From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932073Ab3G3ITN (ORCPT ); Tue, 30 Jul 2013 04:19:13 -0400 Received: from mailout1.w1.samsung.com ([210.118.77.11]:38486 "EHLO mailout1.w1.samsung.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754524Ab3G3IR6 (ORCPT ); Tue, 30 Jul 2013 04:17:58 -0400 X-AuditID: cbfec7f5-b7f376d000001ec6-b9-51f776b359ef From: Konstantin Krivyakin To: linux-kernel@vger.kernel.org, rjw@sisk.pl, viresh.kumar@linaro.org, mingo@redhat.com, peterz@infradead.org, kgene.kim@samsung.com, linux-pm@vger.kernel.org Cc: k.krivyakin@samsung.com, i.zhbanov@samsung.com, e.voevodin@samsung.com, kyungmin.park@samsung.com, akpm@linux-foundation.org Subject: [PATCH RFC 3/3] Update current cpu power when cpu freq change for exynos. Date: Tue, 30 Jul 2013 12:17:39 +0400 Message-id: <1375172259-9641-4-git-send-email-k.krivyakin@samsung.com> X-Mailer: git-send-email 1.7.9.5 In-reply-to: <1375172259-9641-1-git-send-email-k.krivyakin@samsung.com> References: <1375172259-9641-1-git-send-email-k.krivyakin@samsung.com> X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFprOLMWRmVeSWpSXmKPExsVy+t/xq7qby74HGhyaJGUxZ/0aNou159qZ LFZcPcJoMXXhYXaL3gVX2SzONr1ht7i8aw6bxedeoMSlAwuYLI73HmCy6F/Yy2Sx8auHA4/H 5hVaHneu7WHzODHjN4vH+31X2Tz6tqxi9Hi0uIXR4/MmuQD2KC6blNSczLLUIn27BK6MXddv shSsEK5Y9GseWwPjBoEuRk4OCQETidbHm9khbDGJC/fWs3UxcnEICSxllPjzaz8LhNPNJDFx Th8zSBUbUMfuvReZQRIiAosZJZbdnMQEkmAWaGKU+HeiCMQWFgiR6N90gA3EZhFQlZj6Yi/Y Cl4BN4mWJweBpnIArVOQmDPJBiTMKeAu0XLsGNh8IaCSa2dWME5g5F3AyLCKUTS1NLmgOCk9 10ivODG3uDQvXS85P3cTIyQwv+5gXHrM6hCjAAejEg8vR/G3QCHWxLLiytxDjBIczEoivCw3 gEK8KYmVValF+fFFpTmpxYcYmTg4pRoYT/PefH3wcdGJJSUty19qHo5xtFreXvjdtKGhxqY5 7/KMy1JxXy2y2eUXsX3/+vdITdTMM0fqhZmfLv/BsXj9mbQTa/0acy+qC724J7jm0Z8DpqrP 3t+4r+N8/nX6qeM2v06//3fxI8Mcz/fe9Y9Yb5fnW8iGShyVnbZi1YwrMx+tXTvxaFbHB3Ul luKMREMt5qLiRACqm87YKgIAAA== Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Signed-off-by: Konstantin Krivyakin --- drivers/cpufreq/exynos-cpufreq.c | 2 ++ drivers/cpufreq/exynos-cpufreq.h | 1 + drivers/cpufreq/exynos4x12-cpufreq.c | 19 ++++++++++++++++++- 3 files changed, 21 insertions(+), 1 deletion(-) diff --git a/drivers/cpufreq/exynos-cpufreq.c b/drivers/cpufreq/exynos-cpufreq.c index 0d32f02..02f17bc 100644 --- a/drivers/cpufreq/exynos-cpufreq.c +++ b/drivers/cpufreq/exynos-cpufreq.c @@ -178,6 +178,8 @@ static int exynos_target(struct cpufreq_policy *policy, } new_freq = freq_table[index].frequency; + if (exynos_info->power_table) + policy->current_power = exynos_info->power_table[index]; ret = exynos_cpufreq_scale(new_freq); diff --git a/drivers/cpufreq/exynos-cpufreq.h b/drivers/cpufreq/exynos-cpufreq.h index 92b852e..64f964f 100644 --- a/drivers/cpufreq/exynos-cpufreq.h +++ b/drivers/cpufreq/exynos-cpufreq.h @@ -38,6 +38,7 @@ struct exynos_dvfs_info { unsigned int pll_safe_idx; struct clk *cpu_clk; unsigned int *volt_table; + u64 *power_table; struct cpufreq_frequency_table *freq_table; void (*set_freq)(unsigned int, unsigned int); bool (*need_apll_change)(unsigned int, unsigned int); diff --git a/drivers/cpufreq/exynos4x12-cpufreq.c b/drivers/cpufreq/exynos4x12-cpufreq.c index 08b7477..8905f9b 100644 --- a/drivers/cpufreq/exynos4x12-cpufreq.c +++ b/drivers/cpufreq/exynos4x12-cpufreq.c @@ -219,6 +219,7 @@ static void exynos4x12_set_frequency(unsigned int old_index, int exynos4x12_cpufreq_init(struct exynos_dvfs_info *info) { unsigned long rate; + int freq_count; cpu_clk = clk_get(NULL, "armclk"); if (IS_ERR(cpu_clk)) @@ -252,8 +253,24 @@ int exynos4x12_cpufreq_init(struct exynos_dvfs_info *info) info->set_freq = exynos4x12_set_frequency; info->need_apll_change = exynos4x12_pms_change; - return 0; + freq_count = sizeof(exynos4x12_freq_table) / + sizeof(struct cpufreq_frequency_table); + info->power_table = kzalloc(sizeof(u64) * freq_count, GFP_KERNEL); + if (!info->power_table) + goto err_power_table; + + for (i = 0; i <= freq_count; ++i) { + u64 freq = info->freq_table[i].frequency; + u64 volt = info->volt_table[i]; + do_div(freq, 1000); + do_div(volt, 1000); + info->power_table[i] = freq * volt * volt; + } + + return 0; +err_power_table: + clk_put(mout_appl); err_mout_apll: clk_put(mout_mpll); err_mout_mpll: -- 1.7.9.5