diff options
| author | Chunfeng Yun <chunfeng.yun@mediatek.com> | 2021-07-15 17:07:57 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-07-27 15:58:37 +0200 |
| commit | 427c66422e14b8468ee005aa6edf76ef0c2a8fc2 (patch) | |
| tree | 67b8054585d58c8c06f69f47fd2107a5b341c51a /drivers/usb/mtu3/mtu3_gadget.c | |
| parent | 6244831543ec269f40ed9032bb8194c089049718 (diff) | |
usb: mtu3: support suspend/resume for device mode
Support suspend/resume for device mode if the device is not
connected with a host, otherwise reject to suspend.
Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
Link: https://lore.kernel.org/r/1626340078-29111-13-git-send-email-chunfeng.yun@mediatek.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/mtu3/mtu3_gadget.c')
| -rw-r--r-- | drivers/usb/mtu3/mtu3_gadget.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/usb/mtu3/mtu3_gadget.c b/drivers/usb/mtu3/mtu3_gadget.c index 5e21ba05ebf0..7b54631ca335 100644 --- a/drivers/usb/mtu3/mtu3_gadget.c +++ b/drivers/usb/mtu3/mtu3_gadget.c @@ -469,6 +469,8 @@ static int mtu3_gadget_pullup(struct usb_gadget *gadget, int is_on) dev_dbg(mtu->dev, "%s (%s) for %sactive device\n", __func__, is_on ? "on" : "off", mtu->is_active ? "" : "in"); + pm_runtime_get_sync(mtu->dev); + /* we'd rather not pullup unless the device is active. */ spin_lock_irqsave(&mtu->lock, flags); @@ -482,6 +484,7 @@ static int mtu3_gadget_pullup(struct usb_gadget *gadget, int is_on) } spin_unlock_irqrestore(&mtu->lock, flags); + pm_runtime_put(mtu->dev); return 0; } @@ -499,6 +502,7 @@ static int mtu3_gadget_start(struct usb_gadget *gadget, } dev_dbg(mtu->dev, "bind driver %s\n", driver->function); + pm_runtime_get_sync(mtu->dev); spin_lock_irqsave(&mtu->lock, flags); @@ -509,6 +513,7 @@ static int mtu3_gadget_start(struct usb_gadget *gadget, mtu3_start(mtu); spin_unlock_irqrestore(&mtu->lock, flags); + pm_runtime_put(mtu->dev); return 0; } |