From patchwork Fri Sep 13 13:02:50 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Viresh Kumar X-Patchwork-Id: 20278 Return-Path: X-Original-To: linaro@patches.linaro.org Delivered-To: linaro@patches.linaro.org Received: from mail-yh0-f72.google.com (mail-yh0-f72.google.com [209.85.213.72]) by ip-10-151-82-157.ec2.internal (Postfix) with ESMTPS id 2B0ED20358 for ; Fri, 13 Sep 2013 13:29:42 +0000 (UTC) Received: by mail-yh0-f72.google.com with SMTP id z20sf1256520yhz.11 for ; Fri, 13 Sep 2013 06:29:41 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:mime-version:delivered-to:from:to:cc:subject :date:message-id:in-reply-to:references:in-reply-to:references :x-original-sender:x-original-authentication-results:precedence :mailing-list:list-id:list-post:list-help:list-archive :list-unsubscribe; bh=bHOvF/wmifLoAfO/cUoriZ2DFmyoue6+bTc3vmbd0EU=; b=Z/jcMD0C2rUbXmW2DZk8vNRuDZGAJIr5Cq75cDmLJXqBZROy1s+ppqzVHXkZ2DdK/z 4XfPXCdVn/MAy/qMGvyuA8c5tWhtDFTA9xEN+xHzzztNfKmrqXLgpm+AG5EOKgzx8ncO x3SFrercVKP0eHjWvYXCX1CUQgAA61XRDrtQYroyV5f+C9vpR+pw2Kb5YAnO9OiD+ntI 2uMzt6elowlr9ferdeKu5J8o7F0fi5oeTY4wc+jXiKD2A6rO0mISc7qlWuBNV+j5vRc6 wISK6E1Y+l9yLaqayMrHtlDP23zceAtlqWNqkgFLP3pKjKyUfSzaW82vvDK9+KL1iujV ZzKg== X-Gm-Message-State: ALoCoQk1qxdT9/Ll6+wJZBSvH0fcQ6YCGUZeV6IdfulCAcJodSg/XuXH8JIb7AP5vonyx2hJvo/T X-Received: by 10.236.14.100 with SMTP id c64mr5171682yhc.38.1379078981926; Fri, 13 Sep 2013 06:29:41 -0700 (PDT) MIME-Version: 1.0 X-BeenThere: patchwork-forward@linaro.org Received: by 10.49.6.73 with SMTP id y9ls1204538qey.60.gmail; Fri, 13 Sep 2013 06:29:41 -0700 (PDT) X-Received: by 10.52.230.202 with SMTP id ta10mr176730vdc.41.1379078981714; Fri, 13 Sep 2013 06:29:41 -0700 (PDT) Received: from mail-vc0-f171.google.com (mail-vc0-f171.google.com [209.85.220.171]) by mx.google.com with ESMTPS id bq2si3118241vcb.115.1969.12.31.16.00.00 (version=TLSv1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Fri, 13 Sep 2013 06:29:41 -0700 (PDT) Received-SPF: neutral (google.com: 209.85.220.171 is neither permitted nor denied by best guess record for domain of patch+caf_=patchwork-forward=linaro.org@linaro.org) client-ip=209.85.220.171; Received: by mail-vc0-f171.google.com with SMTP id ij15so940398vcb.30 for ; Fri, 13 Sep 2013 06:29:41 -0700 (PDT) X-Received: by 10.58.197.5 with SMTP id iq5mr420120vec.30.1379078981600; Fri, 13 Sep 2013 06:29:41 -0700 (PDT) X-Forwarded-To: patchwork-forward@linaro.org X-Forwarded-For: patch@linaro.org patchwork-forward@linaro.org Delivered-To: patches@linaro.org Received: by 10.220.174.196 with SMTP id u4csp80815vcz; Fri, 13 Sep 2013 06:29:41 -0700 (PDT) X-Received: by 10.66.227.2 with SMTP id rw2mr15347047pac.131.1379078980657; Fri, 13 Sep 2013 06:29:40 -0700 (PDT) Received: from mail-pb0-f51.google.com (mail-pb0-f51.google.com [209.85.160.51]) by mx.google.com with ESMTPS id br4si7502576pbd.63.1969.12.31.16.00.00 (version=TLSv1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Fri, 13 Sep 2013 06:29:40 -0700 (PDT) Received-SPF: neutral (google.com: 209.85.160.51 is neither permitted nor denied by best guess record for domain of viresh.kumar@linaro.org) client-ip=209.85.160.51; Received: by mail-pb0-f51.google.com with SMTP id jt11so1227815pbb.38 for ; Fri, 13 Sep 2013 06:29:40 -0700 (PDT) X-Received: by 10.66.219.200 with SMTP id pq8mr15313757pac.123.1379078980248; Fri, 13 Sep 2013 06:29:40 -0700 (PDT) Received: from localhost ([122.167.78.148]) by mx.google.com with ESMTPSA id kd1sm18100208pab.20.1969.12.31.16.00.00 (version=TLSv1.2 cipher=RC4-SHA bits=128/128); Fri, 13 Sep 2013 06:29:39 -0700 (PDT) From: Viresh Kumar To: rjw@sisk.pl Cc: linaro-kernel@lists.linaro.org, patches@linaro.org, cpufreq@vger.kernel.org, linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Viresh Kumar , Kukjin Kim Subject: [PATCH 224/228] cpufreq: s3c: use cpufreq_generic_get() routine Date: Fri, 13 Sep 2013 18:32:50 +0530 Message-Id: <0418642a8eb6090b10d134c1737b35efe6671a34.1379063063.git.viresh.kumar@linaro.org> X-Mailer: git-send-email 1.7.12.rc2.18.g61b472e In-Reply-To: References: In-Reply-To: References: X-Removed-Original-Auth: Dkim didn't pass. X-Original-Sender: viresh.kumar@linaro.org X-Original-Authentication-Results: mx.google.com; spf=neutral (google.com: 209.85.220.171 is neither permitted nor denied by best guess record for domain of patch+caf_=patchwork-forward=linaro.org@linaro.org) smtp.mail=patch+caf_=patchwork-forward=linaro.org@linaro.org Precedence: list Mailing-list: list patchwork-forward@linaro.org; contact patchwork-forward+owners@linaro.org List-ID: X-Google-Group-Id: 836684582541 List-Post: , List-Help: , List-Archive: List-Unsubscribe: , We have common infrastructure available with us for getting a CPUs clk rate. Lets use it for this driver. We don't need a global variable to hold clock anymore. Cc: Kukjin Kim Signed-off-by: Viresh Kumar --- drivers/cpufreq/s3c24xx-cpufreq.c | 10 +++------- drivers/cpufreq/s3c64xx-cpufreq.c | 33 ++++++++++++--------------------- 2 files changed, 15 insertions(+), 28 deletions(-) diff --git a/drivers/cpufreq/s3c24xx-cpufreq.c b/drivers/cpufreq/s3c24xx-cpufreq.c index 4850882..7be6c2d 100644 --- a/drivers/cpufreq/s3c24xx-cpufreq.c +++ b/drivers/cpufreq/s3c24xx-cpufreq.c @@ -355,11 +355,6 @@ static int s3c_cpufreq_target(struct cpufreq_policy *policy, return -EINVAL; } -static unsigned int s3c_cpufreq_get(unsigned int cpu) -{ - return clk_get_rate(clk_arm) / 1000; -} - struct clk *s3c_cpufreq_clk_get(struct device *dev, const char *name) { struct clk *clk; @@ -373,6 +368,7 @@ struct clk *s3c_cpufreq_clk_get(struct device *dev, const char *name) static int s3c_cpufreq_init(struct cpufreq_policy *policy) { + policy->clk = clk_arm; return cpufreq_generic_init(policy, ftab, cpu_cur.info->latency); } @@ -408,7 +404,7 @@ static int s3c_cpufreq_suspend(struct cpufreq_policy *policy) { suspend_pll.frequency = clk_get_rate(_clk_mpll); suspend_pll.driver_data = __raw_readl(S3C2410_MPLLCON); - suspend_freq = s3c_cpufreq_get(0) * 1000; + suspend_freq = clk_get_rate(clk_arm); return 0; } @@ -450,7 +446,7 @@ static int s3c_cpufreq_resume(struct cpufreq_policy *policy) static struct cpufreq_driver s3c24xx_driver = { .flags = CPUFREQ_STICKY, .target = s3c_cpufreq_target, - .get = s3c_cpufreq_get, + .get = cpufreq_generic_get, .init = s3c_cpufreq_init, .suspend = s3c_cpufreq_suspend, .resume = s3c_cpufreq_resume, diff --git a/drivers/cpufreq/s3c64xx-cpufreq.c b/drivers/cpufreq/s3c64xx-cpufreq.c index 8b49a06..5b0089a 100644 --- a/drivers/cpufreq/s3c64xx-cpufreq.c +++ b/drivers/cpufreq/s3c64xx-cpufreq.c @@ -19,7 +19,6 @@ #include #include -static struct clk *armclk; static struct regulator *vddarm; static unsigned long regulator_latency; @@ -54,14 +53,6 @@ static struct cpufreq_frequency_table s3c64xx_freq_table[] = { }; #endif -static unsigned int s3c64xx_cpufreq_get_speed(unsigned int cpu) -{ - if (cpu != 0) - return 0; - - return clk_get_rate(armclk) / 1000; -} - static int s3c64xx_cpufreq_set_target(struct cpufreq_policy *policy, unsigned int index) { @@ -69,7 +60,7 @@ static int s3c64xx_cpufreq_set_target(struct cpufreq_policy *policy, unsigned int old_freq, new_freq; int ret; - old_freq = clk_get_rate(armclk) / 1000; + old_freq = clk_get_rate(policy->clk) / 1000; new_freq = s3c64xx_freq_table[index].frequency; dvfs = &s3c64xx_dvfs_table[s3c64xx_freq_table[index].driver_data]; @@ -86,7 +77,7 @@ static int s3c64xx_cpufreq_set_target(struct cpufreq_policy *policy, } #endif - ret = clk_set_rate(armclk, new_freq * 1000); + ret = clk_set_rate(policy->clk, new_freq * 1000); if (ret < 0) { pr_err("Failed to set rate %dkHz: %d\n", new_freq, ret); @@ -101,7 +92,7 @@ static int s3c64xx_cpufreq_set_target(struct cpufreq_policy *policy, if (ret != 0) { pr_err("Failed to set VDDARM for %dkHz: %d\n", new_freq, ret); - if (clk_set_rate(armclk, old_freq * 1000) < 0) + if (clk_set_rate(policy->clk, old_freq * 1000) < 0) pr_err("Failed to restore original clock rate\n"); return ret; @@ -110,7 +101,7 @@ static int s3c64xx_cpufreq_set_target(struct cpufreq_policy *policy, #endif pr_debug("Set actual frequency %lukHz\n", - clk_get_rate(armclk) / 1000); + clk_get_rate(policy->clk) / 1000); return 0; } @@ -169,11 +160,11 @@ static int s3c64xx_cpufreq_driver_init(struct cpufreq_policy *policy) return -ENODEV; } - armclk = clk_get(NULL, "armclk"); - if (IS_ERR(armclk)) { + policy->clk = clk_get(NULL, "armclk"); + if (IS_ERR(policy->clk)) { pr_err("Unable to obtain ARMCLK: %ld\n", - PTR_ERR(armclk)); - return PTR_ERR(armclk); + PTR_ERR(policy->clk)); + return PTR_ERR(policy->clk); } #ifdef CONFIG_REGULATOR @@ -193,7 +184,7 @@ static int s3c64xx_cpufreq_driver_init(struct cpufreq_policy *policy) unsigned long r; /* Check for frequencies we can generate */ - r = clk_round_rate(armclk, freq->frequency * 1000); + r = clk_round_rate(policy->clk, freq->frequency * 1000); r /= 1000; if (r != freq->frequency) { pr_debug("%dkHz unsupported by clock\n", @@ -203,7 +194,7 @@ static int s3c64xx_cpufreq_driver_init(struct cpufreq_policy *policy) /* If we have no regulator then assume startup * frequency is the maximum we can support. */ - if (!vddarm && freq->frequency > s3c64xx_cpufreq_get_speed(0)) + if (!vddarm && freq->frequency > clk_get_rate(policy->clk) / 1000) freq->frequency = CPUFREQ_ENTRY_INVALID; freq++; @@ -219,7 +210,7 @@ static int s3c64xx_cpufreq_driver_init(struct cpufreq_policy *policy) pr_err("Failed to configure frequency table: %d\n", ret); regulator_put(vddarm); - clk_put(armclk); + clk_put(policy->clk); } return ret; @@ -229,7 +220,7 @@ static struct cpufreq_driver s3c64xx_cpufreq_driver = { .flags = 0, .verify = cpufreq_generic_frequency_table_verify, .target_index = s3c64xx_cpufreq_set_target, - .get = s3c64xx_cpufreq_get_speed, + .get = cpufreq_generic_get, .init = s3c64xx_cpufreq_driver_init, .name = "s3c", };