mirror of
https://github.com/torvalds/linux.git
synced 2024-12-04 18:13:04 +00:00
ee6754ace1
This patch uses xhci_plat_priv.quirks to simplify. The previous code had conditions to set some quirks in xhci_rcar_init_quirk(). But, the xhci_rcar_init_quirk() is called at the same conditions. So, no behavior change. Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Link: https://lore.kernel.org/r/1567425698-27560-4-git-send-email-yoshihiro.shimoda.uh@renesas.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
56 lines
1.6 KiB
C
56 lines
1.6 KiB
C
// SPDX-License-Identifier: GPL-2.0
|
|
/*
|
|
* drivers/usb/host/xhci-rcar.h
|
|
*
|
|
* Copyright (C) 2014 Renesas Electronics Corporation
|
|
*/
|
|
|
|
#ifndef _XHCI_RCAR_H
|
|
#define _XHCI_RCAR_H
|
|
|
|
#define XHCI_RCAR_FIRMWARE_NAME_V1 "r8a779x_usb3_v1.dlmem"
|
|
#define XHCI_RCAR_FIRMWARE_NAME_V2 "r8a779x_usb3_v2.dlmem"
|
|
#define XHCI_RCAR_FIRMWARE_NAME_V3 "r8a779x_usb3_v3.dlmem"
|
|
|
|
#if IS_ENABLED(CONFIG_USB_XHCI_RCAR)
|
|
void xhci_rcar_start(struct usb_hcd *hcd);
|
|
int xhci_rcar_init_quirk(struct usb_hcd *hcd);
|
|
int xhci_rcar_resume_quirk(struct usb_hcd *hcd);
|
|
#else
|
|
static inline void xhci_rcar_start(struct usb_hcd *hcd)
|
|
{
|
|
}
|
|
|
|
static inline int xhci_rcar_init_quirk(struct usb_hcd *hcd)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static inline int xhci_rcar_resume_quirk(struct usb_hcd *hcd)
|
|
{
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
/*
|
|
* On R-Car Gen2 and Gen3, the AC64 bit (bit 0) of HCCPARAMS1 is set
|
|
* to 1. However, these SoCs don't support 64-bit address memory
|
|
* pointers. So, this driver clears the AC64 bit of xhci->hcc_params
|
|
* to call dma_set_coherent_mask(dev, DMA_BIT_MASK(32)) in
|
|
* xhci_gen_setup() by using the XHCI_NO_64BIT_SUPPORT quirk.
|
|
*
|
|
* And, since the firmware/internal CPU control the USBSTS.STS_HALT
|
|
* and the process speed is down when the roothub port enters U3,
|
|
* long delay for the handshake of STS_HALT is neeed in xhci_suspend()
|
|
* by using the XHCI_SLOW_SUSPEND quirk.
|
|
*/
|
|
#define SET_XHCI_PLAT_PRIV_FOR_RCAR(firmware) \
|
|
.firmware_name = firmware, \
|
|
.quirks = XHCI_NO_64BIT_SUPPORT | XHCI_TRUST_TX_LENGTH | \
|
|
XHCI_SLOW_SUSPEND, \
|
|
.init_quirk = xhci_rcar_init_quirk, \
|
|
.plat_start = xhci_rcar_start, \
|
|
.resume_quirk = xhci_rcar_resume_quirk,
|
|
|
|
#endif /* _XHCI_RCAR_H */
|