Ajay Kumar Gupta 3132122c66 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>
2012-08-03 09:34:39 +03:00
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