usb: start using the control module driver

Start using the control module driver for powering on the PHY and for
writing to the mailbox instead of writing to the control module
registers on their own.

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>

1 files changed, 8 insertions, 33 deletions

diff --git a/drivers/usb/phy/omap-usb2.c b/drivers/usb/phy/omap-usb2.c
index 26ae8f49225c..c2b4c8e6f3c6 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) {
@@ -166,16 +143,14 @@ static int omap_usb2_probe(struct platform_device *pdev)
 	phy->phy.set_suspend	= omap_usb2_suspend;
 	phy->phy.otg		= otg;
 
-	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;