Commit 4da72e6d authored by Chunfeng Yun's avatar Chunfeng Yun Committed by Felipe Balbi

usb: mtu3: set otg_sel for u2port only if works as dual-role mode

When set otg_sel(SSUSB_U2_PORT_OTG_SEL) for u2port which supports
dual-role mode, the controller will automatically switch mode
between host and device according to IDDIG signal. But if the
u2port only supports device mode, and no IDDIG pin is provided,
setting otg_sel may cause failure of detection by host.
So set it only for dual-role mode.
Signed-off-by: default avatarChunfeng Yun <chunfeng.yun@mediatek.com>
Signed-off-by: default avatarFelipe Balbi <felipe.balbi@linux.intel.com>
parent dd9d2f3a
......@@ -115,6 +115,8 @@ static int mtu3_device_enable(struct mtu3 *mtu)
mtu3_clrbits(ibase, SSUSB_U2_CTRL(0),
(SSUSB_U2_PORT_DIS | SSUSB_U2_PORT_PDN |
SSUSB_U2_PORT_HOST_SEL));
if (mtu->ssusb->dr_mode == USB_DR_MODE_OTG)
mtu3_setbits(ibase, SSUSB_U2_CTRL(0), SSUSB_U2_PORT_OTG_SEL);
return ssusb_check_clocks(mtu->ssusb, check_clk);
......@@ -130,7 +132,10 @@ 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)
mtu3_clrbits(ibase, SSUSB_U2_CTRL(0), SSUSB_U2_PORT_OTG_SEL);
mtu3_setbits(ibase, U3D_SSUSB_IP_PW_CTRL2, SSUSB_IP_DEV_PDN);
}
......
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