usb: musb: core: Handle Babble condition only in HOST mode

BABBLE and RESET share the same interrupt. The interrupt
is considered to be RESET if MUSB is in peripheral mode and
as a BABBLE if MUSB is in HOST mode.

Handle babble condition iff MUSB is in HOST mode.

Fixes: ca88fc2ef0d7 (usb: musb: add a work_struct to recover from babble errors)
Tested-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: George Cherian <george.cherian@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 61da471b7aed2c485039c19353d38a90cab429eb..eff3c5cf84f48e8489c605d5bf24915809f109ca 100644 (file)
--- a/drivers/usb/musb/musb_core.c
+++ b/drivers/usb/musb/musb_core.c
@@ -849,7 +849,7 @@ b_host:
        }
 
        /* handle babble condition */
-       if (int_usb & MUSB_INTR_BABBLE)
+       if (int_usb & MUSB_INTR_BABBLE && is_host_active(musb))
                schedule_work(&musb->recover_work);
 
 #if 0