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[WATCHDOG] at32ap700x_wdt.c - timeout module parameter patch

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integrate the timeout/heartbeat as a module parameter and not as
a CONFIG_* value.

Signed-off-by: Hans-Christian Egtvedt <hcegtvedt@atmel.com>
Cc: Haavard Skinnemoen <hskinnemoen@atmel.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Cc: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
Wim Van Sebroeck 2007-06-18 22:49:35 +02:00
parent c0ead7e0ff
commit 726c9f611a
2 changed files with 13 additions and 16 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

11
drivers/char/watchdog/Kconfig
View file

@ -196,17 +196,6 @@ config AT32AP700X_WDT
Watchdog timer embedded into AT32AP700x devices. This will reboot
your system when the timeout is reached.
config AT32AP700X_WDT_TIMEOUT
int "Timeout value for AT32AP700x watchdog"
depends on AT32AP700X_WDT
default "2"
range 1 2
help
Sets the timeout value for the watchdog in AT32AP700x devices.
Limited by hardware to be 1 or 2 seconds.
Set to 2 seconds by default.
# X86 (i386 + ia64 + x86_64) Architecture
config ACQUIRE_WDT

18
drivers/char/watchdog/at32ap700x_wdt.c
View file

@ -20,8 +20,15 @@
#include <linux/io.h>
#define TIMEOUT_MIN 1
#define TIMEOUT_DEFAULT CONFIG_AT32AP700X_WDT_TIMEOUT
#define TIMEOUT_MAX 2
#define TIMEOUT_DEFAULT TIMEOUT_MAX
/* module parameters */
static int timeout = TIMEOUT_DEFAULT;
module_param(timeout, int, 0);
MODULE_PARM_DESC(timeout,
"Timeout value. Limited to be 1 or 2 seconds. (default="
__MODULE_STRING(TIMEOUT_DEFAULT) ")");
/* Watchdog registers and write/read macro */
#define WDT_CTRL 0x00
@ -233,11 +240,11 @@ static int __init at32_wdt_probe(struct platform_device *pdev)
wdt->miscdev.name = "watchdog";
wdt->miscdev.fops = &at32_wdt_fops;
if (at32_wdt_settimeout(TIMEOUT_DEFAULT)) {
at32_wdt_settimeout(TIMEOUT_MAX);
if (at32_wdt_settimeout(timeout)) {
at32_wdt_settimeout(TIMEOUT_DEFAULT);
dev_dbg(&pdev->dev,
"default timeout invalid, set to %d sec.\n",
TIMEOUT_MAX);
TIMEOUT_DEFAULT);
}
ret = misc_register(&wdt->miscdev);
@ -248,7 +255,8 @@ static int __init at32_wdt_probe(struct platform_device *pdev)
platform_set_drvdata(pdev, wdt);
wdt->miscdev.parent = &pdev->dev;
dev_info(&pdev->dev, "AT32AP700X WDT at 0x%p\n", wdt->regs);
dev_info(&pdev->dev, "AT32AP700X WDT at 0x%p, timeout %d sec\n",
wdt->regs, wdt->timeout);
return 0;