 Dec 2017 20:13:42 -0500 X-Google-Smtp-Source: ACJfBosmhEqs14dm1MCLpabfzq4PNiXU7Wc2yVVP07/WHs/p1X8LL+LmHZuBBqoL9UCMkthDcq1u8A== 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, Boris Brezillon , Quentin Schulz Subject: [PATCH 30/33] clk: at91: change round_rate() return logic Date: Sat, 30 Dec 2017 01:13:09 +0000 Message-Id: <1514596392-22270-31-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: 1599 Lines: 43 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: Boris Brezillon Cc: Michael Turquette Cc: Stephen Boyd Cc: Quentin Schulz Cc: linux-clk@vger.kernel.org Cc: linux-kernel@vger.kernel.org --- drivers/clk/at91/clk-audio-pll.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/clk/at91/clk-audio-pll.c b/drivers/clk/at91/clk-audio-pll.c index 56227cb..48231e3 100644 --- a/drivers/clk/at91/clk-audio-pll.c +++ b/drivers/clk/at91/clk-audio-pll.c @@ -278,7 +278,7 @@ static unsigned long clk_audio_pll_pad_round_rate(struct clk_hw *hw, unsigned long *parent_rate) { struct clk_hw *pclk = clk_hw_get_parent(hw); - long best_rate = -EINVAL; + unsigned long best_rate = 0; unsigned long best_parent_rate; unsigned long tmp_qd; u32 div; @@ -330,7 +330,7 @@ static unsigned long clk_audio_pll_pmc_round_rate(struct clk_hw *hw, unsigned long *parent_rate) { struct clk_hw *pclk = clk_hw_get_parent(hw); - long best_rate = -EINVAL; + unsigned long best_rate = 0; unsigned long best_parent_rate = 0; u32 tmp_qd = 0, div; long tmp_rate; -- 2.7.4