X-Git-Url: http://pileus.org/git/?a=blobdiff_plain;f=drivers%2Fusb%2Fphy%2Fomap-usb2.c;h=844ab68f08d04d6600594fb74fc56a3225b079b2;hb=a7c1120d2dcc83691bafa034d98f70285757e826;hp=26ae8f49225c9b2803fe6624f1ec1bfa488d3018;hpb=c6699b58f4fe2f968f036a862c09ce44b6968376;p=~andy%2Flinux

diff --git a/drivers/usb/phy/omap-usb2.c b/drivers/usb/phy/omap-usb2.c
index 26ae8f49225..844ab68f08d 100644
--- a/drivers/usb/phy/omap-usb2.c
+++ b/drivers/usb/phy/omap-usb2.c
@@ -27,6 +27,7 @@
 #include <linux/err.h>
 #include <linux/pm_runtime.h>
 #include <linux/delay.h>
+#include <linux/usb/omap_control_usb.h>
 
 /**
  * omap_usb2_set_comparator - links the comparator present in the sytem with
@@ -52,29 +53,6 @@ int omap_usb2_set_comparator(struct phy_companion *comparator)
 }
 EXPORT_SYMBOL_GPL(omap_usb2_set_comparator);
 
-/**
- * omap_usb_phy_power - power on/off the phy using control module reg
- * @phy: struct omap_usb *
- * @on: 0 or 1, based on powering on or off the PHY
- *
- * XXX: Remove this function once control module driver gets merged
- */
-static void omap_usb_phy_power(struct omap_usb *phy, int on)
-{
-	u32 val;
-
-	if (on) {
-		val = readl(phy->control_dev);
-		if (val & PHY_PD) {
-			writel(~PHY_PD, phy->control_dev);
-			/* XXX: add proper documentation for this delay */
-			mdelay(200);
-		}
-	} else {
-		writel(PHY_PD, phy->control_dev);
-	}
-}
-
 static int omap_usb_set_vbus(struct usb_otg *otg, bool enabled)
 {
 	struct omap_usb *phy = phy_to_omapusb(otg->phy);
@@ -124,7 +102,7 @@ static int omap_usb2_suspend(struct usb_phy *x, int suspend)
 	struct omap_usb *phy = phy_to_omapusb(x);
 
 	if (suspend && !phy->is_suspended) {
-		omap_usb_phy_power(phy, 0);
+		omap_control_usb_phy_power(phy->control_dev, 0);
 		pm_runtime_put_sync(phy->dev);
 		phy->is_suspended = 1;
 	} else if (!suspend && phy->is_suspended) {
@@ -134,7 +112,7 @@ static int omap_usb2_suspend(struct usb_phy *x, int suspend)
 									ret);
 			return ret;
 		}
-		omap_usb_phy_power(phy, 1);
+		omap_control_usb_phy_power(phy->control_dev, 1);
 		phy->is_suspended = 0;
 	}
 
@@ -145,7 +123,6 @@ static int omap_usb2_probe(struct platform_device *pdev)
 {
 	struct omap_usb			*phy;
 	struct usb_otg			*otg;
-	struct resource			*res;
 
 	phy = devm_kzalloc(&pdev->dev, sizeof(*phy), GFP_KERNEL);
 	if (!phy) {
@@ -165,17 +142,16 @@ static int omap_usb2_probe(struct platform_device *pdev)
 	phy->phy.label		= "omap-usb2";
 	phy->phy.set_suspend	= omap_usb2_suspend;
 	phy->phy.otg		= otg;
+	phy->phy.type		= USB_PHY_TYPE_USB2;
 
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
-
-	phy->control_dev = devm_request_and_ioremap(&pdev->dev, res);
-	if (phy->control_dev == NULL) {
-		dev_err(&pdev->dev, "Failed to obtain io memory\n");
-		return -ENXIO;
+	phy->control_dev = omap_get_control_dev();
+	if (IS_ERR(phy->control_dev)) {
+		dev_dbg(&pdev->dev, "Failed to get control device\n");
+		return -ENODEV;
 	}
 
 	phy->is_suspended	= 1;
-	omap_usb_phy_power(phy, 0);
+	omap_control_usb_phy_power(phy->control_dev, 0);
 
 	otg->set_host		= omap_usb_set_host;
 	otg->set_peripheral	= omap_usb_set_peripheral;
@@ -190,7 +166,13 @@ static int omap_usb2_probe(struct platform_device *pdev)
 	}
 	clk_prepare(phy->wkupclk);
 
-	usb_add_phy(&phy->phy, USB_PHY_TYPE_USB2);
+	phy->optclk = devm_clk_get(phy->dev, "usb_otg_ss_refclk960m");
+	if (IS_ERR(phy->optclk))
+		dev_vdbg(&pdev->dev, "unable to get refclk960m\n");
+	else
+		clk_prepare(phy->optclk);
+
+	usb_add_phy_dev(&phy->phy);
 
 	platform_set_drvdata(pdev, phy);
 
@@ -204,6 +186,8 @@ static int omap_usb2_remove(struct platform_device *pdev)
 	struct omap_usb	*phy = platform_get_drvdata(pdev);
 
 	clk_unprepare(phy->wkupclk);
+	if (!IS_ERR(phy->optclk))
+		clk_unprepare(phy->optclk);
 	usb_remove_phy(&phy->phy);
 
 	return 0;
@@ -217,6 +201,8 @@ static int omap_usb2_runtime_suspend(struct device *dev)
 	struct omap_usb	*phy = platform_get_drvdata(pdev);
 
 	clk_disable(phy->wkupclk);
+	if (!IS_ERR(phy->optclk))
+		clk_disable(phy->optclk);
 
 	return 0;
 }
@@ -228,9 +214,25 @@ static int omap_usb2_runtime_resume(struct device *dev)
 	struct omap_usb	*phy = platform_get_drvdata(pdev);
 
 	ret = clk_enable(phy->wkupclk);
-	if (ret < 0)
+	if (ret < 0) {
 		dev_err(phy->dev, "Failed to enable wkupclk %d\n", ret);
+		goto err0;
+	}
+
+	if (!IS_ERR(phy->optclk)) {
+		ret = clk_enable(phy->optclk);
+		if (ret < 0) {
+			dev_err(phy->dev, "Failed to enable optclk %d\n", ret);
+			goto err1;
+		}
+	}
+
+	return 0;
+
+err1:
+	clk_disable(phy->wkupclk);
 
+err0:
 	return ret;
 }