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PM / Domains: Split device PM domain data into base and need_restore

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The struct pm_domain_data data type is defined in such a way that
adding new fields specific to the generic PM domains code will
require include/linux/pm.h to be modified.  As a result, data types
used only by the generic PM domains code will be defined in two
headers, although they all should be defined in pm_domain.h and
pm.h will need to include more headers, which won't be very nice.

For this reason change the definition of struct pm_subsys_data
so that its domain_data member is a pointer, which will allow
struct pm_domain_data to be subclassed by various PM domains
implementations.  Remove the need_restore member from
struct pm_domain_data and make the generic PM domains code
subclass it by adding the need_restore member to the new data type.

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
This commit is contained in:
Rafael J. Wysocki
2011-09-26 20:22:02 +02:00
parent 0d41da2e31
commit cd0ea672f5
3 changed files with 30 additions and 11 deletions
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3
include/linux/pm.h
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@@ -424,7 +424,6 @@ struct wakeup_source;
struct pm_domain_data {
struct list_head list_node;
struct device *dev;
bool need_restore;
};
struct pm_subsys_data {
@@ -434,7 +433,7 @@ struct pm_subsys_data {
struct list_head clock_list;
#endif
#ifdef CONFIG_PM_GENERIC_DOMAINS
struct pm_domain_data domain_data;
struct pm_domain_data *domain_data;
#endif
};