diff options
| author | Chunfeng Yun <chunfeng.yun@mediatek.com> | 2016-12-07 15:24:13 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2016-12-07 09:37:24 +0100 |
| commit | c7d4abbcb19eae4cb2b4e4b1f5a0b122200c4db1 (patch) | |
| tree | 56ceec07a3a8f382ecf027299b2982d4a0f1b626 /drivers/usb/mtu3 | |
| parent | 918b8ac55b6c809b70aa05c279087109584e393e (diff) | |
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 <chunfeng.yun@mediatek.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/mtu3')
| -rw-r--r-- | drivers/usb/mtu3/mtu3_core.c | 2 |
1 files changed, 2 insertions, 0 deletions
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); |