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Commit f0cdec44 authored by Hemant Kumar's avatar Hemant Kumar
Browse files

usb: host: xhci: Add helper function to return controller id 



Function provides controller id used by a remote entity
to identify which usb controller to program to initiate
data transfer.

Change-Id: Ie700363c1a4a19aeb6b51305c97298f3b4d6e387
Signed-off-by: default avatarHemant Kumar <hemantk@codeaurora.org>
parent 3f55665e

drivers/usb/host/xhci.c

+8 −0
Original line number Diff line number Diff line
@@ -5019,6 +5019,13 @@ dma_addr_t xhci_get_xfer_ring_dma_addr(struct usb_hcd *hcd, 
	return 0;

}



int xhci_get_core_id(struct usb_hcd *hcd)

{

	struct xhci_hcd *xhci = hcd_to_xhci(hcd);



	return xhci->core_id;

}



static const struct hc_driver xhci_hc_driver = {

	.description =		"xhci-hcd",

	.product_desc =		"xHCI Host Controller",
@@ -5083,6 +5090,7 @@ static const struct hc_driver xhci_hc_driver = { 
	.get_sec_event_ring_dma_addr =	xhci_get_sec_event_ring_dma_addr,

	.get_xfer_ring_dma_addr =	xhci_get_xfer_ring_dma_addr,

	.get_dcba_dma_addr =		xhci_get_dcba_dma_addr,

	.get_core_id =			xhci_get_core_id,

};



void xhci_init_driver(struct hc_driver *drv,

drivers/usb/host/xhci.h

+1 −0
Original line number Diff line number Diff line
@@ -1979,6 +1979,7 @@ int xhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue, u16 wIndex, 
		char *buf, u16 wLength);

int xhci_hub_status_data(struct usb_hcd *hcd, char *buf);

int xhci_find_raw_port_number(struct usb_hcd *hcd, int port1);

int xhci_get_core_id(struct usb_hcd *hcd);



#ifdef CONFIG_PM

int xhci_bus_suspend(struct usb_hcd *hcd);