usb: ehci: pass full speed devices to companion controller
According to the "Enhanced Host Controller Interface Specification for Universal Serial Bus" after a USB port reset the EHCI Driver checks the PortEnable bit in the PORTSC register. If set to a one, the connected device is a high-speed device [...]. At the time the EHCI Driver receives the port reset and enable request the LineStatus bits might indicate a low-speed device. Additionally, when the port reset process is complete, the PortEnable field may indicate that a full-speed device is attached. In either case the EHCI driver sets the PortOwner bit in the PORTSC register to a one to release port ownership to a companion host controller. Signed-off-by: Peter Mamonov <pmamonov@gmail.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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drivers/usb/host/ehci-hcd.c |
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