Merge tag 'xceiv-for-v3.9' of git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb into usb-next

Felipe writes:
	usb: xceiv: patches for v3.9 merge window

	Two new PHY drivers coming here: one for Samsung,
	one for OMAP. Both architectures are adding USB3
	support to mainline kernel.

	The PHY layer now allows us to have mulitple PHYs
	of the same type, which is necessary for platforms
	which provide more than one USB peripheral port.

	There's also a few cleanups here: removal of __dev*
	annotations, conversion of a cast to to_delayed_work(),
	and mxs-phy learns about ->set_suspend.

1 files changed, 60 insertions, 21 deletions

diff --git a/drivers/usb/host/ehci-s5p.c b/drivers/usb/host/ehci-s5p.c
index f18e6ac081aa..20ebf6a8b7f4 100644
--- a/drivers/usb/host/ehci-s5p.c
+++ b/drivers/usb/host/ehci-s5p.c
@@ -17,6 +17,8 @@
 #include <linux/platform_device.h>
 #include <linux/of_gpio.h>
 #include <linux/platform_data/usb-ehci-s5p.h>
+#include <linux/usb/phy.h>
+#include <linux/usb/samsung_usb_phy.h>
 #include <plat/usb-phy.h>
 
 #define EHCI_INSNREG00(base)			(base + 0x90)
@@ -32,6 +34,9 @@ struct s5p_ehci_hcd {
 	struct device *dev;
 	struct usb_hcd *hcd;
 	struct clk *clk;
+	struct usb_phy *phy;
+	struct usb_otg *otg;
+	struct s5p_ehci_platdata *pdata;
 };
 
 static const struct hc_driver s5p_ehci_hc_driver = {
@@ -65,6 +70,26 @@ static const struct hc_driver s5p_ehci_hc_driver = {
 	.clear_tt_buffer_complete	= ehci_clear_tt_buffer_complete,
 };
 
+static void s5p_ehci_phy_enable(struct s5p_ehci_hcd *s5p_ehci)
+{
+	struct platform_device *pdev = to_platform_device(s5p_ehci->dev);
+
+	if (s5p_ehci->phy)
+		usb_phy_init(s5p_ehci->phy);
+	else if (s5p_ehci->pdata->phy_init)
+		s5p_ehci->pdata->phy_init(pdev, USB_PHY_TYPE_HOST);
+}
+
+static void s5p_ehci_phy_disable(struct s5p_ehci_hcd *s5p_ehci)
+{
+	struct platform_device *pdev = to_platform_device(s5p_ehci->dev);
+
+	if (s5p_ehci->phy)
+		usb_phy_shutdown(s5p_ehci->phy);
+	else if (s5p_ehci->pdata->phy_exit)
+		s5p_ehci->pdata->phy_exit(pdev, USB_PHY_TYPE_HOST);
+}
+
 static void s5p_setup_vbus_gpio(struct platform_device *pdev)
 {
 	int err;
@@ -87,20 +112,15 @@ static u64 ehci_s5p_dma_mask = DMA_BIT_MASK(32);
 
 static int s5p_ehci_probe(struct platform_device *pdev)
 {
-	struct s5p_ehci_platdata *pdata;
+	struct s5p_ehci_platdata *pdata = pdev->dev.platform_data;
 	struct s5p_ehci_hcd *s5p_ehci;
 	struct usb_hcd *hcd;
 	struct ehci_hcd *ehci;
 	struct resource *res;
+	struct usb_phy *phy;
 	int irq;
 	int err;
 
-	pdata = pdev->dev.platform_data;
-	if (!pdata) {
-		dev_err(&pdev->dev, "No platform data defined\n");
-		return -EINVAL;
-	}
-
 	/*
 	 * Right now device-tree probed devices don't get dma_mask set.
 	 * Since shared usb code relies on it, set it here for now.
@@ -118,6 +138,20 @@ static int s5p_ehci_probe(struct platform_device *pdev)
 	if (!s5p_ehci)
 		return -ENOMEM;
 
+	phy = devm_usb_get_phy(&pdev->dev, USB_PHY_TYPE_USB2);
+	if (IS_ERR_OR_NULL(phy)) {
+		/* Fallback to pdata */
+		if (!pdata) {
+			dev_warn(&pdev->dev, "no platform data or transceiver defined\n");
+			return -EPROBE_DEFER;
+		} else {
+			s5p_ehci->pdata = pdata;
+		}
+	} else {
+		s5p_ehci->phy = phy;
+		s5p_ehci->otg = phy->otg;
+	}
+
 	s5p_ehci->dev = &pdev->dev;
 
 	hcd = usb_create_hcd(&s5p_ehci_hc_driver, &pdev->dev,
@@ -163,8 +197,10 @@ static int s5p_ehci_probe(struct platform_device *pdev)
 		goto fail_io;
 	}
 
-	if (pdata->phy_init)
-		pdata->phy_init(pdev, S5P_USB_PHY_HOST);
+	if (s5p_ehci->otg)
+		s5p_ehci->otg->set_host(s5p_ehci->otg, &s5p_ehci->hcd->self);
+
+	s5p_ehci_phy_enable(s5p_ehci);
 
 	ehci = hcd_to_ehci(hcd);
 	ehci->caps = hcd->regs;
@@ -175,13 +211,15 @@ static int s5p_ehci_probe(struct platform_device *pdev)
 	err = usb_add_hcd(hcd, irq, IRQF_SHARED);
 	if (err) {
 		dev_err(&pdev->dev, "Failed to add USB HCD\n");
-		goto fail_io;
+		goto fail_add_hcd;
 	}
 
 	platform_set_drvdata(pdev, s5p_ehci);
 
 	return 0;
 
+fail_add_hcd:
+	s5p_ehci_phy_disable(s5p_ehci);
 fail_io:
 	clk_disable_unprepare(s5p_ehci->clk);
 fail_clk:
@@ -191,14 +229,15 @@ fail_clk:
 
 static int s5p_ehci_remove(struct platform_device *pdev)
 {
-	struct s5p_ehci_platdata *pdata = pdev->dev.platform_data;
 	struct s5p_ehci_hcd *s5p_ehci = platform_get_drvdata(pdev);
 	struct usb_hcd *hcd = s5p_ehci->hcd;
 
 	usb_remove_hcd(hcd);
 
-	if (pdata && pdata->phy_exit)
-		pdata->phy_exit(pdev, S5P_USB_PHY_HOST);
+	if (s5p_ehci->otg)
+		s5p_ehci->otg->set_host(s5p_ehci->otg, &s5p_ehci->hcd->self);
+
+	s5p_ehci_phy_disable(s5p_ehci);
 
 	clk_disable_unprepare(s5p_ehci->clk);
 
@@ -222,14 +261,14 @@ static int s5p_ehci_suspend(struct device *dev)
 	struct s5p_ehci_hcd *s5p_ehci = dev_get_drvdata(dev);
 	struct usb_hcd *hcd = s5p_ehci->hcd;
 	bool do_wakeup = device_may_wakeup(dev);
-	struct platform_device *pdev = to_platform_device(dev);
-	struct s5p_ehci_platdata *pdata = pdev->dev.platform_data;
 	int rc;
 
 	rc = ehci_suspend(hcd, do_wakeup);
 
-	if (pdata && pdata->phy_exit)
-		pdata->phy_exit(pdev, S5P_USB_PHY_HOST);
+	if (s5p_ehci->otg)
+		s5p_ehci->otg->set_host(s5p_ehci->otg, &s5p_ehci->hcd->self);
+
+	s5p_ehci_phy_disable(s5p_ehci);
 
 	clk_disable_unprepare(s5p_ehci->clk);
 
@@ -240,13 +279,13 @@ static int s5p_ehci_resume(struct device *dev)
 {
 	struct s5p_ehci_hcd *s5p_ehci = dev_get_drvdata(dev);
 	struct usb_hcd *hcd = s5p_ehci->hcd;
-	struct platform_device *pdev = to_platform_device(dev);
-	struct s5p_ehci_platdata *pdata = pdev->dev.platform_data;
 
 	clk_prepare_enable(s5p_ehci->clk);
 
-	if (pdata && pdata->phy_init)
-		pdata->phy_init(pdev, S5P_USB_PHY_HOST);
+	if (s5p_ehci->otg)
+		s5p_ehci->otg->set_host(s5p_ehci->otg, &s5p_ehci->hcd->self);
+
+	s5p_ehci_phy_enable(s5p_ehci);
 
 	/* DMA burst Enable */
 	writel(EHCI_INSNREG00_ENABLE_DMA_BURST, EHCI_INSNREG00(hcd->regs));