Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754853Ab3HPC2Y (ORCPT ); Thu, 15 Aug 2013 22:28:24 -0400 Received: from mail-pb0-f51.google.com ([209.85.160.51]:63135 "EHLO mail-pb0-f51.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754918Ab3HPC2U (ORCPT ); Thu, 15 Aug 2013 22:28:20 -0400 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 , Santosh Shilimkar Subject: [PATCH 20/34] cpufreq: omap: remove calls to cpufreq_notify_transition() Date: Fri, 16 Aug 2013 07:55:17 +0530 Message-Id: X-Mailer: git-send-email 1.7.12.rc2.18.g61b472e In-Reply-To: References: In-Reply-To: References: Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 3813 Lines: 120 Most of the drivers do following in their ->target_index() routines: struct cpufreq_freqs freqs; freqs.old = old freq... freqs.new = new freq... cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE); /* Change rate here */ cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE); This is replicated over all cpufreq drivers today and there doesn't exists a good enough reason why this shouldn't be moved to cpufreq core instead. Earlier patches have added support in cpufreq core to do cpufreq notification on frequency change, this one removes it from this driver. Some related minor cleanups are also done along with it. Cc: Santosh Shilimkar Signed-off-by: Viresh Kumar --- drivers/cpufreq/omap-cpufreq.c | 39 ++++++++++++++------------------------- 1 file changed, 14 insertions(+), 25 deletions(-) diff --git a/drivers/cpufreq/omap-cpufreq.c b/drivers/cpufreq/omap-cpufreq.c index 92d45e6..97610a3 100644 --- a/drivers/cpufreq/omap-cpufreq.c +++ b/drivers/cpufreq/omap-cpufreq.c @@ -53,15 +53,15 @@ static unsigned int omap_getspeed(unsigned int cpu) static int omap_target(struct cpufreq_policy *policy, unsigned int index) { - int r, ret = 0; - struct cpufreq_freqs freqs; + int r, ret; struct opp *opp; unsigned long freq, volt = 0, volt_old = 0, tol = 0; + unsigned int old_freq, new_freq; - freqs.old = omap_getspeed(policy->cpu); - freqs.new = freq_table[index].frequency; + old_freq = omap_getspeed(policy->cpu); + new_freq = freq_table[index].frequency; - freq = freqs.new * 1000; + freq = new_freq * 1000; ret = clk_round_rate(mpu_clk, freq); if (IS_ERR_VALUE(ret)) { dev_warn(mpu_dev, @@ -77,7 +77,7 @@ static int omap_target(struct cpufreq_policy *policy, unsigned int index) if (IS_ERR(opp)) { rcu_read_unlock(); dev_err(mpu_dev, "%s: unable to find MPU OPP for %d\n", - __func__, freqs.new); + __func__, new_freq); return -EINVAL; } volt = opp_get_voltage(opp); @@ -87,43 +87,32 @@ static int omap_target(struct cpufreq_policy *policy, unsigned int index) } dev_dbg(mpu_dev, "cpufreq-omap: %u MHz, %ld mV --> %u MHz, %ld mV\n", - freqs.old / 1000, volt_old ? volt_old / 1000 : -1, - freqs.new / 1000, volt ? volt / 1000 : -1); - - /* notifiers */ - cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE); + old_freq / 1000, volt_old ? volt_old / 1000 : -1, + new_freq / 1000, volt ? volt / 1000 : -1); /* scaling up? scale voltage before frequency */ - if (mpu_reg && (freqs.new > freqs.old)) { + if (mpu_reg && (new_freq > old_freq)) { r = regulator_set_voltage(mpu_reg, volt - tol, volt + tol); if (r < 0) { dev_warn(mpu_dev, "%s: unable to scale voltage up.\n", __func__); - freqs.new = freqs.old; - goto done; + return r; } } - ret = clk_set_rate(mpu_clk, freqs.new * 1000); + ret = clk_set_rate(mpu_clk, new_freq * 1000); /* scaling down? scale voltage after frequency */ - if (mpu_reg && (freqs.new < freqs.old)) { + if (mpu_reg && (new_freq < old_freq)) { r = regulator_set_voltage(mpu_reg, volt - tol, volt + tol); if (r < 0) { dev_warn(mpu_dev, "%s: unable to scale voltage down.\n", __func__); - ret = clk_set_rate(mpu_clk, freqs.old * 1000); - freqs.new = freqs.old; - goto done; + clk_set_rate(mpu_clk, old_freq * 1000); + return r; } } - freqs.new = omap_getspeed(policy->cpu); - -done: - /* notifiers */ - cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE); - return ret; } -- 1.7.12.rc2.18.g61b472e -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/