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-rw-r--r--drivers/cpufreq/arm_big_little.c4
-rw-r--r--drivers/cpufreq/davinci-cpufreq.c3
-rw-r--r--drivers/cpufreq/dbx500-cpufreq.c4
-rw-r--r--drivers/cpufreq/exynos-cpufreq.c10
-rw-r--r--drivers/cpufreq/imx6q-cpufreq.c17
-rw-r--r--drivers/cpufreq/omap-cpufreq.c6
-rw-r--r--drivers/cpufreq/s3c64xx-cpufreq.c8
-rw-r--r--drivers/cpufreq/tegra-cpufreq.c4
8 files changed, 36 insertions, 20 deletions
diff --git a/drivers/cpufreq/arm_big_little.c b/drivers/cpufreq/arm_big_little.c
index 5d7f53fcd6f5..3549f0784af1 100644
--- a/drivers/cpufreq/arm_big_little.c
+++ b/drivers/cpufreq/arm_big_little.c
@@ -84,11 +84,9 @@ static int bL_cpufreq_set_target(struct cpufreq_policy *policy,
ret = clk_set_rate(clk[cur_cluster], freqs.new * 1000);
if (ret) {
pr_err("clk_set_rate failed: %d\n", ret);
- return ret;
+ freqs.new = freqs.old;
}
- policy->cur = freqs.new;
-
cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
return ret;
diff --git a/drivers/cpufreq/davinci-cpufreq.c b/drivers/cpufreq/davinci-cpufreq.c
index c33c76c360fa..551dd655c6f2 100644
--- a/drivers/cpufreq/davinci-cpufreq.c
+++ b/drivers/cpufreq/davinci-cpufreq.c
@@ -114,6 +114,9 @@ static int davinci_target(struct cpufreq_policy *policy,
pdata->set_voltage(idx);
out:
+ if (ret)
+ freqs.new = freqs.old;
+
cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
return ret;
diff --git a/drivers/cpufreq/dbx500-cpufreq.c b/drivers/cpufreq/dbx500-cpufreq.c
index 6ec6539ae041..1fdb02b9f1ec 100644
--- a/drivers/cpufreq/dbx500-cpufreq.c
+++ b/drivers/cpufreq/dbx500-cpufreq.c
@@ -57,13 +57,13 @@ static int dbx500_cpufreq_target(struct cpufreq_policy *policy,
if (ret) {
pr_err("dbx500-cpufreq: Failed to set armss_clk to %d Hz: error %d\n",
freqs.new * 1000, ret);
- return ret;
+ freqs.new = freqs.old;
}
/* post change notification */
cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
- return 0;
+ return ret;
}
static unsigned int dbx500_cpufreq_getspeed(unsigned int cpu)
diff --git a/drivers/cpufreq/exynos-cpufreq.c b/drivers/cpufreq/exynos-cpufreq.c
index 475b4f607f0d..0d32f02ef4d6 100644
--- a/drivers/cpufreq/exynos-cpufreq.c
+++ b/drivers/cpufreq/exynos-cpufreq.c
@@ -113,7 +113,8 @@ static int exynos_cpufreq_scale(unsigned int target_freq)
if (ret) {
pr_err("%s: failed to set cpu voltage to %d\n",
__func__, arm_volt);
- goto out;
+ freqs.new = freqs.old;
+ goto post_notify;
}
}
@@ -123,14 +124,19 @@ static int exynos_cpufreq_scale(unsigned int target_freq)
if (ret) {
pr_err("%s: failed to set cpu voltage to %d\n",
__func__, safe_arm_volt);
- goto out;
+ freqs.new = freqs.old;
+ goto post_notify;
}
}
exynos_info->set_freq(old_index, index);
+post_notify:
cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
+ if (ret)
+ goto out;
+
/* When the new frequency is lower than current frequency */
if ((freqs.new < freqs.old) ||
((freqs.new > freqs.old) && safe_arm_volt)) {
diff --git a/drivers/cpufreq/imx6q-cpufreq.c b/drivers/cpufreq/imx6q-cpufreq.c
index b78bc35973ba..e37cdaedbb5b 100644
--- a/drivers/cpufreq/imx6q-cpufreq.c
+++ b/drivers/cpufreq/imx6q-cpufreq.c
@@ -68,8 +68,6 @@ static int imx6q_set_target(struct cpufreq_policy *policy,
if (freqs.old == freqs.new)
return 0;
- cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
-
rcu_read_lock();
opp = opp_find_freq_ceil(cpu_dev, &freq_hz);
if (IS_ERR(opp)) {
@@ -86,13 +84,16 @@ static int imx6q_set_target(struct cpufreq_policy *policy,
freqs.old / 1000, volt_old / 1000,
freqs.new / 1000, volt / 1000);
+ cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
+
/* scaling up? scale voltage before frequency */
if (freqs.new > freqs.old) {
ret = regulator_set_voltage_tol(arm_reg, volt, 0);
if (ret) {
dev_err(cpu_dev,
"failed to scale vddarm up: %d\n", ret);
- return ret;
+ freqs.new = freqs.old;
+ goto post_notify;
}
/*
@@ -145,15 +146,18 @@ static int imx6q_set_target(struct cpufreq_policy *policy,
if (ret) {
dev_err(cpu_dev, "failed to set clock rate: %d\n", ret);
regulator_set_voltage_tol(arm_reg, volt_old, 0);
- return ret;
+ freqs.new = freqs.old;
+ goto post_notify;
}
/* scaling down? scale voltage after frequency */
if (freqs.new < freqs.old) {
ret = regulator_set_voltage_tol(arm_reg, volt, 0);
- if (ret)
+ if (ret) {
dev_warn(cpu_dev,
"failed to scale vddarm down: %d\n", ret);
+ ret = 0;
+ }
if (freqs.old == FREQ_1P2_GHZ / 1000) {
regulator_set_voltage_tol(pu_reg,
@@ -163,9 +167,10 @@ static int imx6q_set_target(struct cpufreq_policy *policy,
}
}
+post_notify:
cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
- return 0;
+ return ret;
}
static int imx6q_cpufreq_init(struct cpufreq_policy *policy)
diff --git a/drivers/cpufreq/omap-cpufreq.c b/drivers/cpufreq/omap-cpufreq.c
index 0279d18a57f9..29468a522ee9 100644
--- a/drivers/cpufreq/omap-cpufreq.c
+++ b/drivers/cpufreq/omap-cpufreq.c
@@ -93,9 +93,6 @@ static int omap_target(struct cpufreq_policy *policy,
if (freqs.old == freqs.new && policy->cur == freqs.new)
return ret;
- /* notifiers */
- cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
-
freq = freqs.new * 1000;
ret = clk_round_rate(mpu_clk, freq);
if (IS_ERR_VALUE(ret)) {
@@ -125,6 +122,9 @@ static int omap_target(struct cpufreq_policy *policy,
freqs.old / 1000, volt_old ? volt_old / 1000 : -1,
freqs.new / 1000, volt ? volt / 1000 : -1);
+ /* notifiers */
+ cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
+
/* scaling up? scale voltage before frequency */
if (mpu_reg && (freqs.new > freqs.old)) {
r = regulator_set_voltage(mpu_reg, volt - tol, volt + tol);
diff --git a/drivers/cpufreq/s3c64xx-cpufreq.c b/drivers/cpufreq/s3c64xx-cpufreq.c
index 27cacb524796..017ade0af36b 100644
--- a/drivers/cpufreq/s3c64xx-cpufreq.c
+++ b/drivers/cpufreq/s3c64xx-cpufreq.c
@@ -104,7 +104,8 @@ static int s3c64xx_cpufreq_set_target(struct cpufreq_policy *policy,
if (ret != 0) {
pr_err("Failed to set VDDARM for %dkHz: %d\n",
freqs.new, ret);
- goto err;
+ freqs.new = freqs.old;
+ goto post_notify;
}
}
#endif
@@ -113,10 +114,13 @@ static int s3c64xx_cpufreq_set_target(struct cpufreq_policy *policy,
if (ret < 0) {
pr_err("Failed to set rate %dkHz: %d\n",
freqs.new, ret);
- goto err;
+ freqs.new = freqs.old;
}
+post_notify:
cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
+ if (ret)
+ goto err;
#ifdef CONFIG_REGULATOR
if (vddarm && freqs.new < freqs.old) {
diff --git a/drivers/cpufreq/tegra-cpufreq.c b/drivers/cpufreq/tegra-cpufreq.c
index c74c0e130ef4..e74d7774cf1e 100644
--- a/drivers/cpufreq/tegra-cpufreq.c
+++ b/drivers/cpufreq/tegra-cpufreq.c
@@ -138,12 +138,12 @@ static int tegra_update_cpu_speed(struct cpufreq_policy *policy,
if (ret) {
pr_err("cpu-tegra: Failed to set cpu frequency to %d kHz\n",
freqs.new);
- return ret;
+ freqs.new = freqs.old;
}
cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
- return 0;
+ return ret;
}
static unsigned long tegra_cpu_highest_speed(void)
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-27 16:40:07 +0000