Clk API¶
The KUnit clk API is used to test clk providers and clk consumers.
- 
int clk_prepare_enable_kunit(struct kunit *test, struct clk *clk)¶
- Test managed clk_prepare_enable() 
Parameters
- struct kunit *test
- The test context 
- struct clk *clk
- clk to prepare and enable 
Return
0 on success, or negative errno on failure.
- 
struct clk *clk_get_kunit(struct kunit *test, struct device *dev, const char *con_id)¶
- Test managed - clk_get()
Parameters
- struct kunit *test
- The test context 
- struct device *dev
- device for clock “consumer” 
- const char *con_id
- clock consumer ID 
Description
Just like clk_get(), except the clk is managed by the test case and is
automatically put with clk_put() after the test case concludes.
Return
new clk consumer or ERR_PTR on failure.
- 
struct clk *of_clk_get_kunit(struct kunit *test, struct device_node *np, int index)¶
- Test managed of_clk_get() 
Parameters
- struct kunit *test
- The test context 
- struct device_node *np
- device_node for clock “consumer” 
- int index
- index in ‘clocks’ property of np 
Description
Just like of_clk_get(), except the clk is managed by the test case and is
automatically put with clk_put() after the test case concludes.
Return
new clk consumer or ERR_PTR on failure.
- 
struct clk *clk_hw_get_clk_kunit(struct kunit *test, struct clk_hw *hw, const char *con_id)¶
- Test managed clk_hw_get_clk() 
Parameters
- struct kunit *test
- The test context 
- struct clk_hw *hw
- clk_hw associated with the clk being consumed 
- const char *con_id
- connection ID string on device 
Description
Just like clk_hw_get_clk(), except the clk is managed by the test case and
is automatically put with clk_put() after the test case concludes.
Return
new clk consumer or ERR_PTR on failure.
- 
struct clk *clk_hw_get_clk_prepared_enabled_kunit(struct kunit *test, struct clk_hw *hw, const char *con_id)¶
- Test managed clk_hw_get_clk() + clk_prepare_enable() 
Parameters
- struct kunit *test
- The test context 
- struct clk_hw *hw
- clk_hw associated with the clk being consumed 
- const char *con_id
- connection ID string on device 
Description
Just like
struct clk *clk = clk_hw_get_clk(...);
clk_prepare_enable(clk);
except the clk is managed by the test case and is automatically disabled and
unprepared with clk_disable_unprepare() and put with clk_put() after the
test case concludes.
Return
new clk consumer that is prepared and enabled or ERR_PTR on failure.
- 
int clk_hw_register_kunit(struct kunit *test, struct device *dev, struct clk_hw *hw)¶
- Test managed clk_hw_register() 
Parameters
- struct kunit *test
- The test context 
- struct device *dev
- device that is registering this clock 
- struct clk_hw *hw
- link to hardware-specific clock data 
Description
Just like clk_hw_register(), except the clk registration is managed by the test case and is automatically unregistered after the test case concludes.
Return
0 on success or a negative errno value on failure.
- 
int of_clk_hw_register_kunit(struct kunit *test, struct device_node *node, struct clk_hw *hw)¶
- Test managed of_clk_hw_register() 
Parameters
- struct kunit *test
- The test context 
- struct device_node *node
- device_node of device that is registering this clock 
- struct clk_hw *hw
- link to hardware-specific clock data 
Description
Just like of_clk_hw_register(), except the clk registration is managed by the test case and is automatically unregistered after the test case concludes.
Return
0 on success or a negative errno value on failure.