Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751269AbdL3BNm (ORCPT ); Fri, 29 Dec 2017 20:13:42 -0500 Received: from mail-wm0-f65.google.com ([74.125.82.65]:37821 "EHLO mail-wm0-f65.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751023AbdL3BNZ (ORCPT ); Fri, 29 Dec 2017 20:13:25 -0500 X-Google-Smtp-Source: ACJfBovkJH5hBg/m1JEZojfce1e19O9j2ENwYDYPSdGj6OVjuyB1qjvgRCcbxXWgffsQUtcwajM1kQ== 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, Ray Jui , Scott Branden , Jon Mason , bcm-kernel-feedback-list@broadcom.com, linux-arm-kernel@lists.infradead.org Subject: [PATCH 11/33] clk: bcm: iproc: change iproc_pll_round_rate() return logic Date: Sat, 30 Dec 2017 01:12:50 +0000 Message-Id: <1514596392-22270-12-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: 1623 Lines: 46 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: Michael Turquette Cc: Stephen Boyd Cc: Ray Jui Cc: Scott Branden Cc: Jon Mason Cc: bcm-kernel-feedback-list@broadcom.com Cc: linux-clk@vger.kernel.org Cc: linux-arm-kernel@lists.infradead.org Cc: linux-kernel@vger.kernel.org --- drivers/clk/bcm/clk-iproc-pll.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/clk/bcm/clk-iproc-pll.c b/drivers/clk/bcm/clk-iproc-pll.c index b5399b2..54e914c 100644 --- a/drivers/clk/bcm/clk-iproc-pll.c +++ b/drivers/clk/bcm/clk-iproc-pll.c @@ -439,7 +439,7 @@ static unsigned long iproc_pll_round_rate(struct clk_hw *hw, unsigned long rate, struct iproc_pll *pll = clk->pll; if (rate == 0 || *parent_rate == 0 || !pll->vco_param) - return -EINVAL; + return 0; for (i = 0; i < pll->num_vco_entries; i++) { if (rate <= pll->vco_param[i].rate) @@ -541,7 +541,7 @@ static unsigned long iproc_clk_round_rate(struct clk_hw *hw, unsigned long rate, unsigned int div; if (rate == 0 || *parent_rate == 0) - return -EINVAL; + return 0; if (rate == *parent_rate) return *parent_rate; -- 2.7.4