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usb: dwc2: host: enable descriptor dma for fs devices

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As descriptor dma mode does not support split transfers, it can't be
enabled for high speed devices. Add a core parameter to enable it for
full speed devices.

Ensure frame list and descriptor list are correctly freed during
disconnect.

Acked-by: John Youn <johnyoun@synopsys.com>
Signed-off-by: Mian Yousaf Kaukab <yousaf.kaukab@intel.com>
Signed-off-by: Gregory Herrero <gregory.herrero@intel.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
This commit is contained in:
Mian Yousaf Kaukab
2015-11-20 11:49:28 +01:00
committed by Felipe Balbi
parent 75f5c434c3
commit fbb9e22b15
6 changed files with 84 additions and 3 deletions
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2
drivers/usb/dwc2/hcd_queue.c
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@@ -232,7 +232,7 @@ struct dwc2_qh *dwc2_hcd_qh_create(struct dwc2_hsotg *hsotg,
*/
void dwc2_hcd_qh_free(struct dwc2_hsotg *hsotg, struct dwc2_qh *qh)
{
if (hsotg->core_params->dma_desc_enable > 0) {
if (qh->desc_list) {
dwc2_hcd_qh_free_ddma(hsotg, qh);
} else {
/* kfree(NULL) is safe */