watchdog: WatchDog Timer Driver Core - Add WDIOC_SETTIMEOUT and WDIOC_GETTIMEOUT...

[firefly-linux-kernel-4.4.55.git] / include / linux / watchdog.h

diff --git a/include/linux/watchdog.h b/include/linux/watchdog.h
index db46fe89563e90859d38bbb39ef414bc337bb228..9f33efe199d19d98e14da8f62476d1f01830bde4 100644 (file)
--- a/include/linux/watchdog.h
+++ b/include/linux/watchdog.h
@@ -69,6 +69,7 @@ struct watchdog_device;
  * @stop:      The routine for stopping the watchdog device.
  * @ping:      The routine that sends a keepalive ping to the watchdog device.
  * @status:    The routine that shows the status of the watchdog device.
+ * @set_timeout:The routine for setting the watchdog devices timeout value.
  *
  * The watchdog_ops structure contains a list of low-level operations
  * that control a watchdog device. It also contains the module that owns
@@ -83,6 +84,7 @@ struct watchdog_ops {
        /* optional operations */
        int (*ping)(struct watchdog_device *);
        unsigned int (*status)(struct watchdog_device *);
+       int (*set_timeout)(struct watchdog_device *, unsigned int);
 };
 
 /** struct watchdog_device - The structure that defines a watchdog device
@@ -90,6 +92,7 @@ struct watchdog_ops {
  * @info:      Pointer to a watchdog_info structure.
  * @ops:       Pointer to the list of watchdog operations.
  * @bootstatus:        Status of the watchdog device at boot.
+ * @timeout:   The watchdog devices timeout value.
  * @driver-data:Pointer to the drivers private data.
  * @status:    Field that contains the devices internal status bits.
  *
@@ -103,6 +106,7 @@ struct watchdog_device {
        const struct watchdog_info *info;
        const struct watchdog_ops *ops;
        unsigned int bootstatus;
+       unsigned int timeout;
        void *driver_data;
        unsigned long status;
 /* Bit numbers for status flags */