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Diffstat (limited to 'arch/x86/kernel/cpu/cpufreq/e_powersaver.c')
-rw-r--r--arch/x86/kernel/cpu/cpufreq/e_powersaver.c27
1 files changed, 15 insertions, 12 deletions
diff --git a/arch/x86/kernel/cpu/cpufreq/e_powersaver.c b/arch/x86/kernel/cpu/cpufreq/e_powersaver.c
index c2f930d8664..35a257dd4bb 100644
--- a/arch/x86/kernel/cpu/cpufreq/e_powersaver.c
+++ b/arch/x86/kernel/cpu/cpufreq/e_powersaver.c
@@ -12,12 +12,12 @@
#include <linux/cpufreq.h>
#include <linux/ioport.h>
#include <linux/slab.h>
+#include <linux/timex.h>
+#include <linux/io.h>
+#include <linux/delay.h>
#include <asm/msr.h>
#include <asm/tsc.h>
-#include <asm/timex.h>
-#include <asm/io.h>
-#include <asm/delay.h>
#define EPS_BRAND_C7M 0
#define EPS_BRAND_C7 1
@@ -184,7 +184,7 @@ static int eps_cpu_init(struct cpufreq_policy *policy)
break;
}
- switch(brand) {
+ switch (brand) {
case EPS_BRAND_C7M:
printk(KERN_CONT "C7-M\n");
break;
@@ -204,12 +204,12 @@ static int eps_cpu_init(struct cpufreq_policy *policy)
}
/* Enable Enhanced PowerSaver */
rdmsrl(MSR_IA32_MISC_ENABLE, val);
- if (!(val & 1 << 16)) {
- val |= 1 << 16;
+ if (!(val & MSR_IA32_MISC_ENABLE_ENHANCED_SPEEDSTEP)) {
+ val |= MSR_IA32_MISC_ENABLE_ENHANCED_SPEEDSTEP;
wrmsrl(MSR_IA32_MISC_ENABLE, val);
/* Can be locked at 0 */
rdmsrl(MSR_IA32_MISC_ENABLE, val);
- if (!(val & 1 << 16)) {
+ if (!(val & MSR_IA32_MISC_ENABLE_ENHANCED_SPEEDSTEP)) {
printk(KERN_INFO "eps: Can't enable Enhanced PowerSaver\n");
return -ENODEV;
}
@@ -218,17 +218,20 @@ static int eps_cpu_init(struct cpufreq_policy *policy)
/* Print voltage and multiplier */
rdmsr(MSR_IA32_PERF_STATUS, lo, hi);
current_voltage = lo & 0xff;
- printk(KERN_INFO "eps: Current voltage = %dmV\n", current_voltage * 16 + 700);
+ printk(KERN_INFO "eps: Current voltage = %dmV\n",
+ current_voltage * 16 + 700);
current_multiplier = (lo >> 8) & 0xff;
printk(KERN_INFO "eps: Current multiplier = %d\n", current_multiplier);
/* Print limits */
max_voltage = hi & 0xff;
- printk(KERN_INFO "eps: Highest voltage = %dmV\n", max_voltage * 16 + 700);
+ printk(KERN_INFO "eps: Highest voltage = %dmV\n",
+ max_voltage * 16 + 700);
max_multiplier = (hi >> 8) & 0xff;
printk(KERN_INFO "eps: Highest multiplier = %d\n", max_multiplier);
min_voltage = (hi >> 16) & 0xff;
- printk(KERN_INFO "eps: Lowest voltage = %dmV\n", min_voltage * 16 + 700);
+ printk(KERN_INFO "eps: Lowest voltage = %dmV\n",
+ min_voltage * 16 + 700);
min_multiplier = (hi >> 24) & 0xff;
printk(KERN_INFO "eps: Lowest multiplier = %d\n", min_multiplier);
@@ -318,7 +321,7 @@ static int eps_cpu_exit(struct cpufreq_policy *policy)
return 0;
}
-static struct freq_attr* eps_attr[] = {
+static struct freq_attr *eps_attr[] = {
&cpufreq_freq_attr_scaling_available_freqs,
NULL,
};
@@ -356,7 +359,7 @@ static void __exit eps_exit(void)
cpufreq_unregister_driver(&eps_driver);
}
-MODULE_AUTHOR("Rafał Bilski <rafalbilski@interia.pl>");
+MODULE_AUTHOR("Rafal Bilski <rafalbilski@interia.pl>");
MODULE_DESCRIPTION("Enhanced PowerSaver driver for VIA C7 CPU's.");
MODULE_LICENSE("GPL");