clk: Rename free() to rfree()

This function name conflicts with our desire to #define free() to
something else on sandbox. Since it deals with resources, rename it to
rfree().

Signed-off-by: Simon Glass <sjg@chromium.org>

drivers/clk/clk-ti-sci.c

@@ -203,7 +203,7 @@ static const struct udevice_id ti_sci_clk_of_match[] = {
 static struct clk_ops ti_sci_clk_ops = {
 	.of_xlate = ti_sci_clk_of_xlate,
 	.request = ti_sci_clk_request,
-	.free = ti_sci_clk_free,
+	.rfree = ti_sci_clk_free,
 	.get_rate = ti_sci_clk_get_rate,
 	.set_rate = ti_sci_clk_set_rate,
 	.set_parent = ti_sci_clk_set_parent,

drivers/clk/clk-uclass.c

@@ -423,10 +423,10 @@ int clk_free(struct clk *clk)
 		return 0;
 	ops = clk_dev_ops(clk->dev);
 
-	if (!ops->free)
+	if (!ops->rfree)
 		return 0;
 
-	return ops->free(clk);
+	return ops->rfree(clk);
 }
 
 ulong clk_get_rate(struct clk *clk)

drivers/clk/clk_sandbox.c

@@ -107,7 +107,7 @@ static struct clk_ops sandbox_clk_ops = {
 	.enable		= sandbox_clk_enable,
 	.disable	= sandbox_clk_disable,
 	.request	= sandbox_clk_request,
-	.free		= sandbox_clk_free,
+	.rfree		= sandbox_clk_free,
 };
 
 static int sandbox_clk_probe(struct udevice *dev)

drivers/clk/tegra/tegra-car-clk.c

@@ -80,7 +80,7 @@ static int tegra_car_clk_disable(struct clk *clk)
 
 static struct clk_ops tegra_car_clk_ops = {
 	.request = tegra_car_clk_request,
-	.free = tegra_car_clk_free,
+	.rfree = tegra_car_clk_free,
 	.get_rate = tegra_car_clk_get_rate,
 	.set_rate = tegra_car_clk_set_rate,
 	.enable = tegra_car_clk_enable,

include/clk-uclass.h

@@ -53,14 +53,14 @@ struct clk_ops {
 	 */
 	int (*request)(struct clk *clock);
 	/**
-	 * free - Free a previously requested clock.
+	 * rfree - Free a previously requested clock.
 	 *
 	 * This is the implementation of the client clk_free() API.
 	 *
 	 * @clock:	The clock to free.
 	 * @return 0 if OK, or a negative error code.
 	 */
-	int (*free)(struct clk *clock);
+	int (*rfree)(struct clk *clock);
 	/**
 	 * get_rate() - Get current clock rate.
 	 *