usb: renesas_usbhs: add autonomy mode

Current renesas_usbhs was designed to save power when USB is not connected.
And it assumed platform uses callback to notify connection/disconnection
by external interrupt.

But some SuperH / platform board doesn't have such feature.

This patch adds autonomy mode which detect USB connection/disconnection
by internal interrupt.
But power will be always ON when autonomy mode is selected.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 3 insertions, 0 deletions

diff --git a/drivers/usb/renesas_usbhs/common.h b/drivers/usb/renesas_usbhs/common.h
index 0157eb805cf6..0aadcb402764 100644
--- a/drivers/usb/renesas_usbhs/common.h
+++ b/drivers/usb/renesas_usbhs/common.h
@@ -105,6 +105,7 @@ struct usbhs_priv;
 #define SACKE   (1 << 4)        /* Setup Transaction ACK Interrupt Enable */
 
 /* INTSTS0 */
+#define VBINT   (1 << 15)       /* VBUS0_0 and VBUS1_0 Interrupt Status */
 #define DVST    (1 << 12)       /* Device State Transition Interrupt Status */
 #define CTRT    (1 << 11)       /* Control Stage Interrupt Status */
 #define BEMP    (1 << 10)       /* Buffer Empty Interrupt Status */
@@ -182,6 +183,8 @@ struct usbhs_priv {
 
         spinlock_t              lock;
 
+        u32 flags;
+
         /*
          * module control
          */