evie/android_kernel_oneplus_msm8998
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

Revert "usb: core: Remove helper APIs returning dcba dma address"

Browse source 
This reverts commit 039bcf340e.

Add back helper APIs to return dcba dma address.

Change-Id: Ia65e98691d1a3c241694f07215c12605832f574d
Signed-off-by: Ajay Agarwal <ajaya@codeaurora.org>
This commit is contained in:
Ajay Agarwal 2018-05-04 10:15:01 +05:30 • committed by Gerrit - the friendly Code Review server
parent ca3d15e44b
commit d2b0c86b23
4 changed files with 23 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

11
drivers/usb/core/hcd.c
View file

@ -2241,6 +2241,17 @@ usb_hcd_get_sec_event_ring_dma_addr(struct usb_device *udev,
return hcd->driver->get_sec_event_ring_dma_addr(hcd, intr_num);
}
dma_addr_t
usb_hcd_get_dcba_dma_addr(struct usb_device *udev)
{
struct usb_hcd *hcd = bus_to_hcd(udev->bus);
if (!HCD_RH_RUNNING(hcd))
return 0;
return hcd->driver->get_dcba_dma_addr(hcd, udev);
}
dma_addr_t
usb_hcd_get_xfer_ring_dma_addr(struct usb_device *udev,
struct usb_host_endpoint *ep)

10
drivers/usb/core/usb.c
View file

@ -697,6 +697,16 @@ usb_get_sec_event_ring_dma_addr(struct usb_device *dev,
}
EXPORT_SYMBOL(usb_get_sec_event_ring_dma_addr);
dma_addr_t
usb_get_dcba_dma_addr(struct usb_device *dev)
{
if (dev->state == USB_STATE_NOTATTACHED)
return 0;
return usb_hcd_get_dcba_dma_addr(dev);
}
EXPORT_SYMBOL(usb_get_dcba_dma_addr);
dma_addr_t usb_get_xfer_ring_dma_addr(struct usb_device *dev,
struct usb_host_endpoint *ep)
{

1
include/linux/usb.h
View file

@ -753,6 +753,7 @@ extern int usb_sec_event_ring_cleanup(struct usb_device *dev,
extern dma_addr_t
usb_get_sec_event_ring_dma_addr(struct usb_device *dev,
unsigned intr_num);
extern dma_addr_t usb_get_dcba_dma_addr(struct usb_device *dev);
extern dma_addr_t usb_get_xfer_ring_dma_addr(struct usb_device *dev,
struct usb_host_endpoint *ep);
extern int usb_get_controller_id(struct usb_device *dev);

1
include/linux/usb/hcd.h
View file

@ -451,6 +451,7 @@ extern int usb_hcd_sec_event_ring_cleanup(struct usb_device *udev,
extern dma_addr_t
usb_hcd_get_sec_event_ring_dma_addr(struct usb_device *udev,
unsigned intr_num);
extern dma_addr_t usb_hcd_get_dcba_dma_addr(struct usb_device *udev);
extern dma_addr_t
usb_hcd_get_xfer_ring_dma_addr(struct usb_device *udev,
struct usb_host_endpoint *ep);