diff options
| author | Chunfeng Yun <chunfeng.yun@mediatek.com> | 2018-11-29 10:34:36 +0800 |
|---|---|---|
| committer | Felipe Balbi <felipe.balbi@linux.intel.com> | 2018-12-05 11:12:28 +0200 |
| commit | 47b6f8bf870035d420614844de5e308abe505e8a (patch) | |
| tree | 3b66d4b6d288f4cc8de5f299fa7c751c0be10115 /drivers/usb/mtu3/mtu3_core.c | |
| parent | 49187dd14cc84f0ff7db2876c43ad510eeec04b0 (diff) | |
usb: mtu3: clear SOFTCONN when clear USB3_EN if work as HS mode
When the controller supports SS mode, but works as HS mode, the
SOFTCONN will not be cleared automatically when clear USB3_EN
by default, this cause an issue that can't disconnect from host,
so clear SOFTCONN when clear USB3_EN when the class driver want
to disable the D+ pullup.
Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Diffstat (limited to 'drivers/usb/mtu3/mtu3_core.c')
| -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 b6b20949d63a..4fee200795a5 100644 --- a/drivers/usb/mtu3/mtu3_core.c +++ b/drivers/usb/mtu3/mtu3_core.c @@ -586,6 +586,8 @@ static void mtu3_regs_init(struct mtu3 *mtu) 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); + /* auto clear SOFT_CONN when clear USB3_EN if work as HS */ + mtu3_setbits(mbase, U3D_U3U2_SWITCH_CTRL, SOFTCON_CLR_AUTO_EN); } mtu3_set_speed(mtu); |