From 5bf0c1d26a0dc6f4640e381e0029456add62c91a Mon Sep 17 00:00:00 2001 From: Maya Erez Date: Mon, 9 Dec 2013 23:15:30 +0200 Subject: [PATCH] usb: phy: Expose new PHY callback for performing PHY reset Add a new PHY callback for performing PHY reset, which is required by some targets during their initialization sequence. As usb_phy_reset name was already in use by local msm PHY APIs, change the previous usb_phy_reset to msm_usb_phy_reset. Change-Id: Ieb5099d12e107c123d8889058aa564d0b091d6f9 Signed-off-by: Maya Erez --- include/linux/usb/phy.h | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/include/linux/usb/phy.h b/include/linux/usb/phy.h index 31a8068c42a5..606402e14db6 100644 --- a/include/linux/usb/phy.h +++ b/include/linux/usb/phy.h @@ -122,6 +122,9 @@ struct usb_phy { enum usb_device_speed speed); int (*notify_disconnect)(struct usb_phy *x, enum usb_device_speed speed); + + /* reset the PHY clocks */ + int (*reset)(struct usb_phy *x); }; /** @@ -196,6 +199,15 @@ usb_phy_vbus_off(struct usb_phy *x) return x->set_vbus(x, false); } +static inline int +usb_phy_reset(struct usb_phy *x) +{ + if (x && x->reset) + return x->reset(x); + + return 0; +} + /* for usb host and peripheral controller drivers */ #if IS_ENABLED(CONFIG_USB_PHY) extern struct usb_phy *usb_get_phy(enum usb_phy_type type);