diff options
| author | Chunfeng Yun <chunfeng.yun@mediatek.com> | 2016-10-19 10:28:26 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2016-10-27 17:02:41 +0200 |
| commit | d0ed062a8b75b9c9ba5a942894636f2d9bb72040 (patch) | |
| tree | 13f0860c5451f03778668e823b7c9321b5089d00 /drivers/usb/mtu3/mtu3_host.c | |
| parent | b3f4e727c1ecec36e628e89298349d9c51a32aac (diff) | |
usb: mtu3: dual-role mode support
support dual-role mode; there are two ways to switch between
host and device modes, one is by idpin, another is by debugfs
which depends on user input.
Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/mtu3/mtu3_host.c')
| -rw-r--r-- | drivers/usb/mtu3/mtu3_host.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/usb/mtu3/mtu3_host.c b/drivers/usb/mtu3/mtu3_host.c index 361d6d844ce5..cd4d01087855 100644 --- a/drivers/usb/mtu3/mtu3_host.c +++ b/drivers/usb/mtu3/mtu3_host.c @@ -230,10 +230,16 @@ static void ssusb_host_setup(struct ssusb_mtk *ssusb) * if support OTG, gadget driver will switch port0 to device mode */ ssusb_host_enable(ssusb); + + /* if port0 supports dual-role, works as host mode by default */ + ssusb_set_vbus(&ssusb->otg_switch, 1); } static void ssusb_host_cleanup(struct ssusb_mtk *ssusb) { + if (ssusb->is_host) + ssusb_set_vbus(&ssusb->otg_switch, 0); + ssusb_host_disable(ssusb, false); } |