2 files changed, 4 insertions, 8 deletions

diff --git a/include/linux/serial_core.h b/include/linux/serial_core.h
index d97142159e0f..87d4bbc773fc 100644
--- a/include/linux/serial_core.h
+++ b/include/linux/serial_core.h
@@ -29,7 +29,6 @@
 #include <linux/tty.h>
 #include <linux/mutex.h>
 #include <linux/sysrq.h>
-#include <linux/pps_kernel.h>
 #include <uapi/linux/serial_core.h>
 
 struct uart_port;
diff --git a/include/linux/tty_ldisc.h b/include/linux/tty_ldisc.h
index fb79dd8d1537..455a0d7bf220 100644
--- a/include/linux/tty_ldisc.h
+++ b/include/linux/tty_ldisc.h
@@ -100,16 +100,14 @@
  *      seek to perform this action quickly but should wait until
  *      any pending driver I/O is completed.
  *
- * void (*dcd_change)(struct tty_struct *tty, unsigned int status,
- *                      struct pps_event_time *ts)
+ * void (*dcd_change)(struct tty_struct *tty, unsigned int status)
  *
- *      Tells the discipline that the DCD pin has changed its status and
- *      the relative timestamp. Pointer ts cannot be NULL.
+ *      Tells the discipline that the DCD pin has changed its status.
+ *      Used exclusively by the N_PPS (Pulse-Per-Second) line discipline.
  */
 
 #include <linux/fs.h>
 #include <linux/wait.h>
-#include <linux/pps_kernel.h>
 #include <linux/wait.h>
 
 struct tty_ldisc_ops {
@@ -144,8 +142,7 @@ struct tty_ldisc_ops {
         void    (*receive_buf)(struct tty_struct *, const unsigned char *cp,
                                char *fp, int count);
         void    (*write_wakeup)(struct tty_struct *);
-        void    (*dcd_change)(struct tty_struct *, unsigned int,
-                                struct pps_event_time *);
+        void    (*dcd_change)(struct tty_struct *, unsigned int);
 
         struct  module *owner;