usb: mtu3: fix ip sleep auto-exit issue when enable DRD mode

Ip sleep will auto exit if vbus comparison circuit of u2 phy is
disabled when system tries to enter suspend mode, so get vbus-valid
status from mac but not from u2 phy when enable DRD mode to fix
the issue.

Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>

diff --git a/drivers/usb/mtu3/mtu3_hw_regs.h b/drivers/usb/mtu3/mtu3_hw_regs.h
index 2123672..06b2966 100644 (file)
--- a/drivers/usb/mtu3/mtu3_hw_regs.h
+++ b/drivers/usb/mtu3/mtu3_hw_regs.h
@@ -462,10 +462,12 @@
 #define SSUSB_U3_PORT_DIS              BIT(0)
 
 /* U3D_SSUSB_U2_CTRL_0P */
+#define SSUSB_U2_PORT_VBUSVALID        BIT(9)
 #define SSUSB_U2_PORT_OTG_SEL          BIT(7)
-#define SSUSB_U2_PORT_HOST_SEL         BIT(2)
+#define SSUSB_U2_PORT_HOST             BIT(2)
 #define SSUSB_U2_PORT_PDN              BIT(1)
 #define SSUSB_U2_PORT_DIS              BIT(0)
+#define SSUSB_U2_PORT_HOST_SEL (SSUSB_U2_PORT_VBUSVALID | SSUSB_U2_PORT_HOST)
 
 /* U3D_SSUSB_DEV_RST_CTRL */
 #define SSUSB_DEV_SW_RST               BIT(0)