summaryrefslogtreecommitdiffstats
path: root/drivers/usb/chipidea
diff options
context:
space:
mode:
authorGreg Kroah-Hartman <gregkh@linuxfoundation.org>2020-07-20 09:41:30 +0200
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2020-07-20 09:41:30 +0200
commiteed3c957dd8cb794d6010137266cd91e0502c86d (patch)
treef2e8a6272193c9f773d8327cf7f24e799dae8f32 /drivers/usb/chipidea
parent313da01ad524771046beddb18faffc5b3caf930f (diff)
parentba47d845d715a010f7b51f6f89bae32845e6acb7 (diff)
downloadlinux-eed3c957dd8cb794d6010137266cd91e0502c86d.tar.bz2
Merge 5.8-rc6 into usb-next
We need the USB fixes in here as well. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/chipidea')
-rw-r--r--drivers/usb/chipidea/core.c24
1 files changed, 24 insertions, 0 deletions
diff --git a/drivers/usb/chipidea/core.c b/drivers/usb/chipidea/core.c
index 1016596532a9..5c2de8185097 100644
--- a/drivers/usb/chipidea/core.c
+++ b/drivers/usb/chipidea/core.c
@@ -1244,6 +1244,29 @@ static void ci_controller_suspend(struct ci_hdrc *ci)
enable_irq(ci->irq);
}
+/*
+ * Handle the wakeup interrupt triggered by extcon connector
+ * We need to call ci_irq again for extcon since the first
+ * interrupt (wakeup int) only let the controller be out of
+ * low power mode, but not handle any interrupts.
+ */
+static void ci_extcon_wakeup_int(struct ci_hdrc *ci)
+{
+ struct ci_hdrc_cable *cable_id, *cable_vbus;
+ u32 otgsc = hw_read_otgsc(ci, ~0);
+
+ cable_id = &ci->platdata->id_extcon;
+ cable_vbus = &ci->platdata->vbus_extcon;
+
+ if (!IS_ERR(cable_id->edev) && ci->is_otg &&
+ (otgsc & OTGSC_IDIE) && (otgsc & OTGSC_IDIS))
+ ci_irq(ci->irq, ci);
+
+ if (!IS_ERR(cable_vbus->edev) && ci->is_otg &&
+ (otgsc & OTGSC_BSVIE) && (otgsc & OTGSC_BSVIS))
+ ci_irq(ci->irq, ci);
+}
+
static int ci_controller_resume(struct device *dev)
{
struct ci_hdrc *ci = dev_get_drvdata(dev);
@@ -1276,6 +1299,7 @@ static int ci_controller_resume(struct device *dev)
enable_irq(ci->irq);
if (ci_otg_is_fsm_mode(ci))
ci_otg_fsm_wakeup_by_srp(ci);
+ ci_extcon_wakeup_int(ci);
}
return 0;