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authorMark Brown <broonie@opensource.wolfsonmicro.com>2011-06-22 15:08:56 +0100
committerDave Jones <davej@redhat.com>2011-07-13 18:29:55 -0400
commitfb3b1fefaaccdbdc716db0963ba41fb6b4221e60 (patch)
tree219a9bfe8331bbed5282a81842a62a544c25b05b /drivers/cpufreq
parentc6e2d68558b612fdfdb0d7ddcb51ad4578b81eba (diff)
[CPUFREQ] S3C64xx: Notify transition complete as soon as frequency changed
The CPUFREQ_POSTCHANGE notification is used to update things that depend on the system clock rates. Since this may include the interfaces used to talk to the regulators do the notification before we try to update regulators to reflect lowered system clock rate. The voltage scaling is just a power optimisation and may not happen at all so there's no concern about it not having completed. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Kukjin Kim <kgene.kim@samsung.com> Signed-off-by: Dave Jones <davej@redhat.com>
Diffstat (limited to 'drivers/cpufreq')
-rw-r--r--drivers/cpufreq/s3c64xx-cpufreq.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/cpufreq/s3c64xx-cpufreq.c b/drivers/cpufreq/s3c64xx-cpufreq.c
index fc69178798e..e818248ab2b 100644
--- a/drivers/cpufreq/s3c64xx-cpufreq.c
+++ b/drivers/cpufreq/s3c64xx-cpufreq.c
@@ -112,6 +112,8 @@ static int s3c64xx_cpufreq_set_target(struct cpufreq_policy *policy,
goto err;
}
+ cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE);
+
#ifdef CONFIG_REGULATOR
if (vddarm && freqs.new < freqs.old) {
ret = regulator_set_voltage(vddarm,
@@ -125,8 +127,6 @@ static int s3c64xx_cpufreq_set_target(struct cpufreq_policy *policy,
}
#endif
- cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE);
-
pr_debug("cpufreq: Set actual frequency %lukHz\n",
clk_get_rate(armclk) / 1000);