1 // SPDX-License-Identifier: GPL-2.0
3  * KUnit helpers for clk providers and consumers
5 #include <linux/clk.h>
6 #include <linux/clk-provider.h>
11 #include <kunit/clk.h>
15 			    clk_disable_unprepare, struct clk *);
17  * clk_prepare_enable_kunit() - Test managed clk_prepare_enable()
19  * @clk: clk to prepare and enable
23 int clk_prepare_enable_kunit(struct kunit *test, struct clk *clk)  in clk_prepare_enable_kunit()  argument
27 	ret = clk_prepare_enable(clk);  in clk_prepare_enable_kunit()
32 					 clk);  in clk_prepare_enable_kunit()
36 KUNIT_DEFINE_ACTION_WRAPPER(clk_put_wrapper, clk_put, struct clk *);
38 static struct clk *__clk_get_kunit(struct kunit *test, struct clk *clk)  in __clk_get_kunit()  argument
42 	if (IS_ERR(clk))  in __clk_get_kunit()
43 		return clk;  in __clk_get_kunit()
45 	ret = kunit_add_action_or_reset(test, clk_put_wrapper, clk);  in __clk_get_kunit()
49 	return clk;  in __clk_get_kunit()
53  * clk_get_kunit() - Test managed clk_get()
58  * Just like clk_get(), except the clk is managed by the test case and is
61  * Return: new clk consumer or ERR_PTR on failure.
63 struct clk *
66 	struct clk *clk;  in clk_get_kunit()  local
68 	clk = clk_get(dev, con_id);  in clk_get_kunit()
70 	return __clk_get_kunit(test, clk);  in clk_get_kunit()
75  * of_clk_get_kunit() - Test managed of_clk_get()
80  * Just like of_clk_get(), except the clk is managed by the test case and is
83  * Return: new clk consumer or ERR_PTR on failure.
85 struct clk *
88 	struct clk *clk;  in of_clk_get_kunit()  local
90 	clk = of_clk_get(np, index);  in of_clk_get_kunit()
92 	return __clk_get_kunit(test, clk);  in of_clk_get_kunit()
97  * clk_hw_get_clk_kunit() - Test managed clk_hw_get_clk()
99  * @hw: clk_hw associated with the clk being consumed
102  * Just like clk_hw_get_clk(), except the clk is managed by the test case and
105  * Return: new clk consumer or ERR_PTR on failure.
107 struct clk *
110 	struct clk *clk;  in clk_hw_get_clk_kunit()  local
112 	clk = clk_hw_get_clk(hw, con_id);  in clk_hw_get_clk_kunit()
114 	return __clk_get_kunit(test, clk);  in clk_hw_get_clk_kunit()
119  * clk_hw_get_clk_prepared_enabled_kunit() - Test managed clk_hw_get_clk() + clk_prepare_enable()
121  * @hw: clk_hw associated with the clk being consumed
126  * .. code-block:: c
128  *	struct clk *clk = clk_hw_get_clk(...);
129  *	clk_prepare_enable(clk);
131  * except the clk is managed by the test case and is automatically disabled and
135  * Return: new clk consumer that is prepared and enabled or ERR_PTR on failure.
137 struct clk *
142 	struct clk *clk;  in clk_hw_get_clk_prepared_enabled_kunit()  local
144 	clk = clk_hw_get_clk_kunit(test, hw, con_id);  in clk_hw_get_clk_prepared_enabled_kunit()
145 	if (IS_ERR(clk))  in clk_hw_get_clk_prepared_enabled_kunit()
146 		return clk;  in clk_hw_get_clk_prepared_enabled_kunit()
148 	ret = clk_prepare_enable_kunit(test, clk);  in clk_hw_get_clk_prepared_enabled_kunit()
152 	return clk;  in clk_hw_get_clk_prepared_enabled_kunit()
160  * clk_hw_register_kunit() - Test managed clk_hw_register()
163  * @hw: link to hardware-specific clock data
165  * Just like clk_hw_register(), except the clk registration is managed by the
183  * of_clk_hw_register_kunit() - Test managed of_clk_hw_register()
186  * @hw: link to hardware-specific clock data
188  * Just like of_clk_hw_register(), except the clk registration is managed by
207 MODULE_DESCRIPTION("KUnit helpers for clk providers and consumers");