1 files changed, 18 insertions, 0 deletions

diff --git a/drivers/clocksource/timer-atmel-tcb.c b/drivers/clocksource/timer-atmel-tcb.c
index 6ed31f9def7e..7427b07495a8 100644
--- a/drivers/clocksource/timer-atmel-tcb.c
+++ b/drivers/clocksource/timer-atmel-tcb.c
@@ -6,6 +6,7 @@
 #include <linux/irq.h>
 
 #include <linux/clk.h>
+#include <linux/delay.h>
 #include <linux/err.h>
 #include <linux/ioport.h>
 #include <linux/io.h>
@@ -125,6 +126,18 @@ static u64 notrace tc_sched_clock_read32(void)
         return tc_get_cycles32(&clksrc);
 }
 
+static struct delay_timer tc_delay_timer;
+
+static unsigned long tc_delay_timer_read(void)
+{
+        return tc_get_cycles(&clksrc);
+}
+
+static unsigned long notrace tc_delay_timer_read32(void)
+{
+        return tc_get_cycles32(&clksrc);
+}
+
 #ifdef CONFIG_GENERIC_CLOCKEVENTS
 
 struct tc_clkevt_device {
@@ -432,6 +445,7 @@ static int __init tcb_clksrc_init(struct device_node *node)
                 /* setup ony channel 0 */
                 tcb_setup_single_chan(&tc, best_divisor_idx);
                 tc_sched_clock = tc_sched_clock_read32;
+                tc_delay_timer.read_current_timer = tc_delay_timer_read32;
         } else {
                 /* we have three clocks no matter what the
                  * underlying platform supports.
@@ -444,6 +458,7 @@ static int __init tcb_clksrc_init(struct device_node *node)
                 /* setup both channel 0 & 1 */
                 tcb_setup_dual_chan(&tc, best_divisor_idx);
                 tc_sched_clock = tc_sched_clock_read;
+                tc_delay_timer.read_current_timer = tc_delay_timer_read;
         }
 
         /* and away we go! */
@@ -458,6 +473,9 @@ static int __init tcb_clksrc_init(struct device_node *node)
 
         sched_clock_register(tc_sched_clock, 32, divided_rate);
 
+        tc_delay_timer.freq = divided_rate;
+        register_current_timer_delay(&tc_delay_timer);
+
         return 0;
 
 err_unregister_clksrc: