mirror of
git://projects.qi-hardware.com/openwrt-xburst.git
synced 2024-12-18 19:50:37 +02:00
105 lines
2.8 KiB
Diff
105 lines
2.8 KiB
Diff
|
diff --git a/drivers/char/watchdog/mtx-1_wdt.c b/drivers/char/watchdog/mtx-1_wdt.c
|
||
|
|
index dcfd401..5d8c51f 100644
|
||
|
|
--- a/drivers/char/watchdog/mtx-1_wdt.c
|
||
|
|
+++ b/drivers/char/watchdog/mtx-1_wdt.c
|
||
|
|
@@ -45,10 +45,13 @@
|
||
|
|
#include <linux/completion.h>
|
||
|
|
#include <linux/jiffies.h>
|
||
|
|
#include <linux/watchdog.h>
|
||
|
|
+#include <linux/platform_device.h>
|
||
|
|
+
|
||
|
|
#include <asm/io.h>
|
||
|
|
#include <asm/uaccess.h>
|
||
|
|
|
||
|
|
#include <asm/mach-au1x00/au1000.h>
|
||
|
|
+#include <asm/gpio.h>
|
||
|
|
|
||
|
|
#define MTX1_WDT_INTERVAL (5 * HZ)
|
||
|
|
|
||
|
|
@@ -61,6 +64,7 @@ static struct {
|
||
|
|
volatile int queue;
|
||
|
|
int default_ticks;
|
||
|
|
unsigned long inuse;
|
||
|
|
+ unsigned gpio;
|
||
|
|
} mtx1_wdt_device;
|
||
|
|
|
||
|
|
static void mtx1_wdt_trigger(unsigned long unused)
|
||
|
|
@@ -73,7 +77,7 @@ static void mtx1_wdt_trigger(unsigned long unused)
|
||
|
|
* toggle GPIO2_15
|
||
|
|
*/
|
||
|
|
tmp = au_readl(GPIO2_DIR);
|
||
|
|
- tmp = (tmp & ~(1<<15)) | ((~tmp) & (1<<15));
|
||
|
|
+ tmp = (tmp & ~(1<< mtx1_wdt_device.gpio)) | ((~tmp) & (1<< mtx1_wdt_device.gpio));
|
||
|
|
au_writel (tmp, GPIO2_DIR);
|
||
|
|
|
||
|
|
if (mtx1_wdt_device.queue && ticks)
|
||
|
|
@@ -93,7 +97,7 @@ static void mtx1_wdt_start(void)
|
||
|
|
{
|
||
|
|
if (!mtx1_wdt_device.queue) {
|
||
|
|
mtx1_wdt_device.queue = 1;
|
||
|
|
- au_writel (au_readl(GPIO2_DIR) | (u32)(1<<15), GPIO2_DIR);
|
||
|
|
+ gpio_set_value(mtx1_wdt_device.gpio, 1);
|
||
|
|
mod_timer(&mtx1_wdt_device.timer, jiffies + MTX1_WDT_INTERVAL);
|
||
|
|
}
|
||
|
|
mtx1_wdt_device.running++;
|
||
|
|
@@ -103,7 +107,7 @@ static int mtx1_wdt_stop(void)
|
||
|
|
{
|
||
|
|
if (mtx1_wdt_device.queue) {
|
||
|
|
mtx1_wdt_device.queue = 0;
|
||
|
|
- au_writel (au_readl(GPIO2_DIR) & ~((u32)(1<<15)), GPIO2_DIR);
|
||
|
|
+ gpio_set_value(mtx1_wdt_device.gpio, 0);
|
||
|
|
}
|
||
|
|
|
||
|
|
ticks = mtx1_wdt_device.default_ticks;
|
||
|
|
@@ -197,10 +201,12 @@ static struct miscdevice mtx1_wdt_misc = {
|
||
|
|
};
|
||
|
|
|
||
|
|
|
||
|
|
-static int __init mtx1_wdt_init(void)
|
||
|
|
+static int mtx1_wdt_probe(struct platform_device *pdev)
|
||
|
|
{
|
||
|
|
int ret;
|
||
|
|
|
||
|
|
+ mtx1_wdt_device.gpio = pdev->resource[0].start;
|
||
|
|
+
|
||
|
|
if ((ret = misc_register(&mtx1_wdt_misc)) < 0) {
|
||
|
|
printk(KERN_ERR " mtx-1_wdt : failed to register\n");
|
||
|
|
return ret;
|
||
|
|
@@ -222,13 +228,30 @@ static int __init mtx1_wdt_init(void)
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
-static void __exit mtx1_wdt_exit(void)
|
||
|
|
+static int mtx1_wdt_remove(struct platform_device *pdev)
|
||
|
|
{
|
||
|
|
if (mtx1_wdt_device.queue) {
|
||
|
|
mtx1_wdt_device.queue = 0;
|
||
|
|
wait_for_completion(&mtx1_wdt_device.stop);
|
||
|
|
}
|
||
|
|
misc_deregister(&mtx1_wdt_misc);
|
||
|
|
+ return 0;
|
||
|
|
+}
|
||
|
|
+
|
||
|
|
+static struct platform_driver mtx1_wdt = {
|
||
|
|
+ .probe = mtx1_wdt_probe,
|
||
|
|
+ .remove = mtx1_wdt_remove,
|
||
|
|
+ .driver.name = "mtx1-wdt",
|
||
|
|
+};
|
||
|
|
+
|
||
|
|
+static int __init mtx1_wdt_init(void)
|
||
|
|
+{
|
||
|
|
+ return platform_driver_register(&mtx1_wdt);
|
||
|
|
+}
|
||
|
|
+
|
||
|
|
+static void __exit mtx1_wdt_exit(void)
|
||
|
|
+{
|
||
|
|
+ platform_driver_unregister(&mtx1_wdt);
|
||
|
|
}
|
||
|
|
|
||
|
|
module_init(mtx1_wdt_init);
|
||
|
|
@@ -237,3 +260,4 @@ module_exit(mtx1_wdt_exit);
|
||
|
|
MODULE_AUTHOR("Michael Stickel, Florian Fainelli");
|
||
|
|
MODULE_DESCRIPTION("Driver for the MTX-1 watchdog");
|
||
|
|
MODULE_LICENSE("GPL");
|
||
|
|
+MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
|