As drivers/usb/otg/otg.c contains most of the PHY related APIs which are not OTG specific, moving them to more logical place under driver/usb/phy.
Signed-off-by: Venu Byravarasu <[email protected]> --- drivers/usb/otg/otg.c | 184 ---------------------------------------------- drivers/usb/phy/Makefile | 1 + 2 files changed, 1 insertions(+), 184 deletions(-) diff --git a/drivers/usb/otg/otg.c b/drivers/usb/otg/otg.c index a30c041..95561b9 100644 --- a/drivers/usb/otg/otg.c +++ b/drivers/usb/otg/otg.c @@ -17,190 +17,6 @@ #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_otg_state state) { switch (state) { diff --git a/drivers/usb/phy/Makefile b/drivers/usb/phy/Makefile index 1a579a8..5a21017 100644 --- a/drivers/usb/phy/Makefile +++ b/drivers/usb/phy/Makefile @@ -4,6 +4,7 @@ ccflags-$(CONFIG_USB_DEBUG) := -DDEBUG +obj-y += usb_phy.o obj-$(CONFIG_OMAP_USB2) += omap-usb2.o obj-$(CONFIG_USB_ISP1301) += isp1301.o obj-$(CONFIG_MV_U3D_PHY) += mv_u3d_phy.o -- 1.7.0.4 -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
