[PATCH 3/3] usb: mtu3: fix ip sleep auto-exit issue when enable DRD mode

From: Chunfeng Yun
Date: Tue Jul 25 2017 - 04:11:10 EST


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@xxxxxxxxxxxx>
---
drivers/usb/mtu3/mtu3_hw_regs.h | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/usb/mtu3/mtu3_hw_regs.h b/drivers/usb/mtu3/mtu3_hw_regs.h
index 2123672..06b2966 100644
--- 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)
--
1.7.9.5