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When the device tree indicates support for role switching through the "usb-role-switch" property, take the "role-switch-default-mode" property into account when deciding which role to put the controller into. This makes USB devices work on Apple M1 systems where the device tree may include a "dr_mode" property that is set to "otg", but where we need to put the controller into "host" mode to see devices connected to the type-C ports. Signed-off-by: Mark Kettenis <kettenis@openbsd.org>
50 lines
1.2 KiB
C
50 lines
1.2 KiB
C
/* SPDX-License-Identifier: GPL-2.0+ */
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/* include/linux/usb/otg.h
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*
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* Copyright (c) 2015 Texas Instruments Incorporated - http://www.ti.com
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*
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* USB OTG (On The Go) defines
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*/
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#ifndef __LINUX_USB_OTG_H
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#define __LINUX_USB_OTG_H
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#include <dm/ofnode.h>
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enum usb_dr_mode {
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USB_DR_MODE_UNKNOWN,
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USB_DR_MODE_HOST,
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USB_DR_MODE_PERIPHERAL,
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USB_DR_MODE_OTG,
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};
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/**
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* usb_get_dr_mode() - Get dual role mode for given device
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* @node: ofnode of the given device
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*
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* The function gets phy interface string from property 'dr_mode',
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* and returns the correspondig enum usb_dr_mode
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*/
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enum usb_dr_mode usb_get_dr_mode(ofnode node);
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/**
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* usb_get_dr_mode() - Get dual role mode for given device
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* @node: ofnode of the given device
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*
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* The function gets phy interface string from property
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* 'role-switch-defaulr-mode', and returns the correspondig enum
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* usb_dr_mode
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*/
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enum usb_dr_mode usb_get_role_switch_default_mode(ofnode node);
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/**
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* usb_get_maximum_speed() - Get maximum speed for given device
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* @node: ofnode of the given device
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*
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* The function gets phy interface string from property 'maximum-speed',
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* and returns the correspondig enum usb_device_speed
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*/
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enum usb_device_speed usb_get_maximum_speed(ofnode node);
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#endif /* __LINUX_USB_OTG_H */
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