3  * MediaTek xHCI Host Controller Driver
22 #include "xhci.h"
23 #include "xhci-mtk.h"
372 static void xhci_mtk_quirks(struct device *dev, struct xhci_hcd *xhci)  in xhci_mtk_quirks()  argument
374 	struct usb_hcd *hcd = xhci_to_hcd(xhci);  in xhci_mtk_quirks()
382 	xhci->quirks |= XHCI_PLAT;  in xhci_mtk_quirks()
383 	xhci->quirks |= XHCI_MTK_HOST;  in xhci_mtk_quirks()
388 	xhci->quirks |= XHCI_SPURIOUS_SUCCESS;  in xhci_mtk_quirks()
390 		xhci->quirks |= XHCI_LPM_SUPPORT;  in xhci_mtk_quirks()
392 		xhci->quirks |= XHCI_HW_LPM_DISABLE;  in xhci_mtk_quirks()
395 	 * MTK xHCI 0.96: PSA is 1 by default even if doesn't support stream,  in xhci_mtk_quirks()
398 	if (xhci->hci_version < 0x100 && HCC_MAX_PSA(xhci->hcc_params) == 4)  in xhci_mtk_quirks()
399 		xhci->quirks |= XHCI_BROKEN_STREAMS;  in xhci_mtk_quirks()
443 	struct xhci_hcd *xhci;  in xhci_mtk_probe()  local
540 	xhci = hcd_to_xhci(hcd);  in xhci_mtk_probe()
541 	xhci->main_hcd = hcd;  in xhci_mtk_probe()
546 	 * the xHCI spec on MTK's controller.  in xhci_mtk_probe()
548 	xhci->imod_interval = 5000;  in xhci_mtk_probe()
549 	device_property_read_u32(dev, "imod-interval-ns", &xhci->imod_interval);  in xhci_mtk_probe()
551 	xhci->shared_hcd = usb_create_shared_hcd(driver, dev,  in xhci_mtk_probe()
553 	if (!xhci->shared_hcd) {  in xhci_mtk_probe()
562 	if (HCC_MAX_PSA(xhci->hcc_params) >= 4 &&  in xhci_mtk_probe()
563 	    !(xhci->quirks & XHCI_BROKEN_STREAMS))  in xhci_mtk_probe()
564 		xhci->shared_hcd->can_do_streams = 1;  in xhci_mtk_probe()
566 	ret = usb_add_hcd(xhci->shared_hcd, irq, IRQF_SHARED);  in xhci_mtk_probe()
577 	usb_put_hcd(xhci->shared_hcd);  in xhci_mtk_probe()
601 	struct xhci_hcd	*xhci = hcd_to_xhci(hcd);  in xhci_mtk_remove()  local
602 	struct usb_hcd  *shared_hcd = xhci->shared_hcd;  in xhci_mtk_remove()
608 	xhci->shared_hcd = NULL;  in xhci_mtk_remove()
632 	struct xhci_hcd *xhci = hcd_to_xhci(hcd);  in xhci_mtk_suspend()  local
634 	xhci_dbg(xhci, "%s: stop port polling\n", __func__);  in xhci_mtk_suspend()
637 	clear_bit(HCD_FLAG_POLL_RH, &xhci->shared_hcd->flags);  in xhci_mtk_suspend()
638 	del_timer_sync(&xhci->shared_hcd->rh_timer);  in xhci_mtk_suspend()
650 	struct xhci_hcd *xhci = hcd_to_xhci(hcd);  in xhci_mtk_resume()  local
656 	xhci_dbg(xhci, "%s: restart port polling\n", __func__);  in xhci_mtk_resume()
657 	set_bit(HCD_FLAG_POLL_RH, &xhci->shared_hcd->flags);  in xhci_mtk_resume()
658 	usb_hcd_poll_rh_status(xhci->shared_hcd);  in xhci_mtk_resume()
671 	{ .compatible = "mediatek,mt8173-xhci"},
672 	{ .compatible = "mediatek,mtk-xhci"},
682 		.name = "xhci-mtk",
687 MODULE_ALIAS("platform:xhci-mtk");
703 MODULE_DESCRIPTION("MediaTek xHCI Host Controller Driver");