1 // SPDX-License-Identifier: GPL-2.0+ 2 /* 3 * Copyright (C) 2012 Hauke Mehrtens <hauke@hauke-m.de> 4 */ 5 6 #ifndef __USB_CORE_EHCI_PDRIVER_H 7 #define __USB_CORE_EHCI_PDRIVER_H 8 9 struct platform_device; 10 struct usb_hcd; 11 12 /** 13 * struct usb_ehci_pdata - platform_data for generic ehci driver 14 * 15 * @caps_offset: offset of the EHCI Capability Registers to the start of 16 * the io memory region provided to the driver. 17 * @has_tt: set to 1 if TT is integrated in root hub. 18 * @port_power_on: set to 1 if the controller needs a power up after 19 * initialization. 20 * @port_power_off: set to 1 if the controller needs to be powered down 21 * after initialization. 22 * @no_io_watchdog: set to 1 if the controller does not need the I/O 23 * watchdog to run. 24 * @reset_on_resume: set to 1 if the controller needs to be reset after 25 * a suspend / resume cycle (but can't detect that itself). 26 * 27 * These are general configuration options for the EHCI controller. All of 28 * these options are activating more or less workarounds for some hardware. 29 */ 30 struct usb_ehci_pdata { 31 int caps_offset; 32 unsigned has_tt:1; 33 unsigned has_synopsys_hc_bug:1; 34 unsigned big_endian_desc:1; 35 unsigned big_endian_mmio:1; 36 unsigned no_io_watchdog:1; 37 unsigned reset_on_resume:1; 38 unsigned dma_mask_64:1; 39 unsigned spurious_oc:1; 40 41 /* Turn on all power and clocks */ 42 int (*power_on)(struct platform_device *pdev); 43 /* Turn off all power and clocks */ 44 void (*power_off)(struct platform_device *pdev); 45 /* Turn on only VBUS suspend power and hotplug detection, 46 * turn off everything else */ 47 void (*power_suspend)(struct platform_device *pdev); 48 int (*pre_setup)(struct usb_hcd *hcd); 49 }; 50 51 #endif /* __USB_CORE_EHCI_PDRIVER_H */ 52