diff options
Diffstat (limited to 'drivers/usb/host/xhci-rcar.c')
| -rw-r--r-- | drivers/usb/host/xhci-rcar.c | 28 |
1 files changed, 0 insertions, 28 deletions
diff --git a/drivers/usb/host/xhci-rcar.c b/drivers/usb/host/xhci-rcar.c index 2b0ccd150209..c1025d321a41 100644 --- a/drivers/usb/host/xhci-rcar.c +++ b/drivers/usb/host/xhci-rcar.c @@ -107,15 +107,6 @@ static int xhci_rcar_is_gen2(struct device *dev) of_device_is_compatible(node, "renesas,rcar-gen2-xhci"); } -static int xhci_rcar_is_gen3(struct device *dev) -{ - struct device_node *node = dev->of_node; - - return of_device_is_compatible(node, "renesas,xhci-r8a7795") || - of_device_is_compatible(node, "renesas,xhci-r8a7796") || - of_device_is_compatible(node, "renesas,rcar-gen3-xhci"); -} - void xhci_rcar_start(struct usb_hcd *hcd) { u32 temp; @@ -226,32 +217,13 @@ static bool xhci_rcar_wait_for_pll_active(struct usb_hcd *hcd) /* This function needs to initialize a "phy" of usb before */ int xhci_rcar_init_quirk(struct usb_hcd *hcd) { - struct xhci_hcd *xhci = hcd_to_xhci(hcd); - /* If hcd->regs is NULL, we don't just call the following function */ if (!hcd->regs) return 0; - /* - * 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(). - * - * 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(). - */ - if (xhci_rcar_is_gen2(hcd->self.controller) || - xhci_rcar_is_gen3(hcd->self.controller)) { - xhci->quirks |= XHCI_NO_64BIT_SUPPORT | XHCI_SLOW_SUSPEND; - } - if (!xhci_rcar_wait_for_pll_active(hcd)) return -ETIMEDOUT; - xhci->quirks |= XHCI_TRUST_TX_LENGTH; return xhci_rcar_download_firmware(hcd); } |