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path: root/drivers/watchdog/sch311x_wdt.c
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2012-07-23watchdog: sch311x_wdt: Fix Polarity when starting watchdogWim Van Sebroeck1-2/+8
Some motherboards like the Advantech ARK3400 documentation use a non-inverted GPIO pin. We fix this by assuming that the BIOS will set the Polarity bit for the GPIO correctly at startup and we keep the Bit-setting intact when we start and stop the watchdog. Reported-by: Jean-François Deverge <jf.deverge@gmail.com> Signed-off-by: Dave Mueller <d.mueller@elsoft.ch> Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2012-05-23watchdog: sch311x_wdt.c: Remove RESGENDave Mueller1-34/+5
The SCH311x chip contains 2 watchdogs. One is the watchdog programmable by the runtime register at address 0x65-0x68, the other is the watchdog inside the power on reset generator. This second watchdog has a fixed timeout value of ~1.6 seconds and is configurable only by the RESGEN register. The BIOS normally takes care of the RESGEN watchdog and disables it (at least) before the OS is booted. Unfortunately the sch311x_wdt driver clears bit 0 of the RESGEN register which has the effect that at the latest 1.6 seconds later, a POR is triggered. The attached patch fixes this problem by completely removing any reference to the RESGEN watchdog from the sch311x_wdt driver. Signed-off-by: Dave Mueller <d.mueller@elsoft.ch> Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2012-03-27watchdog: nowayout is boolWim Van Sebroeck1-2/+2
nowayout is actually a boolean value. So make it bool for all watchdog device drivers. Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2012-03-27watchdog: Use pr_<fmt> and pr_<level>Joe Perches1-7/+6
Use the current logging styles. Make sure all output has a prefix. Add missing newlines. Remove now unnecessary PFX, NAME, and miscellaneous other #defines. Coalesce formats. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2011-07-26watchdog: remove empty pm-functionsWolfram Sang1-5/+0
While checking what watchdog drivers usually do in suspend/resume to spot common behaviour for the watchdog framework, I found these drivers which do nothing but add some cruft. Remove it, it is superfluous. New approaches should probably be done with pm_ops anyway. Signed-off-by: Wolfram Sang <w.sang@pengutronix.de> Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2011-03-31Fix common misspellingsLucas De Marchi1-1/+1
Fixes generated by 'codespell' and manually reviewed. Signed-off-by: Lucas De Marchi <lucas.demarchi@profusion.mobi>
2011-03-14watchdog: sch311x_wdt: fix printk conditionDan Carpenter1-1/+1
"==" has higher precedence than "&". Since if (sch311x_sio_inb(sio_config_port, 0x30) & (0x01 == 0)) is always false the message is never printed. Signed-off-by: Dan Carpenter <error27@gmail.com> Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2011-03-14watchdog: sch311x_wdt: Fix LDN active checkWim Van Sebroeck1-1/+1
if (sch311x_sio_inb(sio_config_port, 0x30) && 0x01 == 0) -> && should be & Reported-By: Toralf Förster <toralf.foerster@gmx.de> Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2010-08-08watchdog: sch311x_wdt.c: set parent before registeriing the misc device in ↵Wim Van Sebroeck1-2/+2
probe() function Set the paranet of the misc_device before we register the misc_device. Reported-by: Akinobu Mita <akinobu.mita@gmail.com> Signed-off-by: Wim Van sebroeck <wim@iguana.be>
2010-03-07[WATCHDOG] watchdog_info constifyWim Van Sebroeck1-1/+1
make the watchdog_info struct const where possible. Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2008-12-31[WATCHDOG] Add SMSC SCH311x Watchdog Timer.Wim Van Sebroeck1-0/+578
Add a watchdog driver for the hardware watchdog timer on the SMSC SCH3112, SCH3114 and SCH3116 Super IO chipset. Tested-by: Marco Chiappero <marco@absence.it> Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
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