tree 9e10ae98b352461936fb9dbf4e7c47a9a8c3fa8a
parent f0443afd1d82b07305df1511a6055311047fdfc6
author Ajay Kumar Gupta <ajay.gupta@ti.com> 1342762642 +0530
committer Felipe Balbi <balbi@ti.com> 1343975679 +0300

usb: musb: host: don't program dma for zero byte tx

This is to reduce the overhead of dma programming for zero byte
transmit as same can be done using pio mode.

Signed-off-by: Ajay Kumar Gupta <ajay.gupta@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>