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linux-next/drivers/usb/phy/phy-am335x-control.h
Bin Liu 59f042f644 usb: phy: phy-am335x: bypass first VBUS sensing for host-only mode
To prevent VBUS contention, the am335x MUSB phy senses VBUS first before
transitioning to host mode. However, for host-only mode, VBUS could be
directly tied to 5V power rail which could prevent MUSB transitions to
host mode.

This change receives dr_mode of the controller then bypass the first
VBUS sensing for host-only mode, so that MUSB can work in host mode
event if VBUS is tied to 5V.

Signed-off-by: Bin Liu <b-liu@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-12-16 10:07:25 -06:00

24 lines
611 B
C

#ifndef _AM335x_PHY_CONTROL_H_
#define _AM335x_PHY_CONTROL_H_
struct phy_control {
void (*phy_power)(struct phy_control *phy_ctrl, u32 id,
enum usb_dr_mode dr_mode, bool on);
void (*phy_wkup)(struct phy_control *phy_ctrl, u32 id, bool on);
};
static inline void phy_ctrl_power(struct phy_control *phy_ctrl, u32 id,
enum usb_dr_mode dr_mode, bool on)
{
phy_ctrl->phy_power(phy_ctrl, id, dr_mode, on);
}
static inline void phy_ctrl_wkup(struct phy_control *phy_ctrl, u32 id, bool on)
{
phy_ctrl->phy_wkup(phy_ctrl, id, on);
}
struct phy_control *am335x_get_phy_control(struct device *dev);
#endif