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authorRafael J. Wysocki <rjw@sisk.pl>2012-07-05 22:12:32 +0200
committerRafael J. Wysocki <rjw@sisk.pl>2012-07-05 22:12:32 +0200
commit1d5fcfec22ce5f69db0d29284d2b65ff8ab1bfaa (patch)
tree907136239832a60a2f7af6e6dd442fdc3ac0f034 /include/linux/pm_domain.h
parentcbc9ef0287ab764d3da0129efa673808df641fe3 (diff)
downloadop-kernel-dev-1d5fcfec22ce5f69db0d29284d2b65ff8ab1bfaa.zip
op-kernel-dev-1d5fcfec22ce5f69db0d29284d2b65ff8ab1bfaa.tar.gz
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.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/pm_domain.h b/include/linux/pm_domain.h
index 2febe31..a7d6172 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;
};
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