commit a1bd7459db0f192dfdd568265791820aabfa78ba
author Hemant Kumar <hemantk@codeaurora.org> Tue Dec 13 18:13:56 2016 -0800
committer Jack Pham <jackp@codeaurora.org> Thu Mar 23 15:59:19 2017 -0700
tree b8b80a1aeca904162f7311fb4dfab20a9f14e5a3
parent 44cefc58e9f7992c1a99d9fe88ca1da53c60af00

sound: usb: auto suspend device only if it supports remote wakeup

Some usb headsets which do not support remote wakeup when suspended
and resumed by host resulting device disconnect. Hence do not suspend
device if it not remote wake up capable.

Change-Id: Ia2462116582b6e22c44cff88df2872e4127e5e29
Signed-off-by: Hemant Kumar <hemantk@codeaurora.org>

sound/usb/card.c

diff --git a/sound/usb/card.c b/sound/usb/card.c
index 3acfa79..ccf06de 100644
--- a/sound/usb/card.c
+++ b/sound/usb/card.c
@@ -697,6 +697,7 @@
 	usb_chip[chip->index] = chip;
 	chip->num_interfaces++;
 	usb_set_intfdata(intf, chip);
+	intf->needs_remote_wakeup = 1;
 	usb_enable_autosuspend(chip->dev);
 	atomic_dec(&chip->active);
 	mutex_unlock(&register_mutex);