The operations in current otg.c are actually for USB PHY's
Move it from drivers/usb/otg/ to drivers/usb/phy/
Signed-off-by: Peter Chen <peter.chen@xxxxxxxxxxxxx>
---
drivers/usb/otg/Makefile | 3 -
drivers/usb/otg/otg.c | 239 ----------------------------------------------
drivers/usb/phy/Makefile | 3 +
drivers/usb/phy/phy.c | 239 ++++++++++++++++++++++++++++++++++++++++++++++
4 files changed, 242 insertions(+), 242 deletions(-)
diff --git a/drivers/usb/otg/Makefile b/drivers/usb/otg/Makefile
index a844b8d..6abc453 100644
--- a/drivers/usb/otg/Makefile
+++ b/drivers/usb/otg/Makefile
@@ -5,9 +5,6 @@
ccflags-$(CONFIG_USB_DEBUG) := -DDEBUG
ccflags-$(CONFIG_USB_GADGET_DEBUG) += -DDEBUG
-# infrastructure
-obj-$(CONFIG_USB_OTG_UTILS) += otg.o
-
# transceiver drivers
obj-$(CONFIG_USB_GPIO_VBUS) += gpio_vbus.o
obj-$(CONFIG_ISP1301_OMAP) += isp1301_omap.o
diff --git a/drivers/usb/otg/otg.c b/drivers/usb/otg/otg.c
deleted file mode 100644
index 4a91b18..0000000
--- a/drivers/usb/otg/otg.c
+++ /dev/null
@@ -1,239 +0,0 @@
-/*
- * otg.c -- USB OTG utility code
- *
- * Copyright (C) 2004 Texas Instruments
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- */
-
-#include <linux/kernel.h>
-#include <linux/export.h>
-#include <linux/err.h>
-#include <linux/device.h>
-#include <linux/slab.h>
-
-#include <linux/usb/otg.h>
-
-static LIST_HEAD(phy_list);
-static DEFINE_SPINLOCK(phy_lock);
-
-static struct usb_phy *__usb_find_phy(struct list_head *list,
- enum usb_phy_type type)
-{
- struct usb_phy *phy = NULL;
-
- list_for_each_entry(phy, list, head) {
- if (phy->type != type)
- continue;
-
- return phy;
- }
-
- return ERR_PTR(-ENODEV);
-}
-
-static void devm_usb_phy_release(struct device *dev, void *res)
-{
- struct usb_phy *phy = *(struct usb_phy **)res;
-
- usb_put_phy(phy);
-}
-
-static int devm_usb_phy_match(struct device *dev, void *res, void *match_data)
-{
- return res == match_data;
-}
-
-/**
- * devm_usb_get_phy - find the USB PHY
- * @dev - device that requests this phy
- * @type - the type of the phy the controller requires
- *
- * Gets the phy using usb_get_phy(), and associates a device with it using
- * devres. On driver detach, release function is invoked on the devres data,
- * then, devres data is freed.
- *
- * For use by USB host and peripheral drivers.
- */
-struct usb_phy *devm_usb_get_phy(struct device *dev, enum usb_phy_type type)
-{
- struct usb_phy **ptr, *phy;
-
- ptr = devres_alloc(devm_usb_phy_release, sizeof(*ptr), GFP_KERNEL);
- if (!ptr)
- return NULL;
-
- phy = usb_get_phy(type);
- if (!IS_ERR(phy)) {
- *ptr = phy;
- devres_add(dev, ptr);
- } else
- devres_free(ptr);
-
- return phy;
-}
-EXPORT_SYMBOL(devm_usb_get_phy);
-
-/**
- * usb_get_phy - find the USB PHY
- * @type - the type of the phy the controller requires
- *
- * Returns the phy driver, after getting a refcount to it; or
- * -ENODEV if there is no such phy. The caller is responsible for
- * calling usb_put_phy() to release that count.
- *
- * For use by USB host and peripheral drivers.
- */
-struct usb_phy *usb_get_phy(enum usb_phy_type type)
-{
- struct usb_phy *phy = NULL;
- unsigned long flags;
-
- spin_lock_irqsave(&phy_lock, flags);
-
- phy = __usb_find_phy(&phy_list, type);
- if (IS_ERR(phy)) {
- pr_err("unable to find transceiver of type %s\n",
- usb_phy_type_string(type));
- goto err0;
- }
-
- get_device(phy->dev);
-
-err0:
- spin_unlock_irqrestore(&phy_lock, flags);
-
- return phy;
-}
-EXPORT_SYMBOL(usb_get_phy);
-
-/**
- * devm_usb_put_phy - release the USB PHY
- * @dev - device that wants to release this phy
- * @phy - the phy returned by devm_usb_get_phy()
- *
- * destroys the devres associated with this phy and invokes usb_put_phy
- * to release the phy.
- *
- * For use by USB host and peripheral drivers.
- */
-void devm_usb_put_phy(struct device *dev, struct usb_phy *phy)
-{
- int r;
-
- r = devres_destroy(dev, devm_usb_phy_release, devm_usb_phy_match, phy);
- dev_WARN_ONCE(dev, r, "couldn't find PHY resource\n");
-}
-EXPORT_SYMBOL(devm_usb_put_phy);
-
-/**
- * usb_put_phy - release the USB PHY
- * @x: the phy returned by usb_get_phy()
- *
- * Releases a refcount the caller received from usb_get_phy().
- *
- * For use by USB host and peripheral drivers.
- */
-void usb_put_phy(struct usb_phy *x)
-{
- if (x)
- put_device(x->dev);
-}
-EXPORT_SYMBOL(usb_put_phy);
-
-/**
- * usb_add_phy - declare the USB PHY
- * @x: the USB phy to be used; or NULL
- * @type - the type of this PHY
- *
- * This call is exclusively for use by phy drivers, which
- * coordinate the activities of drivers for host and peripheral
- * controllers, and in some cases for VBUS current regulation.
- */
-int usb_add_phy(struct usb_phy *x, enum usb_phy_type type)
-{
- int ret = 0;
- unsigned long flags;
- struct usb_phy *phy;
-
- if (x->type != USB_PHY_TYPE_UNDEFINED) {
- dev_err(x->dev, "not accepting initialized PHY %s\n", x->label);
- return -EINVAL;
- }
-
- spin_lock_irqsave(&phy_lock, flags);
-
- list_for_each_entry(phy, &phy_list, head) {
- if (phy->type == type) {
- ret = -EBUSY;
- dev_err(x->dev, "transceiver type %s already exists\n",
- usb_phy_type_string(type));
- goto out;
- }
- }
-
- x->type = type;
- list_add_tail(&x->head, &phy_list);
-
-out:
- spin_unlock_irqrestore(&phy_lock, flags);
- return ret;
-}
-EXPORT_SYMBOL(usb_add_phy);
-
-/**
- * usb_remove_phy - remove the OTG PHY
- * @x: the USB OTG PHY to be removed;
- *
- * This reverts the effects of usb_add_phy
- */
-void usb_remove_phy(struct usb_phy *x)
-{
- unsigned long flags;
-
- spin_lock_irqsave(&phy_lock, flags);
- if (x)
- list_del(&x->head);
- spin_unlock_irqrestore(&phy_lock, flags);
-}
-EXPORT_SYMBOL(usb_remove_phy);
-
-const char *otg_state_string(enum usb_state state)
-{
- switch (state) {
- case OTG_STATE_A_IDLE:
- return "a_idle";
- case OTG_STATE_A_WAIT_VRISE:
- return "a_wait_vrise";
- case OTG_STATE_A_WAIT_BCON:
- return "a_wait_bcon";
- case OTG_STATE_A_HOST:
- return "a_host";
- case OTG_STATE_A_SUSPEND:
- return "a_suspend";
- case OTG_STATE_A_WAIT_VFALL:
- return "a_wait_vfall";
- case OTG_STATE_A_VBUS_ERR:
- return "a_vbus_err";
- case OTG_STATE_B_IDLE:
- return "b_idle";
- case OTG_STATE_B_SRP_INIT:
- return "b_srp_init";
- case OTG_STATE_B_PERIPHERAL:
- return "b_peripheral";
-#ifdef CONFIG_USB_OTG
- case OTG_STATE_A_PERIPHERAL:
- return "a_peripheral";
- case OTG_STATE_B_HOST:
- return "b_host";
- case OTG_STATE_B_WAIT_ACON:
- return "b_wait_acon";
-#endif
- default:
- return "UNDEFINED";
- }
-}
-EXPORT_SYMBOL(otg_state_string);
diff --git a/drivers/usb/phy/Makefile b/drivers/usb/phy/Makefile
index b069f29..3afb9f0 100644
--- a/drivers/usb/phy/Makefile
+++ b/drivers/usb/phy/Makefile
@@ -4,6 +4,9 @@
ccflags-$(CONFIG_USB_DEBUG) := -DDEBUG
+# infrastructure
+obj-$(CONFIG_USB_OTG_UTILS) += phy.o
+
obj-$(CONFIG_OMAP_USB2) += omap-usb2.o
obj-$(CONFIG_USB_ISP1301) += isp1301.o
obj-$(CONFIG_MV_U3D_PHY) += mv_u3d_phy.o
diff --git a/drivers/usb/phy/phy.c b/drivers/usb/phy/phy.c
new file mode 100644
index 0000000..c2a5a70
--- /dev/null
+++ b/drivers/usb/phy/phy.c
@@ -0,0 +1,239 @@
+/*
+ * phy.c -- USB PHY utility code
+ *
+ * Copyright (C) 2004 Texas Instruments
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+#include <linux/kernel.h>
+#include <linux/export.h>
+#include <linux/err.h>
+#include <linux/device.h>
+#include <linux/slab.h>
+
+#include <linux/usb/otg.h>
+
+static LIST_HEAD(phy_list);
+static DEFINE_SPINLOCK(phy_lock);
+
+static struct usb_phy *__usb_find_phy(struct list_head *list,
+ enum usb_phy_type type)
+{
+ struct usb_phy *phy = NULL;
+
+ list_for_each_entry(phy, list, head) {
+ if (phy->type != type)
+ continue;
+
+ return phy;
+ }
+
+ return ERR_PTR(-ENODEV);
+}
+
+static void devm_usb_phy_release(struct device *dev, void *res)
+{
+ struct usb_phy *phy = *(struct usb_phy **)res;
+
+ usb_put_phy(phy);
+}
+
+static int devm_usb_phy_match(struct device *dev, void *res, void *match_data)
+{
+ return res == match_data;
+}
+
+/**
+ * devm_usb_get_phy - find the USB PHY
+ * @dev - device that requests this phy
+ * @type - the type of the phy the controller requires
+ *
+ * Gets the phy using usb_get_phy(), and associates a device with it using
+ * devres. On driver detach, release function is invoked on the devres data,
+ * then, devres data is freed.
+ *
+ * For use by USB host and peripheral drivers.
+ */
+struct usb_phy *devm_usb_get_phy(struct device *dev, enum usb_phy_type type)
+{
+ struct usb_phy **ptr, *phy;
+
+ ptr = devres_alloc(devm_usb_phy_release, sizeof(*ptr), GFP_KERNEL);
+ if (!ptr)
+ return NULL;
+
+ phy = usb_get_phy(type);
+ if (!IS_ERR(phy)) {
+ *ptr = phy;
+ devres_add(dev, ptr);
+ } else
+ devres_free(ptr);
+
+ return phy;
+}
+EXPORT_SYMBOL(devm_usb_get_phy);
+
+/**
+ * usb_get_phy - find the USB PHY
+ * @type - the type of the phy the controller requires
+ *
+ * Returns the phy driver, after getting a refcount to it; or
+ * -ENODEV if there is no such phy. The caller is responsible for
+ * calling usb_put_phy() to release that count.
+ *
+ * For use by USB host and peripheral drivers.
+ */
+struct usb_phy *usb_get_phy(enum usb_phy_type type)
+{
+ struct usb_phy *phy = NULL;
+ unsigned long flags;
+
+ spin_lock_irqsave(&phy_lock, flags);
+
+ phy = __usb_find_phy(&phy_list, type);
+ if (IS_ERR(phy)) {
+ pr_err("unable to find transceiver of type %s\n",
+ usb_phy_type_string(type));
+ goto err0;
+ }
+
+ get_device(phy->dev);
+
+err0:
+ spin_unlock_irqrestore(&phy_lock, flags);
+
+ return phy;
+}
+EXPORT_SYMBOL(usb_get_phy);
+
+/**
+ * devm_usb_put_phy - release the USB PHY
+ * @dev - device that wants to release this phy
+ * @phy - the phy returned by devm_usb_get_phy()
+ *
+ * destroys the devres associated with this phy and invokes usb_put_phy
+ * to release the phy.
+ *
+ * For use by USB host and peripheral drivers.
+ */
+void devm_usb_put_phy(struct device *dev, struct usb_phy *phy)
+{
+ int r;
+
+ r = devres_destroy(dev, devm_usb_phy_release, devm_usb_phy_match, phy);
+ dev_WARN_ONCE(dev, r, "couldn't find PHY resource\n");
+}
+EXPORT_SYMBOL(devm_usb_put_phy);
+
+/**
+ * usb_put_phy - release the USB PHY
+ * @x: the phy returned by usb_get_phy()
+ *
+ * Releases a refcount the caller received from usb_get_phy().
+ *
+ * For use by USB host and peripheral drivers.
+ */
+void usb_put_phy(struct usb_phy *x)
+{
+ if (x)
+ put_device(x->dev);
+}
+EXPORT_SYMBOL(usb_put_phy);
+
+/**
+ * usb_add_phy - declare the USB PHY
+ * @x: the USB phy to be used; or NULL
+ * @type - the type of this PHY
+ *
+ * This call is exclusively for use by phy drivers, which
+ * coordinate the activities of drivers for host and peripheral
+ * controllers, and in some cases for VBUS current regulation.
+ */
+int usb_add_phy(struct usb_phy *x, enum usb_phy_type type)
+{
+ int ret = 0;
+ unsigned long flags;
+ struct usb_phy *phy;
+
+ if (x->type != USB_PHY_TYPE_UNDEFINED) {
+ dev_err(x->dev, "not accepting initialized PHY %s\n", x->label);
+ return -EINVAL;
+ }
+
+ spin_lock_irqsave(&phy_lock, flags);
+
+ list_for_each_entry(phy, &phy_list, head) {
+ if (phy->type == type) {
+ ret = -EBUSY;
+ dev_err(x->dev, "transceiver type %s already exists\n",
+ usb_phy_type_string(type));
+ goto out;
+ }
+ }
+
+ x->type = type;
+ list_add_tail(&x->head, &phy_list);
+
+out:
+ spin_unlock_irqrestore(&phy_lock, flags);
+ return ret;
+}
+EXPORT_SYMBOL(usb_add_phy);
+
+/**
+ * usb_remove_phy - remove the OTG PHY
+ * @x: the USB OTG PHY to be removed;
+ *
+ * This reverts the effects of usb_add_phy
+ */
+void usb_remove_phy(struct usb_phy *x)
+{
+ unsigned long flags;
+
+ spin_lock_irqsave(&phy_lock, flags);
+ if (x)
+ list_del(&x->head);
+ spin_unlock_irqrestore(&phy_lock, flags);
+}
+EXPORT_SYMBOL(usb_remove_phy);
+
+const char *otg_state_string(enum usb_state state)
+{
+ switch (state) {
+ case OTG_STATE_A_IDLE:
+ return "a_idle";
+ case OTG_STATE_A_WAIT_VRISE:
+ return "a_wait_vrise";
+ case OTG_STATE_A_WAIT_BCON:
+ return "a_wait_bcon";
+ case OTG_STATE_A_HOST:
+ return "a_host";
+ case OTG_STATE_A_SUSPEND:
+ return "a_suspend";
+ case OTG_STATE_A_WAIT_VFALL:
+ return "a_wait_vfall";
+ case OTG_STATE_A_VBUS_ERR:
+ return "a_vbus_err";
+ case OTG_STATE_B_IDLE:
+ return "b_idle";
+ case OTG_STATE_B_SRP_INIT:
+ return "b_srp_init";
+ case OTG_STATE_B_PERIPHERAL:
+ return "b_peripheral";
+#ifdef CONFIG_USB_OTG
+ case OTG_STATE_A_PERIPHERAL:
+ return "a_peripheral";
+ case OTG_STATE_B_HOST:
+ return "b_host";
+ case OTG_STATE_B_WAIT_ACON:
+ return "b_wait_acon";
+#endif
+ default:
+ return "UNDEFINED";
+ }
+}
+EXPORT_SYMBOL(otg_state_string);
--
1.7.0.4
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