1 files changed, 38 insertions, 1 deletions

diff --git a/arch/arm/mach-davinci/clock.c b/arch/arm/mach-davinci/clock.c
index 34668ead53c..d458558ee84 100644
--- a/arch/arm/mach-davinci/clock.c
+++ b/arch/arm/mach-davinci/clock.c
@@ -52,6 +52,40 @@ static void __clk_disable(struct clk *clk)
 		__clk_disable(clk->parent);
 }
 
+int davinci_clk_reset(struct clk *clk, bool reset)
+{
+	unsigned long flags;
+
+	if (clk == NULL || IS_ERR(clk))
+		return -EINVAL;
+
+	spin_lock_irqsave(&clockfw_lock, flags);
+	if (clk->flags & CLK_PSC)
+		davinci_psc_reset(clk->gpsc, clk->lpsc, reset);
+	spin_unlock_irqrestore(&clockfw_lock, flags);
+
+	return 0;
+}
+EXPORT_SYMBOL(davinci_clk_reset);
+
+int davinci_clk_reset_assert(struct clk *clk)
+{
+	if (clk == NULL || IS_ERR(clk) || !clk->reset)
+		return -EINVAL;
+
+	return clk->reset(clk, true);
+}
+EXPORT_SYMBOL(davinci_clk_reset_assert);
+
+int davinci_clk_reset_deassert(struct clk *clk)
+{
+	if (clk == NULL || IS_ERR(clk) || !clk->reset)
+		return -EINVAL;
+
+	return clk->reset(clk, false);
+}
+EXPORT_SYMBOL(davinci_clk_reset_deassert);
+
 int clk_enable(struct clk *clk)
 {
 	unsigned long flags;
@@ -535,7 +569,7 @@ int davinci_set_refclk_rate(unsigned long rate)
 }
 
 int __init davinci_clk_init(struct clk_lookup *clocks)
-  {
+{
 	struct clk_lookup *c;
 	struct clk *clk;
 	size_t num_clocks = 0;
@@ -576,6 +610,9 @@ int __init davinci_clk_init(struct clk_lookup *clocks)
 		if (clk->lpsc)
 			clk->flags |= CLK_PSC;
 
+		if (clk->flags & PSC_LRST)
+			clk->reset = davinci_clk_reset;
+
 		clk_register(clk);
 		num_clocks++;