[WATCHDOG] at32ap700x_wdt.c - timeout module parameter patch
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>
diff --git a/drivers/char/watchdog/at32ap700x_wdt.c b/drivers/char/watchdog/at32ap700x_wdt.c
index 8abe1c7..6e7c958 100644
--- a/drivers/char/watchdog/at32ap700x_wdt.c
+++ b/drivers/char/watchdog/at32ap700x_wdt.c
@@ -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 @@
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 @@
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;
