diff options
| author |   Chunfeng Yun <chunfeng.yun@mediatek.com> | 2018-11-29 10:34:34 +0800 |
|---|---|---|
| committer |   Felipe Balbi <felipe.balbi@linux.intel.com> | 2018-12-05 11:12:23 +0200 |
| commit | a0678e2eed41e81004308693ac84ea95614b0920 (patch) | |
| tree | affbc76e973aa822a3e727bf8b61fca725d3c35a /drivers/usb/mtu3 | |
| parent | usb: mtu3: enable hardware remote wakeup from L1 automatically (diff) | |
| download | linux-dev-a0678e2eed41e81004308693ac84ea95614b0920.tar.xz linux-dev-a0678e2eed41e81004308693ac84ea95614b0920.zip | |
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: Felipe Balbi <felipe.balbi@linux.intel.com>
Diffstat (limited to 'drivers/usb/mtu3')
| -rw-r--r-- | drivers/usb/mtu3/mtu3_core.c | 4 | ||||
| -rw-r--r-- | drivers/usb/mtu3/mtu3_gadget_ep0.c | 8 |
2 files changed, 7 insertions, 5 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 */ diff --git a/drivers/usb/mtu3/mtu3_gadget_ep0.c b/drivers/usb/mtu3/mtu3_gadget_ep0.c index 25216e79cd6e..3c464d8ae023 100644 --- a/drivers/usb/mtu3/mtu3_gadget_ep0.c +++ b/drivers/usb/mtu3/mtu3_gadget_ep0.c @@ -336,9 +336,9 @@ static int ep0_handle_feature_dev(struct mtu3 *mtu, lpc = mtu3_readl(mbase, U3D_LINK_POWER_CONTROL); if (set) - lpc |= SW_U1_ACCEPT_ENABLE; + lpc |= SW_U1_REQUEST_ENABLE; else - lpc &= ~SW_U1_ACCEPT_ENABLE; + lpc &= ~SW_U1_REQUEST_ENABLE; mtu3_writel(mbase, U3D_LINK_POWER_CONTROL, lpc); mtu->u1_enable = !!set; @@ -351,9 +351,9 @@ static int ep0_handle_feature_dev(struct mtu3 *mtu, lpc = mtu3_readl(mbase, U3D_LINK_POWER_CONTROL); if (set) - lpc |= SW_U2_ACCEPT_ENABLE; + lpc |= SW_U2_REQUEST_ENABLE; else - lpc &= ~SW_U2_ACCEPT_ENABLE; + lpc &= ~SW_U2_REQUEST_ENABLE; mtu3_writel(mbase, U3D_LINK_POWER_CONTROL, lpc); mtu->u2_enable = !!set; |