sunxi: clk-ccu: implement lookup callback

1 files changed, 23 insertions, 0 deletions

diff --git a/drivers/clk/sunxi/clk-sunxi-ccu.c b/drivers/clk/sunxi/clk-sunxi-ccu.c
index 8a26dd49bf..0485404927 100644
--- a/drivers/clk/sunxi/clk-sunxi-ccu.c
+++ b/drivers/clk/sunxi/clk-sunxi-ccu.c
@@ -397,11 +397,34 @@ static int sunxi_clk_ccu_disable(struct clk *clk)
 	return clk_hw_disable(hw);
 }
 
+static int sunxi_clk_ccu_lookup(struct clk *clock, const char *name)
+{
+	struct udevice *dev = clock->dev;
+	const struct sunxi_ccu_desc *desc =
+		(const struct sunxi_ccu_desc *)dev_get_driver_data(dev);
+	int i;
+
+	for (i = 0; i < desc->hw_clks->num ; i++) {
+		struct clk_hw *hw = desc->hw_clks->hws[i];
+
+		if (!hw)
+			continue;
+
+		if (!strcmp(clk_hw_get_name(hw), name)) {
+			clock->id = i;
+			return 0;
+		}
+	}
+
+	return -ENOENT;
+}
+
 static struct clk_ops sunxi_clk_ccu_ops = {
 	.enable = sunxi_clk_ccu_enable,
 	.disable = sunxi_clk_ccu_disable,
 	.set_rate = sunxi_clk_ccu_set_rate,
 	.get_rate = sunxi_clk_ccu_get_rate,
+	.lookup = sunxi_clk_ccu_lookup,
 };
 
 static int sunxi_clk_ccu_probe(struct udevice *dev)