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| author | Wim Van Sebroeck <wim@iguana.be> | 2006-09-15 17:59:07 +0200 |
|---|---|---|
| committer | Wim Van Sebroeck <wim@iguana.be> | 2006-10-04 22:46:35 +0200 |
| commit | e223f01a822e999b0aea2e720e12d8bb3532da70 (patch) | |
| tree | 27286d5e673e667dfe45e931f2ba802d68a66338 /drivers/char | |
| parent | 3fdee8db010d5cbf890ec49332ac4946f3f63720 (diff) | |
| download | kernel_samsung_smdk4412-e223f01a822e999b0aea2e720e12d8bb3532da70.zip kernel_samsung_smdk4412-e223f01a822e999b0aea2e720e12d8bb3532da70.tar.gz kernel_samsung_smdk4412-e223f01a822e999b0aea2e720e12d8bb3532da70.tar.bz2 | |
[WATCHDOG] w83697hf/hg WDT driver - autodetect patch
Change the autodetect code so that it is more generic.
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Diffstat (limited to 'drivers/char')
| -rw-r--r-- | drivers/char/watchdog/w83697hf_wdt.c | 32 |
1 files changed, 17 insertions, 15 deletions
diff --git a/drivers/char/watchdog/w83697hf_wdt.c b/drivers/char/watchdog/w83697hf_wdt.c index 21052de..7768b55 100644 --- a/drivers/char/watchdog/w83697hf_wdt.c +++ b/drivers/char/watchdog/w83697hf_wdt.c @@ -369,33 +369,35 @@ w83697hf_check_wdt(void) return -EIO; } +static int w83697hf_ioports[] = { 0x2e, 0x4e, 0x00 }; + static int __init wdt_init(void) { - int ret, autodetect; + int ret, i, found = 0; spin_lock_init(&io_lock); printk (KERN_INFO PFX "WDT driver for W83697HF/HG initializing\n"); - autodetect = wdt_io == 0; - if (autodetect) - wdt_io = 0x2e; - - if (!w83697hf_check_wdt()) - goto found; - - if (autodetect) { - wdt_io = 0x4e; + if (wdt_io == 0) { + /* we will autodetect the W83697HF/HG watchdog */ + for (i = 0; ((!found) && (w83697hf_ioports[i] != 0)); i++) { + wdt_io = w83697hf_ioports[i]; + if (!w83697hf_check_wdt()) + found++; + } + } else { if (!w83697hf_check_wdt()) - goto found; + found++; } - printk (KERN_ERR PFX "No W83697HF/HG could be found\n"); - ret = -EIO; - goto out; + if (!found) { + printk (KERN_ERR PFX "No W83697HF/HG could be found\n"); + ret = -EIO; + goto out; + } -found: w83697hf_init(); wdt_disable(); /* Disable watchdog until first use */ |