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Merge "usb: f_gsi: Initiate remote-wakeup if notification already queued"

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qctecmdr 2021-01-26 22:59:00 -08:00 • committed by Gerrit - the friendly Code Review server
commit 82ee11b482
1 changed files with 17 additions and 0 deletions
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17
drivers/usb/gadget/function/f_gsi.c
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@ -2540,6 +2540,9 @@ static void gsi_disable(struct usb_function *f)
atomic_set(&gsi->connected, 0);
del_timer(&gsi->gsi_rw_timer);
gsi->debugfs_rw_timer_enable = 0;
if (gsi->prot_id == IPA_USB_RNDIS)
rndis_uninit(gsi->params);
@ -2603,6 +2606,16 @@ static void gsi_suspend(struct usb_function *f)
post_event(&gsi->d_port, EVT_SUSPEND);
queue_delayed_work(gsi->d_port.ipa_usb_wq, &gsi->d_port.usb_ipa_w, 0);
log_event_dbg("gsi suspended");
/*
* If host suspended bus without receiving notification request then
* initiate remote-wakeup. As driver won't be able to do it later since
* notification request is already queued.
*/
if (gsi->c_port.notify_req_queued && usb_gsi_remote_wakeup_allowed(f)) {
mod_timer(&gsi->gsi_rw_timer, jiffies + msecs_to_jiffies(2000));
log_event_dbg("%s: pending response, arm rw_timer\n", __func__);
}
}
static void gsi_resume(struct usb_function *f)
@ -2620,6 +2633,10 @@ static void gsi_resume(struct usb_function *f)
gsi->func_is_suspended)
return;
/* Keep timer enabled if user enabled using debugfs */
if (!gsi->debugfs_rw_timer_enable)
del_timer(&gsi->gsi_rw_timer);
if (gsi->c_port.notify && !gsi->c_port.notify->desc)
config_ep_by_speed(cdev->gadget, f, gsi->c_port.notify);