forked from mirrors/linux
7739376eb1
Clean up the USB device-node helper that is used to look up a device node given a parent hub device and a port number. Also pass in a struct usb_device as first argument to provide some type checking. Give the helper the more descriptive name usb_of_get_device_node(), which matches the new usb_of_get_interface_node() helper that is used to look up a second type of of child node from a USB device. Note that the terms "device node" and "interface node" are defined and used by the OF Recommended Practice for USB. Signed-off-by: Johan Hovold <johan@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
72 lines
1.8 KiB
C
72 lines
1.8 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/*
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* OF helpers for usb devices.
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*
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* This file is released under the GPLv2
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*/
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#ifndef __LINUX_USB_OF_H
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#define __LINUX_USB_OF_H
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#include <linux/usb/ch9.h>
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#include <linux/usb/otg.h>
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#include <linux/usb/phy.h>
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struct usb_device;
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#if IS_ENABLED(CONFIG_OF)
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enum usb_dr_mode of_usb_get_dr_mode_by_phy(struct device_node *np, int arg0);
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bool of_usb_host_tpl_support(struct device_node *np);
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int of_usb_update_otg_caps(struct device_node *np,
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struct usb_otg_caps *otg_caps);
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struct device_node *usb_of_get_device_node(struct usb_device *hub, int port1);
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bool usb_of_has_combined_node(struct usb_device *udev);
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struct device_node *usb_of_get_interface_node(struct usb_device *udev,
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u8 config, u8 ifnum);
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struct device *usb_of_get_companion_dev(struct device *dev);
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#else
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static inline enum usb_dr_mode
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of_usb_get_dr_mode_by_phy(struct device_node *np, int arg0)
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{
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return USB_DR_MODE_UNKNOWN;
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}
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static inline bool of_usb_host_tpl_support(struct device_node *np)
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{
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return false;
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}
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static inline int of_usb_update_otg_caps(struct device_node *np,
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struct usb_otg_caps *otg_caps)
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{
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return 0;
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}
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static inline struct device_node *
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usb_of_get_device_node(struct usb_device *hub, int port1)
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{
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return NULL;
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}
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static inline bool usb_of_has_combined_node(struct usb_device *udev)
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{
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return false;
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}
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static inline struct device_node *
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usb_of_get_interface_node(struct usb_device *udev, u8 config, u8 ifnum)
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{
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return NULL;
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}
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static inline struct device *usb_of_get_companion_dev(struct device *dev)
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{
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return NULL;
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}
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#endif
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#if IS_ENABLED(CONFIG_OF) && IS_ENABLED(CONFIG_USB_SUPPORT)
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enum usb_phy_interface of_usb_get_phy_mode(struct device_node *np);
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#else
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static inline enum usb_phy_interface of_usb_get_phy_mode(struct device_node *np)
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{
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return USBPHY_INTERFACE_MODE_UNKNOWN;
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}
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#endif
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#endif /* __LINUX_USB_OF_H */
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