Re: [RFC/PATCH 21/45] usb: gadget: udc: fusb300: make use of new usb_endpoint_maxp_mult()

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On Wed, Sep 28, 2016 at 04:05:30PM +0300, Felipe Balbi wrote:
> We have introduced a helper to calculate multiplier
> value from wMaxPacketSize. Start using it.
> 
> Signed-off-by: Felipe Balbi <felipe.balbi@xxxxxxxxxxxxxxx>
> ---
>  drivers/usb/gadget/udc/fusb300_udc.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/usb/gadget/udc/fusb300_udc.c b/drivers/usb/gadget/udc/fusb300_udc.c
> index 948845c90e47..42ff308578df 100644
> --- a/drivers/usb/gadget/udc/fusb300_udc.c
> +++ b/drivers/usb/gadget/udc/fusb300_udc.c
> @@ -218,7 +218,7 @@ static int config_ep(struct fusb300_ep *ep,
>  	   (info.type == USB_ENDPOINT_XFER_ISOC)) {
>  		info.interval = desc->bInterval;
>  		if (info.type == USB_ENDPOINT_XFER_ISOC)
> -			info.bw_num = ((desc->wMaxPacketSize & 0x1800) >> 11);
> +			info.bw_num = usb_endpoint_maxp_mult(desc);

In the original code, bw_num is 0 based, now the new code makes it 1
based.

Regards,
-Bin.

>  	}
>  
>  	ep_fifo_setting(fusb300, info);
> -- 
> 2.10.0.440.g21f862b
> 
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