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powercap/dtpm: Destroy hierarchy function

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The hierarchy creation function exits but without a destroy hierarchy
function. Due to that, the modules creating the hierarchy can not be
unloaded properly because they don't have an exit callback.

Provide the dtpm_destroy_hierarchy() function to remove the previously
created hierarchy.

The function relies on all the release mechanisms implemented by the
underlying powercap framework.

Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>
Link: https://lore.kernel.org/r/20220130210210.549877-4-daniel.lezcano@linaro.org
This commit is contained in:
Daniel Lezcano 2022-01-30 22:02:06 +01:00
parent 690de0b401
commit c404c64d64
2 changed files with 46 additions and 0 deletions
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3
include/linux/dtpm.h
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@ -37,6 +37,7 @@ struct device_node;
struct dtpm_subsys_ops {
const char *name;
int (*init)(void);
void (*exit)(void);
int (*setup)(struct dtpm *, struct device_node *);
};
@ -67,4 +68,6 @@ void dtpm_unregister(struct dtpm *dtpm);
int dtpm_register(const char *name, struct dtpm *dtpm, struct dtpm *parent);
int dtpm_create_hierarchy(struct of_device_id *dtpm_match_table);
void dtpm_destroy_hierarchy(void);
#endif