diff options
Diffstat (limited to 'drivers')
-rw-r--r-- | drivers/hwmon/f71805f.c | 57 |
1 files changed, 29 insertions, 28 deletions
diff --git a/drivers/hwmon/f71805f.c b/drivers/hwmon/f71805f.c index 8e810f05d0ae..885465df6e6a 100644 --- a/drivers/hwmon/f71805f.c +++ b/drivers/hwmon/f71805f.c | |||
@@ -30,6 +30,7 @@ | |||
30 | #include <linux/hwmon.h> | 30 | #include <linux/hwmon.h> |
31 | #include <linux/hwmon-sysfs.h> | 31 | #include <linux/hwmon-sysfs.h> |
32 | #include <linux/err.h> | 32 | #include <linux/err.h> |
33 | #include <linux/mutex.h> | ||
33 | #include <asm/io.h> | 34 | #include <asm/io.h> |
34 | 35 | ||
35 | static struct platform_device *pdev; | 36 | static struct platform_device *pdev; |
@@ -131,10 +132,10 @@ static struct resource f71805f_resource __initdata = { | |||
131 | struct f71805f_data { | 132 | struct f71805f_data { |
132 | unsigned short addr; | 133 | unsigned short addr; |
133 | const char *name; | 134 | const char *name; |
134 | struct semaphore lock; | 135 | struct mutex lock; |
135 | struct class_device *class_dev; | 136 | struct class_device *class_dev; |
136 | 137 | ||
137 | struct semaphore update_lock; | 138 | struct mutex update_lock; |
138 | char valid; /* !=0 if following fields are valid */ | 139 | char valid; /* !=0 if following fields are valid */ |
139 | unsigned long last_updated; /* In jiffies */ | 140 | unsigned long last_updated; /* In jiffies */ |
140 | unsigned long last_limits; /* In jiffies */ | 141 | unsigned long last_limits; /* In jiffies */ |
@@ -224,20 +225,20 @@ static u8 f71805f_read8(struct f71805f_data *data, u8 reg) | |||
224 | { | 225 | { |
225 | u8 val; | 226 | u8 val; |
226 | 227 | ||
227 | down(&data->lock); | 228 | mutex_lock(&data->lock); |
228 | outb(reg, data->addr + ADDR_REG_OFFSET); | 229 | outb(reg, data->addr + ADDR_REG_OFFSET); |
229 | val = inb(data->addr + DATA_REG_OFFSET); | 230 | val = inb(data->addr + DATA_REG_OFFSET); |
230 | up(&data->lock); | 231 | mutex_unlock(&data->lock); |
231 | 232 | ||
232 | return val; | 233 | return val; |
233 | } | 234 | } |
234 | 235 | ||
235 | static void f71805f_write8(struct f71805f_data *data, u8 reg, u8 val) | 236 | static void f71805f_write8(struct f71805f_data *data, u8 reg, u8 val) |
236 | { | 237 | { |
237 | down(&data->lock); | 238 | mutex_lock(&data->lock); |
238 | outb(reg, data->addr + ADDR_REG_OFFSET); | 239 | outb(reg, data->addr + ADDR_REG_OFFSET); |
239 | outb(val, data->addr + DATA_REG_OFFSET); | 240 | outb(val, data->addr + DATA_REG_OFFSET); |
240 | up(&data->lock); | 241 | mutex_unlock(&data->lock); |
241 | } | 242 | } |
242 | 243 | ||
243 | /* It is important to read the MSB first, because doing so latches the | 244 | /* It is important to read the MSB first, because doing so latches the |
@@ -246,24 +247,24 @@ static u16 f71805f_read16(struct f71805f_data *data, u8 reg) | |||
246 | { | 247 | { |
247 | u16 val; | 248 | u16 val; |
248 | 249 | ||
249 | down(&data->lock); | 250 | mutex_lock(&data->lock); |
250 | outb(reg, data->addr + ADDR_REG_OFFSET); | 251 | outb(reg, data->addr + ADDR_REG_OFFSET); |
251 | val = inb(data->addr + DATA_REG_OFFSET) << 8; | 252 | val = inb(data->addr + DATA_REG_OFFSET) << 8; |
252 | outb(++reg, data->addr + ADDR_REG_OFFSET); | 253 | outb(++reg, data->addr + ADDR_REG_OFFSET); |
253 | val |= inb(data->addr + DATA_REG_OFFSET); | 254 | val |= inb(data->addr + DATA_REG_OFFSET); |
254 | up(&data->lock); | 255 | mutex_unlock(&data->lock); |
255 | 256 | ||
256 | return val; | 257 | return val; |
257 | } | 258 | } |
258 | 259 | ||
259 | static void f71805f_write16(struct f71805f_data *data, u8 reg, u16 val) | 260 | static void f71805f_write16(struct f71805f_data *data, u8 reg, u16 val) |
260 | { | 261 | { |
261 | down(&data->lock); | 262 | mutex_lock(&data->lock); |
262 | outb(reg, data->addr + ADDR_REG_OFFSET); | 263 | outb(reg, data->addr + ADDR_REG_OFFSET); |
263 | outb(val >> 8, data->addr + DATA_REG_OFFSET); | 264 | outb(val >> 8, data->addr + DATA_REG_OFFSET); |
264 | outb(++reg, data->addr + ADDR_REG_OFFSET); | 265 | outb(++reg, data->addr + ADDR_REG_OFFSET); |
265 | outb(val & 0xff, data->addr + DATA_REG_OFFSET); | 266 | outb(val & 0xff, data->addr + DATA_REG_OFFSET); |
266 | up(&data->lock); | 267 | mutex_unlock(&data->lock); |
267 | } | 268 | } |
268 | 269 | ||
269 | static struct f71805f_data *f71805f_update_device(struct device *dev) | 270 | static struct f71805f_data *f71805f_update_device(struct device *dev) |
@@ -271,7 +272,7 @@ static struct f71805f_data *f71805f_update_device(struct device *dev) | |||
271 | struct f71805f_data *data = dev_get_drvdata(dev); | 272 | struct f71805f_data *data = dev_get_drvdata(dev); |
272 | int nr; | 273 | int nr; |
273 | 274 | ||
274 | down(&data->update_lock); | 275 | mutex_lock(&data->update_lock); |
275 | 276 | ||
276 | /* Limit registers cache is refreshed after 60 seconds */ | 277 | /* Limit registers cache is refreshed after 60 seconds */ |
277 | if (time_after(jiffies, data->last_updated + 60 * HZ) | 278 | if (time_after(jiffies, data->last_updated + 60 * HZ) |
@@ -323,7 +324,7 @@ static struct f71805f_data *f71805f_update_device(struct device *dev) | |||
323 | data->valid = 1; | 324 | data->valid = 1; |
324 | } | 325 | } |
325 | 326 | ||
326 | up(&data->update_lock); | 327 | mutex_unlock(&data->update_lock); |
327 | 328 | ||
328 | return data; | 329 | return data; |
329 | } | 330 | } |
@@ -362,10 +363,10 @@ static ssize_t set_in0_max(struct device *dev, struct device_attribute | |||
362 | struct f71805f_data *data = dev_get_drvdata(dev); | 363 | struct f71805f_data *data = dev_get_drvdata(dev); |
363 | long val = simple_strtol(buf, NULL, 10); | 364 | long val = simple_strtol(buf, NULL, 10); |
364 | 365 | ||
365 | down(&data->update_lock); | 366 | mutex_lock(&data->update_lock); |
366 | data->in_high[0] = in0_to_reg(val); | 367 | data->in_high[0] = in0_to_reg(val); |
367 | f71805f_write8(data, F71805F_REG_IN_HIGH(0), data->in_high[0]); | 368 | f71805f_write8(data, F71805F_REG_IN_HIGH(0), data->in_high[0]); |
368 | up(&data->update_lock); | 369 | mutex_unlock(&data->update_lock); |
369 | 370 | ||
370 | return count; | 371 | return count; |
371 | } | 372 | } |
@@ -376,10 +377,10 @@ static ssize_t set_in0_min(struct device *dev, struct device_attribute | |||
376 | struct f71805f_data *data = dev_get_drvdata(dev); | 377 | struct f71805f_data *data = dev_get_drvdata(dev); |
377 | long val = simple_strtol(buf, NULL, 10); | 378 | long val = simple_strtol(buf, NULL, 10); |
378 | 379 | ||
379 | down(&data->update_lock); | 380 | mutex_lock(&data->update_lock); |
380 | data->in_low[0] = in0_to_reg(val); | 381 | data->in_low[0] = in0_to_reg(val); |
381 | f71805f_write8(data, F71805F_REG_IN_LOW(0), data->in_low[0]); | 382 | f71805f_write8(data, F71805F_REG_IN_LOW(0), data->in_low[0]); |
382 | up(&data->update_lock); | 383 | mutex_unlock(&data->update_lock); |
383 | 384 | ||
384 | return count; | 385 | return count; |
385 | } | 386 | } |
@@ -422,10 +423,10 @@ static ssize_t set_in_max(struct device *dev, struct device_attribute | |||
422 | int nr = attr->index; | 423 | int nr = attr->index; |
423 | long val = simple_strtol(buf, NULL, 10); | 424 | long val = simple_strtol(buf, NULL, 10); |
424 | 425 | ||
425 | down(&data->update_lock); | 426 | mutex_lock(&data->update_lock); |
426 | data->in_high[nr] = in_to_reg(val); | 427 | data->in_high[nr] = in_to_reg(val); |
427 | f71805f_write8(data, F71805F_REG_IN_HIGH(nr), data->in_high[nr]); | 428 | f71805f_write8(data, F71805F_REG_IN_HIGH(nr), data->in_high[nr]); |
428 | up(&data->update_lock); | 429 | mutex_unlock(&data->update_lock); |
429 | 430 | ||
430 | return count; | 431 | return count; |
431 | } | 432 | } |
@@ -438,10 +439,10 @@ static ssize_t set_in_min(struct device *dev, struct device_attribute | |||
438 | int nr = attr->index; | 439 | int nr = attr->index; |
439 | long val = simple_strtol(buf, NULL, 10); | 440 | long val = simple_strtol(buf, NULL, 10); |
440 | 441 | ||
441 | down(&data->update_lock); | 442 | mutex_lock(&data->update_lock); |
442 | data->in_low[nr] = in_to_reg(val); | 443 | data->in_low[nr] = in_to_reg(val); |
443 | f71805f_write8(data, F71805F_REG_IN_LOW(nr), data->in_low[nr]); | 444 | f71805f_write8(data, F71805F_REG_IN_LOW(nr), data->in_low[nr]); |
444 | up(&data->update_lock); | 445 | mutex_unlock(&data->update_lock); |
445 | 446 | ||
446 | return count; | 447 | return count; |
447 | } | 448 | } |
@@ -474,10 +475,10 @@ static ssize_t set_fan_min(struct device *dev, struct device_attribute | |||
474 | int nr = attr->index; | 475 | int nr = attr->index; |
475 | long val = simple_strtol(buf, NULL, 10); | 476 | long val = simple_strtol(buf, NULL, 10); |
476 | 477 | ||
477 | down(&data->update_lock); | 478 | mutex_lock(&data->update_lock); |
478 | data->fan_low[nr] = fan_to_reg(val); | 479 | data->fan_low[nr] = fan_to_reg(val); |
479 | f71805f_write16(data, F71805F_REG_FAN_LOW(nr), data->fan_low[nr]); | 480 | f71805f_write16(data, F71805F_REG_FAN_LOW(nr), data->fan_low[nr]); |
480 | up(&data->update_lock); | 481 | mutex_unlock(&data->update_lock); |
481 | 482 | ||
482 | return count; | 483 | return count; |
483 | } | 484 | } |
@@ -531,10 +532,10 @@ static ssize_t set_temp_max(struct device *dev, struct device_attribute | |||
531 | int nr = attr->index; | 532 | int nr = attr->index; |
532 | long val = simple_strtol(buf, NULL, 10); | 533 | long val = simple_strtol(buf, NULL, 10); |
533 | 534 | ||
534 | down(&data->update_lock); | 535 | mutex_lock(&data->update_lock); |
535 | data->temp_high[nr] = temp_to_reg(val); | 536 | data->temp_high[nr] = temp_to_reg(val); |
536 | f71805f_write8(data, F71805F_REG_TEMP_HIGH(nr), data->temp_high[nr]); | 537 | f71805f_write8(data, F71805F_REG_TEMP_HIGH(nr), data->temp_high[nr]); |
537 | up(&data->update_lock); | 538 | mutex_unlock(&data->update_lock); |
538 | 539 | ||
539 | return count; | 540 | return count; |
540 | } | 541 | } |
@@ -547,10 +548,10 @@ static ssize_t set_temp_hyst(struct device *dev, struct device_attribute | |||
547 | int nr = attr->index; | 548 | int nr = attr->index; |
548 | long val = simple_strtol(buf, NULL, 10); | 549 | long val = simple_strtol(buf, NULL, 10); |
549 | 550 | ||
550 | down(&data->update_lock); | 551 | mutex_lock(&data->update_lock); |
551 | data->temp_hyst[nr] = temp_to_reg(val); | 552 | data->temp_hyst[nr] = temp_to_reg(val); |
552 | f71805f_write8(data, F71805F_REG_TEMP_HYST(nr), data->temp_hyst[nr]); | 553 | f71805f_write8(data, F71805F_REG_TEMP_HYST(nr), data->temp_hyst[nr]); |
553 | up(&data->update_lock); | 554 | mutex_unlock(&data->update_lock); |
554 | 555 | ||
555 | return count; | 556 | return count; |
556 | } | 557 | } |
@@ -711,9 +712,9 @@ static int __devinit f71805f_probe(struct platform_device *pdev) | |||
711 | 712 | ||
712 | res = platform_get_resource(pdev, IORESOURCE_IO, 0); | 713 | res = platform_get_resource(pdev, IORESOURCE_IO, 0); |
713 | data->addr = res->start; | 714 | data->addr = res->start; |
714 | init_MUTEX(&data->lock); | 715 | mutex_init(&data->lock); |
715 | data->name = "f71805f"; | 716 | data->name = "f71805f"; |
716 | init_MUTEX(&data->update_lock); | 717 | mutex_init(&data->update_lock); |
717 | 718 | ||
718 | platform_set_drvdata(pdev, data); | 719 | platform_set_drvdata(pdev, data); |
719 | 720 | ||