clk: Remove rfree

Nothing uses this function. Remove it. Since clk_free no longer does
anything, just stub it out.

Signed-off-by: Sean Anderson <seanga2@gmail.com>
Link: https://lore.kernel.org/r/20231216193843.2463779-2-seanga2@gmail.com

arch/sandbox/include/asm/clk.h

@@ -181,14 +181,6 @@ int sandbox_clk_test_disable(struct udevice *dev, int id);
  * @return:	0 if OK, or a negative error code.
  */
 int sandbox_clk_test_disable_bulk(struct udevice *dev);
-/**
- * sandbox_clk_test_free - Ask the sandbox clock test device to free its
- * clocks.
- *
- * @dev:	The sandbox clock test (client) device.
- * @return:	0 if OK, or a negative error code.
- */
-int sandbox_clk_test_free(struct udevice *dev);
 /**
  * sandbox_clk_test_release_bulk - Ask the sandbox clock test device to release
  * all clocks in it's clock bulk struct.

drivers/clk/clk-uclass.c

@@ -461,20 +461,6 @@ int clk_request(struct udevice *dev, struct clk *clk)
 	return ops->request(clk);
 }
 
-void clk_free(struct clk *clk)
-{
-	const struct clk_ops *ops;
-
-	debug("%s(clk=%p)\n", __func__, clk);
-	if (!clk_valid(clk))
-		return;
-	ops = clk_dev_ops(clk->dev);
-
-	if (ops->rfree)
-		ops->rfree(clk);
-	return;
-}
-
 ulong clk_get_rate(struct clk *clk)
 {
 	const struct clk_ops *ops;

drivers/clk/clk_sandbox.c

@@ -101,17 +101,6 @@ static int sandbox_clk_request(struct clk *clk)
 	return 0;
 }
 
-static void sandbox_clk_free(struct clk *clk)
-{
-	struct sandbox_clk_priv *priv = dev_get_priv(clk->dev);
-
-	if (clk->id >= SANDBOX_CLK_ID_COUNT)
-		return;
-
-	priv->requested[clk->id] = false;
-	return;
-}
-
 static struct clk_ops sandbox_clk_ops = {
 	.round_rate	= sandbox_clk_round_rate,
 	.get_rate	= sandbox_clk_get_rate,
@@ -119,7 +108,6 @@ static struct clk_ops sandbox_clk_ops = {
 	.enable		= sandbox_clk_enable,
 	.disable	= sandbox_clk_disable,
 	.request	= sandbox_clk_request,
-	.rfree		= sandbox_clk_free,
 };
 
 static int sandbox_clk_probe(struct udevice *dev)

drivers/clk/clk_sandbox_test.c

@@ -135,18 +135,6 @@ int sandbox_clk_test_disable_bulk(struct udevice *dev)
 	return clk_disable_bulk(&sbct->bulk);
 }
 
-int sandbox_clk_test_free(struct udevice *dev)
-{
-	struct sandbox_clk_test *sbct = dev_get_priv(dev);
-	int i;
-
-	devm_clk_put(dev, sbct->clkps[SANDBOX_CLK_TEST_ID_DEVM1]);
-	for (i = 0; i < SANDBOX_CLK_TEST_NON_DEVM_COUNT; i++)
-		clk_free(&sbct->clks[i]);
-
-	return 0;
-}
-
 int sandbox_clk_test_release_bulk(struct udevice *dev)
 {
 	struct sandbox_clk_test *sbct = dev_get_priv(dev);

include/clk-uclass.h

@@ -18,7 +18,6 @@ struct ofnode_phandle_args;
  * struct clk_ops - The functions that a clock driver must implement.
  * @of_xlate: Translate a client's device-tree (OF) clock specifier.
  * @request: Request a translated clock.
- * @rfree: Free a previously requested clock.
  * @round_rate: Adjust a rate to the exact rate a clock can provide.
  * @get_rate: Get current clock rate.
  * @set_rate: Set current clock rate.
@@ -33,7 +32,6 @@ struct clk_ops {
 	int (*of_xlate)(struct clk *clock,
 			struct ofnode_phandle_args *args);
 	int (*request)(struct clk *clock);
-	void (*rfree)(struct clk *clock);
 	ulong (*round_rate)(struct clk *clk, ulong rate);
 	ulong (*get_rate)(struct clk *clk);
 	ulong (*set_rate)(struct clk *clk, ulong rate);
@@ -81,14 +79,6 @@ int of_xlate(struct clk *clock, struct ofnode_phandle_args *args);
  */
 int request(struct clk *clock);
 
-/**
- * rfree() - Free a previously requested clock.
- * @clock:	The clock to free.
- *
- * Free any resources allocated in request().
- */
-void rfree(struct clk *clock);
-
 /**
  * round_rate() - Adjust a rate to the exact rate a clock can provide.
  * @clk:	The clock to manipulate.

include/clk.h

@@ -424,6 +424,10 @@ static inline int clk_release_bulk(struct clk_bulk *bulk)
 	return clk_release_all(bulk->clks, bulk->count);
 }
 
+static inline void clk_free(struct clk *clk)
+{
+}
+
 #if CONFIG_IS_ENABLED(CLK)
 /**
  * clk_request() - Request a clock by provider-specific ID.
@@ -441,15 +445,6 @@ static inline int clk_release_bulk(struct clk_bulk *bulk)
  */
 int clk_request(struct udevice *dev, struct clk *clk);
 
-/**
- * clk_free() - Free a previously requested clock.
- * @clk:	A clock struct that was previously successfully requested by
- *		clk_request/get_by_*().
- *
- * Free resources allocated by clk_request() (or any clk_get_* function).
- */
-void clk_free(struct clk *clk);
-
 /**
  * clk_get_rate() - Get current clock rate.
  * @clk:	A clock struct that was previously successfully requested by
@@ -594,11 +589,6 @@ static inline int clk_request(struct udevice *dev, struct clk *clk)
 	return -ENOSYS;
 }
 
-static inline void clk_free(struct clk *clk)
-{
-	return;
-}
-
 static inline ulong clk_get_rate(struct clk *clk)
 {
 	return -ENOSYS;

test/dm/clk.c

@@ -182,19 +182,10 @@ static int dm_test_clk(struct unit_test_state *uts)
 						   SANDBOX_CLK_ID_I2C));
 	ut_asserteq(1, sandbox_clk_query_requested(dev_clk,
 						   SANDBOX_CLK_ID_UART2));
-	ut_assertok(sandbox_clk_test_free(dev_test));
-	ut_asserteq(0, sandbox_clk_query_requested(dev_clk,
-						   SANDBOX_CLK_ID_SPI));
-	ut_asserteq(0, sandbox_clk_query_requested(dev_clk,
-						   SANDBOX_CLK_ID_I2C));
-	ut_asserteq(0, sandbox_clk_query_requested(dev_clk,
-						   SANDBOX_CLK_ID_UART2));
 
 	ut_asserteq(1, sandbox_clk_query_requested(dev_clk,
 						   SANDBOX_CLK_ID_UART1));
 	ut_assertok(device_remove(dev_test, DM_REMOVE_NORMAL));
-	ut_asserteq(0, sandbox_clk_query_requested(dev_clk,
-						   SANDBOX_CLK_ID_UART1));
 	return 0;
 }
 DM_TEST(dm_test_clk, UT_TESTF_SCAN_FDT);