clk: si514: Migrate to clk_hw based OF and registration APIs

Now that we have clk_hw based provider APIs to register clks, we
can get rid of struct clk pointers while registering clks in
these drivers, allowing us to move closer to a clear split of
consumer and provider clk APIs.

Cc: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Cc: Guenter Roeck <linux@roeck-us.net>
Cc: Sören Brinkmann <soren.brinkmann@xilinx.com>
Cc: Mike Looijmans <mike.looijmans@topic.nl>
Signed-off-by: Stephen Boyd <stephen.boyd@linaro.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>

drivers/clk/clk-si514.c

@@ -305,7 +305,6 @@ static int si514_probe(struct i2c_client *client,
 {
 	struct clk_si514 *data;
 	struct clk_init_data init;
-	struct clk *clk;
 	int err;
 
 	data = devm_kzalloc(&client->dev, sizeof(*data), GFP_KERNEL);
@@ -330,13 +329,13 @@ static int si514_probe(struct i2c_client *client,
 
 	i2c_set_clientdata(client, data);
 
-	clk = devm_clk_register(&client->dev, &data->hw);
-	if (IS_ERR(clk)) {
+	err = devm_clk_hw_register(&client->dev, &data->hw);
+	if (err) {
 		dev_err(&client->dev, "clock registration failed\n");
-		return PTR_ERR(clk);
+		return err;
 	}
-	err = of_clk_add_provider(client->dev.of_node, of_clk_src_simple_get,
-			clk);
+	err = of_clk_add_hw_provider(client->dev.of_node, of_clk_hw_simple_get,
+				     &data->hw);
 	if (err) {
 		dev_err(&client->dev, "unable to add clk provider\n");
 		return err;