diff options
| author | Chunfeng Yun <chunfeng.yun@mediatek.com> | 2018-11-29 10:34:34 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-12-05 10:14:06 +0100 |
| commit | e802972433f7cee173ec3ffe470d51b39029de9b (patch) | |
| tree | 550fd287639faf4fe0d79e19e833c1dfabcb29c8 /drivers/usb/mtu3/mtu3_core.c | |
| parent | 29ae096ef93a9df78a4b86e49ef916afa8e7c34b (diff) | |
usb: mtu3: fix the issue about SetFeature(U1/U2_Enable)
Fix the issue: device doesn't accept LGO_U1/U2:
1. set SW_U1/U2_ACCEPT_ENABLE to eanble controller to accept LGO_U1/U2
by default;
2. enable/disable controller to initiate requests for transition into
U1/U2 by SW_U1/U2_REQUEST_ENABLE instead of SW_U1/U2_ACCEPT_ENABLE;
Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/mtu3/mtu3_core.c')
| -rw-r--r-- | drivers/usb/mtu3/mtu3_core.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/usb/mtu3/mtu3_core.c b/drivers/usb/mtu3/mtu3_core.c index 981e4e8c5c13..1ffc0bc31c1d 100644 --- a/drivers/usb/mtu3/mtu3_core.c +++ b/drivers/usb/mtu3/mtu3_core.c @@ -578,8 +578,10 @@ static void mtu3_regs_init(struct mtu3 *mtu) if (mtu->is_u3_ip) { /* disable LGO_U1/U2 by default */ mtu3_clrbits(mbase, U3D_LINK_POWER_CONTROL, - SW_U1_ACCEPT_ENABLE | SW_U2_ACCEPT_ENABLE | SW_U1_REQUEST_ENABLE | SW_U2_REQUEST_ENABLE); + /* enable accept LGO_U1/U2 link command from host */ + mtu3_setbits(mbase, U3D_LINK_POWER_CONTROL, + SW_U1_ACCEPT_ENABLE | SW_U2_ACCEPT_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 */ |