Linux Samsung SOC development
 help / color / mirror / Atom feed
From: Jonghwan Choi <jhbird.choi@samsung.com>
To: "'open list:CPU FREQUENCY DRI...'" <cpufreq@vger.kernel.org>,
	linux-arm-kernel@lists.infradead.org,
	linux-samsung-soc@vger.kernel.org
Cc: "'Rafael J. Wysocki'" <rjw@rjwysocki.net>,
	'Viresh Kumar' <viresh.kumar@linaro.org>,
	'Kukjin Kim' <kgene.kim@samsung.com>
Subject: [PATCH 2/3] cpufreq: Removed exynos_sort_descend_freq_table funtion
Date: Wed, 30 Apr 2014 15:28:35 +0900	[thread overview]
Message-ID: <000101cf643d$6a36c270$3ea44750$@samsung.com> (raw)

After applying "PM / OPP: Add support for descending order for cpufreq
table"
,to make the table descending we can use OPP_TABLE_ORDER_DESCEND flag.

Signed-off-by: Jonghwan Choi <jhbird.choi@samsung.com>
---
 drivers/cpufreq/exynos5440-cpufreq.c |   22 +---------------------
 1 file changed, 1 insertion(+), 21 deletions(-)

diff --git a/drivers/cpufreq/exynos5440-cpufreq.c
b/drivers/cpufreq/exynos5440-cpufreq.c
index a6b8214..fc19beb 100644
--- a/drivers/cpufreq/exynos5440-cpufreq.c
+++ b/drivers/cpufreq/exynos5440-cpufreq.c
@@ -279,25 +279,6 @@ static irqreturn_t exynos_cpufreq_irq(int irq, void
*id)
 	return IRQ_HANDLED;
 }
 
-static void exynos_sort_descend_freq_table(void)
-{
-	struct cpufreq_frequency_table *freq_tbl = dvfs_info->freq_table;
-	int i = 0, index;
-	unsigned int tmp_freq;
-	/*
-	 * Exynos5440 clock controller state logic expects the cpufreq table
to
-	 * be in descending order. But the OPP library constructs the table
in
-	 * ascending order. So to make the table descending we just need to
-	 * swap the i element with the N - i element.
-	 */
-	for (i = 0; i < dvfs_info->freq_count / 2; i++) {
-		index = dvfs_info->freq_count - i - 1;
-		tmp_freq = freq_tbl[i].frequency;
-		freq_tbl[i].frequency = freq_tbl[index].frequency;
-		freq_tbl[index].frequency = tmp_freq;
-	}
-}
-
 static int exynos_cpufreq_cpu_init(struct cpufreq_policy *policy)
 {
 	policy->clk = dvfs_info->cpu_clk;
@@ -367,14 +348,13 @@ static int exynos_cpufreq_probe(struct platform_device
*pdev)
 	}
 
 	ret = dev_pm_opp_init_cpufreq_table(dvfs_info->dev,
-					    &dvfs_info->freq_table);
+			&dvfs_info->freq_table, OPP_TABLE_ORDER_DESCEND);
 	if (ret) {
 		dev_err(dvfs_info->dev,
 			"failed to init cpufreq table: %d\n", ret);
 		goto err_put_node;
 	}
 	dvfs_info->freq_count = dev_pm_opp_get_opp_count(dvfs_info->dev);
-	exynos_sort_descend_freq_table();
 
 	if (of_property_read_u32(np, "clock-latency", &dvfs_info->latency))
 		dvfs_info->latency = DEF_TRANS_LATENCY;
-- 
1.7.10.4

                 reply	other threads:[~2014-04-30  6:28 UTC|newest]

Thread overview: [no followups] expand[flat|nested]  mbox.gz  Atom feed

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to='000101cf643d$6a36c270$3ea44750$@samsung.com' \
    --to=jhbird.choi@samsung.com \
    --cc=cpufreq@vger.kernel.org \
    --cc=kgene.kim@samsung.com \
    --cc=linux-arm-kernel@lists.infradead.org \
    --cc=linux-samsung-soc@vger.kernel.org \
    --cc=rjw@rjwysocki.net \
    --cc=viresh.kumar@linaro.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox