ENGR00109408 mx25 usb remote wakeup

Add remote wakeup feature for host mode.

Signed-off-by: Albert Chen <r65187@freescale.com>

arch/arm/mach-mx25/usb_dr.c

@@ -19,6 +19,8 @@
 #include <mach/arc_otg.h>
 #include "usb.h"
 
+static void _wake_up_enable(struct fsl_usb2_platform_data *pdata, bool enable);
+
 /*
  * platform data structs
  * 	- Which one to use is determined by CONFIG options in usb.h
@@ -33,6 +35,7 @@ static struct fsl_usb2_platform_data __maybe_unused dr_utmi_config = {
 	.gpio_usb_active   = gpio_usbotg_utmi_active,
 	.gpio_usb_inactive = gpio_usbotg_utmi_inactive,
 	.transceiver       = "utmi",
+	.wake_up_enable = _wake_up_enable,
 };
 
 /*
@@ -88,6 +91,23 @@ static struct platform_device __maybe_unused dr_otg_device = {
 	.num_resources = ARRAY_SIZE(otg_resources),
 };
 
+static void _wake_up_enable(struct fsl_usb2_platform_data *pdata, bool enable)
+{
+	if (get_usb_mode(pdata) == FSL_USB_DR_DEVICE) {
+		if (enable)
+			USBCTRL |= (UCTRL_OWIE | UCTRL_VBUS_WKUP_EN);
+		else {
+			USBCTRL &= ~UCTRL_OWIE;
+			USBCTRL &= ~UCTRL_VBUS_WKUP_EN;
+		}
+	} else {
+		if (enable)
+			USBCTRL |= UCTRL_OWIE;
+		else
+			USBCTRL &= ~UCTRL_OWIE;
+	}
+}
+
 static int __init usb_dr_init(void)
 {
 	pr_debug("%s: \n", __func__);

arch/arm/mach-mx25/usb_h2.c

@@ -21,6 +21,14 @@
 #include <mach/arc_otg.h>
 #include "usb.h"
 
+static void _wake_up_enable(struct fsl_usb2_platform_data *pdata, bool enable)
+{
+	if (enable)
+		USBCTRL |= UCTRL_H2WIE;
+	else
+		USBCTRL &= ~UCTRL_H2WIE;
+}
+
 static struct fsl_usb2_platform_data usbh2_config = {
 	.name              = "Host 2",
 	.platform_init     = fsl_usb_host_init,
@@ -31,6 +39,7 @@ static struct fsl_usb2_platform_data usbh2_config = {
 	.gpio_usb_active   = gpio_usbh2_active,
 	.gpio_usb_inactive = gpio_usbh2_inactive,
 	.transceiver       = "serial",		/* on-chip */
+	.wake_up_enable = _wake_up_enable,
 };
 
 static struct resource usbh2_resources[] = {
@@ -79,10 +88,13 @@ EXPORT_SYMBOL(usbh2_put_xcvr_power);
 
 static int __init usbh2_init(void)
 {
+	struct platform_device *pdev;
 	pr_debug("%s: \n", __func__);
 
-	host_pdev_register(usbh2_resources, ARRAY_SIZE(usbh2_resources),
+	pdev = host_pdev_register(usbh2_resources, ARRAY_SIZE(usbh2_resources),
 			   &usbh2_config);
+	if (pdev)
+		device_init_wakeup(&(pdev->dev), 1);
 	return 0;
 }
 module_init(usbh2_init);

arch/arm/mach-mx51/usb_dr.c

@@ -144,6 +144,14 @@ static void _wake_up_enable(struct fsl_usb2_platform_data *pdata, bool enable)
 			USBCTRL_HOST2 &= ~UCTRL_H2OVBWK_EN;
 			USB_PHY_CTR_FUNC &= ~USB_UTMI_PHYCTRL_CONF2;
 		}
+	} else {
+		if (enable) {
+			USBCTRL |= UCTRL_OWIE;
+			USBCTRL_HOST2 |= (1 << 5);
+		} else {
+			USBCTRL &= ~UCTRL_OWIE;
+			USBCTRL_HOST2 &= ~(1 << 5);
+		}
 	}
 }
 

arch/arm/mach-mx51/usb_h1.c

@@ -77,6 +77,14 @@ static void gpio_usbh1_inactive(void)
 	gpio_free(IOMUX_TO_GPIO(MX51_PIN_USBH1_STP));
 }
 
+static void _wake_up_enable(struct fsl_usb2_platform_data *pdata, bool enable)
+{
+	if (enable)
+		USBCTRL |= UCTRL_H1WIE;
+	else
+		USBCTRL &= ~UCTRL_H1WIE;
+}
+
 static struct fsl_usb2_platform_data usbh1_config = {
 	.name = "Host 1",
 	.platform_init = fsl_usb_host_init,
@@ -86,6 +94,7 @@ static struct fsl_usb2_platform_data usbh1_config = {
 	.power_budget = 500,	/* 500 mA max power */
 	.gpio_usb_active = gpio_usbh1_active,
 	.gpio_usb_inactive = gpio_usbh1_inactive,
+	.wake_up_enable = _wake_up_enable,
 	.transceiver = "isp1504",
 };
 

arch/arm/plat-mxc/usb_common.c

@@ -403,7 +403,7 @@ static int usb_register_remote_wakeup(struct platform_device *pdev)
 	int irq;
 
 	pr_debug("%s: pdev=0x%p \n", __func__, pdev);
-	if (!cpu_is_mx51())
+	if (!cpu_is_mx51() && !cpu_is_mx25())
 		return -ECANCELED;
 
 	res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
@@ -856,25 +856,7 @@ EXPORT_SYMBOL(usb_host_wakeup_irq);
 void usb_host_set_wakeup(struct device *wkup_dev, bool para)
 {
 	struct fsl_usb2_platform_data *pdata = wkup_dev->platform_data;
-
-	/* If this device may wakeup */
-	if (device_may_wakeup(wkup_dev) && para) {
-		if (!strcmp("Host 1", pdata->name)) {
-			USBCTRL |= UCTRL_H1WIE;
-		} else if (!strcmp("DR", pdata->name)) {
-			USBCTRL |= UCTRL_OWIE;
-			/* Enable OTG ID Wakeup */
-			USBCTRL_HOST2 |= (1 << 5);
-		}
-	}
-
-	if (!para) {
-		if (!strcmp("Host 1", pdata->name))
-			USBCTRL &= ~UCTRL_H1WIE;
-		else if (!strcmp("DR", pdata->name)) {
-			USBCTRL &= ~UCTRL_OWIE;
-			USBCTRL_HOST2 &= ~(1 << 5);
-		}
-	}
+	if (pdata->wake_up_enable)
+		pdata->wake_up_enable(pdata, para);
 }
 EXPORT_SYMBOL(usb_host_set_wakeup);

drivers/usb/host/ehci-arc.c

@@ -429,7 +429,6 @@ static int ehci_fsl_drv_remove(struct platform_device *pdev)
 }
 
 #ifdef CONFIG_PM
-extern void usb_host_set_wakeup(struct device *wkup_dev, bool para);
 /* suspend/resume, section 4.3 */
 
 /* These routines rely on the bus (pci, platform, etc)
@@ -514,7 +513,8 @@ static int ehci_fsl_drv_suspend(struct platform_device *pdev,
 	if (!((ehci->transceiver) &&
 			(readl(hcd->regs + 0x1A4) & (1 << 8)))) {
 		/* enable remote wake up irq */
-		usb_host_set_wakeup(&(pdev->dev), true);
+		if (pdata->wake_up_enable)
+			pdata->wake_up_enable(pdata, true);
 
 	/* We CAN NOT enable wake up by connetion and disconnection
 	 * concurrently */