69bec72598
Although most of USB devices are hot-plug's, there are still some devices are hard wired on the board, eg, for HSIC and SSIC interface USB devices. If these kinds of USB devices are multiple functions, and they can supply other interfaces like i2c, gpios for other devices, we may need to describe these at device tree. In this commit, it uses "reg" in dts as physical port number to match the phyiscal port number decided by USB core, if they are the same, then the device node is for the device we are creating for USB core. Signed-off-by: Peter Chen <peter.chen@freescale.com> Acked-by: Philipp Zabel <p.zabel@pengutronix.de> Acked-by: Alan Stern <stern@rowland.harvard.edu> Acked-by: Rob Herring <robh@kernel.org> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
54 lines
1.3 KiB
C
54 lines
1.3 KiB
C
/*
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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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#if IS_ENABLED(CONFIG_OF)
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enum usb_dr_mode of_usb_get_dr_mode_by_phy(struct device_node *phy_np);
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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_child_node(struct device_node *parent,
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int portnum);
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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 *phy_np)
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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 *usb_of_get_child_node
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(struct device_node *parent, int portnum)
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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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