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author | Linus Torvalds <torvalds@linux-foundation.org> | 2012-05-23 18:42:42 -0400 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-05-23 18:42:42 -0400 |
commit | 0b87da68a0f0a7bf7f7446cf64f92e672bd68ef8 (patch) | |
tree | cc5ddfd411bc9c5d6fb828b86eba92f50294805e /drivers/watchdog/sch311x_wdt.c | |
parent | 59d0952b43552570e0f1c3ff91ebb16d4caec171 (diff) | |
parent | cad19fa66469d2a745fae0c168833d5d33d64489 (diff) |
Merge git://www.linux-watchdog.org/linux-watchdog
Pull first set of watchdog updates from Wim Van Sebroeck:
"This pull contains:
- The removal of ixp2000_wdt
- The addition of ie6xx_wdt
- Some documentation fixes
- Small fixes and improvements
(Note: Part 2 will contain generic watchdog core changes + conversion
of some more drivers)"
* git://www.linux-watchdog.org/linux-watchdog:
Documentation/watchdog: Fix the file descriptor leak when no cmdline arg given
Documentation/watchdog: close the fd when cmdline arg given
Documentation/watchdog: Fix a small typo
watchdog: s3c2410_wdt: Set timeout to actually achieved timeout
watchdog: wm831x: Convert to gpio_request_one()
watchdog: via_wdt: depends on PCI
watchdog: ie6xx_wdt needs io.h
watchdog: ie6xx_wdt.c: fix printk format warning
watchdog: Add watchdog driver for Intel Atom E6XX
watchdog: it87_wdt: Add support for IT8728F watchdog.
watchdog: i6300esb: don't depend on X86
watchdog: Use module_pci_driver
watchdog: sch311x_wdt.c: Remove RESGEN
watchdog: s3c2410-wdt: Use of_match_ptr().
watchdog: Device tree support for pnx4008-wdt
watchdog: ar7_wdt.c: use devm_request_and_ioremap
watchdog: remove ixp2000 driver
watchdog: sp5100_tco.c: quiet sparse noise about using plain integer was NULL pointer
Diffstat (limited to 'drivers/watchdog/sch311x_wdt.c')
-rw-r--r-- | drivers/watchdog/sch311x_wdt.c | 39 |
1 files changed, 5 insertions, 34 deletions
diff --git a/drivers/watchdog/sch311x_wdt.c b/drivers/watchdog/sch311x_wdt.c index bd86f32d63ab..f8477002b728 100644 --- a/drivers/watchdog/sch311x_wdt.c +++ b/drivers/watchdog/sch311x_wdt.c | |||
@@ -41,7 +41,6 @@ | |||
41 | #define DRV_NAME "sch311x_wdt" | 41 | #define DRV_NAME "sch311x_wdt" |
42 | 42 | ||
43 | /* Runtime registers */ | 43 | /* Runtime registers */ |
44 | #define RESGEN 0x1d | ||
45 | #define GP60 0x47 | 44 | #define GP60 0x47 |
46 | #define WDT_TIME_OUT 0x65 | 45 | #define WDT_TIME_OUT 0x65 |
47 | #define WDT_VAL 0x66 | 46 | #define WDT_VAL 0x66 |
@@ -69,10 +68,6 @@ static unsigned short force_id; | |||
69 | module_param(force_id, ushort, 0); | 68 | module_param(force_id, ushort, 0); |
70 | MODULE_PARM_DESC(force_id, "Override the detected device ID"); | 69 | MODULE_PARM_DESC(force_id, "Override the detected device ID"); |
71 | 70 | ||
72 | static unsigned short therm_trip; | ||
73 | module_param(therm_trip, ushort, 0); | ||
74 | MODULE_PARM_DESC(therm_trip, "Should a ThermTrip trigger the reset generator"); | ||
75 | |||
76 | #define WATCHDOG_TIMEOUT 60 /* 60 sec default timeout */ | 71 | #define WATCHDOG_TIMEOUT 60 /* 60 sec default timeout */ |
77 | static int timeout = WATCHDOG_TIMEOUT; /* in seconds */ | 72 | static int timeout = WATCHDOG_TIMEOUT; /* in seconds */ |
78 | module_param(timeout, int, 0); | 73 | module_param(timeout, int, 0); |
@@ -358,26 +353,16 @@ static struct miscdevice sch311x_wdt_miscdev = { | |||
358 | static int __devinit sch311x_wdt_probe(struct platform_device *pdev) | 353 | static int __devinit sch311x_wdt_probe(struct platform_device *pdev) |
359 | { | 354 | { |
360 | struct device *dev = &pdev->dev; | 355 | struct device *dev = &pdev->dev; |
361 | unsigned char val; | ||
362 | int err; | 356 | int err; |
363 | 357 | ||
364 | spin_lock_init(&sch311x_wdt_data.io_lock); | 358 | spin_lock_init(&sch311x_wdt_data.io_lock); |
365 | 359 | ||
366 | if (!request_region(sch311x_wdt_data.runtime_reg + RESGEN, 1, | ||
367 | DRV_NAME)) { | ||
368 | dev_err(dev, "Failed to request region 0x%04x-0x%04x.\n", | ||
369 | sch311x_wdt_data.runtime_reg + RESGEN, | ||
370 | sch311x_wdt_data.runtime_reg + RESGEN); | ||
371 | err = -EBUSY; | ||
372 | goto exit; | ||
373 | } | ||
374 | |||
375 | if (!request_region(sch311x_wdt_data.runtime_reg + GP60, 1, DRV_NAME)) { | 360 | if (!request_region(sch311x_wdt_data.runtime_reg + GP60, 1, DRV_NAME)) { |
376 | dev_err(dev, "Failed to request region 0x%04x-0x%04x.\n", | 361 | dev_err(dev, "Failed to request region 0x%04x-0x%04x.\n", |
377 | sch311x_wdt_data.runtime_reg + GP60, | 362 | sch311x_wdt_data.runtime_reg + GP60, |
378 | sch311x_wdt_data.runtime_reg + GP60); | 363 | sch311x_wdt_data.runtime_reg + GP60); |
379 | err = -EBUSY; | 364 | err = -EBUSY; |
380 | goto exit_release_region; | 365 | goto exit; |
381 | } | 366 | } |
382 | 367 | ||
383 | if (!request_region(sch311x_wdt_data.runtime_reg + WDT_TIME_OUT, 4, | 368 | if (!request_region(sch311x_wdt_data.runtime_reg + WDT_TIME_OUT, 4, |
@@ -386,7 +371,7 @@ static int __devinit sch311x_wdt_probe(struct platform_device *pdev) | |||
386 | sch311x_wdt_data.runtime_reg + WDT_TIME_OUT, | 371 | sch311x_wdt_data.runtime_reg + WDT_TIME_OUT, |
387 | sch311x_wdt_data.runtime_reg + WDT_CTRL); | 372 | sch311x_wdt_data.runtime_reg + WDT_CTRL); |
388 | err = -EBUSY; | 373 | err = -EBUSY; |
389 | goto exit_release_region2; | 374 | goto exit_release_region; |
390 | } | 375 | } |
391 | 376 | ||
392 | /* Make sure that the watchdog is not running */ | 377 | /* Make sure that the watchdog is not running */ |
@@ -414,24 +399,13 @@ static int __devinit sch311x_wdt_probe(struct platform_device *pdev) | |||
414 | /* Get status at boot */ | 399 | /* Get status at boot */ |
415 | sch311x_wdt_get_status(&sch311x_wdt_data.boot_status); | 400 | sch311x_wdt_get_status(&sch311x_wdt_data.boot_status); |
416 | 401 | ||
417 | /* enable watchdog */ | ||
418 | /* -- Reset Generator -- | ||
419 | * Bit 0 Enable Watchdog Timer Generation: 0* = Enabled, 1 = Disabled | ||
420 | * Bit 1 Thermtrip Source Select: O* = No Source, 1 = Source | ||
421 | * Bit 2 WDT2_CTL: WDT input bit | ||
422 | * Bit 3-7 Reserved | ||
423 | */ | ||
424 | outb(0, sch311x_wdt_data.runtime_reg + RESGEN); | ||
425 | val = therm_trip ? 0x06 : 0x04; | ||
426 | outb(val, sch311x_wdt_data.runtime_reg + RESGEN); | ||
427 | |||
428 | sch311x_wdt_miscdev.parent = dev; | 402 | sch311x_wdt_miscdev.parent = dev; |
429 | 403 | ||
430 | err = misc_register(&sch311x_wdt_miscdev); | 404 | err = misc_register(&sch311x_wdt_miscdev); |
431 | if (err != 0) { | 405 | if (err != 0) { |
432 | dev_err(dev, "cannot register miscdev on minor=%d (err=%d)\n", | 406 | dev_err(dev, "cannot register miscdev on minor=%d (err=%d)\n", |
433 | WATCHDOG_MINOR, err); | 407 | WATCHDOG_MINOR, err); |
434 | goto exit_release_region3; | 408 | goto exit_release_region2; |
435 | } | 409 | } |
436 | 410 | ||
437 | dev_info(dev, | 411 | dev_info(dev, |
@@ -440,12 +414,10 @@ static int __devinit sch311x_wdt_probe(struct platform_device *pdev) | |||
440 | 414 | ||
441 | return 0; | 415 | return 0; |
442 | 416 | ||
443 | exit_release_region3: | ||
444 | release_region(sch311x_wdt_data.runtime_reg + WDT_TIME_OUT, 4); | ||
445 | exit_release_region2: | 417 | exit_release_region2: |
446 | release_region(sch311x_wdt_data.runtime_reg + GP60, 1); | 418 | release_region(sch311x_wdt_data.runtime_reg + WDT_TIME_OUT, 4); |
447 | exit_release_region: | 419 | exit_release_region: |
448 | release_region(sch311x_wdt_data.runtime_reg + RESGEN, 1); | 420 | release_region(sch311x_wdt_data.runtime_reg + GP60, 1); |
449 | sch311x_wdt_data.runtime_reg = 0; | 421 | sch311x_wdt_data.runtime_reg = 0; |
450 | exit: | 422 | exit: |
451 | return err; | 423 | return err; |
@@ -461,7 +433,6 @@ static int __devexit sch311x_wdt_remove(struct platform_device *pdev) | |||
461 | misc_deregister(&sch311x_wdt_miscdev); | 433 | misc_deregister(&sch311x_wdt_miscdev); |
462 | release_region(sch311x_wdt_data.runtime_reg + WDT_TIME_OUT, 4); | 434 | release_region(sch311x_wdt_data.runtime_reg + WDT_TIME_OUT, 4); |
463 | release_region(sch311x_wdt_data.runtime_reg + GP60, 1); | 435 | release_region(sch311x_wdt_data.runtime_reg + GP60, 1); |
464 | release_region(sch311x_wdt_data.runtime_reg + RESGEN, 1); | ||
465 | sch311x_wdt_data.runtime_reg = 0; | 436 | sch311x_wdt_data.runtime_reg = 0; |
466 | return 0; | 437 | return 0; |
467 | } | 438 | } |