ENGR00176147-2: usb: pass the wakeup event to pdata

The host driver needs to differentiate wakeup event.

Signed-off-by: Peter Chen <peter.chen@freescale.com>

3 files changed, 17 insertions, 15 deletions

diff --git a/arch/arm/mach-mx5/usb_dr.c b/arch/arm/mach-mx5/usb_dr.c
index 36e9eac07624..7f0d9026e260 100755
--- a/arch/arm/mach-mx5/usb_dr.c
+++ b/arch/arm/mach-mx5/usb_dr.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2005-2011 Freescale Semiconductor, Inc. All Rights Reserved.
+ * Copyright (C) 2005-2012 Freescale Semiconductor, Inc. All Rights Reserved.
  */
 
 /*
@@ -225,7 +225,6 @@ static void host_wakeup_handler(struct fsl_usb2_platform_data *pdata)
 {
 	_host_wakeup_enable(pdata, false);
 	_host_phy_lowpower_suspend(pdata, false);
-	pdata->wakeup_event = 1;
 }
 /* End of host related operation for DR port */
 #endif /* CONFIG_USB_EHCI_ARC_OTG */
@@ -262,22 +261,27 @@ static enum usb_wakeup_event _is_device_wakeup(struct fsl_usb2_platform_data *pd
 	pr_debug("the otgsc is 0x%x, usbsts is 0x%x, portsc is 0x%x, wakeup_irq is 0x%x\n", UOG_OTGSC, UOG_USBSTS, UOG_PORTSC1, wakeup_req);
 
 	/* if ID=1, it is a device wakeup event */
-	if (wakeup_req && (UOG_OTGSC & OTGSC_STS_USB_ID) && (UOG_PORTSC1 & PORTSC_PORT_FORCE_RESUME)) {
-		printk(KERN_INFO "otg udc wakeup, host sends resume signal\n");
-		return true;
-	}
 	if (wakeup_req && (UOG_OTGSC & OTGSC_STS_USB_ID) && (UOG_USBSTS & USBSTS_URI)) {
 		printk(KERN_INFO "otg udc wakeup, host sends reset signal\n");
-		return true;
+		return WAKEUP_EVENT_DPDM;
+	}
+	if (wakeup_req && (UOG_OTGSC & OTGSC_STS_USB_ID) &&  \
+		((UOG_USBSTS & USBSTS_PCI) || (UOG_PORTSC1 & PORTSC_PORT_FORCE_RESUME))) {
+		/*
+		 * When the line state from J to K, the Port Change Detect bit
+		 * in the USBSTS register is also set to '1'.
+		 */
+		printk(KERN_INFO "otg udc wakeup, host sends resume signal\n");
+		return WAKEUP_EVENT_DPDM;
 	}
 	if (wakeup_req && (UOG_OTGSC & OTGSC_STS_USB_ID) && (UOG_OTGSC & OTGSC_STS_A_VBUS_VALID) \
 		&& (UOG_OTGSC & OTGSC_IS_B_SESSION_VALID)) {
 		printk(KERN_INFO "otg udc vbus rising wakeup\n");
-		return true;
+		return WAKEUP_EVENT_VBUS;
 	}
 	if (wakeup_req && (UOG_OTGSC & OTGSC_STS_USB_ID) && !(UOG_OTGSC & OTGSC_STS_A_VBUS_VALID)) {
 		printk(KERN_INFO "otg udc vbus falling wakeup\n");
-		return true;
+		return WAKEUP_EVENT_VBUS;
 	}
 
 	return WAKEUP_EVENT_INVALID;
diff --git a/arch/arm/mach-mx5/usb_h1.c b/arch/arm/mach-mx5/usb_h1.c
index 3d692e90df00..e291fb7b5708 100755
--- a/arch/arm/mach-mx5/usb_h1.c
+++ b/arch/arm/mach-mx5/usb_h1.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2005-2011 Freescale Semiconductor, Inc. All Rights Reserved.
+ * Copyright (C) 2005-2012 Freescale Semiconductor, Inc. All Rights Reserved.
  */
 
 /*
@@ -124,7 +124,7 @@ static enum usb_wakeup_event _is_usbh1_wakeup(struct fsl_usb2_platform_data *pda
 	int wakeup_req = USBCTRL & UCTRL_H1WIR;
 
 	if (wakeup_req)
-		return !WAKEUP_EVENT_INVALID;
+		return WAKEUP_EVENT_DPDM;
 
 	return WAKEUP_EVENT_INVALID;
 }
@@ -133,7 +133,6 @@ static void h1_wakeup_handler(struct fsl_usb2_platform_data *pdata)
 {
 	_wake_up_enable(pdata, false);
 	_phy_lowpower_suspend(pdata, false);
-	pdata->wakeup_event = 1;
 }
 
 static void usbh1_wakeup_event_clear(void)
diff --git a/arch/arm/mach-mx5/usb_h2.c b/arch/arm/mach-mx5/usb_h2.c
index 37e847640a7b..1f7d0a707e7c 100755
--- a/arch/arm/mach-mx5/usb_h2.c
+++ b/arch/arm/mach-mx5/usb_h2.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2005-2011 Freescale Semiconductor, Inc. All Rights Reserved.
+ * Copyright (C) 2005-2012 Freescale Semiconductor, Inc. All Rights Reserved.
  */
 
 /*
@@ -104,7 +104,7 @@ static enum usb_wakeup_event _is_usbh2_wakeup(struct fsl_usb2_platform_data *pda
 	int wakeup_req = USBCTRL & UCTRL_H2WIR;
 
 	if (wakeup_req)
-		return !WAKEUP_EVENT_INVALID;
+		return WAKEUP_EVENT_DPDM;
 
 	return WAKEUP_EVENT_INVALID;
 }
@@ -113,7 +113,6 @@ static void h2_wakeup_handler(struct fsl_usb2_platform_data *pdata)
 {
 	_wake_up_enable(pdata, false);
 	_phy_lowpower_suspend(pdata, false);
-	pdata->wakeup_event = 1;
 }
 
 static void usbh2_wakeup_event_clear(void)