The resynced DWC3 core includes linux/usb/phy.h and uses struct usb_phy, usb_phy_init(), usb_phy_shutdown(), usb_phy_set_power() and usb_phy_set_suspend(). u-boot has none of them.
Add a cut down version of include/linux/usb/phy.h from Linux v6.16. Only the parts the DWC3 core needs are here. usb_phy_set_suspend() is a stub that returns 0. u-boot never suspends the controller, so there is nothing to do. Linux calls usb_phy_set_charger_current() from usb_phy_set_power(). u-boot has no charger framework, so the call is left as a comment. It marks where the call goes if someone adds one later. Co-developed-by: Jerome Forissier <[email protected]> Signed-off-by: Jerome Forissier <[email protected]> Co-developed-by: Jens Wiklander <[email protected]> Signed-off-by: Jens Wiklander <[email protected]> Signed-off-by: Anders Roxell <[email protected]> --- include/linux/usb/phy.h | 56 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 56 insertions(+) diff --git a/include/linux/usb/phy.h b/include/linux/usb/phy.h index 14b2c7eb2e63..afda7870e21e 100644 --- a/include/linux/usb/phy.h +++ b/include/linux/usb/phy.h @@ -21,6 +21,13 @@ enum usb_phy_interface { USBPHY_INTERFACE_MODE_HSIC, }; +/* associate a type with PHY */ +enum usb_phy_type { + USB_PHY_TYPE_UNDEFINED, + USB_PHY_TYPE_USB2, + USB_PHY_TYPE_USB3, +}; + #if CONFIG_IS_ENABLED(DM_USB) /** * usb_get_phy_mode - Get phy mode for given device_node @@ -37,4 +44,53 @@ static inline enum usb_phy_interface usb_get_phy_mode(ofnode node) } #endif +struct usb_phy { + struct device *dev; + + /* initialize/shutdown the phy */ + int (*init)(struct usb_phy *x); + void (*shutdown)(struct usb_phy *x); + + /* enable/disable VBUS */ + int (*set_vbus)(struct usb_phy *x, int on); + + /* effective for B devices, ignored for A-peripheral */ + int (*set_power)(struct usb_phy *x, + unsigned int mA); +}; + +static inline int +usb_phy_init(struct usb_phy *x) +{ + if (x && x->init) + return x->init(x); + + return 0; +} + +static inline void +usb_phy_shutdown(struct usb_phy *x) +{ + if (x && x->shutdown) + x->shutdown(x); +} + +static inline int +usb_phy_set_power(struct usb_phy *x, unsigned int mA) +{ + if (!x) + return 0; + + /* TODO usb_phy_set_charger_current(x, mA); */ + + if (x->set_power) + return x->set_power(x, mA); + return 0; +} + +static inline int +usb_phy_set_suspend(struct usb_phy *x, int suspend) +{ + return 0; +} #endif /* __LINUX_USB_PHY_H */ -- 2.53.0
