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![Chen-Yu Tsai](/assets/img/avatar_default.png)
The Linux kernel musb driver expects VBUS to be off while initializing
musb. Having it on results in a repeating string of warnings, followed
by an unusable peripheral. The peripheral is only usable after
physically removing the OTG adapter, letting musb reset its state.
This partially reverts commit c9f8947e66
("sunxi: usb-phy: Never
power off the usb ports")
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
29 lines
853 B
C
29 lines
853 B
C
/*
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* Sunxi usb-phy code
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*
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* Copyright (C) 2015 Hans de Goede <hdegoede@redhat.com>
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* Copyright (C) 2014 Roman Byshko <rbyshko@gmail.com>
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*
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* Based on code from
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* Allwinner Technology Co., Ltd. <www.allwinnertech.com>
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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int sunxi_usb_phy_probe(void);
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int sunxi_usb_phy_remove(void);
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void sunxi_usb_phy_init(int index);
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void sunxi_usb_phy_exit(int index);
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void sunxi_usb_phy_power_on(int index);
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void sunxi_usb_phy_power_off(int index);
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int sunxi_usb_phy_vbus_detect(int index);
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int sunxi_usb_phy_id_detect(int index);
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void sunxi_usb_phy_enable_squelch_detect(int index, int enable);
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/* Not really phy related, but we have to declare this somewhere ... */
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#if defined(CONFIG_USB_MUSB_HOST) || defined(CONFIG_USB_MUSB_GADGET)
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void sunxi_musb_board_init(void);
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#else
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#define sunxi_musb_board_init()
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#endif
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