summaryrefslogtreecommitdiff
path: root/drivers/usb/musb
diff options
context:
space:
mode:
authorSebastian Andrzej Siewior <bigeasy@linutronix.de>2013-08-20 20:35:44 +0400
committerFelipe Balbi <balbi@ti.com>2013-08-27 23:18:14 +0400
commit9047428894660f8f46305917e519ab62f7395cac (patch)
tree1661f315da9f809463f606cde44086745619287f /drivers/usb/musb
parent51ef74f6400c731827454d010b35b122103fe9f9 (diff)
downloadlinux-9047428894660f8f46305917e519ab62f7395cac.tar.xz
usb: musb: only remove host/udc if it has been added
musb_shutdown() removes always USB host and device. musb_init_controller() adds host and device depending on port_mode. If port mode is set to HOST then the removal of UDC leads only to: |(NULL device *): gadget not registered. and nothing else happens. If port mode is set to DEVICE and we remove the host then we oops in usb_remove_hcd(). This patch ensures that we only remove host in OTG/host mode and device only in OTG/device mode to avoid any trouble. Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Signed-off-by: Felipe Balbi <balbi@ti.com>
Diffstat (limited to 'drivers/usb/musb')
-rw-r--r--drivers/usb/musb/musb_gadget.c2
-rw-r--r--drivers/usb/musb/musb_host.c2
2 files changed, 4 insertions, 0 deletions
diff --git a/drivers/usb/musb/musb_gadget.c b/drivers/usb/musb/musb_gadget.c
index b7b8b2bc4ee9..9a08679d204d 100644
--- a/drivers/usb/musb/musb_gadget.c
+++ b/drivers/usb/musb/musb_gadget.c
@@ -1812,6 +1812,8 @@ err:
void musb_gadget_cleanup(struct musb *musb)
{
+ if (musb->port_mode == MUSB_PORT_MODE_HOST)
+ return;
usb_del_gadget_udc(&musb->g);
}
diff --git a/drivers/usb/musb/musb_host.c b/drivers/usb/musb/musb_host.c
index a9695f5a92fb..9a2b8c85f19a 100644
--- a/drivers/usb/musb/musb_host.c
+++ b/drivers/usb/musb/musb_host.c
@@ -2628,6 +2628,8 @@ int musb_host_alloc(struct musb *musb)
void musb_host_cleanup(struct musb *musb)
{
+ if (musb->port_mode == MUSB_PORT_MODE_GADGET)
+ return;
usb_remove_hcd(musb->hcd);
musb->hcd = NULL;
}