tree 2556e997876bc3e02f49bad8feb2a269103a5440
parent 9f8e443816976edd68f415ea25c0223ea921e88c
author John Youn <johnyoun@synopsys.com> 1248721503 -0700
committer Greg Kroah-Hartman <gregkh@suse.de> 1248816673 -0700

USB: xhci: Scratchpad buffer allocation

Allocates and initializes the scratchpad buffer array (XHCI 4.20).  This is an
array of 64-bit DMA addresses to scratch pages that the controller may use
during operation.  The number of pages is specified in the "Max Scratchpad
Buffers" field of HCSPARAMS2.  The DMA address of this array is written into
slot 0 of the DCBAA.

Signed-off-by: John Youn <johnyoun@synopsys.com>
Acked-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>