diff --git a/drivers/ptp/ptp_chardev.c b/drivers/ptp/ptp_chardev.c
index abe94bb80cf6..dbbe551a044f 100644
--- a/drivers/ptp/ptp_chardev.c
+++ b/drivers/ptp/ptp_chardev.c
@@ -110,6 +110,10 @@ int ptp_open(struct posix_clock_context *pccontext, fmode_t fmode)
 	queue = kzalloc(sizeof(*queue), GFP_KERNEL);
 	if (!queue)
 		return -EINVAL;
+	queue->mask = bitmap_alloc(PTP_MAX_CHANNELS, GFP_KERNEL);
+	if (!queue->mask)
+		return -EINVAL;
+	bitmap_set(queue->mask, 0, PTP_MAX_CHANNELS);
 	spin_lock_init(&queue->lock);
 	list_add_tail(&queue->qlist, &ptp->tsevqs);
 	pccontext->private_clkdata = queue;
@@ -126,6 +130,7 @@ int ptp_release(struct posix_clock_context *pccontext)
 		spin_lock_irqsave(&queue->lock, flags);
 		list_del(&queue->qlist);
 		spin_unlock_irqrestore(&queue->lock, flags);
+		bitmap_free(queue->mask);
 		kfree(queue);
 	}
 	return 0;
@@ -141,6 +146,7 @@ long ptp_ioctl(struct posix_clock_context *pccontext, unsigned int cmd,
 	struct system_device_crosststamp xtstamp;
 	struct ptp_clock_info *ops = ptp->info;
 	struct ptp_sys_offset *sysoff = NULL;
+	struct timestamp_event_queue *tsevq;
 	struct ptp_system_timestamp sts;
 	struct ptp_clock_request req;
 	struct ptp_clock_caps caps;
@@ -150,6 +156,8 @@ long ptp_ioctl(struct posix_clock_context *pccontext, unsigned int cmd,
 	struct timespec64 ts;
 	int enable, err = 0;
 
+	tsevq = pccontext->private_clkdata;
+
 	switch (cmd) {
 
 	case PTP_CLOCK_GETCAPS:
@@ -448,6 +456,22 @@ long ptp_ioctl(struct posix_clock_context *pccontext, unsigned int cmd,
 		mutex_unlock(&ptp->pincfg_mux);
 		break;
 
+	case PTP_MASK_CLEAR_ALL:
+		bitmap_clear(tsevq->mask, 0, PTP_MAX_CHANNELS);
+		break;
+
+	case PTP_MASK_EN_SINGLE:
+		if (copy_from_user(&i, (void __user *)arg, sizeof(i))) {
+			err = -EFAULT;
+			break;
+		}
+		if (i >= PTP_MAX_CHANNELS) {
+			err = -EFAULT;
+			break;
+		}
+		set_bit(i, tsevq->mask);
+		break;
+
 	default:
 		err = -ENOTTY;
 		break;
diff --git a/drivers/ptp/ptp_clock.c b/drivers/ptp/ptp_clock.c
index 74f1ce2dbccb..ed16d9787ce9 100644
--- a/drivers/ptp/ptp_clock.c
+++ b/drivers/ptp/ptp_clock.c
@@ -183,6 +183,7 @@ static void ptp_clock_release(struct device *dev)
 	spin_lock_irqsave(&tsevq->lock, flags);
 	list_del(&tsevq->qlist);
 	spin_unlock_irqrestore(&tsevq->lock, flags);
+	bitmap_free(tsevq->mask);
 	kfree(tsevq);
 	ida_free(&ptp_clocks_map, ptp->index);
 	kfree(ptp);
@@ -243,6 +244,10 @@ struct ptp_clock *ptp_clock_register(struct ptp_clock_info *info,
 	if (!queue)
 		goto no_memory_queue;
 	list_add_tail(&queue->qlist, &ptp->tsevqs);
+	queue->mask = bitmap_alloc(PTP_MAX_CHANNELS, GFP_KERNEL);
+	if (!queue->mask)
+		goto no_memory_bitmap;
+	bitmap_set(queue->mask, 0, PTP_MAX_CHANNELS);
 	spin_lock_init(&queue->lock);
 	mutex_init(&ptp->pincfg_mux);
 	mutex_init(&ptp->n_vclocks_mux);
@@ -346,6 +351,8 @@ struct ptp_clock *ptp_clock_register(struct ptp_clock_info *info,
 kworker_err:
 	mutex_destroy(&ptp->pincfg_mux);
 	mutex_destroy(&ptp->n_vclocks_mux);
+	bitmap_free(queue->mask);
+no_memory_bitmap:
 	list_del(&queue->qlist);
 	kfree(queue);
 no_memory_queue:
@@ -400,9 +407,10 @@ void ptp_clock_event(struct ptp_clock *ptp, struct ptp_clock_event *event)
 		break;
 
 	case PTP_CLOCK_EXTTS:
-		/* Enqueue timestamp on all queues */
+		/* Enqueue timestamp on selected queues */
 		list_for_each_entry(tsevq, &ptp->tsevqs, qlist) {
-			enqueue_external_timestamp(tsevq, event);
+			if (test_bit((unsigned int)event->index, tsevq->mask))
+				enqueue_external_timestamp(tsevq, event);
 		}
 		wake_up_interruptible(&ptp->tsev_wq);
 		break;
diff --git a/drivers/ptp/ptp_private.h b/drivers/ptp/ptp_private.h
index 9d5f3d95058e..ad4ce1b25c86 100644
--- a/drivers/ptp/ptp_private.h
+++ b/drivers/ptp/ptp_private.h
@@ -16,10 +16,12 @@
 #include <linux/ptp_clock_kernel.h>
 #include <linux/time.h>
 #include <linux/list.h>
+#include <linux/bitmap.h>
 
 #define PTP_MAX_TIMESTAMPS 128
 #define PTP_BUF_TIMESTAMPS 30
 #define PTP_DEFAULT_MAX_VCLOCKS 20
+#define PTP_MAX_CHANNELS 2048
 
 struct timestamp_event_queue {
 	struct ptp_extts_event buf[PTP_MAX_TIMESTAMPS];
@@ -27,6 +29,7 @@ struct timestamp_event_queue {
 	int tail;
 	spinlock_t lock;
 	struct list_head qlist;
+	unsigned long *mask;
 };
 
 struct ptp_clock {
diff --git a/include/uapi/linux/ptp_clock.h b/include/uapi/linux/ptp_clock.h
index 05cc35fc94ac..da700999cad4 100644
--- a/include/uapi/linux/ptp_clock.h
+++ b/include/uapi/linux/ptp_clock.h
@@ -224,6 +224,8 @@ struct ptp_pin_desc {
 	_IOWR(PTP_CLK_MAGIC, 17, struct ptp_sys_offset_precise)
 #define PTP_SYS_OFFSET_EXTENDED2 \
 	_IOWR(PTP_CLK_MAGIC, 18, struct ptp_sys_offset_extended)
+#define PTP_MASK_CLEAR_ALL  _IO(PTP_CLK_MAGIC, 19)
+#define PTP_MASK_EN_SINGLE  _IOW(PTP_CLK_MAGIC, 20, unsigned int)
 
 struct ptp_extts_event {
 	struct ptp_clock_time t; /* Time event occured. */
