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path: root/drivers/watchdog/sch311x_wdt.c
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Diffstat (limited to 'drivers/watchdog/sch311x_wdt.c')
-rw-r--r--drivers/watchdog/sch311x_wdt.c39
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 @@
#define DRV_NAME "sch311x_wdt"
/* Runtime registers */
-#define RESGEN 0x1d
#define GP60 0x47
#define WDT_TIME_OUT 0x65
#define WDT_VAL 0x66
@@ -69,10 +68,6 @@ static unsigned short force_id;
module_param(force_id, ushort, 0);
MODULE_PARM_DESC(force_id, "Override the detected device ID");
-static unsigned short therm_trip;
-module_param(therm_trip, ushort, 0);
-MODULE_PARM_DESC(therm_trip, "Should a ThermTrip trigger the reset generator");
-
#define WATCHDOG_TIMEOUT 60 /* 60 sec default timeout */
static int timeout = WATCHDOG_TIMEOUT; /* in seconds */
module_param(timeout, int, 0);
@@ -358,26 +353,16 @@ static struct miscdevice sch311x_wdt_miscdev = {
static int __devinit sch311x_wdt_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
- unsigned char val;
int err;
spin_lock_init(&sch311x_wdt_data.io_lock);
- if (!request_region(sch311x_wdt_data.runtime_reg + RESGEN, 1,
- DRV_NAME)) {
- dev_err(dev, "Failed to request region 0x%04x-0x%04x.\n",
- sch311x_wdt_data.runtime_reg + RESGEN,
- sch311x_wdt_data.runtime_reg + RESGEN);
- err = -EBUSY;
- goto exit;
- }
-
if (!request_region(sch311x_wdt_data.runtime_reg + GP60, 1, DRV_NAME)) {
dev_err(dev, "Failed to request region 0x%04x-0x%04x.\n",
sch311x_wdt_data.runtime_reg + GP60,
sch311x_wdt_data.runtime_reg + GP60);
err = -EBUSY;
- goto exit_release_region;
+ goto exit;
}
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)
sch311x_wdt_data.runtime_reg + WDT_TIME_OUT,
sch311x_wdt_data.runtime_reg + WDT_CTRL);
err = -EBUSY;
- goto exit_release_region2;
+ goto exit_release_region;
}
/* Make sure that the watchdog is not running */
@@ -414,24 +399,13 @@ static int __devinit sch311x_wdt_probe(struct platform_device *pdev)
/* Get status at boot */
sch311x_wdt_get_status(&sch311x_wdt_data.boot_status);
- /* enable watchdog */
- /* -- Reset Generator --
- * Bit 0 Enable Watchdog Timer Generation: 0* = Enabled, 1 = Disabled
- * Bit 1 Thermtrip Source Select: O* = No Source, 1 = Source
- * Bit 2 WDT2_CTL: WDT input bit
- * Bit 3-7 Reserved
- */
- outb(0, sch311x_wdt_data.runtime_reg + RESGEN);
- val = therm_trip ? 0x06 : 0x04;
- outb(val, sch311x_wdt_data.runtime_reg + RESGEN);
-
sch311x_wdt_miscdev.parent = dev;
err = misc_register(&sch311x_wdt_miscdev);
if (err != 0) {
dev_err(dev, "cannot register miscdev on minor=%d (err=%d)\n",
WATCHDOG_MINOR, err);
- goto exit_release_region3;
+ goto exit_release_region2;
}
dev_info(dev,
@@ -440,12 +414,10 @@ static int __devinit sch311x_wdt_probe(struct platform_device *pdev)
return 0;
-exit_release_region3:
- release_region(sch311x_wdt_data.runtime_reg + WDT_TIME_OUT, 4);
exit_release_region2:
- release_region(sch311x_wdt_data.runtime_reg + GP60, 1);
+ release_region(sch311x_wdt_data.runtime_reg + WDT_TIME_OUT, 4);
exit_release_region:
- release_region(sch311x_wdt_data.runtime_reg + RESGEN, 1);
+ release_region(sch311x_wdt_data.runtime_reg + GP60, 1);
sch311x_wdt_data.runtime_reg = 0;
exit:
return err;
@@ -461,7 +433,6 @@ static int __devexit sch311x_wdt_remove(struct platform_device *pdev)
misc_deregister(&sch311x_wdt_miscdev);
release_region(sch311x_wdt_data.runtime_reg + WDT_TIME_OUT, 4);
release_region(sch311x_wdt_data.runtime_reg + GP60, 1);
- release_region(sch311x_wdt_data.runtime_reg + RESGEN, 1);
sch311x_wdt_data.runtime_reg = 0;
return 0;
}