From: Roger Quadros <rogerq@ti.com>
Date: Tue, 7 Aug 2012 13:09:56 +0000 (+0300)
Subject: usb: musb: use DMA mode 1 whenever possible
X-Git-Tag: omap-for-v3.7-rc1/fixes-cpufreq-signed~73^2~138^2~17
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=4f3e8d263d34e52e75b5adfa14811467d3033d8e;p=pandora-kernel.git

usb: musb: use DMA mode 1 whenever possible

Do not rely on any hints from gadget drivers and use DMA mode 1
whenever we expect data of at least the endpoint's packet size and
have not yet received a short packet.

The last packet if short is always transferred using DMA mode 0.

This patch fixes USB throughput issues in mass storage mode for
host to device transfers.

Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
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