diff --git a/drivers/clk/clk.c b/drivers/clk/clk.c
index 163cb9832f10..d688b8f59a59 100644
--- a/drivers/clk/clk.c
+++ b/drivers/clk/clk.c
@@ -60,6 +60,7 @@ struct clk_core {
 	bool			orphan;
 	unsigned int		enable_count;
 	unsigned int		prepare_count;
+	unsigned int		protect_count;
 	unsigned long		min_rate;
 	unsigned long		max_rate;
 	unsigned long		accuracy;
@@ -84,6 +85,7 @@ struct clk {
 	const char *con_id;
 	unsigned long min_rate;
 	unsigned long max_rate;
+	unsigned long protect_count;
 	struct hlist_node clks_node;
 };
 
@@ -148,6 +150,11 @@ static void clk_enable_unlock(unsigned long flags)
 	spin_unlock_irqrestore(&enable_lock, flags);
 }
 
+static bool clk_core_rate_is_protected(struct clk_core *core)
+{
+	return core->protect_count;
+}
+
 static bool clk_core_is_prepared(struct clk_core *core)
 {
 	/*
@@ -328,6 +335,11 @@ bool clk_hw_is_prepared(const struct clk_hw *hw)
 	return clk_core_is_prepared(hw->core);
 }
 
+bool clk_hw_rate_is_protected(const struct clk_hw *hw)
+{
+	return clk_core_rate_is_protected(hw->core);
+}
+
 bool clk_hw_is_enabled(const struct clk_hw *hw)
 {
 	return clk_core_is_enabled(hw->core);
@@ -466,6 +478,102 @@ EXPORT_SYMBOL_GPL(__clk_mux_determine_rate_closest);
 
 /***        clk api        ***/
 
+static void clk_core_rate_unprotect(struct clk_core *core)
+{
+	lockdep_assert_held(&prepare_lock);
+
+	if (!core)
+		return;
+
+	if (WARN_ON(core->protect_count == 0))
+		return;
+
+	if (--core->protect_count > 0)
+		return;
+
+	clk_core_rate_unprotect(core->parent);
+}
+
+/**
+ * clk_rate_unprotect - unprotect the rate of a clock source
+ * @clk: the clk being unprotected
+ *
+ * clk_unprotect completes a critical section during which the clock
+ * consumer cannot tolerate any change to the clock rate. If no other clock
+ * consumers have protected clocks in the parent chain, then calls to this
+ * function will allow the clocks in the parent chain to change rates
+ * freely.
+ *
+ * Unlike the clk_set_rate_range method, which allows the rate to change
+ * within a given range, protected clocks cannot have their rate changed,
+ * either directly or indirectly due to changes further up the parent chain
+ * of clocks.
+ *
+ * Calls to clk_unprotect must be balanced with calls to clk_protect. Calls
+ * to this function may sleep, and do not return error status.
+ */
+void clk_rate_unprotect(struct clk *clk)
+{
+	if (!clk)
+		return;
+
+	clk_prepare_lock();
+
+	/*
+	 * if there is something wrong with this consumer protect count, stop
+	 * here before messing with the provider
+	 */
+	if (WARN_ON(clk->protect_count <= 0))
+		goto out;
+
+	clk_core_rate_unprotect(clk->core);
+	clk->protect_count--;
+out:
+	clk_prepare_unlock();
+}
+EXPORT_SYMBOL_GPL(clk_rate_unprotect);
+
+static void clk_core_rate_protect(struct clk_core *core)
+{
+	lockdep_assert_held(&prepare_lock);
+
+	if (!core)
+		return;
+
+	if (core->protect_count == 0)
+		clk_core_rate_protect(core->parent);
+
+	core->protect_count++;
+}
+
+/**
+ * clk_rate_protect - protect a clock source
+ * @clk: the clk being protected
+ *
+ * clk_protect begins a critical section during which the clock consumer
+ * cannot tolerate any change to the clock rate. This results in all clocks
+ * up the parent chain to also be rate-protected.
+ *
+ * Unlike the clk_set_rate_range method, which allows the rate to change
+ * within a given range, protected clocks cannot have their rate changed,
+ * either directly or indirectly due to changes further up the parent chain
+ * of clocks.
+ *
+ * Calls to clk_protect should be balanced with calls to clk_unprotect.
+ * Calls to this function may sleep, and do not return error status.
+ */
+void clk_rate_protect(struct clk *clk)
+{
+	if (!clk)
+		return;
+
+	clk_prepare_lock();
+	clk_core_rate_protect(clk->core);
+	clk->protect_count++;
+	clk_prepare_unlock();
+}
+EXPORT_SYMBOL_GPL(clk_rate_protect);
+
 static void clk_core_unprepare(struct clk_core *core)
 {
 	lockdep_assert_held(&prepare_lock);
@@ -838,7 +946,15 @@ static int clk_core_determine_round(struct clk_core *core,
 {
 	long rate;
 
-	if (core->ops->determine_rate) {
+	/*
+	 * At this point, core protection will be disabled if
+	 * - if the provider is not protected at all
+	 * - if the calling consumer is the only one protecting the
+	 *   provider (and only once)
+	 */
+	if (clk_core_rate_is_protected(core)) {
+		req->rate = core->rate;
+	} else if (core->ops->determine_rate) {
 		return core->ops->determine_rate(core->hw, req);
 	} else if (core->ops->round_rate) {
 		rate = core->ops->round_rate(core->hw, req->rate,
@@ -944,10 +1060,17 @@ long clk_round_rate(struct clk *clk, unsigned long rate)
 
 	clk_prepare_lock();
 
+	if (clk->protect_count)
+		clk_core_rate_unprotect(clk->core);
+
 	clk_core_get_boundaries(clk->core, &req.min_rate, &req.max_rate);
 	req.rate = rate;
 
 	ret = clk_core_round_rate_nolock(clk->core, &req);
+
+	if (clk->protect_count)
+		clk_core_rate_protect(clk->core);
+
 	clk_prepare_unlock();
 
 	if (ret)
@@ -1575,15 +1698,24 @@ static unsigned long clk_core_req_round_rate_nolock(struct clk_core *core,
 {
 	int ret;
 	struct clk_rate_request req;
+	unsigned int cnt = core->protect_count;
 
 	if (!core)
 		return 0;
 
+	/* simulate what the rate would be if it could be freely set */
+	while (core->protect_count)
+		clk_core_rate_unprotect(core);
+
 	clk_core_get_boundaries(core, &req.min_rate, &req.max_rate);
 	req.rate = req_rate;
 
 	ret = clk_core_round_rate_nolock(core, &req);
 
+	/* restore the protection */
+	while (core->protect_count < cnt)
+		clk_core_rate_protect(core);
+
 	return ret ? 0 : req.rate;
 }
 
@@ -1602,6 +1734,10 @@ static int clk_core_set_rate_nolock(struct clk_core *core,
 	if (rate == clk_core_get_rate_nolock(core))
 		return 0;
 
+	/* fail on a direct rate set of a protected provider */
+	if (clk_core_rate_is_protected(core))
+		return -EBUSY;
+
 	if ((core->flags & CLK_SET_RATE_GATE) && core->prepare_count)
 		return -EBUSY;
 
@@ -1658,8 +1794,14 @@ int clk_set_rate(struct clk *clk, unsigned long rate)
 	/* prevent racing with updates to the clock topology */
 	clk_prepare_lock();
 
+	if (clk->protect_count)
+		clk_core_rate_unprotect(clk->core);
+
 	ret = clk_core_set_rate_nolock(clk->core, rate);
 
+	if (clk->protect_count)
+		clk_core_rate_protect(clk->core);
+
 	clk_prepare_unlock();
 
 	return ret;
@@ -1690,12 +1832,18 @@ int clk_set_rate_range(struct clk *clk, unsigned long min, unsigned long max)
 
 	clk_prepare_lock();
 
+	if (clk->protect_count)
+		clk_core_rate_unprotect(clk->core);
+
 	if (min != clk->min_rate || max != clk->max_rate) {
 		clk->min_rate = min;
 		clk->max_rate = max;
 		ret = clk_core_set_rate_nolock(clk->core, clk->core->req_rate);
 	}
 
+	if (clk->protect_count)
+		clk_core_rate_protect(clk->core);
+
 	clk_prepare_unlock();
 
 	return ret;
@@ -1837,6 +1985,9 @@ static int clk_core_set_parent_nolock(struct clk_core *core,
 	if ((core->flags & CLK_SET_PARENT_GATE) && core->prepare_count)
 		return -EBUSY;
 
+	if (clk_core_rate_is_protected(core))
+		return -EBUSY;
+
 	/* try finding the new parent index */
 	if (parent) {
 		p_index = clk_fetch_parent_index(core, parent);
@@ -1894,8 +2045,16 @@ int clk_set_parent(struct clk *clk, struct clk *parent)
 		return 0;
 
 	clk_prepare_lock();
+
+	if (clk->protect_count)
+		clk_core_rate_unprotect(clk->core);
+
 	ret = clk_core_set_parent_nolock(clk->core,
 					 parent ? parent->core : NULL);
+
+	if (clk->protect_count)
+		clk_core_rate_protect(clk->core);
+
 	clk_prepare_unlock();
 
 	return ret;
@@ -1909,6 +2068,9 @@ static int clk_core_set_phase_nolock(struct clk_core *core, int degrees)
 	if (!core)
 		return 0;
 
+	if (clk_core_rate_is_protected(core))
+		return -EBUSY;
+
 	trace_clk_set_phase(core, degrees);
 
 	if (core->ops->set_phase)
@@ -1952,7 +2114,15 @@ int clk_set_phase(struct clk *clk, int degrees)
 		degrees += 360;
 
 	clk_prepare_lock();
+
+	if (clk->protect_count)
+		clk_core_rate_unprotect(clk->core);
+
 	ret = clk_core_set_phase_nolock(clk->core, degrees);
+
+	if (clk->protect_count)
+		clk_core_rate_protect(clk->core);
+
 	clk_prepare_unlock();
 
 	return ret;
@@ -2039,11 +2209,12 @@ static void clk_summary_show_one(struct seq_file *s, struct clk_core *c,
 	if (!c)
 		return;
 
-	seq_printf(s, "%*s%-*s %11d %12d %11lu %10lu %-3d\n",
+	seq_printf(s, "%*s%-*s %11d %12d %12d %11lu %10lu %-3d\n",
 		   level * 3 + 1, "",
 		   30 - level * 3, c->name,
-		   c->enable_count, c->prepare_count, clk_core_get_rate(c),
-		   clk_core_get_accuracy(c), clk_core_get_phase(c));
+		   c->enable_count, c->prepare_count, c->protect_count,
+		   clk_core_get_rate(c), clk_core_get_accuracy(c),
+		   clk_core_get_phase(c));
 }
 
 static void clk_summary_show_subtree(struct seq_file *s, struct clk_core *c,
@@ -2065,8 +2236,8 @@ static int clk_summary_show(struct seq_file *s, void *data)
 	struct clk_core *c;
 	struct hlist_head **lists = (struct hlist_head **)s->private;
 
-	seq_puts(s, "   clock                         enable_cnt  prepare_cnt        rate   accuracy   phase\n");
-	seq_puts(s, "----------------------------------------------------------------------------------------\n");
+	seq_puts(s, "   clock                         enable_cnt  prepare_cnt  protect_cnt        rate   accuracy   phase\n");
+	seq_puts(s, "----------------------------------------------------------------------------------------------------\n");
 
 	clk_prepare_lock();
 
@@ -2101,6 +2272,7 @@ static void clk_dump_one(struct seq_file *s, struct clk_core *c, int level)
 	seq_printf(s, "\"%s\": { ", c->name);
 	seq_printf(s, "\"enable_count\": %d,", c->enable_count);
 	seq_printf(s, "\"prepare_count\": %d,", c->prepare_count);
+	seq_printf(s, "\"protect_count\": %d,", c->protect_count);
 	seq_printf(s, "\"rate\": %lu,", clk_core_get_rate(c));
 	seq_printf(s, "\"accuracy\": %lu,", clk_core_get_accuracy(c));
 	seq_printf(s, "\"phase\": %d", clk_core_get_phase(c));
@@ -2231,6 +2403,11 @@ static int clk_debug_create_one(struct clk_core *core, struct dentry *pdentry)
 	if (!d)
 		goto err_out;
 
+	d = debugfs_create_u32("clk_protect_count", S_IRUGO, core->dentry,
+			(u32 *)&core->protect_count);
+	if (!d)
+		goto err_out;
+
 	d = debugfs_create_u32("clk_notifier_count", S_IRUGO, core->dentry,
 			(u32 *)&core->notifier_count);
 	if (!d)
@@ -2794,6 +2971,11 @@ void clk_unregister(struct clk *clk)
 	if (clk->core->prepare_count)
 		pr_warn("%s: unregistering prepared clock: %s\n",
 					__func__, clk->core->name);
+
+	if (clk->core->protect_count)
+		pr_warn("%s: unregistering protected clock: %s\n",
+					__func__, clk->core->name);
+
 	kref_put(&clk->core->ref, __clk_release);
 unlock:
 	clk_prepare_unlock();
@@ -2952,6 +3134,17 @@ void __clk_put(struct clk *clk)
 
 	clk_prepare_lock();
 
+	/*
+	 * Before calling clk_put, all calls to clk_rate_protect from a given
+	 * user must be balanced with calls to clk_rate_unprotect and by that
+	 * same user
+	 */
+	WARN_ON(clk->protect_count);
+
+	/* We voiced our concern, let's sanitize the situation */
+	for (; clk->protect_count; clk->protect_count--)
+		clk_core_rate_unprotect(clk->core);
+
 	hlist_del(&clk->clks_node);
 	if (clk->min_rate > clk->core->req_rate ||
 	    clk->max_rate < clk->core->req_rate)
diff --git a/include/linux/clk-provider.h b/include/linux/clk-provider.h
index a428aec36ace..ebd7df5f375f 100644
--- a/include/linux/clk-provider.h
+++ b/include/linux/clk-provider.h
@@ -739,6 +739,7 @@ unsigned long clk_hw_get_rate(const struct clk_hw *hw);
 unsigned long __clk_get_flags(struct clk *clk);
 unsigned long clk_hw_get_flags(const struct clk_hw *hw);
 bool clk_hw_is_prepared(const struct clk_hw *hw);
+bool clk_hw_rate_is_protected(const struct clk_hw *hw);
 bool clk_hw_is_enabled(const struct clk_hw *hw);
 bool __clk_is_enabled(struct clk *clk);
 struct clk *__clk_lookup(const char *name);
diff --git a/include/linux/clk.h b/include/linux/clk.h
index 91bd464f4c9b..b60c36f2e6b0 100644
--- a/include/linux/clk.h
+++ b/include/linux/clk.h
@@ -331,6 +331,30 @@ struct clk *devm_clk_get(struct device *dev, const char *id);
  */
 struct clk *devm_get_clk_from_child(struct device *dev,
 				    struct device_node *np, const char *con_id);
+/**
+ * clk_rate_protect - inform the system when the clock rate must be protected.
+ * @clk: clock source
+ *
+ * This function informs the system that the consumer protecting the clock
+ * depends on the rate of the clock source and can't tolerate any glitches
+ * introduced by further clock rate change or re-parenting of the clock source.
+ *
+ * Must not be called from within atomic context.
+ */
+void clk_rate_protect(struct clk *clk);
+
+/**
+ * clk_rate_unprotect - release the protection of the clock source.
+ * @clk: clock source
+ *
+ * This function informs the system that the consumer previously protecting the
+ * clock rate can now deal with other consumer altering the clock source rate
+ *
+ * The caller must balance the number of rate_protect and rate_unprotect calls.
+ *
+ * Must not be called from within atomic context.
+ */
+void clk_rate_unprotect(struct clk *clk);
 
 /**
  * clk_enable - inform the system when the clock source should be running.
@@ -583,6 +607,11 @@ static inline void clk_bulk_put(int num_clks, struct clk_bulk_data *clks) {}
 
 static inline void devm_clk_put(struct device *dev, struct clk *clk) {}
 
+
+static inline void clk_protect(struct clk *clk) {}
+
+static inline void clk_unprotect(struct clk *clk) {}
+
 static inline int clk_enable(struct clk *clk)
 {
 	return 0;
