usb: otg: TWL6030 Save the last event in otg_transceiver

Save the last event in the otg_transceiver so that it can used in the
musb driver and gadget driver to configure the musb and enable the
vbus for host mode and OTG mode, if the device is connected during boot.

Signed-off-by: Hema HK <hemahk@ti.com>
Cc: Tony Lindgren <tony@atomide.com>
Cc: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>

2 files changed, 4 insertions, 0 deletions

diff --git a/drivers/usb/otg/twl6030-usb.c b/drivers/usb/otg/twl6030-usb.c
index b4eda02c97f7..05f17b77d54c 100644
--- a/drivers/usb/otg/twl6030-usb.c
+++ b/drivers/usb/otg/twl6030-usb.c
@@ -262,11 +262,13 @@ static irqreturn_t twl6030_usb_irq(int irq, void *_twl)
                         twl->otg.default_a = false;
                         twl->otg.state = OTG_STATE_B_IDLE;
                         twl->linkstat = status;
+                        twl->otg.last_event = status;
                         blocking_notifier_call_chain(&twl->otg.notifier,
                                                 status, twl->otg.gadget);
                 } else {
                         status = USB_EVENT_NONE;
                         twl->linkstat = status;
+                        twl->otg.last_event = status;
                         blocking_notifier_call_chain(&twl->otg.notifier,
                                                 status, twl->otg.gadget);
                         if (twl->asleep) {
@@ -299,6 +301,7 @@ static irqreturn_t twl6030_usbotg_irq(int irq, void *_twl)
                 twl->otg.default_a = true;
                 twl->otg.state = OTG_STATE_A_IDLE;
                 twl->linkstat = status;
+                twl->otg.last_event = status;
                 blocking_notifier_call_chain(&twl->otg.notifier, status,
                                                         twl->otg.gadget);
         } else  {
diff --git a/include/linux/usb/otg.h b/include/linux/usb/otg.h
index a1a1e7a73ec9..da511eec3cb8 100644
--- a/include/linux/usb/otg.h
+++ b/include/linux/usb/otg.h
@@ -66,6 +66,7 @@ struct otg_transceiver {
 
         u8                      default_a;
         enum usb_otg_state      state;
+        enum usb_xceiv_events   last_event;
 
         struct usb_bus          *host;
         struct usb_gadget       *gadget;