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authorjuhosg <juhosg@3c298f89-4303-0410-b956-a3cf2f4a3e73>2009-05-22 06:46:42 +0000
committerjuhosg <juhosg@3c298f89-4303-0410-b956-a3cf2f4a3e73>2009-05-22 06:46:42 +0000
commita46694e6d07efe76d811136311befee41954d4ff (patch)
tree1fecf70223aade7526180b07ae08de2c2c65342a /target/linux/adm5120/files/drivers/usb/host/adm5120-pm.c
parent99e307f852a3671db6778bfb16b8166ec22bdc95 (diff)
[adm5120] integrate 2.6.28 specific patch into the usb driver
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@15975 3c298f89-4303-0410-b956-a3cf2f4a3e73
Diffstat (limited to 'target/linux/adm5120/files/drivers/usb/host/adm5120-pm.c')
-rw-r--r--target/linux/adm5120/files/drivers/usb/host/adm5120-pm.c14
1 files changed, 9 insertions, 5 deletions
diff --git a/target/linux/adm5120/files/drivers/usb/host/adm5120-pm.c b/target/linux/adm5120/files/drivers/usb/host/adm5120-pm.c
index 9d49664cb..0ccf829c2 100644
--- a/target/linux/adm5120/files/drivers/usb/host/adm5120-pm.c
+++ b/target/linux/adm5120/files/drivers/usb/host/adm5120-pm.c
@@ -432,13 +432,17 @@ static inline int admhc_rh_resume(struct admhcd *ahcd)
static int admhc_root_hub_state_changes(struct admhcd *ahcd, int changed,
int any_connected)
{
- int poll_rh = 1;
-
- /* keep on polling until RHSC is enabled */
+ /* If INSM is enabled, don't poll */
if (admhc_readl(ahcd, &ahcd->regs->int_enable) & ADMHC_INTR_INSM)
- poll_rh = 0;
+ return 0;
- return poll_rh;
+ /* If no status changes are pending, enable status-change interrupts */
+ if (!changed) {
+ admhc_intr_enable(ahcd, ADMHC_INTR_INSM);
+ return 0;
+ }
+
+ return 1;
}
#endif /* CONFIG_PM */