usb: otg: add proxy_wait handler to otg_id
Some otg_id handlers can detect what's connected but can't detect a change.
This allows that handler to pass off the waiting for ID change to a proxy.
Change-Id: Ib38b750c3da4bffc35e37b620ecee37c5d64d31f
Signed-off-by: Erik Gilling <konkers@android.com>
diff --git a/drivers/usb/otg/otg_id.c b/drivers/usb/otg/otg_id.c
index 2398b1a..ce22b46 100644
--- a/drivers/usb/otg/otg_id.c
+++ b/drivers/usb/otg/otg_id.c
@@ -44,16 +44,24 @@
{
int ret;
struct otg_id_notifier_block *otg_id_nb;
-
+ bool proxy_wait = false;
if (plist_head_empty(&otg_id_plist))
return;
plist_for_each_entry(otg_id_nb, &otg_id_plist, p) {
- ret = otg_id_nb->detect(otg_id_nb);
+ if (proxy_wait) {
+ if (otg_id_nb->proxy_wait)
+ ret = otg_id_nb->proxy_wait(otg_id_nb);
+ } else {
+ ret = otg_id_nb->detect(otg_id_nb);
+ }
if (ret == OTG_ID_HANDLED) {
otg_id_active = otg_id_nb;
return;
}
+ if (ret == OTG_ID_PROXY_WAIT)
+ proxy_wait = true;
+
}
WARN(1, "otg id event not handled");