usb: dwc2: gadget: Transfer length limit checking for DDMA

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Add dwc2_gadget_get_chain_limit() function and its call in transfer
start routine to correctly estimate one go on transfer size if
descriptor DMA mode is selected.

Signed-off-by: Vahram Aharonyan <vahrama@synopsys.com>
Signed-off-by: John Youn <johnyoun@synopsys.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>

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Vahram Aharonyan 2016-11-09 19:28:01 -08:00 • committed by Felipe Balbi

parent 3a1ec35160

commit cf77b5fb9b

1 changed files with 31 additions and 1 deletions

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drivers/usb/dwc2/gadget.c

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