From 4f9f032c256c3fc8ed23461e71d7acf3363a969f Mon Sep 17 00:00:00 2001 From: Chunfeng Yun Date: Wed, 23 May 2018 16:53:19 +0800 Subject: usb: mtu3: reset gadget when VBUS_FALL interrupt arises When VBUS_FALL interrupt arises, it means U3 device is disconnected with host, so need reset status of gadget Signed-off-by: Chunfeng Yun Signed-off-by: Greg Kroah-Hartman --- drivers/usb/mtu3/mtu3_core.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/usb/mtu3/mtu3_core.c b/drivers/usb/mtu3/mtu3_core.c index 279f9cd7bd6c..eecfd0671362 100644 --- a/drivers/usb/mtu3/mtu3_core.c +++ b/drivers/usb/mtu3/mtu3_core.c @@ -668,8 +668,10 @@ static irqreturn_t mtu3_u3_ltssm_isr(struct mtu3 *mtu) if (ltssm & (HOT_RST_INTR | WARM_RST_INTR)) mtu3_gadget_reset(mtu); - if (ltssm & VBUS_FALL_INTR) + if (ltssm & VBUS_FALL_INTR) { mtu3_ss_func_set(mtu, false); + mtu3_gadget_reset(mtu); + } if (ltssm & VBUS_RISE_INTR) mtu3_ss_func_set(mtu, true); -- cgit v1.2.3