usb: dwc2: Add dwc2_gadget_dec_frame_num_by_one() function

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Added dwc2_gadget_dec_frame_num_by_one() function in gadget.c.
This function will be used to calculate descriptor frame number field
value. For service interval mode frame number in descriptor should point
to last (u)frame in the interval.

Acked-by: Minas Harutyunyan <hminas@synopsys.com>
Signed-off-by: Grigor Tovmasyan <tovmasya@synopsys.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>

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Grigor Tovmasyan 2018-08-29 21:00:03 +04:00 • committed by Felipe Balbi

parent ca531bc2bf

commit 9d630b9cde

1 changed files with 18 additions and 0 deletions

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drivers/usb/dwc2/gadget.c

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