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usb: mtu3: clear dual mode of u3port when disable device 

If not clear u3port's dual mode when disable device, the IP
will fail to enter sleep mode when suspend.

Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
Link: https://lore.kernel.org/r/1595834101-13094-10-git-send-email-chunfeng.yun@mediatek.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Chunfeng Yun 2020-07-27 15:14:59 +08:00 committed by Greg Kroah-Hartman
parent 54402373c4
commit f1e51e99ed
1 changed files with 5 additions and 1 deletions
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6
drivers/usb/mtu3/mtu3_core.c
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@ -131,8 +131,12 @@ static void mtu3_device_disable(struct mtu3 *mtu)
mtu3_setbits(ibase, SSUSB_U2_CTRL(0),
SSUSB_U2_PORT_DIS | SSUSB_U2_PORT_PDN);
if (mtu->ssusb->dr_mode == USB_DR_MODE_OTG)
if (mtu->ssusb->dr_mode == USB_DR_MODE_OTG) {
mtu3_clrbits(ibase, SSUSB_U2_CTRL(0), SSUSB_U2_PORT_OTG_SEL);
if (mtu->is_u3_ip)
mtu3_clrbits(ibase, SSUSB_U3_CTRL(0),
SSUSB_U3_PORT_DUAL_MODE);
}
mtu3_setbits(ibase, U3D_SSUSB_IP_PW_CTRL2, SSUSB_IP_DEV_PDN);
}