From c7d4abbcb19eae4cb2b4e4b1f5a0b122200c4db1 Mon Sep 17 00:00:00 2001 From: Chunfeng Yun Date: Wed, 7 Dec 2016 15:24:13 +0800 Subject: usb: mtu3: enable auto switch from U3 to U2 inform mac2 to build U2 link automatically after U3 detect fail without software setting soft_connect. Signed-off-by: Chunfeng Yun Signed-off-by: Greg Kroah-Hartman --- drivers/usb/mtu3/mtu3_core.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'drivers/usb/mtu3') diff --git a/drivers/usb/mtu3/mtu3_core.c b/drivers/usb/mtu3/mtu3_core.c index 603b7f84d31e..c0efc07ef4a5 100644 --- a/drivers/usb/mtu3/mtu3_core.c +++ b/drivers/usb/mtu3/mtu3_core.c @@ -575,6 +575,8 @@ static void mtu3_regs_init(struct mtu3 *mtu) SW_U1_REQUEST_ENABLE | SW_U2_REQUEST_ENABLE); /* device responses to u3_exit from host automatically */ mtu3_clrbits(mbase, U3D_LTSSM_CTRL, SOFT_U3_EXIT_EN); + /* automatically build U2 link when U3 detect fail */ + mtu3_setbits(mbase, U3D_USB2_TEST_MODE, U2U3_AUTO_SWITCH); } mtu3_set_speed(mtu); -- cgit v1.2.3