1 files changed, 18 insertions, 0 deletions
diff --git a/arch/arm/mach-tegra/clock.c b/arch/arm/mach-tegra/clock.c
index c9653d1e09b5..1c0d774e447f 100644
--- a/arch/arm/mach-tegra/clock.c
+++ b/arch/arm/mach-tegra/clock.c
@@ -602,6 +602,24 @@ void tegra_periph_reset_assert(struct clk *c)
 }
 EXPORT_SYMBOL(tegra_periph_reset_assert);
 
+/* dvfs initialization may lower default maximum rate */
+void __init tegra_init_max_rate(struct clk *c, unsigned long max_rate)
+{
+	struct clk *shared_bus_user;
+
+	if (c->max_rate <= max_rate)
+		return;
+
+	pr_warning("Lowering %s maximum rate from %lu to %lu\n",
+		c->name, c->max_rate, max_rate);
+
+	c->max_rate = max_rate;
+	list_for_each_entry(shared_bus_user,
+			    &c->shared_bus_list, u.shared_bus_user.node) {
+		shared_bus_user->max_rate = max_rate;
+	}
+}
+
 void __init tegra_init_clock(void)
 {
 	tegra_soc_init_clocks();