From: Felipe Balbi <balbi@ti.com>
Date: Thu, 26 Feb 2015 17:31:49 +0000 (-0600)
Subject: usb: musb: don't touch devctl from babble recovery
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=ba7ee8bb313c4a55066c4da30292aeb9abac82d8;p=GitHub%2Fexynos8895%2Fandroid_kernel_samsung_universal8895.git

usb: musb: don't touch devctl from babble recovery

We do *not* want to touch devctl at all when
trying to recover from babble. All we want to
do is mask IRQs until we're done without our
babble recovery, at which point we will unmask
IRQs.

Tested-by: Bin Liu <b-liu@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
---

diff --git a/drivers/usb/musb/musb_core.c b/drivers/usb/musb/musb_core.c
index 8ae24266f1a8..a4e524cb8416 100644
--- a/drivers/usb/musb/musb_core.c
+++ b/drivers/usb/musb/musb_core.c
@@ -884,7 +884,7 @@ b_host:
 				dev_err(musb->controller, "Babble\n");
 
 				if (is_host_active(musb)) {
-					musb_generic_disable(musb);
+					musb_disable_interrupts(musb);
 					schedule_delayed_work(&musb->recover_work,
 							msecs_to_jiffies(100));
 				}
@@ -1838,8 +1838,10 @@ static void musb_recover_work(struct work_struct *data)
 	int status, ret;
 
 	ret  = musb_platform_reset(musb);
-	if (ret)
+	if (ret) {
+		musb_enable_interrupts(musb);
 		return;
+	}
 
 	usb_phy_vbus_off(musb->xceiv);
 	usleep_range(100, 200);