Merge tag 'usb-for-v3.16' of git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb into usb-next

Felipe writes:

usb: patches for v3.16 merge window

Not a lot here during this merge window. Mostly we just have
the usual miscellaneous patches (removal of unnecessary prints,
proper dependencies being added to Kconfig, build warning fixes,
new device ID, etc.

Other than those, the only important new features are the
new support for OS Strings which should help Linux Gadget
Drivers behave better under MS Windows. Also Babble Recovery
implementation for MUSB on AM335x. Lastly, we also have
ARCH_QCOM PHY support though phy-msm.

Signed-of-by: Felipe Balbi <balbi@ti.com>

Conflicts:
	drivers/usb/phy/phy-mv-u3d-usb.c

1 files changed, 133 insertions, 120 deletions

diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c
index 10aaaae9af25..eb69eb9f06c8 100644
--- a/drivers/usb/dwc3/core.c
+++ b/drivers/usb/dwc3/core.c
@@ -486,70 +486,20 @@ static void dwc3_core_exit(struct dwc3 *dwc)
 	phy_exit(dwc->usb3_generic_phy);
 }
 
-#define DWC3_ALIGN_MASK		(16 - 1)
-
-static int dwc3_probe(struct platform_device *pdev)
+static int dwc3_core_get_phy(struct dwc3 *dwc)
 {
-	struct device		*dev = &pdev->dev;
-	struct dwc3_platform_data *pdata = dev_get_platdata(dev);
+	struct device		*dev = dwc->dev;
 	struct device_node	*node = dev->of_node;
-	struct resource		*res;
-	struct dwc3		*dwc;
-
-	int			ret = -ENOMEM;
-
-	void __iomem		*regs;
-	void			*mem;
-
-	mem = devm_kzalloc(dev, sizeof(*dwc) + DWC3_ALIGN_MASK, GFP_KERNEL);
-	if (!mem) {
-		dev_err(dev, "not enough memory\n");
-		return -ENOMEM;
-	}
-	dwc = PTR_ALIGN(mem, DWC3_ALIGN_MASK + 1);
-	dwc->mem = mem;
-
-	res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
-	if (!res) {
-		dev_err(dev, "missing IRQ\n");
-		return -ENODEV;
-	}
-	dwc->xhci_resources[1].start = res->start;
-	dwc->xhci_resources[1].end = res->end;
-	dwc->xhci_resources[1].flags = res->flags;
-	dwc->xhci_resources[1].name = res->name;
-
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	if (!res) {
-		dev_err(dev, "missing memory resource\n");
-		return -ENODEV;
-	}
+	int ret;
 
 	if (node) {
-		dwc->maximum_speed = of_usb_get_maximum_speed(node);
-
 		dwc->usb2_phy = devm_usb_get_phy_by_phandle(dev, "usb-phy", 0);
 		dwc->usb3_phy = devm_usb_get_phy_by_phandle(dev, "usb-phy", 1);
-
-		dwc->needs_fifo_resize = of_property_read_bool(node, "tx-fifo-resize");
-		dwc->dr_mode = of_usb_get_dr_mode(node);
-	} else if (pdata) {
-		dwc->maximum_speed = pdata->maximum_speed;
-
-		dwc->usb2_phy = devm_usb_get_phy(dev, USB_PHY_TYPE_USB2);
-		dwc->usb3_phy = devm_usb_get_phy(dev, USB_PHY_TYPE_USB3);
-
-		dwc->needs_fifo_resize = pdata->tx_fifo_resize;
-		dwc->dr_mode = pdata->dr_mode;
 	} else {
 		dwc->usb2_phy = devm_usb_get_phy(dev, USB_PHY_TYPE_USB2);
 		dwc->usb3_phy = devm_usb_get_phy(dev, USB_PHY_TYPE_USB3);
 	}
 
-	/* default to superspeed if no maximum_speed passed */
-	if (dwc->maximum_speed == USB_SPEED_UNKNOWN)
-		dwc->maximum_speed = USB_SPEED_SUPER;
-
 	if (IS_ERR(dwc->usb2_phy)) {
 		ret = PTR_ERR(dwc->usb2_phy);
 		if (ret == -ENXIO || ret == -ENODEV) {
@@ -600,6 +550,132 @@ static int dwc3_probe(struct platform_device *pdev)
 		}
 	}
 
+	return 0;
+}
+
+static int dwc3_core_init_mode(struct dwc3 *dwc)
+{
+	struct device *dev = dwc->dev;
+	int ret;
+
+	switch (dwc->dr_mode) {
+	case USB_DR_MODE_PERIPHERAL:
+		dwc3_set_mode(dwc, DWC3_GCTL_PRTCAP_DEVICE);
+		ret = dwc3_gadget_init(dwc);
+		if (ret) {
+			dev_err(dev, "failed to initialize gadget\n");
+			return ret;
+		}
+		break;
+	case USB_DR_MODE_HOST:
+		dwc3_set_mode(dwc, DWC3_GCTL_PRTCAP_HOST);
+		ret = dwc3_host_init(dwc);
+		if (ret) {
+			dev_err(dev, "failed to initialize host\n");
+			return ret;
+		}
+		break;
+	case USB_DR_MODE_OTG:
+		dwc3_set_mode(dwc, DWC3_GCTL_PRTCAP_OTG);
+		ret = dwc3_host_init(dwc);
+		if (ret) {
+			dev_err(dev, "failed to initialize host\n");
+			return ret;
+		}
+
+		ret = dwc3_gadget_init(dwc);
+		if (ret) {
+			dev_err(dev, "failed to initialize gadget\n");
+			return ret;
+		}
+		break;
+	default:
+		dev_err(dev, "Unsupported mode of operation %d\n", dwc->dr_mode);
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static void dwc3_core_exit_mode(struct dwc3 *dwc)
+{
+	switch (dwc->dr_mode) {
+	case USB_DR_MODE_PERIPHERAL:
+		dwc3_gadget_exit(dwc);
+		break;
+	case USB_DR_MODE_HOST:
+		dwc3_host_exit(dwc);
+		break;
+	case USB_DR_MODE_OTG:
+		dwc3_host_exit(dwc);
+		dwc3_gadget_exit(dwc);
+		break;
+	default:
+		/* do nothing */
+		break;
+	}
+}
+
+#define DWC3_ALIGN_MASK		(16 - 1)
+
+static int dwc3_probe(struct platform_device *pdev)
+{
+	struct device		*dev = &pdev->dev;
+	struct dwc3_platform_data *pdata = dev_get_platdata(dev);
+	struct device_node	*node = dev->of_node;
+	struct resource		*res;
+	struct dwc3		*dwc;
+
+	int			ret;
+
+	void __iomem		*regs;
+	void			*mem;
+
+	mem = devm_kzalloc(dev, sizeof(*dwc) + DWC3_ALIGN_MASK, GFP_KERNEL);
+	if (!mem) {
+		dev_err(dev, "not enough memory\n");
+		return -ENOMEM;
+	}
+	dwc = PTR_ALIGN(mem, DWC3_ALIGN_MASK + 1);
+	dwc->mem = mem;
+	dwc->dev = dev;
+
+	res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
+	if (!res) {
+		dev_err(dev, "missing IRQ\n");
+		return -ENODEV;
+	}
+	dwc->xhci_resources[1].start = res->start;
+	dwc->xhci_resources[1].end = res->end;
+	dwc->xhci_resources[1].flags = res->flags;
+	dwc->xhci_resources[1].name = res->name;
+
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	if (!res) {
+		dev_err(dev, "missing memory resource\n");
+		return -ENODEV;
+	}
+
+	if (node) {
+		dwc->maximum_speed = of_usb_get_maximum_speed(node);
+
+		dwc->needs_fifo_resize = of_property_read_bool(node, "tx-fifo-resize");
+		dwc->dr_mode = of_usb_get_dr_mode(node);
+	} else if (pdata) {
+		dwc->maximum_speed = pdata->maximum_speed;
+
+		dwc->needs_fifo_resize = pdata->tx_fifo_resize;
+		dwc->dr_mode = pdata->dr_mode;
+	}
+
+	/* default to superspeed if no maximum_speed passed */
+	if (dwc->maximum_speed == USB_SPEED_UNKNOWN)
+		dwc->maximum_speed = USB_SPEED_SUPER;
+
+	ret = dwc3_core_get_phy(dwc);
+	if (ret)
+		return ret;
+
 	dwc->xhci_resources[0].start = res->start;
 	dwc->xhci_resources[0].end = dwc->xhci_resources[0].start +
 					DWC3_XHCI_REGS_END;
@@ -621,7 +697,6 @@ static int dwc3_probe(struct platform_device *pdev)
 
 	dwc->regs	= regs;
 	dwc->regs_size	= resource_size(res);
-	dwc->dev	= dev;
 
 	dev->dma_mask	= dev->parent->dma_mask;
 	dev->dma_parms	= dev->parent->dma_parms;
@@ -670,41 +745,9 @@ static int dwc3_probe(struct platform_device *pdev)
 		goto err_usb3phy_power;
 	}
 
-	switch (dwc->dr_mode) {
-	case USB_DR_MODE_PERIPHERAL:
-		dwc3_set_mode(dwc, DWC3_GCTL_PRTCAP_DEVICE);
-		ret = dwc3_gadget_init(dwc);
-		if (ret) {
-			dev_err(dev, "failed to initialize gadget\n");
-			goto err2;
-		}
-		break;
-	case USB_DR_MODE_HOST:
-		dwc3_set_mode(dwc, DWC3_GCTL_PRTCAP_HOST);
-		ret = dwc3_host_init(dwc);
-		if (ret) {
-			dev_err(dev, "failed to initialize host\n");
-			goto err2;
-		}
-		break;
-	case USB_DR_MODE_OTG:
-		dwc3_set_mode(dwc, DWC3_GCTL_PRTCAP_OTG);
-		ret = dwc3_host_init(dwc);
-		if (ret) {
-			dev_err(dev, "failed to initialize host\n");
-			goto err2;
-		}
-
-		ret = dwc3_gadget_init(dwc);
-		if (ret) {
-			dev_err(dev, "failed to initialize gadget\n");
-			goto err2;
-		}
-		break;
-	default:
-		dev_err(dev, "Unsupported mode of operation %d\n", dwc->dr_mode);
+	ret = dwc3_core_init_mode(dwc);
+	if (ret)
 		goto err2;
-	}
 
 	ret = dwc3_debugfs_init(dwc);
 	if (ret) {
@@ -717,21 +760,7 @@ static int dwc3_probe(struct platform_device *pdev)
 	return 0;
 
 err3:
-	switch (dwc->dr_mode) {
-	case USB_DR_MODE_PERIPHERAL:
-		dwc3_gadget_exit(dwc);
-		break;
-	case USB_DR_MODE_HOST:
-		dwc3_host_exit(dwc);
-		break;
-	case USB_DR_MODE_OTG:
-		dwc3_host_exit(dwc);
-		dwc3_gadget_exit(dwc);
-		break;
-	default:
-		/* do nothing */
-		break;
-	}
+	dwc3_core_exit_mode(dwc);
 
 err2:
 	dwc3_event_buffers_cleanup(dwc);
@@ -766,23 +795,7 @@ static int dwc3_remove(struct platform_device *pdev)
 	pm_runtime_disable(&pdev->dev);
 
 	dwc3_debugfs_exit(dwc);
-
-	switch (dwc->dr_mode) {
-	case USB_DR_MODE_PERIPHERAL:
-		dwc3_gadget_exit(dwc);
-		break;
-	case USB_DR_MODE_HOST:
-		dwc3_host_exit(dwc);
-		break;
-	case USB_DR_MODE_OTG:
-		dwc3_host_exit(dwc);
-		dwc3_gadget_exit(dwc);
-		break;
-	default:
-		/* do nothing */
-		break;
-	}
-
+	dwc3_core_exit_mode(dwc);
 	dwc3_event_buffers_cleanup(dwc);
 	dwc3_free_event_buffers(dwc);
 	dwc3_core_exit(dwc);