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usb: host: xhci: make use of new usb_endpoint_maxp_mult() 

We have introduced a helper to calculate multiplier
value from wMaxPacketSize. Start using it.

Cc: Mathias Nyman <mathias.nyman@intel.com>
Cc: <linux-usb@vger.kernel.org>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
This commit is contained in:
Felipe Balbi 2016-09-28 13:39:22 +03:00
parent e3b89080f2
commit dcf5228c1c
1 changed files with 3 additions and 3 deletions
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6
drivers/usb/host/xhci-mem.c
View File

@ -1370,7 +1370,7 @@ static u32 xhci_get_endpoint_max_burst(struct usb_device *udev,
if (udev->speed == USB_SPEED_HIGH &&
(usb_endpoint_xfer_isoc(&ep->desc) ||
usb_endpoint_xfer_int(&ep->desc)))
return (usb_endpoint_maxp(&ep->desc) & 0x1800) >> 11;
return usb_endpoint_maxp_mult(&ep->desc) - 1;
return 0;
}
@ -1416,9 +1416,9 @@ static u32 xhci_get_max_esit_payload(struct usb_device *udev,
return le16_to_cpu(ep->ss_ep_comp.wBytesPerInterval);
max_packet = GET_MAX_PACKET(usb_endpoint_maxp(&ep->desc));
max_burst = (usb_endpoint_maxp(&ep->desc) & 0x1800) >> 11;
max_burst = usb_endpoint_maxp_mult(&ep->desc);
/* A 0 in max burst means 1 transfer per ESIT */
return max_packet * (max_burst + 1);
return max_packet * max_burst;
}
/* Set up an endpoint with one ring segment. Do not allocate stream rings.