usb: cdns3: Refactoring names in reusable code

Patch change the functions and objects names in reusable code.
The reusable code includes core.c, core.h, drd.c and drd.h files.
It also changes the names of all references to these functions and
objects in other cdns3 files. There are a lot of changes, but all
changes are very trivial.
The reason of this patch is to avoid of mixing prefix cdns3 and cdnsp in
in cdnsp driver what could introduce some confusion in understanding
of cdnsp driver.
This patch assumes to use three different prefixes in Cadence
USB drivers:
  cdns: for common reusable code
  cdnsp: for names related only with cdnsp driver
  cdns3: for names related only with cdns3 driver
Signed-off-by: Pawel Laszczak <pawell@cadence.com>
Tested-by: Aswath Govindraju <a-govindraju@ti.com>
Signed-off-by: Peter Chen <peter.chen@nxp.com>

drivers/usb/cdns3/cdns3-imx.c

@@ -250,7 +250,7 @@ static void cdns3_set_wakeup(struct cdns_imx *data, bool enable)
 static int cdns_imx_platform_suspend(struct device *dev,
 		bool suspend, bool wakeup)
 {
-	struct cdns3 *cdns = dev_get_drvdata(dev);
+	struct cdns *cdns = dev_get_drvdata(dev);
 	struct device *parent = dev->parent;
 	struct cdns_imx *data = dev_get_drvdata(parent);
 	void __iomem *otg_regs = (void __iomem *)(cdns->otg_regs);

drivers/usb/cdns3/cdns3-plat.c

@@ -20,7 +20,7 @@
 #include "core.h"
 #include "gadget-export.h"
 
-static int set_phy_power_on(struct cdns3 *cdns)
+static int set_phy_power_on(struct cdns *cdns)
 {
 	int ret;
 
@@ -35,7 +35,7 @@ static int set_phy_power_on(struct cdns3 *cdns)
 	return ret;
 }
 
-static void set_phy_power_off(struct cdns3 *cdns)
+static void set_phy_power_off(struct cdns *cdns)
 {
 	phy_power_off(cdns->usb3_phy);
 	phy_power_off(cdns->usb2_phy);
@@ -51,7 +51,7 @@ static int cdns3_plat_probe(struct platform_device *pdev)
 {
 	struct device *dev = &pdev->dev;
 	struct resource	*res;
-	struct cdns3 *cdns;
+	struct cdns *cdns;
 	void __iomem *regs;
 	int ret;
 
@@ -136,7 +136,8 @@ static int cdns3_plat_probe(struct platform_device *pdev)
 		goto err_phy_power_on;
 
 	cdns->gadget_init = cdns3_gadget_init;
-	ret = cdns3_init(cdns);
+
+	ret = cdns_init(cdns);
 	if (ret)
 		goto err_cdns_init;
 
@@ -175,13 +176,13 @@ static int cdns3_plat_probe(struct platform_device *pdev)
  */
 static int cdns3_plat_remove(struct platform_device *pdev)
 {
-	struct cdns3 *cdns = platform_get_drvdata(pdev);
+	struct cdns *cdns = platform_get_drvdata(pdev);
 	struct device *dev = cdns->dev;
 
 	pm_runtime_get_sync(dev);
 	pm_runtime_disable(dev);
 	pm_runtime_put_noidle(dev);
-	cdns3_remove(cdns);
+	cdns_remove(cdns);
 	set_phy_power_off(cdns);
 	phy_exit(cdns->usb2_phy);
 	phy_exit(cdns->usb3_phy);
@@ -193,7 +194,7 @@ static int cdns3_plat_remove(struct platform_device *pdev)
 static int cdns3_set_platform_suspend(struct device *dev,
 				      bool suspend, bool wakeup)
 {
-	struct cdns3 *cdns = dev_get_drvdata(dev);
+	struct cdns *cdns = dev_get_drvdata(dev);
 	int ret = 0;
 
 	if (cdns->pdata && cdns->pdata->platform_suspend)
@@ -204,7 +205,7 @@ static int cdns3_set_platform_suspend(struct device *dev,
 
 static int cdns3_controller_suspend(struct device *dev, pm_message_t msg)
 {
-	struct cdns3 *cdns = dev_get_drvdata(dev);
+	struct cdns *cdns = dev_get_drvdata(dev);
 	bool wakeup;
 	unsigned long flags;
 
@@ -228,7 +229,7 @@ static int cdns3_controller_suspend(struct device *dev, pm_message_t msg)
 
 static int cdns3_controller_resume(struct device *dev, pm_message_t msg)
 {
-	struct cdns3 *cdns = dev_get_drvdata(dev);
+	struct cdns *cdns = dev_get_drvdata(dev);
 	int ret;
 	unsigned long flags;
 
@@ -242,7 +243,7 @@ static int cdns3_controller_resume(struct device *dev, pm_message_t msg)
 	cdns3_set_platform_suspend(cdns->dev, false, false);
 
 	spin_lock_irqsave(&cdns->lock, flags);
-	cdns3_resume(cdns, !PMSG_IS_AUTO(msg));
+	cdns_resume(cdns, !PMSG_IS_AUTO(msg));
 	cdns->in_lpm = false;
 	spin_unlock_irqrestore(&cdns->lock, flags);
 	if (cdns->wakeup_pending) {
@@ -268,9 +269,9 @@ static int cdns3_plat_runtime_resume(struct device *dev)
 
 static int cdns3_plat_suspend(struct device *dev)
 {
-	struct cdns3 *cdns = dev_get_drvdata(dev);
+	struct cdns *cdns = dev_get_drvdata(dev);
 
-	cdns3_suspend(cdns);
+	cdns_suspend(cdns);
 
 	return cdns3_controller_suspend(dev, PMSG_SUSPEND);
 }

drivers/usb/cdns3/core.h

@@ -14,10 +14,10 @@
 #ifndef __LINUX_CDNS3_CORE_H
 #define __LINUX_CDNS3_CORE_H
 
-struct cdns3;
+struct cdns;
 
 /**
- * struct cdns3_role_driver - host/gadget role driver
+ * struct cdns_role_driver - host/gadget role driver
  * @start: start this role
  * @stop: stop this role
  * @suspend: suspend callback for this role
@@ -26,18 +26,18 @@ struct cdns3;
  * @name: role name string (host/gadget)
  * @state: current state
  */
-struct cdns3_role_driver {
-	int (*start)(struct cdns3 *cdns);
-	void (*stop)(struct cdns3 *cdns);
-	int (*suspend)(struct cdns3 *cdns, bool do_wakeup);
-	int (*resume)(struct cdns3 *cdns, bool hibernated);
+struct cdns_role_driver {
+	int (*start)(struct cdns *cdns);
+	void (*stop)(struct cdns *cdns);
+	int (*suspend)(struct cdns *cdns, bool do_wakeup);
+	int (*resume)(struct cdns *cdns, bool hibernated);
 	const char *name;
-#define CDNS3_ROLE_STATE_INACTIVE	0
-#define CDNS3_ROLE_STATE_ACTIVE		1
+#define CDNS_ROLE_STATE_INACTIVE	0
+#define CDNS_ROLE_STATE_ACTIVE		1
 	int state;
 };
 
-#define CDNS3_XHCI_RESOURCES_NUM	2
+#define CDNS_XHCI_RESOURCES_NUM	2
 
 struct cdns3_platform_data {
 	int (*platform_suspend)(struct device *dev,
@@ -47,7 +47,7 @@ struct cdns3_platform_data {
 };
 
 /**
- * struct cdns3 - Representation of Cadence USB3 DRD controller.
+ * struct cdns - Representation of Cadence USB3 DRD controller.
  * @dev: pointer to Cadence device struct
  * @xhci_regs: pointer to base of xhci registers
  * @xhci_res: the resource for xhci
@@ -63,7 +63,7 @@ struct cdns3_platform_data {
  * @wakeup_irq: irq number for wakeup event, it is optional
  * @roles: array of supported roles for this controller
  * @role: current role
- * @host_dev: the child host device pointer for cdns3 core
+ * @host_dev: the child host device pointer for cdns core
  * @gadget_dev: the child gadget device pointer for cdns3 core
  * @usb2_phy: pointer to USB2 PHY
  * @usb3_phy: pointer to USB3 PHY
@@ -80,18 +80,18 @@ struct cdns3_platform_data {
  * @xhci_plat_data: xhci private data structure pointer
  * @gadget_init: pointer to gadget initialization function
  */
-struct cdns3 {
+struct cdns {
 	struct device			*dev;
 	void __iomem			*xhci_regs;
-	struct resource			xhci_res[CDNS3_XHCI_RESOURCES_NUM];
+	struct resource			xhci_res[CDNS_XHCI_RESOURCES_NUM];
 	struct cdns3_usb_regs __iomem	*dev_regs;
 
 	struct resource			otg_res;
 	struct cdns3_otg_legacy_regs	*otg_v0_regs;
 	struct cdns3_otg_regs		*otg_v1_regs;
 	struct cdnsp_otg_regs		*otg_cdnsp_regs;
-	struct cdns3_otg_common_regs	*otg_regs;
-	struct cdns3_otg_irq_regs	*otg_irq_regs;
+	struct cdns_otg_common_regs	*otg_regs;
+	struct cdns_otg_irq_regs	*otg_irq_regs;
 #define CDNS3_CONTROLLER_V0	0
 #define CDNS3_CONTROLLER_V1	1
 #define CDNSP_CONTROLLER_V2	2
@@ -101,7 +101,7 @@ struct cdns3 {
 	int				otg_irq;
 	int				dev_irq;
 	int				wakeup_irq;
-	struct cdns3_role_driver	*roles[USB_ROLE_DEVICE + 1];
+	struct cdns_role_driver	*roles[USB_ROLE_DEVICE + 1];
 	enum usb_role			role;
 	struct platform_device		*host_dev;
 	struct cdns3_device		*gadget_dev;
@@ -117,15 +117,15 @@ struct cdns3 {
 	spinlock_t			lock;
 	struct xhci_plat_priv		*xhci_plat_data;
 
-	int (*gadget_init)(struct cdns3 *cdns);
+	int (*gadget_init)(struct cdns *cdns);
 };
 
-int cdns3_hw_role_switch(struct cdns3 *cdns);
-int cdns3_init(struct cdns3 *cdns);
-int cdns3_remove(struct cdns3 *cdns);
+int cdns_hw_role_switch(struct cdns *cdns);
+int cdns_init(struct cdns *cdns);
+int cdns_remove(struct cdns *cdns);
 
 #ifdef CONFIG_PM_SLEEP
-int cdns3_resume(struct cdns3 *cdns, u8 set_active);
-int cdns3_suspend(struct cdns3 *cdns);
+int cdns_resume(struct cdns *cdns, u8 set_active);
+int cdns_suspend(struct cdns *cdns);
 #endif /* CONFIG_PM_SLEEP */
 #endif /* __LINUX_CDNS3_CORE_H */

drivers/usb/cdns3/drd.c

@@ -19,13 +19,13 @@
 #include "core.h"
 
 /**
- * cdns3_set_mode - change mode of OTG Core
+ * cdns_set_mode - change mode of OTG Core
  * @cdns: pointer to context structure
  * @mode: selected mode from cdns_role
  *
  * Returns 0 on success otherwise negative errno
  */
-static int cdns3_set_mode(struct cdns3 *cdns, enum usb_dr_mode mode)
+static int cdns_set_mode(struct cdns *cdns, enum usb_dr_mode mode)
 {
 	u32 __iomem *override_reg;
 	u32 reg;
@@ -83,7 +83,7 @@ static int cdns3_set_mode(struct cdns3 *cdns, enum usb_dr_mode mode)
 	return 0;
 }
 
-int cdns3_get_id(struct cdns3 *cdns)
+int cdns_get_id(struct cdns *cdns)
 {
 	int id;
 
@@ -93,7 +93,7 @@ int cdns3_get_id(struct cdns3 *cdns)
 	return id;
 }
 
-int cdns3_get_vbus(struct cdns3 *cdns)
+int cdns_get_vbus(struct cdns *cdns)
 {
 	int vbus;
 
@@ -103,53 +103,53 @@ int cdns3_get_vbus(struct cdns3 *cdns)
 	return vbus;
 }
 
-bool cdns3_is_host(struct cdns3 *cdns)
+bool cdns_is_host(struct cdns *cdns)
 {
 	if (cdns->dr_mode == USB_DR_MODE_HOST)
 		return true;
-	else if (cdns3_get_id(cdns) == CDNS3_ID_HOST)
+	else if (cdns_get_id(cdns) == CDNS3_ID_HOST)
 		return true;
 
 	return false;
 }
 
-bool cdns3_is_device(struct cdns3 *cdns)
+bool cdns_is_device(struct cdns *cdns)
 {
 	if (cdns->dr_mode == USB_DR_MODE_PERIPHERAL)
 		return true;
 	else if (cdns->dr_mode == USB_DR_MODE_OTG)
-		if (cdns3_get_id(cdns) == CDNS3_ID_PERIPHERAL)
+		if (cdns_get_id(cdns) == CDNS3_ID_PERIPHERAL)
 			return true;
 
 	return false;
 }
 
 /**
- * cdns3_otg_disable_irq - Disable all OTG interrupts
+ * cdns_otg_disable_irq - Disable all OTG interrupts
  * @cdns: Pointer to controller context structure
  */
-static void cdns3_otg_disable_irq(struct cdns3 *cdns)
+static void cdns_otg_disable_irq(struct cdns *cdns)
 {
 	writel(0, &cdns->otg_irq_regs->ien);
 }
 
 /**
- * cdns3_otg_enable_irq - enable id and sess_valid interrupts
+ * cdns_otg_enable_irq - enable id and sess_valid interrupts
  * @cdns: Pointer to controller context structure
  */
-static void cdns3_otg_enable_irq(struct cdns3 *cdns)
+static void cdns_otg_enable_irq(struct cdns *cdns)
 {
 	writel(OTGIEN_ID_CHANGE_INT | OTGIEN_VBUSVALID_RISE_INT |
 	       OTGIEN_VBUSVALID_FALL_INT, &cdns->otg_irq_regs->ien);
 }
 
 /**
- * cdns3_drd_host_on - start host.
+ * cdns_drd_host_on - start host.
  * @cdns: Pointer to controller context structure.
  *
  * Returns 0 on success otherwise negative errno.
  */
-int cdns3_drd_host_on(struct cdns3 *cdns)
+int cdns_drd_host_on(struct cdns *cdns)
 {
 	u32 val, ready_bit;
 	int ret;
@@ -175,10 +175,10 @@ int cdns3_drd_host_on(struct cdns3 *cdns)
 }
 
 /**
- * cdns3_drd_host_off - stop host.
+ * cdns_drd_host_off - stop host.
  * @cdns: Pointer to controller context structure.
  */
-void cdns3_drd_host_off(struct cdns3 *cdns)
+void cdns_drd_host_off(struct cdns *cdns)
 {
 	u32 val;
 
@@ -194,12 +194,12 @@ void cdns3_drd_host_off(struct cdns3 *cdns)
 }
 
 /**
- * cdns3_drd_gadget_on - start gadget.
+ * cdns_drd_gadget_on - start gadget.
  * @cdns: Pointer to controller context structure.
  *
  * Returns 0 on success otherwise negative errno
  */
-int cdns3_drd_gadget_on(struct cdns3 *cdns)
+int cdns_drd_gadget_on(struct cdns *cdns)
 {
 	u32 reg = OTGCMD_OTG_DIS;
 	u32 ready_bit;
@@ -225,13 +225,13 @@ int cdns3_drd_gadget_on(struct cdns3 *cdns)
 	phy_set_mode(cdns->usb3_phy, PHY_MODE_USB_DEVICE);
 	return 0;
 }
-EXPORT_SYMBOL_GPL(cdns3_drd_gadget_on);
+EXPORT_SYMBOL_GPL(cdns_drd_gadget_on);
 
 /**
- * cdns3_drd_gadget_off - stop gadget.
+ * cdns_drd_gadget_off - stop gadget.
  * @cdns: Pointer to controller context structure.
  */
-void cdns3_drd_gadget_off(struct cdns3 *cdns)
+void cdns_drd_gadget_off(struct cdns *cdns)
 {
 	u32 val;
 
@@ -249,50 +249,50 @@ void cdns3_drd_gadget_off(struct cdns3 *cdns)
 				  1, 2000000);
 	phy_set_mode(cdns->usb3_phy, PHY_MODE_INVALID);
 }
-EXPORT_SYMBOL_GPL(cdns3_drd_gadget_off);
+EXPORT_SYMBOL_GPL(cdns_drd_gadget_off);
 
 /**
- * cdns3_init_otg_mode - initialize drd controller
+ * cdns_init_otg_mode - initialize drd controller
  * @cdns: Pointer to controller context structure
  *
  * Returns 0 on success otherwise negative errno
  */
-static int cdns3_init_otg_mode(struct cdns3 *cdns)
+static int cdns_init_otg_mode(struct cdns *cdns)
 {
 	int ret;
 
-	cdns3_otg_disable_irq(cdns);
+	cdns_otg_disable_irq(cdns);
 	/* clear all interrupts */
 	writel(~0, &cdns->otg_irq_regs->ivect);
 
-	ret = cdns3_set_mode(cdns, USB_DR_MODE_OTG);
+	ret = cdns_set_mode(cdns, USB_DR_MODE_OTG);
 	if (ret)
 		return ret;
 
-	cdns3_otg_enable_irq(cdns);
+	cdns_otg_enable_irq(cdns);
 
 	return 0;
 }
 
 /**
- * cdns3_drd_update_mode - initialize mode of operation
+ * cdns_drd_update_mode - initialize mode of operation
  * @cdns: Pointer to controller context structure
  *
  * Returns 0 on success otherwise negative errno
  */
-int cdns3_drd_update_mode(struct cdns3 *cdns)
+int cdns_drd_update_mode(struct cdns *cdns)
 {
 	int ret;
 
 	switch (cdns->dr_mode) {
 	case USB_DR_MODE_PERIPHERAL:
-		ret = cdns3_set_mode(cdns, USB_DR_MODE_PERIPHERAL);
+		ret = cdns_set_mode(cdns, USB_DR_MODE_PERIPHERAL);
 		break;
 	case USB_DR_MODE_HOST:
-		ret = cdns3_set_mode(cdns, USB_DR_MODE_HOST);
+		ret = cdns_set_mode(cdns, USB_DR_MODE_HOST);
 		break;
 	case USB_DR_MODE_OTG:
-		ret = cdns3_init_otg_mode(cdns);
+		ret = cdns_init_otg_mode(cdns);
 		break;
 	default:
 		dev_err(cdns->dev, "Unsupported mode of operation %d\n",
@@ -303,27 +303,27 @@ int cdns3_drd_update_mode(struct cdns3 *cdns)
 	return ret;
 }
 
-static irqreturn_t cdns3_drd_thread_irq(int irq, void *data)
+static irqreturn_t cdns_drd_thread_irq(int irq, void *data)
 {
-	struct cdns3 *cdns = data;
+	struct cdns *cdns = data;
 
-	cdns3_hw_role_switch(cdns);
+	cdns_hw_role_switch(cdns);
 
 	return IRQ_HANDLED;
 }
 
 /**
- * cdns3_drd_irq - interrupt handler for OTG events
+ * cdns_drd_irq - interrupt handler for OTG events
  *
- * @irq: irq number for cdns3 core device
- * @data: structure of cdns3
+ * @irq: irq number for cdns core device
+ * @data: structure of cdns
  *
  * Returns IRQ_HANDLED or IRQ_NONE
  */
-static irqreturn_t cdns3_drd_irq(int irq, void *data)
+static irqreturn_t cdns_drd_irq(int irq, void *data)
 {
 	irqreturn_t ret = IRQ_NONE;
-	struct cdns3 *cdns = data;
+	struct cdns *cdns = data;
 	u32 reg;
 
 	if (cdns->dr_mode != USB_DR_MODE_OTG)
@@ -339,14 +339,14 @@ static irqreturn_t cdns3_drd_irq(int irq, void *data)
 
 	if (reg & OTGIEN_ID_CHANGE_INT) {
 		dev_dbg(cdns->dev, "OTG IRQ: new ID: %d\n",
-			cdns3_get_id(cdns));
+			cdns_get_id(cdns));
 
 		ret = IRQ_WAKE_THREAD;
 	}
 
 	if (reg & (OTGIEN_VBUSVALID_RISE_INT | OTGIEN_VBUSVALID_FALL_INT)) {
 		dev_dbg(cdns->dev, "OTG IRQ: new VBUS: %d\n",
-			cdns3_get_vbus(cdns));
+			cdns_get_vbus(cdns));
 
 		ret = IRQ_WAKE_THREAD;
 	}
@@ -355,7 +355,7 @@ static irqreturn_t cdns3_drd_irq(int irq, void *data)
 	return ret;
 }
 
-int cdns3_drd_init(struct cdns3 *cdns)
+int cdns_drd_init(struct cdns *cdns)
 {
 	void __iomem *regs;
 	u32 state;
@@ -380,7 +380,7 @@ int cdns3_drd_init(struct cdns3 *cdns)
 		cdns->otg_v1_regs = NULL;
 		cdns->otg_cdnsp_regs = NULL;
 		cdns->otg_regs = regs;
-		cdns->otg_irq_regs = (struct cdns3_otg_irq_regs *)
+		cdns->otg_irq_regs = (struct cdns_otg_irq_regs *)
 				     &cdns->otg_v0_regs->ien;
 		writel(1, &cdns->otg_v0_regs->simulate);
 		dev_dbg(cdns->dev, "DRD version v0 (%08x)\n",
@@ -393,11 +393,11 @@ int cdns3_drd_init(struct cdns3 *cdns)
 		cdns->otg_regs = (void *)&cdns->otg_v1_regs->cmd;
 
 		if (cdns->otg_cdnsp_regs->did == OTG_CDNSP_DID) {
-			cdns->otg_irq_regs = (struct cdns3_otg_irq_regs *)
+			cdns->otg_irq_regs = (struct cdns_otg_irq_regs *)
 					      &cdns->otg_cdnsp_regs->ien;
 			cdns->version  = CDNSP_CONTROLLER_V2;
 		} else {
-			cdns->otg_irq_regs = (struct cdns3_otg_irq_regs *)
+			cdns->otg_irq_regs = (struct cdns_otg_irq_regs *)
 					      &cdns->otg_v1_regs->ien;
 			writel(1, &cdns->otg_v1_regs->simulate);
 			cdns->version  = CDNS3_CONTROLLER_V1;
@@ -428,8 +428,8 @@ int cdns3_drd_init(struct cdns3 *cdns)
 	}
 
 	ret = devm_request_threaded_irq(cdns->dev, cdns->otg_irq,
-					cdns3_drd_irq,
-					cdns3_drd_thread_irq,
+					cdns_drd_irq,
+					cdns_drd_thread_irq,
 					IRQF_SHARED,
 					dev_name(cdns->dev), cdns);
 	if (ret) {
@@ -446,8 +446,8 @@ int cdns3_drd_init(struct cdns3 *cdns)
 	return 0;
 }
 
-int cdns3_drd_exit(struct cdns3 *cdns)
+int cdns_drd_exit(struct cdns *cdns)
 {
-	cdns3_otg_disable_irq(cdns);
+	cdns_otg_disable_irq(cdns);
 	return 0;
 }

drivers/usb/cdns3/drd.h

@@ -84,7 +84,7 @@ struct cdnsp_otg_regs {
 /*
  * Common registers interface for both CDNS3 and CDNSP version of DRD.
  */
-struct cdns3_otg_common_regs {
+struct cdns_otg_common_regs {
 	__le32 cmd;
 	__le32 sts;
 	__le32 state;
@@ -94,7 +94,7 @@ struct cdns3_otg_common_regs {
  * Interrupt related registers. This registers are mapped in different
  * location for CDNSP controller.
  */
-struct cdns3_otg_irq_regs {
+struct cdns_otg_irq_regs {
 	__le32 ien;
 	__le32 ivect;
 };
@@ -202,16 +202,16 @@ struct cdns3_otg_irq_regs {
 #define CDNS3_ID_PERIPHERAL		1
 #define CDNS3_ID_HOST			0
 
-bool cdns3_is_host(struct cdns3 *cdns);
-bool cdns3_is_device(struct cdns3 *cdns);
-int cdns3_get_id(struct cdns3 *cdns);
-int cdns3_get_vbus(struct cdns3 *cdns);
-int cdns3_drd_init(struct cdns3 *cdns);
-int cdns3_drd_exit(struct cdns3 *cdns);
-int cdns3_drd_update_mode(struct cdns3 *cdns);
-int cdns3_drd_gadget_on(struct cdns3 *cdns);
-void cdns3_drd_gadget_off(struct cdns3 *cdns);
-int cdns3_drd_host_on(struct cdns3 *cdns);
-void cdns3_drd_host_off(struct cdns3 *cdns);
+bool cdns_is_host(struct cdns *cdns);
+bool cdns_is_device(struct cdns *cdns);
+int cdns_get_id(struct cdns *cdns);
+int cdns_get_vbus(struct cdns *cdns);
+int cdns_drd_init(struct cdns *cdns);
+int cdns_drd_exit(struct cdns *cdns);
+int cdns_drd_update_mode(struct cdns *cdns);
+int cdns_drd_gadget_on(struct cdns *cdns);
+void cdns_drd_gadget_off(struct cdns *cdns);
+int cdns_drd_host_on(struct cdns *cdns);
+void cdns_drd_host_off(struct cdns *cdns);
 
 #endif /* __LINUX_CDNS3_DRD */

drivers/usb/cdns3/gadget-export.h

@@ -12,10 +12,10 @@
 
 #ifdef CONFIG_USB_CDNS3_GADGET
 
-int cdns3_gadget_init(struct cdns3 *cdns);
+int cdns3_gadget_init(struct cdns *cdns);
 #else
 
-static inline int cdns3_gadget_init(struct cdns3 *cdns)
+static inline int cdns3_gadget_init(struct cdns *cdns)
 {
 	return -ENXIO;
 }

drivers/usb/cdns3/gadget.c

@@ -1844,7 +1844,7 @@ __must_hold(&priv_dev->lock)
 static irqreturn_t cdns3_device_irq_handler(int irq, void *data)
 {
 	struct cdns3_device *priv_dev = data;
-	struct cdns3 *cdns = dev_get_drvdata(priv_dev->dev);
+	struct cdns *cdns = dev_get_drvdata(priv_dev->dev);
 	irqreturn_t ret = IRQ_NONE;
 	u32 reg;
 
@@ -3084,7 +3084,7 @@ static void cdns3_gadget_release(struct device *dev)
 	kfree(priv_dev);
 }
 
-static void cdns3_gadget_exit(struct cdns3 *cdns)
+static void cdns3_gadget_exit(struct cdns *cdns)
 {
 	struct cdns3_device *priv_dev;
 
@@ -3117,10 +3117,10 @@ static void cdns3_gadget_exit(struct cdns3 *cdns)
 	kfree(priv_dev->zlp_buf);
 	usb_put_gadget(&priv_dev->gadget);
 	cdns->gadget_dev = NULL;
-	cdns3_drd_gadget_off(cdns);
+	cdns_drd_gadget_off(cdns);
 }
 
-static int cdns3_gadget_start(struct cdns3 *cdns)
+static int cdns3_gadget_start(struct cdns *cdns)
 {
 	struct cdns3_device *priv_dev;
 	u32 max_speed;
@@ -3240,7 +3240,7 @@ static int cdns3_gadget_start(struct cdns3 *cdns)
 	return ret;
 }
 
-static int __cdns3_gadget_init(struct cdns3 *cdns)
+static int __cdns3_gadget_init(struct cdns *cdns)
 {
 	int ret = 0;
 
@@ -3251,7 +3251,7 @@ static int __cdns3_gadget_init(struct cdns3 *cdns)
 		return ret;
 	}
 
-	cdns3_drd_gadget_on(cdns);
+	cdns_drd_gadget_on(cdns);
 	pm_runtime_get_sync(cdns->dev);
 
 	ret = cdns3_gadget_start(cdns);
@@ -3277,7 +3277,7 @@ static int __cdns3_gadget_init(struct cdns3 *cdns)
 	return ret;
 }
 
-static int cdns3_gadget_suspend(struct cdns3 *cdns, bool do_wakeup)
+static int cdns3_gadget_suspend(struct cdns *cdns, bool do_wakeup)
 __must_hold(&cdns->lock)
 {
 	struct cdns3_device *priv_dev = cdns->gadget_dev;
@@ -3296,7 +3296,7 @@ __must_hold(&cdns->lock)
 	return 0;
 }
 
-static int cdns3_gadget_resume(struct cdns3 *cdns, bool hibernated)
+static int cdns3_gadget_resume(struct cdns *cdns, bool hibernated)
 {
 	struct cdns3_device *priv_dev = cdns->gadget_dev;
 
@@ -3311,13 +3311,13 @@ static int cdns3_gadget_resume(struct cdns3 *cdns, bool hibernated)
 /**
  * cdns3_gadget_init - initialize device structure
  *
- * @cdns: cdns3 instance
+ * @cdns: cdns instance
  *
  * This function initializes the gadget.
  */
-int cdns3_gadget_init(struct cdns3 *cdns)
+int cdns3_gadget_init(struct cdns *cdns)
 {
-	struct cdns3_role_driver *rdrv;
+	struct cdns_role_driver *rdrv;
 
 	rdrv = devm_kzalloc(cdns->dev, sizeof(*rdrv), GFP_KERNEL);
 	if (!rdrv)
@@ -3327,7 +3327,7 @@ int cdns3_gadget_init(struct cdns3 *cdns)
 	rdrv->stop	= cdns3_gadget_exit;
 	rdrv->suspend	= cdns3_gadget_suspend;
 	rdrv->resume	= cdns3_gadget_resume;
-	rdrv->state	= CDNS3_ROLE_STATE_INACTIVE;
+	rdrv->state	= CDNS_ROLE_STATE_INACTIVE;
 	rdrv->name	= "gadget";
 	cdns->roles[USB_ROLE_DEVICE] = rdrv;
 

drivers/usb/cdns3/host-export.h

@@ -12,17 +12,17 @@
 struct usb_hcd;
 #ifdef CONFIG_USB_CDNS3_HOST
 
-int cdns3_host_init(struct cdns3 *cdns);
+int cdns_host_init(struct cdns *cdns);
 int xhci_cdns3_suspend_quirk(struct usb_hcd *hcd);
 
 #else
 
-static inline int cdns3_host_init(struct cdns3 *cdns)
+static inline int cdns_host_init(struct cdns *cdns)
 {
 	return -ENXIO;
 }
 
-static inline void cdns3_host_exit(struct cdns3 *cdns) { }
+static inline void cdns_host_exit(struct cdns *cdns) { }
 static inline int xhci_cdns3_suspend_quirk(struct usb_hcd *hcd)
 {
 	return 0;

drivers/usb/cdns3/host.c

 // SPDX-License-Identifier: GPL-2.0
 /*
- * Cadence USBSS DRD Driver - host side
+ * Cadence USBSS and USBSSP DRD Driver - host side
  *
  * Copyright (C) 2018-2019 Cadence Design Systems.
  * Copyright (C) 2017-2018 NXP
@@ -28,13 +28,13 @@ static const struct xhci_plat_priv xhci_plat_cdns3_xhci = {
 	.suspend_quirk = xhci_cdns3_suspend_quirk,
 };
 
-static int __cdns3_host_init(struct cdns3 *cdns)
+static int __cdns_host_init(struct cdns *cdns)
 {
 	struct platform_device *xhci;
 	int ret;
 	struct usb_hcd *hcd;
 
-	cdns3_drd_host_on(cdns);
+	cdns_drd_host_on(cdns);
 
 	xhci = platform_device_alloc("xhci-hcd", PLATFORM_DEVID_AUTO);
 	if (!xhci) {
@@ -46,7 +46,7 @@ static int __cdns3_host_init(struct cdns3 *cdns)
 	cdns->host_dev = xhci;
 
 	ret = platform_device_add_resources(xhci, cdns->xhci_res,
-					    CDNS3_XHCI_RESOURCES_NUM);
+					    CDNS_XHCI_RESOURCES_NUM);
 	if (ret) {
 		dev_err(cdns->dev, "couldn't add resources to xHCI device\n");
 		goto err1;
@@ -113,25 +113,25 @@ int xhci_cdns3_suspend_quirk(struct usb_hcd *hcd)
 	return 0;
 }
 
-static void cdns3_host_exit(struct cdns3 *cdns)
+static void cdns_host_exit(struct cdns *cdns)
 {
 	kfree(cdns->xhci_plat_data);
 	platform_device_unregister(cdns->host_dev);
 	cdns->host_dev = NULL;
-	cdns3_drd_host_off(cdns);
+	cdns_drd_host_off(cdns);
 }
 
-int cdns3_host_init(struct cdns3 *cdns)
+int cdns_host_init(struct cdns *cdns)
 {
-	struct cdns3_role_driver *rdrv;
+	struct cdns_role_driver *rdrv;
 
 	rdrv = devm_kzalloc(cdns->dev, sizeof(*rdrv), GFP_KERNEL);
 	if (!rdrv)
 		return -ENOMEM;
 
-	rdrv->start	= __cdns3_host_init;
-	rdrv->stop	= cdns3_host_exit;
-	rdrv->state	= CDNS3_ROLE_STATE_INACTIVE;
+	rdrv->start	= __cdns_host_init;
+	rdrv->stop	= cdns_host_exit;
+	rdrv->state	= CDNS_ROLE_STATE_INACTIVE;
 	rdrv->name	= "host";
 
 	cdns->roles[USB_ROLE_HOST] = rdrv;