1 files changed, 4 insertions, 1 deletions

diff --git a/drivers/net/phy/dp83640.c b/drivers/net/phy/dp83640.c
index 3f882eea6e1d..e347c8a218fc 100644
--- a/drivers/net/phy/dp83640.c
+++ b/drivers/net/phy/dp83640.c
@@ -437,7 +437,10 @@ static int ptp_dp83640_enable(struct ptp_clock_info *ptp,
                 if (on) {
                         gpio_num = gpio_tab[EXTTS0_GPIO + index];
                         evnt |= (gpio_num & EVNT_GPIO_MASK) << EVNT_GPIO_SHIFT;
-                        evnt |= EVNT_RISE;
+                        if (rq->extts.flags & PTP_FALLING_EDGE)
+                                evnt |= EVNT_FALL;
+                        else
+                                evnt |= EVNT_RISE;
                 }
                 ext_write(0, phydev, PAGE5, PTP_EVNT, evnt);
                 return 0;