aboutsummaryrefslogtreecommitdiff
path: root/drivers/cpufreq/s3c64xx-cpufreq.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/cpufreq/s3c64xx-cpufreq.c')
-rw-r--r--drivers/cpufreq/s3c64xx-cpufreq.c35
1 files changed, 22 insertions, 13 deletions
diff --git a/drivers/cpufreq/s3c64xx-cpufreq.c b/drivers/cpufreq/s3c64xx-cpufreq.c
index 3475f65aeec..a5e72cb5f53 100644
--- a/drivers/cpufreq/s3c64xx-cpufreq.c
+++ b/drivers/cpufreq/s3c64xx-cpufreq.c
@@ -8,6 +8,8 @@
* published by the Free Software Foundation.
*/
+#define pr_fmt(fmt) "cpufreq: " fmt
+
#include <linux/kernel.h>
#include <linux/types.h>
#include <linux/init.h>
@@ -91,7 +93,7 @@ static int s3c64xx_cpufreq_set_target(struct cpufreq_policy *policy,
if (freqs.old == freqs.new)
return 0;
- pr_debug("cpufreq: Transition %d-%dkHz\n", freqs.old, freqs.new);
+ pr_debug("Transition %d-%dkHz\n", freqs.old, freqs.new);
cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE);
@@ -101,7 +103,7 @@ static int s3c64xx_cpufreq_set_target(struct cpufreq_policy *policy,
dvfs->vddarm_min,
dvfs->vddarm_max);
if (ret != 0) {
- pr_err("cpufreq: Failed to set VDDARM for %dkHz: %d\n",
+ pr_err("Failed to set VDDARM for %dkHz: %d\n",
freqs.new, ret);
goto err;
}
@@ -110,7 +112,7 @@ static int s3c64xx_cpufreq_set_target(struct cpufreq_policy *policy,
ret = clk_set_rate(armclk, freqs.new * 1000);
if (ret < 0) {
- pr_err("cpufreq: Failed to set rate %dkHz: %d\n",
+ pr_err("Failed to set rate %dkHz: %d\n",
freqs.new, ret);
goto err;
}
@@ -123,14 +125,14 @@ static int s3c64xx_cpufreq_set_target(struct cpufreq_policy *policy,
dvfs->vddarm_min,
dvfs->vddarm_max);
if (ret != 0) {
- pr_err("cpufreq: Failed to set VDDARM for %dkHz: %d\n",
+ pr_err("Failed to set VDDARM for %dkHz: %d\n",
freqs.new, ret);
goto err_clk;
}
}
#endif
- pr_debug("cpufreq: Set actual frequency %lukHz\n",
+ pr_debug("Set actual frequency %lukHz\n",
clk_get_rate(armclk) / 1000);
return 0;
@@ -153,7 +155,7 @@ static void __init s3c64xx_cpufreq_config_regulator(void)
count = regulator_count_voltages(vddarm);
if (count < 0) {
- pr_err("cpufreq: Unable to check supported voltages\n");
+ pr_err("Unable to check supported voltages\n");
}
freq = s3c64xx_freq_table;
@@ -171,7 +173,7 @@ static void __init s3c64xx_cpufreq_config_regulator(void)
}
if (!found) {
- pr_debug("cpufreq: %dkHz unsupported by regulator\n",
+ pr_debug("%dkHz unsupported by regulator\n",
freq->frequency);
freq->frequency = CPUFREQ_ENTRY_INVALID;
}
@@ -194,13 +196,13 @@ static int s3c64xx_cpufreq_driver_init(struct cpufreq_policy *policy)
return -EINVAL;
if (s3c64xx_freq_table == NULL) {
- pr_err("cpufreq: No frequency information for this CPU\n");
+ pr_err("No frequency information for this CPU\n");
return -ENODEV;
}
armclk = clk_get(NULL, "armclk");
if (IS_ERR(armclk)) {
- pr_err("cpufreq: Unable to obtain ARMCLK: %ld\n",
+ pr_err("Unable to obtain ARMCLK: %ld\n",
PTR_ERR(armclk));
return PTR_ERR(armclk);
}
@@ -209,12 +211,19 @@ static int s3c64xx_cpufreq_driver_init(struct cpufreq_policy *policy)
vddarm = regulator_get(NULL, "vddarm");
if (IS_ERR(vddarm)) {
ret = PTR_ERR(vddarm);
- pr_err("cpufreq: Failed to obtain VDDARM: %d\n", ret);
- pr_err("cpufreq: Only frequency scaling available\n");
+ pr_err("Failed to obtain VDDARM: %d\n", ret);
+ pr_err("Only frequency scaling available\n");
vddarm = NULL;
} else {
s3c64xx_cpufreq_config_regulator();
}
+
+ vddint = regulator_get(NULL, "vddint");
+ if (IS_ERR(vddint)) {
+ ret = PTR_ERR(vddint);
+ pr_err("Failed to obtain VDDINT: %d\n", ret);
+ vddint = NULL;
+ }
#endif
freq = s3c64xx_freq_table;
@@ -225,7 +234,7 @@ static int s3c64xx_cpufreq_driver_init(struct cpufreq_policy *policy)
r = clk_round_rate(armclk, freq->frequency * 1000);
r /= 1000;
if (r != freq->frequency) {
- pr_debug("cpufreq: %dkHz unsupported by clock\n",
+ pr_debug("%dkHz unsupported by clock\n",
freq->frequency);
freq->frequency = CPUFREQ_ENTRY_INVALID;
}
@@ -248,7 +257,7 @@ static int s3c64xx_cpufreq_driver_init(struct cpufreq_policy *policy)
ret = cpufreq_frequency_table_cpuinfo(policy, s3c64xx_freq_table);
if (ret != 0) {
- pr_err("cpufreq: Failed to configure frequency table: %d\n",
+ pr_err("Failed to configure frequency table: %d\n",
ret);
regulator_put(vddarm);
clk_put(armclk);