diff options
| author | Sebastian Andrzej Siewior <bigeasy@linutronix.de> | 2013-10-15 18:29:22 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-11-29 11:28:11 -0800 |
| commit | 43ac9e1999b72122ee20e942263584f95d993aaa (patch) | |
| tree | fa9914ab603eb45fcb21b68a61f1e3d1c79a0269 /scripts/patch-kernel | |
| parent | bbc21afd5bd6d52976d74afc73ef2a9e9db631e6 (diff) | |
usb: musb: call musb_start() only once in OTG mode
commit ae44df2e21b50f9fff28ac75c57e399c04df812c upstream.
In commit 001dd84 ("usb: musb: start musb on the udc side, too") it was
ensured that the state engine is started also in OTG mode after a
removal / insertion of the gadget.
Unfortunately this change also introduced a bug: If the device is
configured as OTG and it connected with a remote host _without_ loading
a gadget then we bug() later (because musb->otg->gadget is not
initialized).
Initially I assumed it might be nice to have the host part of musb in
OTG mode working without having a gadget loaded. This bug and fact that
it wasn't working like this before the host/gadget split made me realize
that this was a silly idea.
This patch now introduces back the old behavior where in OTG mode the
host mode is only working after the gadget has been loaded.
Cc: Daniel Mack <zonque@gmail.com>
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'scripts/patch-kernel')
0 files changed, 0 insertions, 0 deletions