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drivers: udc_dwc2: Double fifo size for bulk endpoints #105631

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drivers: udc_dwc2: Double fifo size for bulk endpoints #105631

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5 changes: 5 additions & 0 deletions drivers/usb/udc/udc_dwc2.c
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Original file line number Diff line number Diff line change
Expand Up @@ -1399,6 +1399,11 @@ static int dwc2_set_dedicated_fifo(const struct device *dev,
reqdep *= (1 + addnl);
}

/* Allocate double fifo size for bulk endpoints to improve throughput */
if ((cfg->attributes & USB_EP_TRANSFER_TYPE_MASK) == USB_EP_TYPE_BULK) {
reqdep *= 2;
}

if (priv->dynfifosizing) {
if (priv->txf_set & ~BIT_MASK(ep_idx)) {
dwc2_unset_unused_fifo(dev);
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