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>

1 files changed, 71 insertions, 71 deletions

diff --git a/drivers/usb/cdns3/core.c b/drivers/usb/cdns3/core.c
index 81ea035c0e11..85c491f4c6d5 100644
--- a/drivers/usb/cdns3/core.c
+++ b/drivers/usb/cdns3/core.c
@@ -23,9 +23,9 @@
 #include "host-export.h"
 #include "drd.h"
 
-static int cdns3_idle_init(struct cdns3 *cdns);
+static int cdns_idle_init(struct cdns *cdns);
 
-static int cdns3_role_start(struct cdns3 *cdns, enum usb_role role)
+static int cdns_role_start(struct cdns *cdns, enum usb_role role)
 {
 	int ret;
 
@@ -39,47 +39,47 @@ static int cdns3_role_start(struct cdns3 *cdns, enum usb_role role)
 	if (!cdns->roles[role])
 		return -ENXIO;
 
-	if (cdns->roles[role]->state == CDNS3_ROLE_STATE_ACTIVE)
+	if (cdns->roles[role]->state == CDNS_ROLE_STATE_ACTIVE)
 		return 0;
 
 	mutex_lock(&cdns->mutex);
 	ret = cdns->roles[role]->start(cdns);
 	if (!ret)
-		cdns->roles[role]->state = CDNS3_ROLE_STATE_ACTIVE;
+		cdns->roles[role]->state = CDNS_ROLE_STATE_ACTIVE;
 	mutex_unlock(&cdns->mutex);
 
 	return ret;
 }
 
-static void cdns3_role_stop(struct cdns3 *cdns)
+static void cdns_role_stop(struct cdns *cdns)
 {
 	enum usb_role role = cdns->role;
 
 	if (WARN_ON(role > USB_ROLE_DEVICE))
 		return;
 
-	if (cdns->roles[role]->state == CDNS3_ROLE_STATE_INACTIVE)
+	if (cdns->roles[role]->state == CDNS_ROLE_STATE_INACTIVE)
 		return;
 
 	mutex_lock(&cdns->mutex);
 	cdns->roles[role]->stop(cdns);
-	cdns->roles[role]->state = CDNS3_ROLE_STATE_INACTIVE;
+	cdns->roles[role]->state = CDNS_ROLE_STATE_INACTIVE;
 	mutex_unlock(&cdns->mutex);
 }
 
-static void cdns3_exit_roles(struct cdns3 *cdns)
+static void cdns_exit_roles(struct cdns *cdns)
 {
-	cdns3_role_stop(cdns);
-	cdns3_drd_exit(cdns);
+	cdns_role_stop(cdns);
+	cdns_drd_exit(cdns);
 }
 
 /**
- * cdns3_core_init_role - initialize role of operation
- * @cdns: Pointer to cdns3 structure
+ * cdns_core_init_role - initialize role of operation
+ * @cdns: Pointer to cdns structure
  *
  * Returns 0 on success otherwise negative errno
  */
-static int cdns3_core_init_role(struct cdns3 *cdns)
+static int cdns_core_init_role(struct cdns *cdns)
 {
 	struct device *dev = cdns->dev;
 	enum usb_dr_mode best_dr_mode;
@@ -120,7 +120,7 @@ static int cdns3_core_init_role(struct cdns3 *cdns)
 	 */
 	best_dr_mode = cdns->dr_mode;
 
-	ret = cdns3_idle_init(cdns);
+	ret = cdns_idle_init(cdns);
 	if (ret)
 		return ret;
 
@@ -136,7 +136,7 @@ static int cdns3_core_init_role(struct cdns3 *cdns)
 	dr_mode = best_dr_mode;
 
 	if (dr_mode == USB_DR_MODE_OTG || dr_mode == USB_DR_MODE_HOST) {
-		ret = cdns3_host_init(cdns);
+		ret = cdns_host_init(cdns);
 		if (ret) {
 			dev_err(dev, "Host initialization failed with %d\n",
 				ret);
@@ -159,28 +159,28 @@ static int cdns3_core_init_role(struct cdns3 *cdns)
 
 	cdns->dr_mode = dr_mode;
 
-	ret = cdns3_drd_update_mode(cdns);
+	ret = cdns_drd_update_mode(cdns);
 	if (ret)
 		goto err;
 
 	/* Initialize idle role to start with */
-	ret = cdns3_role_start(cdns, USB_ROLE_NONE);
+	ret = cdns_role_start(cdns, USB_ROLE_NONE);
 	if (ret)
 		goto err;
 
 	switch (cdns->dr_mode) {
 	case USB_DR_MODE_OTG:
-		ret = cdns3_hw_role_switch(cdns);
+		ret = cdns_hw_role_switch(cdns);
 		if (ret)
 			goto err;
 		break;
 	case USB_DR_MODE_PERIPHERAL:
-		ret = cdns3_role_start(cdns, USB_ROLE_DEVICE);
+		ret = cdns_role_start(cdns, USB_ROLE_DEVICE);
 		if (ret)
 			goto err;
 		break;
 	case USB_DR_MODE_HOST:
-		ret = cdns3_role_start(cdns, USB_ROLE_HOST);
+		ret = cdns_role_start(cdns, USB_ROLE_HOST);
 		if (ret)
 			goto err;
 		break;
@@ -191,32 +191,32 @@ static int cdns3_core_init_role(struct cdns3 *cdns)
 
 	return 0;
 err:
-	cdns3_exit_roles(cdns);
+	cdns_exit_roles(cdns);
 	return ret;
 }
 
 /**
- * cdns3_hw_role_state_machine  - role switch state machine based on hw events.
+ * cdns_hw_role_state_machine  - role switch state machine based on hw events.
  * @cdns: Pointer to controller structure.
  *
  * Returns next role to be entered based on hw events.
  */
-static enum usb_role cdns3_hw_role_state_machine(struct cdns3 *cdns)
+static enum usb_role cdns_hw_role_state_machine(struct cdns *cdns)
 {
 	enum usb_role role = USB_ROLE_NONE;
 	int id, vbus;
 
 	if (cdns->dr_mode != USB_DR_MODE_OTG) {
-		if (cdns3_is_host(cdns))
+		if (cdns_is_host(cdns))
 			role = USB_ROLE_HOST;
-		if (cdns3_is_device(cdns))
+		if (cdns_is_device(cdns))
 			role = USB_ROLE_DEVICE;
 
 		return role;
 	}
 
-	id = cdns3_get_id(cdns);
-	vbus = cdns3_get_vbus(cdns);
+	id = cdns_get_id(cdns);
+	vbus = cdns_get_vbus(cdns);
 
 	/*
 	 * Role change state machine
@@ -252,28 +252,28 @@ static enum usb_role cdns3_hw_role_state_machine(struct cdns3 *cdns)
 	return role;
 }
 
-static int cdns3_idle_role_start(struct cdns3 *cdns)
+static int cdns_idle_role_start(struct cdns *cdns)
 {
 	return 0;
 }
 
-static void cdns3_idle_role_stop(struct cdns3 *cdns)
+static void cdns_idle_role_stop(struct cdns *cdns)
 {
 	/* Program Lane swap and bring PHY out of RESET */
 	phy_reset(cdns->usb3_phy);
 }
 
-static int cdns3_idle_init(struct cdns3 *cdns)
+static int cdns_idle_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_idle_role_start;
-	rdrv->stop = cdns3_idle_role_stop;
-	rdrv->state = CDNS3_ROLE_STATE_INACTIVE;
+	rdrv->start = cdns_idle_role_start;
+	rdrv->stop = cdns_idle_role_stop;
+	rdrv->state = CDNS_ROLE_STATE_INACTIVE;
 	rdrv->suspend = NULL;
 	rdrv->resume = NULL;
 	rdrv->name = "idle";
@@ -284,10 +284,10 @@ static int cdns3_idle_init(struct cdns3 *cdns)
 }
 
 /**
- * cdns3_hw_role_switch - switch roles based on HW state
+ * cdns_hw_role_switch - switch roles based on HW state
  * @cdns: controller
  */
-int cdns3_hw_role_switch(struct cdns3 *cdns)
+int cdns_hw_role_switch(struct cdns *cdns)
 {
 	enum usb_role real_role, current_role;
 	int ret = 0;
@@ -299,22 +299,22 @@ int cdns3_hw_role_switch(struct cdns3 *cdns)
 	pm_runtime_get_sync(cdns->dev);
 
 	current_role = cdns->role;
-	real_role = cdns3_hw_role_state_machine(cdns);
+	real_role = cdns_hw_role_state_machine(cdns);
 
 	/* Do nothing if nothing changed */
 	if (current_role == real_role)
 		goto exit;
 
-	cdns3_role_stop(cdns);
+	cdns_role_stop(cdns);
 
 	dev_dbg(cdns->dev, "Switching role %d -> %d", current_role, real_role);
 
-	ret = cdns3_role_start(cdns, real_role);
+	ret = cdns_role_start(cdns, real_role);
 	if (ret) {
 		/* Back to current role */
 		dev_err(cdns->dev, "set %d has failed, back to %d\n",
 			real_role, current_role);
-		ret = cdns3_role_start(cdns, current_role);
+		ret = cdns_role_start(cdns, current_role);
 		if (ret)
 			dev_err(cdns->dev, "back to %d failed too\n",
 				current_role);
@@ -331,15 +331,15 @@ exit:
  *
  * Returns role
  */
-static enum usb_role cdns3_role_get(struct usb_role_switch *sw)
+static enum usb_role cdns_role_get(struct usb_role_switch *sw)
 {
-	struct cdns3 *cdns = usb_role_switch_get_drvdata(sw);
+	struct cdns *cdns = usb_role_switch_get_drvdata(sw);
 
 	return cdns->role;
 }
 
 /**
- * cdns3_role_set - set current role of controller.
+ * cdns_role_set - set current role of controller.
  *
  * @sw: pointer to USB role switch structure
  * @role: the previous role
@@ -347,9 +347,9 @@ static enum usb_role cdns3_role_get(struct usb_role_switch *sw)
  * - Role switch for dual-role devices
  * - USB_ROLE_GADGET <--> USB_ROLE_NONE for peripheral-only devices
  */
-static int cdns3_role_set(struct usb_role_switch *sw, enum usb_role role)
+static int cdns_role_set(struct usb_role_switch *sw, enum usb_role role)
 {
-	struct cdns3 *cdns = usb_role_switch_get_drvdata(sw);
+	struct cdns *cdns = usb_role_switch_get_drvdata(sw);
 	int ret = 0;
 
 	pm_runtime_get_sync(cdns->dev);
@@ -377,8 +377,8 @@ static int cdns3_role_set(struct usb_role_switch *sw, enum usb_role role)
 		}
 	}
 
-	cdns3_role_stop(cdns);
-	ret = cdns3_role_start(cdns, role);
+	cdns_role_stop(cdns);
+	ret = cdns_role_start(cdns, role);
 	if (ret)
 		dev_err(cdns->dev, "set role %d has failed\n", role);
 
@@ -389,15 +389,15 @@ pm_put:
 
 
 /**
- * cdns3_wakeup_irq - interrupt handler for wakeup events
- * @irq: irq number for cdns3 core device
- * @data: structure of cdns3
+ * cdns_wakeup_irq - interrupt handler for wakeup events
+ * @irq: irq number for cdns3/cdnsp core device
+ * @data: structure of cdns
  *
  * Returns IRQ_HANDLED or IRQ_NONE
  */
-static irqreturn_t cdns3_wakeup_irq(int irq, void *data)
+static irqreturn_t cdns_wakeup_irq(int irq, void *data)
 {
-	struct cdns3 *cdns = data;
+	struct cdns *cdns = data;
 
 	if (cdns->in_lpm) {
 		disable_irq_nosync(irq);
@@ -412,12 +412,12 @@ static irqreturn_t cdns3_wakeup_irq(int irq, void *data)
 }
 
 /**
- * cdns3_probe - probe for cdns3 core device
- * @cdns: Pointer to cdnsp structure.
+ * cdns_probe - probe for cdns3/cdnsp core device
+ * @cdns: Pointer to cdns structure.
  *
  * Returns 0 on success otherwise negative errno
  */
-int cdns3_init(struct cdns3 *cdns)
+int cdns_init(struct cdns *cdns)
 {
 	struct device *dev = cdns->dev;
 	int ret;
@@ -433,8 +433,8 @@ int cdns3_init(struct cdns3 *cdns)
 	if (device_property_read_bool(dev, "usb-role-switch")) {
 		struct usb_role_switch_desc sw_desc = { };
 
-		sw_desc.set = cdns3_role_set;
-		sw_desc.get = cdns3_role_get;
+		sw_desc.set = cdns_role_set;
+		sw_desc.get = cdns_role_get;
 		sw_desc.allow_userspace_control = true;
 		sw_desc.driver_data = cdns;
 		sw_desc.fwnode = dev->fwnode;
@@ -448,7 +448,7 @@ int cdns3_init(struct cdns3 *cdns)
 
 	if (cdns->wakeup_irq) {
 		ret = devm_request_irq(cdns->dev, cdns->wakeup_irq,
-						cdns3_wakeup_irq,
+						cdns_wakeup_irq,
 						IRQF_SHARED,
 						dev_name(cdns->dev), cdns);
 
@@ -458,11 +458,11 @@ int cdns3_init(struct cdns3 *cdns)
 		}
 	}
 
-	ret = cdns3_drd_init(cdns);
+	ret = cdns_drd_init(cdns);
 	if (ret)
 		goto init_failed;
 
-	ret = cdns3_core_init_role(cdns);
+	ret = cdns_core_init_role(cdns);
 	if (ret)
 		goto init_failed;
 
@@ -472,32 +472,32 @@ int cdns3_init(struct cdns3 *cdns)
 
 	return 0;
 init_failed:
-	cdns3_drd_exit(cdns);
+	cdns_drd_exit(cdns);
 role_switch_unregister:
 	if (cdns->role_sw)
 		usb_role_switch_unregister(cdns->role_sw);
 
 	return ret;
 }
-EXPORT_SYMBOL_GPL(cdns3_init);
+EXPORT_SYMBOL_GPL(cdns_init);
 
 /**
- * cdns3_remove - unbind drd driver and clean up
- * @cdns: Pointer to cdnsp structure.
+ * cdns_remove - unbind drd driver and clean up
+ * @cdns: Pointer to cdns structure.
  *
  * Returns 0 on success otherwise negative errno
  */
-int cdns3_remove(struct cdns3 *cdns)
+int cdns_remove(struct cdns *cdns)
 {
-	cdns3_exit_roles(cdns);
+	cdns_exit_roles(cdns);
 	usb_role_switch_unregister(cdns->role_sw);
 
 	return 0;
 }
-EXPORT_SYMBOL_GPL(cdns3_remove);
+EXPORT_SYMBOL_GPL(cdns_remove);
 
 #ifdef CONFIG_PM_SLEEP
-int cdns3_suspend(struct cdns3 *cdns)
+int cdns_suspend(struct cdns *cdns)
 {
 	struct device *dev = cdns->dev;
 	unsigned long flags;
@@ -513,9 +513,9 @@ int cdns3_suspend(struct cdns3 *cdns)
 
 	return 0;
 }
-EXPORT_SYMBOL_GPL(cdns3_suspend);
+EXPORT_SYMBOL_GPL(cdns_suspend);
 
-int cdns3_resume(struct cdns3 *cdns, u8 set_active)
+int cdns_resume(struct cdns *cdns, u8 set_active)
 {
 	struct device *dev = cdns->dev;
 
@@ -530,7 +530,7 @@ int cdns3_resume(struct cdns3 *cdns, u8 set_active)
 
 	return 0;
 }
-EXPORT_SYMBOL_GPL(cdns3_resume);
+EXPORT_SYMBOL_GPL(cdns_resume);
 #endif /* CONFIG_PM_SLEEP */
 
 MODULE_AUTHOR("Peter Chen <peter.chen@nxp.com>");