usb: renesas_usbhs: remove notify_hotplug callback

The notify_hotplug callback was supported in v3.10, but the last user
(armadillo800eva) was removed by the commit 1fa59bda ("ARM: shmobile:
Remove legacy board code for Armadillo-800 EVA"). So, this patch
removes it.
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/usb/renesas_usbhs/common.c

@@ -3,6 +3,7 @@
  * Renesas USB driver
  *
  * Copyright (C) 2011 Renesas Solutions Corp.
+ * Copyright (C) 2019 Renesas Electronics Corporation
  * Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
  */
 #include <linux/clk.h>
@@ -513,7 +514,7 @@ static void usbhsc_notify_hotplug(struct work_struct *work)
 	usbhsc_hotplug(priv);
 }
 
-static int usbhsc_drvcllbck_notify_hotplug(struct platform_device *pdev)
+int usbhsc_schedule_notify_hotplug(struct platform_device *pdev)
 {
 	struct usbhs_priv *priv = usbhs_pdev_to_priv(pdev);
 	int delay = usbhs_get_dparam(priv, detection_delay);
@@ -667,7 +668,6 @@ static struct renesas_usbhs_platform_info *usbhs_parse_dt(struct device *dev)
 static int usbhs_probe(struct platform_device *pdev)
 {
 	struct renesas_usbhs_platform_info *info = renesas_usbhs_get_info(pdev);
-	struct renesas_usbhs_driver_callback *dfunc;
 	struct usbhs_priv *priv;
 	struct resource *res, *irq_res;
 	int ret;
@@ -721,10 +721,6 @@ static int usbhs_probe(struct platform_device *pdev)
 	}
 	priv->pfunc = info->platform_callback;
 
-	/* set driver callback functions for platform */
-	dfunc			= &info->driver_callback;
-	dfunc->notify_hotplug	= usbhsc_drvcllbck_notify_hotplug;
-
 	/* set default param if platform doesn't have */
 	if (!priv->dparam.pipe_configs) {
 		priv->dparam.pipe_configs = usbhsc_default_pipe;
@@ -818,7 +814,7 @@ static int usbhs_probe(struct platform_device *pdev)
 	/*
 	 * manual call notify_hotplug for cold plug
 	 */
-	usbhsc_drvcllbck_notify_hotplug(pdev);
+	usbhsc_schedule_notify_hotplug(pdev);
 
 	dev_info(&pdev->dev, "probed\n");
 
@@ -843,13 +839,9 @@ static int usbhs_probe(struct platform_device *pdev)
 static int usbhs_remove(struct platform_device *pdev)
 {
 	struct usbhs_priv *priv = usbhs_pdev_to_priv(pdev);
-	struct renesas_usbhs_platform_info *info = renesas_usbhs_get_info(pdev);
-	struct renesas_usbhs_driver_callback *dfunc = &info->driver_callback;
 
 	dev_dbg(&pdev->dev, "usb remove\n");
 
-	dfunc->notify_hotplug = NULL;
-
 	/* power off */
 	if (!usbhs_get_dparam(priv, runtime_pwctrl))
 		usbhsc_power_ctrl(priv, 0);
@@ -894,7 +886,7 @@ static __maybe_unused int usbhsc_resume(struct device *dev)
 
 	usbhs_platform_call(priv, phy_reset, pdev);
 
-	usbhsc_drvcllbck_notify_hotplug(pdev);
+	usbhsc_schedule_notify_hotplug(pdev);
 
 	return 0;
 }

drivers/usb/renesas_usbhs/common.h

@@ -3,6 +3,7 @@
  * Renesas USB driver
  *
  * Copyright (C) 2011 Renesas Solutions Corp.
+ * Copyright (C) 2019 Renesas Electronics Corporation
  * Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
  */
 #ifndef RENESAS_USB_DRIVER_H
@@ -317,6 +318,7 @@ void usbhs_bus_send_sof_enable(struct usbhs_priv *priv);
 void usbhs_bus_send_reset(struct usbhs_priv *priv);
 int usbhs_bus_get_speed(struct usbhs_priv *priv);
 int usbhs_vbus_ctrl(struct usbhs_priv *priv, int enable);
+int usbhsc_schedule_notify_hotplug(struct platform_device *pdev);
 
 /*
  * frame

drivers/usb/renesas_usbhs/mod.c

@@ -3,6 +3,7 @@
  * Renesas USB driver
  *
  * Copyright (C) 2011 Renesas Solutions Corp.
+ * Copyright (C) 2019 Renesas Electronics Corporation
  * Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
  */
 #include <linux/interrupt.h>
@@ -41,7 +42,7 @@ static int usbhsm_autonomy_irq_vbus(struct usbhs_priv *priv,
 {
 	struct platform_device *pdev = usbhs_priv_to_pdev(priv);
 
-	renesas_usbhs_call_notify_hotplug(pdev);
+	usbhsc_schedule_notify_hotplug(pdev);
 
 	return 0;
 }

drivers/usb/renesas_usbhs/mod_gadget.c

@@ -3,6 +3,7 @@
  * Renesas USB driver
  *
  * Copyright (C) 2011 Renesas Solutions Corp.
+ * Copyright (C) 2019 Renesas Electronics Corporation
  * Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
  */
 #include <linux/delay.h>
@@ -1023,7 +1024,7 @@ static int usbhsg_vbus_session(struct usb_gadget *gadget, int is_active)
 
 	gpriv->vbus_active = !!is_active;
 
-	renesas_usbhs_call_notify_hotplug(pdev);
+	usbhsc_schedule_notify_hotplug(pdev);
 
 	return 0;
 }

include/linux/usb/renesas_usbhs.h

@@ -3,6 +3,7 @@
  * Renesas USB
  *
  * Copyright (C) 2011 Renesas Solutions Corp.
+ * Copyright (C) 2019 Renesas Electronics Corporation
  * Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
  *
  * This program is distributed in the hope that it will be useful,
@@ -32,17 +33,6 @@ enum {
 	USBHS_MAX,
 };
 
-/*
- * callback functions table for driver
- *
- * These functions are called from platform for driver.
- * Callback function's pointer will be set before
- * renesas_usbhs_platform_callback :: hardware_init was called
- */
-struct renesas_usbhs_driver_callback {
-	int (*notify_hotplug)(struct platform_device *pdev);
-};
-
 /*
  * callback functions for platform
  *
@@ -213,12 +203,6 @@ struct renesas_usbhs_platform_info {
 	 */
 	struct renesas_usbhs_platform_callback	platform_callback;
 
-	/*
-	 * driver set these callback functions pointer.
-	 * platform can use it on callback functions
-	 */
-	struct renesas_usbhs_driver_callback	driver_callback;
-
 	/*
 	 * option:
 	 *
@@ -232,12 +216,4 @@ struct renesas_usbhs_platform_info {
  */
 #define renesas_usbhs_get_info(pdev)\
 	((struct renesas_usbhs_platform_info *)(pdev)->dev.platform_data)
-
-#define renesas_usbhs_call_notify_hotplug(pdev)				\
-	({								\
-		struct renesas_usbhs_driver_callback *dc;		\
-		dc = &(renesas_usbhs_get_info(pdev)->driver_callback);	\
-		if (dc && dc->notify_hotplug)				\
-			dc->notify_hotplug(pdev);			\
-	})
 #endif /* RENESAS_USB_H */