From mboxrd@z Thu Jan 1 00:00:00 1970 From: Soren Brinkmann Subject: [PATCH 2/4] cpufreq: cpu0: Use clk_find_nearest_rate() Date: Mon, 30 Jun 2014 09:56:34 -0700 Message-ID: <1404147396-8041-3-git-send-email-soren.brinkmann@xilinx.com> References: <1404147396-8041-1-git-send-email-soren.brinkmann@xilinx.com> Return-path: DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=sender:from:to:cc:subject:date:message-id:in-reply-to:references; bh=jIO29o2LDwjp6XUm8NsCMrsjT+A/Y4p2sYeDVG0aRes=; b=hM82ws13TUSAfzOkPBixL1k4PUJbjq5mUO9zFPJdf08+gMm41PI9kZxmMB6XIWgYxZ NzE2f1zAOol+77B0FkIa9/9J5OQo/WanDqURkzt7Qh2hF+FxiDoiHqy9nct16OnM/r+l CK1ueOq+sypnxx7IKhsbLu3qH3jXiLI47TthZTu8NeO6srMf1XHx05hpba7DJlC9TNU3 tZlIS2fr/qbiQL9CdNK2Xm/lw8of9RzgMqtB/Hg4g3ENExHyPYW+SK+IOpcbV3nJ/QrH iX8cQtMUC8QojsPNi2b193AsIIcQ5t2TNATWBuGWXmaWDPj1RdBcJpgtPbhb4fM9NqJp LL5A== In-Reply-To: <1404147396-8041-1-git-send-email-soren.brinkmann@xilinx.com> Sender: linux-pm-owner@vger.kernel.org List-ID: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: Mike Turquette , "Rafael J. Wysocki" , Viresh Kumar Cc: Russell King , Michal Simek , Nicolas Ferre , =?UTF-8?q?Uwe=20Kleine-K=C3=B6nig?= , linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org, cpufreq@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Soren Brinkmann Round clock frequencies to the nearest possible frequency. Since the OPPs as specified in DT and the CCF use different a resolution for clock frequencies, the clk_round_rate() API may return unexpected results, due to not mandating how rounding has to happen. The clk_find_nearest_rate() API mitigates such issues and finds the appropriate frequency for an OPP. Signed-off-by: Soren Brinkmann --- drivers/cpufreq/cpufreq-cpu0.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/cpufreq/cpufreq-cpu0.c b/drivers/cpufreq/cpufreq-cpu0.c index ee1ae303a07c..1650581f85b6 100644 --- a/drivers/cpufreq/cpufreq-cpu0.c +++ b/drivers/cpufreq/cpufreq-cpu0.c @@ -42,7 +42,8 @@ static int cpu0_set_target(struct cpufreq_policy *policy, unsigned int index) long freq_Hz, freq_exact; int ret; - freq_Hz = clk_round_rate(cpu_clk, freq_table[index].frequency * 1000); + freq_Hz = clk_find_nearest_rate(cpu_clk, + freq_table[index].frequency * 1000); if (freq_Hz <= 0) freq_Hz = freq_table[index].frequency * 1000; -- 2.0.1.1.gfbfc394