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| author | Rafael J. Wysocki <rjw@sisk.pl> | 2012-07-06 00:12:32 +0400 |
|---|---|---|
| committer | Rafael J. Wysocki <rjw@sisk.pl> | 2012-07-06 00:12:32 +0400 |
| commit | 1d5fcfec22ce5f69db0d29284d2b65ff8ab1bfaa (patch) | |
| tree | 907136239832a60a2f7af6e6dd442fdc3ac0f034 /include/linux/pm_domain.h | |
| parent | cbc9ef0287ab764d3da0129efa673808df641fe3 (diff) | |
| download | linux-1d5fcfec22ce5f69db0d29284d2b65ff8ab1bfaa.tar.xz | |
PM / Domains: Add device domain data reference counter
Add a mechanism for counting references to the
struct generic_pm_domain_data object pointed to by
dev->power.subsys_data->domain_data if the device in question
belongs to a generic PM domain.
This change is necessary for a subsequent patch making it possible to
allocate that object from within pm_genpd_add_callbacks(), so that
drivers can attach their PM domain device callbacks to devices before
those devices are added to PM domains.
This patch has been tested on the SH7372 Mackerel board.
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Diffstat (limited to 'include/linux/pm_domain.h')
| -rw-r--r-- | include/linux/pm_domain.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/pm_domain.h b/include/linux/pm_domain.h index 2febe31d2675..a7d6172922d4 100644 --- a/include/linux/pm_domain.h +++ b/include/linux/pm_domain.h @@ -112,6 +112,7 @@ struct generic_pm_domain_data { struct gpd_timing_data td; struct notifier_block nb; struct mutex lock; + unsigned int refcount; bool need_restore; bool always_on; }; |