diff options
Diffstat (limited to 'arch/x86/kernel/cpu/cpufreq/elanfreq.c')
-rw-r--r-- | arch/x86/kernel/cpu/cpufreq/elanfreq.c | 42 |
1 files changed, 21 insertions, 21 deletions
diff --git a/arch/x86/kernel/cpu/cpufreq/elanfreq.c b/arch/x86/kernel/cpu/cpufreq/elanfreq.c index e4a4bf870e94..fe613c93b366 100644 --- a/arch/x86/kernel/cpu/cpufreq/elanfreq.c +++ b/arch/x86/kernel/cpu/cpufreq/elanfreq.c | |||
@@ -25,8 +25,8 @@ | |||
25 | #include <linux/cpufreq.h> | 25 | #include <linux/cpufreq.h> |
26 | 26 | ||
27 | #include <asm/msr.h> | 27 | #include <asm/msr.h> |
28 | #include <asm/timex.h> | 28 | #include <linux/timex.h> |
29 | #include <asm/io.h> | 29 | #include <linux/io.h> |
30 | 30 | ||
31 | #define REG_CSCIR 0x22 /* Chip Setup and Control Index Register */ | 31 | #define REG_CSCIR 0x22 /* Chip Setup and Control Index Register */ |
32 | #define REG_CSCDR 0x23 /* Chip Setup and Control Data Register */ | 32 | #define REG_CSCDR 0x23 /* Chip Setup and Control Data Register */ |
@@ -82,7 +82,7 @@ static unsigned int elanfreq_get_cpu_frequency(unsigned int cpu) | |||
82 | u8 clockspeed_reg; /* Clock Speed Register */ | 82 | u8 clockspeed_reg; /* Clock Speed Register */ |
83 | 83 | ||
84 | local_irq_disable(); | 84 | local_irq_disable(); |
85 | outb_p(0x80,REG_CSCIR); | 85 | outb_p(0x80, REG_CSCIR); |
86 | clockspeed_reg = inb_p(REG_CSCDR); | 86 | clockspeed_reg = inb_p(REG_CSCDR); |
87 | local_irq_enable(); | 87 | local_irq_enable(); |
88 | 88 | ||
@@ -98,10 +98,10 @@ static unsigned int elanfreq_get_cpu_frequency(unsigned int cpu) | |||
98 | } | 98 | } |
99 | 99 | ||
100 | /* 33 MHz is not 32 MHz... */ | 100 | /* 33 MHz is not 32 MHz... */ |
101 | if ((clockspeed_reg & 0xE0)==0xA0) | 101 | if ((clockspeed_reg & 0xE0) == 0xA0) |
102 | return 33000; | 102 | return 33000; |
103 | 103 | ||
104 | return ((1<<((clockspeed_reg & 0xE0) >> 5)) * 1000); | 104 | return (1<<((clockspeed_reg & 0xE0) >> 5)) * 1000; |
105 | } | 105 | } |
106 | 106 | ||
107 | 107 | ||
@@ -117,7 +117,7 @@ static unsigned int elanfreq_get_cpu_frequency(unsigned int cpu) | |||
117 | * There is no return value. | 117 | * There is no return value. |
118 | */ | 118 | */ |
119 | 119 | ||
120 | static void elanfreq_set_cpu_state (unsigned int state) | 120 | static void elanfreq_set_cpu_state(unsigned int state) |
121 | { | 121 | { |
122 | struct cpufreq_freqs freqs; | 122 | struct cpufreq_freqs freqs; |
123 | 123 | ||
@@ -144,20 +144,20 @@ static void elanfreq_set_cpu_state (unsigned int state) | |||
144 | */ | 144 | */ |
145 | 145 | ||
146 | local_irq_disable(); | 146 | local_irq_disable(); |
147 | outb_p(0x40,REG_CSCIR); /* Disable hyperspeed mode */ | 147 | outb_p(0x40, REG_CSCIR); /* Disable hyperspeed mode */ |
148 | outb_p(0x00,REG_CSCDR); | 148 | outb_p(0x00, REG_CSCDR); |
149 | local_irq_enable(); /* wait till internal pipelines and */ | 149 | local_irq_enable(); /* wait till internal pipelines and */ |
150 | udelay(1000); /* buffers have cleaned up */ | 150 | udelay(1000); /* buffers have cleaned up */ |
151 | 151 | ||
152 | local_irq_disable(); | 152 | local_irq_disable(); |
153 | 153 | ||
154 | /* now, set the CPU clock speed register (0x80) */ | 154 | /* now, set the CPU clock speed register (0x80) */ |
155 | outb_p(0x80,REG_CSCIR); | 155 | outb_p(0x80, REG_CSCIR); |
156 | outb_p(elan_multiplier[state].val80h,REG_CSCDR); | 156 | outb_p(elan_multiplier[state].val80h, REG_CSCDR); |
157 | 157 | ||
158 | /* now, the hyperspeed bit in PMU Force Mode Register (0x40) */ | 158 | /* now, the hyperspeed bit in PMU Force Mode Register (0x40) */ |
159 | outb_p(0x40,REG_CSCIR); | 159 | outb_p(0x40, REG_CSCIR); |
160 | outb_p(elan_multiplier[state].val40h,REG_CSCDR); | 160 | outb_p(elan_multiplier[state].val40h, REG_CSCDR); |
161 | udelay(10000); | 161 | udelay(10000); |
162 | local_irq_enable(); | 162 | local_irq_enable(); |
163 | 163 | ||
@@ -173,12 +173,12 @@ static void elanfreq_set_cpu_state (unsigned int state) | |||
173 | * for the hardware supported by the driver. | 173 | * for the hardware supported by the driver. |
174 | */ | 174 | */ |
175 | 175 | ||
176 | static int elanfreq_verify (struct cpufreq_policy *policy) | 176 | static int elanfreq_verify(struct cpufreq_policy *policy) |
177 | { | 177 | { |
178 | return cpufreq_frequency_table_verify(policy, &elanfreq_table[0]); | 178 | return cpufreq_frequency_table_verify(policy, &elanfreq_table[0]); |
179 | } | 179 | } |
180 | 180 | ||
181 | static int elanfreq_target (struct cpufreq_policy *policy, | 181 | static int elanfreq_target(struct cpufreq_policy *policy, |
182 | unsigned int target_freq, | 182 | unsigned int target_freq, |
183 | unsigned int relation) | 183 | unsigned int relation) |
184 | { | 184 | { |
@@ -205,7 +205,7 @@ static int elanfreq_cpu_init(struct cpufreq_policy *policy) | |||
205 | 205 | ||
206 | /* capability check */ | 206 | /* capability check */ |
207 | if ((c->x86_vendor != X86_VENDOR_AMD) || | 207 | if ((c->x86_vendor != X86_VENDOR_AMD) || |
208 | (c->x86 != 4) || (c->x86_model!=10)) | 208 | (c->x86 != 4) || (c->x86_model != 10)) |
209 | return -ENODEV; | 209 | return -ENODEV; |
210 | 210 | ||
211 | /* max freq */ | 211 | /* max freq */ |
@@ -213,7 +213,7 @@ static int elanfreq_cpu_init(struct cpufreq_policy *policy) | |||
213 | max_freq = elanfreq_get_cpu_frequency(0); | 213 | max_freq = elanfreq_get_cpu_frequency(0); |
214 | 214 | ||
215 | /* table init */ | 215 | /* table init */ |
216 | for (i=0; (elanfreq_table[i].frequency != CPUFREQ_TABLE_END); i++) { | 216 | for (i = 0; (elanfreq_table[i].frequency != CPUFREQ_TABLE_END); i++) { |
217 | if (elanfreq_table[i].frequency > max_freq) | 217 | if (elanfreq_table[i].frequency > max_freq) |
218 | elanfreq_table[i].frequency = CPUFREQ_ENTRY_INVALID; | 218 | elanfreq_table[i].frequency = CPUFREQ_ENTRY_INVALID; |
219 | } | 219 | } |
@@ -224,7 +224,7 @@ static int elanfreq_cpu_init(struct cpufreq_policy *policy) | |||
224 | 224 | ||
225 | result = cpufreq_frequency_table_cpuinfo(policy, elanfreq_table); | 225 | result = cpufreq_frequency_table_cpuinfo(policy, elanfreq_table); |
226 | if (result) | 226 | if (result) |
227 | return (result); | 227 | return result; |
228 | 228 | ||
229 | cpufreq_frequency_table_get_attr(elanfreq_table, policy->cpu); | 229 | cpufreq_frequency_table_get_attr(elanfreq_table, policy->cpu); |
230 | return 0; | 230 | return 0; |
@@ -260,7 +260,7 @@ __setup("elanfreq=", elanfreq_setup); | |||
260 | #endif | 260 | #endif |
261 | 261 | ||
262 | 262 | ||
263 | static struct freq_attr* elanfreq_attr[] = { | 263 | static struct freq_attr *elanfreq_attr[] = { |
264 | &cpufreq_freq_attr_scaling_available_freqs, | 264 | &cpufreq_freq_attr_scaling_available_freqs, |
265 | NULL, | 265 | NULL, |
266 | }; | 266 | }; |
@@ -284,9 +284,9 @@ static int __init elanfreq_init(void) | |||
284 | 284 | ||
285 | /* Test if we have the right hardware */ | 285 | /* Test if we have the right hardware */ |
286 | if ((c->x86_vendor != X86_VENDOR_AMD) || | 286 | if ((c->x86_vendor != X86_VENDOR_AMD) || |
287 | (c->x86 != 4) || (c->x86_model!=10)) { | 287 | (c->x86 != 4) || (c->x86_model != 10)) { |
288 | printk(KERN_INFO "elanfreq: error: no Elan processor found!\n"); | 288 | printk(KERN_INFO "elanfreq: error: no Elan processor found!\n"); |
289 | return -ENODEV; | 289 | return -ENODEV; |
290 | } | 290 | } |
291 | return cpufreq_register_driver(&elanfreq_driver); | 291 | return cpufreq_register_driver(&elanfreq_driver); |
292 | } | 292 | } |
@@ -298,7 +298,7 @@ static void __exit elanfreq_exit(void) | |||
298 | } | 298 | } |
299 | 299 | ||
300 | 300 | ||
301 | module_param (max_freq, int, 0444); | 301 | module_param(max_freq, int, 0444); |
302 | 302 | ||
303 | MODULE_LICENSE("GPL"); | 303 | MODULE_LICENSE("GPL"); |
304 | MODULE_AUTHOR("Robert Schwebel <r.schwebel@pengutronix.de>, Sven Geggus <sven@geggus.net>"); | 304 | MODULE_AUTHOR("Robert Schwebel <r.schwebel@pengutronix.de>, Sven Geggus <sven@geggus.net>"); |