51 static inline void dwc2_set_bit(struct dwc2_hsotg *hsotg, u32 offset, u32 val)  in dwc2_set_bit()  argument
53 	dwc2_writel(hsotg, dwc2_readl(hsotg, offset) | val, offset);  in dwc2_set_bit()
56 static inline void dwc2_clear_bit(struct dwc2_hsotg *hsotg, u32 offset, u32 val)  in dwc2_clear_bit()  argument
58 	dwc2_writel(hsotg, dwc2_readl(hsotg, offset) & ~val, offset);  in dwc2_clear_bit()
61 static inline struct dwc2_hsotg_ep *index_to_ep(struct dwc2_hsotg *hsotg,  in index_to_ep()  argument
65 		return hsotg->eps_in[ep_index];  in index_to_ep()
67 		return hsotg->eps_out[ep_index];  in index_to_ep()
71 static void dwc2_hsotg_dump(struct dwc2_hsotg *hsotg);
92 static inline bool using_dma(struct dwc2_hsotg *hsotg)  in using_dma()  argument
94 	return hsotg->params.g_dma;  in using_dma()
103 static inline bool using_desc_dma(struct dwc2_hsotg *hsotg)  in using_desc_dma()  argument
105 	return hsotg->params.g_dma_desc;  in using_desc_dma()
117 	struct dwc2_hsotg *hsotg = hs_ep->parent;  in dwc2_gadget_incr_frame_num()  local
120 	if (hsotg->gadget.speed != USB_SPEED_HIGH)  in dwc2_gadget_incr_frame_num()
144 	struct dwc2_hsotg *hsotg = hs_ep->parent;  in dwc2_gadget_dec_frame_num_by_one()  local
147 	if (hsotg->gadget.speed != USB_SPEED_HIGH)  in dwc2_gadget_dec_frame_num_by_one()
161 static void dwc2_hsotg_en_gsint(struct dwc2_hsotg *hsotg, u32 ints)  in dwc2_hsotg_en_gsint()  argument
163 	u32 gsintmsk = dwc2_readl(hsotg, GINTMSK);  in dwc2_hsotg_en_gsint()
169 		dev_dbg(hsotg->dev, "gsintmsk now 0x%08x\n", new_gsintmsk);  in dwc2_hsotg_en_gsint()
170 		dwc2_writel(hsotg, new_gsintmsk, GINTMSK);  in dwc2_hsotg_en_gsint()
179 static void dwc2_hsotg_disable_gsint(struct dwc2_hsotg *hsotg, u32 ints)  in dwc2_hsotg_disable_gsint()  argument
181 	u32 gsintmsk = dwc2_readl(hsotg, GINTMSK);  in dwc2_hsotg_disable_gsint()
187 		dwc2_writel(hsotg, new_gsintmsk, GINTMSK);  in dwc2_hsotg_disable_gsint()
200 static void dwc2_hsotg_ctrl_epint(struct dwc2_hsotg *hsotg,  in dwc2_hsotg_ctrl_epint()  argument
212 	daint = dwc2_readl(hsotg, DAINTMSK);  in dwc2_hsotg_ctrl_epint()
217 	dwc2_writel(hsotg, daint, DAINTMSK);  in dwc2_hsotg_ctrl_epint()
226 int dwc2_hsotg_tx_fifo_count(struct dwc2_hsotg *hsotg)  in dwc2_hsotg_tx_fifo_count()  argument
228 	if (hsotg->hw_params.en_multiple_tx_fifo)  in dwc2_hsotg_tx_fifo_count()
230 		return hsotg->hw_params.num_dev_in_eps;  in dwc2_hsotg_tx_fifo_count()
233 		return hsotg->hw_params.num_dev_perio_in_ep;  in dwc2_hsotg_tx_fifo_count()
242 int dwc2_hsotg_tx_fifo_total_depth(struct dwc2_hsotg *hsotg)  in dwc2_hsotg_tx_fifo_total_depth()  argument
248 	np_tx_fifo_size = min_t(u32, hsotg->hw_params.dev_nperio_tx_fifo_size,  in dwc2_hsotg_tx_fifo_total_depth()
249 				hsotg->params.g_np_tx_fifo_size);  in dwc2_hsotg_tx_fifo_total_depth()
252 	tx_addr_max = hsotg->hw_params.total_fifo_size;  in dwc2_hsotg_tx_fifo_total_depth()
254 	addr = hsotg->params.g_rx_fifo_size + np_tx_fifo_size;  in dwc2_hsotg_tx_fifo_total_depth()
267 static void dwc2_gadget_wkup_alert_handler(struct dwc2_hsotg *hsotg)  in dwc2_gadget_wkup_alert_handler()  argument
272 	gintsts2 = dwc2_readl(hsotg, GINTSTS2);  in dwc2_gadget_wkup_alert_handler()
273 	gintmsk2 = dwc2_readl(hsotg, GINTMSK2);  in dwc2_gadget_wkup_alert_handler()
277 		dev_dbg(hsotg->dev, "%s: Wkup_Alert_Int\n", __func__);  in dwc2_gadget_wkup_alert_handler()
278 		dwc2_set_bit(hsotg, GINTSTS2, GINTSTS2_WKUP_ALERT_INT);  in dwc2_gadget_wkup_alert_handler()
279 		dwc2_set_bit(hsotg, DCTL, DCTL_RMTWKUPSIG);  in dwc2_gadget_wkup_alert_handler()
289 int dwc2_hsotg_tx_fifo_average_depth(struct dwc2_hsotg *hsotg)  in dwc2_hsotg_tx_fifo_average_depth()  argument
294 	tx_fifo_depth = dwc2_hsotg_tx_fifo_total_depth(hsotg);  in dwc2_hsotg_tx_fifo_average_depth()
296 	tx_fifo_count = dwc2_hsotg_tx_fifo_count(hsotg);  in dwc2_hsotg_tx_fifo_average_depth()
308 static void dwc2_hsotg_init_fifo(struct dwc2_hsotg *hsotg)  in dwc2_hsotg_init_fifo()  argument
315 	u32 *txfsz = hsotg->params.g_tx_fifo_size;  in dwc2_hsotg_init_fifo()
318 	WARN_ON(hsotg->fifo_map);  in dwc2_hsotg_init_fifo()
319 	hsotg->fifo_map = 0;  in dwc2_hsotg_init_fifo()
322 	dwc2_writel(hsotg, hsotg->params.g_rx_fifo_size, GRXFSIZ);  in dwc2_hsotg_init_fifo()
323 	dwc2_writel(hsotg, (hsotg->params.g_rx_fifo_size <<  in dwc2_hsotg_init_fifo()
325 		    (hsotg->params.g_np_tx_fifo_size << FIFOSIZE_DEPTH_SHIFT),  in dwc2_hsotg_init_fifo()
336 	addr = hsotg->params.g_rx_fifo_size + hsotg->params.g_np_tx_fifo_size;  in dwc2_hsotg_init_fifo()
348 		WARN_ONCE(addr + txfsz[ep] > hsotg->fifo_mem,  in dwc2_hsotg_init_fifo()
352 		dwc2_writel(hsotg, val, DPTXFSIZN(ep));  in dwc2_hsotg_init_fifo()
353 		val = dwc2_readl(hsotg, DPTXFSIZN(ep));  in dwc2_hsotg_init_fifo()
356 	dwc2_writel(hsotg, hsotg->hw_params.total_fifo_size |  in dwc2_hsotg_init_fifo()
364 	dwc2_writel(hsotg, GRSTCTL_TXFNUM(0x10) | GRSTCTL_TXFFLSH |  in dwc2_hsotg_init_fifo()
370 		val = dwc2_readl(hsotg, GRSTCTL);  in dwc2_hsotg_init_fifo()
376 			dev_err(hsotg->dev,  in dwc2_hsotg_init_fifo()
385 	dev_dbg(hsotg->dev, "FIFOs reset, timeout at %d\n", timeout);  in dwc2_hsotg_init_fifo()
430 static void dwc2_hsotg_unmap_dma(struct dwc2_hsotg *hsotg,  in dwc2_hsotg_unmap_dma()  argument
436 	usb_gadget_unmap_request(&hsotg->gadget, req, hs_ep->map_dir);  in dwc2_hsotg_unmap_dma()
447 static int dwc2_gadget_alloc_ctrl_desc_chains(struct dwc2_hsotg *hsotg)  in dwc2_gadget_alloc_ctrl_desc_chains()  argument
449 	hsotg->setup_desc[0] =  in dwc2_gadget_alloc_ctrl_desc_chains()
450 		dmam_alloc_coherent(hsotg->dev,  in dwc2_gadget_alloc_ctrl_desc_chains()
452 				    &hsotg->setup_desc_dma[0],  in dwc2_gadget_alloc_ctrl_desc_chains()
454 	if (!hsotg->setup_desc[0])  in dwc2_gadget_alloc_ctrl_desc_chains()
457 	hsotg->setup_desc[1] =  in dwc2_gadget_alloc_ctrl_desc_chains()
458 		dmam_alloc_coherent(hsotg->dev,  in dwc2_gadget_alloc_ctrl_desc_chains()
460 				    &hsotg->setup_desc_dma[1],  in dwc2_gadget_alloc_ctrl_desc_chains()
462 	if (!hsotg->setup_desc[1])  in dwc2_gadget_alloc_ctrl_desc_chains()
465 	hsotg->ctrl_in_desc =  in dwc2_gadget_alloc_ctrl_desc_chains()
466 		dmam_alloc_coherent(hsotg->dev,  in dwc2_gadget_alloc_ctrl_desc_chains()
468 				    &hsotg->ctrl_in_desc_dma,  in dwc2_gadget_alloc_ctrl_desc_chains()
470 	if (!hsotg->ctrl_in_desc)  in dwc2_gadget_alloc_ctrl_desc_chains()
473 	hsotg->ctrl_out_desc =  in dwc2_gadget_alloc_ctrl_desc_chains()
474 		dmam_alloc_coherent(hsotg->dev,  in dwc2_gadget_alloc_ctrl_desc_chains()
476 				    &hsotg->ctrl_out_desc_dma,  in dwc2_gadget_alloc_ctrl_desc_chains()
478 	if (!hsotg->ctrl_out_desc)  in dwc2_gadget_alloc_ctrl_desc_chains()
503 static int dwc2_hsotg_write_fifo(struct dwc2_hsotg *hsotg,  in dwc2_hsotg_write_fifo()  argument
508 	u32 gnptxsts = dwc2_readl(hsotg, GNPTXSTS);  in dwc2_hsotg_write_fifo()
522 	if (periodic && !hsotg->dedicated_fifos) {  in dwc2_hsotg_write_fifo()
523 		u32 epsize = dwc2_readl(hsotg, DIEPTSIZ(hs_ep->index));  in dwc2_hsotg_write_fifo()
539 			dwc2_hsotg_en_gsint(hsotg, GINTSTS_PTXFEMP);  in dwc2_hsotg_write_fifo()
543 		dev_dbg(hsotg->dev, "%s: left=%d, load=%d, fifo=%d, size %d\n",  in dwc2_hsotg_write_fifo()
552 		dev_dbg(hsotg->dev, "%s: => can_write1=%d\n",  in dwc2_hsotg_write_fifo()
556 		dev_dbg(hsotg->dev, "%s: => can_write2=%d\n",  in dwc2_hsotg_write_fifo()
560 			dwc2_hsotg_en_gsint(hsotg, GINTSTS_PTXFEMP);  in dwc2_hsotg_write_fifo()
563 	} else if (hsotg->dedicated_fifos && hs_ep->index != 0) {  in dwc2_hsotg_write_fifo()
564 		can_write = dwc2_readl(hsotg,  in dwc2_hsotg_write_fifo()
571 			dev_dbg(hsotg->dev,  in dwc2_hsotg_write_fifo()
575 			dwc2_hsotg_en_gsint(hsotg, GINTSTS_NPTXFEMP);  in dwc2_hsotg_write_fifo()
585 	dev_dbg(hsotg->dev, "%s: GNPTXSTS=%08x, can=%d, to=%d, max_transfer %d\n",  in dwc2_hsotg_write_fifo()
605 		if (!hsotg->dedicated_fifos)  in dwc2_hsotg_write_fifo()
606 			dwc2_hsotg_en_gsint(hsotg,  in dwc2_hsotg_write_fifo()
634 		if (!hsotg->dedicated_fifos)  in dwc2_hsotg_write_fifo()
635 			dwc2_hsotg_en_gsint(hsotg,  in dwc2_hsotg_write_fifo()
640 	dev_dbg(hsotg->dev, "write %d/%d, can_write %d, done %d\n",  in dwc2_hsotg_write_fifo()
655 	dwc2_writel_rep(hsotg, EPFIFO(hs_ep->index), data, to_write);  in dwc2_hsotg_write_fifo()
705 static u32 dwc2_hsotg_read_frameno(struct dwc2_hsotg *hsotg)  in dwc2_hsotg_read_frameno()  argument
709 	dsts = dwc2_readl(hsotg, DSTS);  in dwc2_hsotg_read_frameno()
913 	struct dwc2_hsotg *hsotg = hs_ep->parent;  in dwc2_gadget_fill_isoc_desc()  local
926 		dev_dbg(hsotg->dev, "%s: desc chain full\n", __func__);  in dwc2_gadget_fill_isoc_desc()
934 	dev_dbg(hsotg->dev, "%s: Filling ep %d, dir %s isoc desc # %d\n",  in dwc2_gadget_fill_isoc_desc()
982 	struct dwc2_hsotg *hsotg = hs_ep->parent;  in dwc2_gadget_start_isoc_ddma()  local
994 		dev_dbg(hsotg->dev, "%s: No requests in queue\n", __func__);  in dwc2_gadget_start_isoc_ddma()
1025 	dwc2_writel(hsotg, hs_ep->desc_list_dma, dma_reg);  in dwc2_gadget_start_isoc_ddma()
1027 	ctrl = dwc2_readl(hsotg, depctl);  in dwc2_gadget_start_isoc_ddma()
1029 	dwc2_writel(hsotg, ctrl, depctl);  in dwc2_gadget_start_isoc_ddma()
1033 static void dwc2_hsotg_complete_request(struct dwc2_hsotg *hsotg,
1048 static void dwc2_hsotg_start_req(struct dwc2_hsotg *hsotg,  in dwc2_hsotg_start_req()  argument
1067 			dev_err(hsotg->dev, "%s: active request\n", __func__);  in dwc2_hsotg_start_req()
1071 			dev_err(hsotg->dev,  in dwc2_hsotg_start_req()
1082 	dev_dbg(hsotg->dev, "%s: DxEPCTL=0x%08x, ep %d, dir %s\n",  in dwc2_hsotg_start_req()
1083 		__func__, dwc2_readl(hsotg, epctrl_reg), index,  in dwc2_hsotg_start_req()
1087 	ctrl = dwc2_readl(hsotg, epctrl_reg);  in dwc2_hsotg_start_req()
1090 		dev_warn(hsotg->dev, "%s: ep%d is stalled\n", __func__, index);  in dwc2_hsotg_start_req()
1095 	dev_dbg(hsotg->dev, "ureq->length:%d ureq->actual:%d\n",  in dwc2_hsotg_start_req()
1098 	if (!using_desc_dma(hsotg))  in dwc2_hsotg_start_req()
1106 		dev_dbg(hsotg->dev, "%s: length %d, max-req %d, r %d\n",  in dwc2_hsotg_start_req()
1143 	dev_dbg(hsotg->dev, "%s: %d@%d/%d, 0x%08x => 0x%08x\n",  in dwc2_hsotg_start_req()
1149 	if (using_desc_dma(hsotg)) {  in dwc2_hsotg_start_req()
1169 		dwc2_writel(hsotg, hs_ep->desc_list_dma, dma_reg);  in dwc2_hsotg_start_req()
1171 		dev_dbg(hsotg->dev, "%s: %08x pad => 0x%08x\n",  in dwc2_hsotg_start_req()
1175 		dwc2_writel(hsotg, epsize, epsize_reg);  in dwc2_hsotg_start_req()
1177 		if (using_dma(hsotg) && !continuing && (length != 0)) {  in dwc2_hsotg_start_req()
1183 			dwc2_writel(hsotg, ureq->dma, dma_reg);  in dwc2_hsotg_start_req()
1185 			dev_dbg(hsotg->dev, "%s: %pad => 0x%08x\n",  in dwc2_hsotg_start_req()
1202 			dwc2_hsotg_complete_request(hsotg, hs_ep, hs_req, -ENODATA);  in dwc2_hsotg_start_req()
1209 	dev_dbg(hsotg->dev, "ep0 state:%d\n", hsotg->ep0_state);  in dwc2_hsotg_start_req()
1212 	if (!(index == 0 && hsotg->ep0_state == DWC2_EP0_SETUP))  in dwc2_hsotg_start_req()
1215 	dev_dbg(hsotg->dev, "%s: DxEPCTL=0x%08x\n", __func__, ctrl);  in dwc2_hsotg_start_req()
1216 	dwc2_writel(hsotg, ctrl, epctrl_reg);  in dwc2_hsotg_start_req()
1226 	if (dir_in && !using_dma(hsotg)) {  in dwc2_hsotg_start_req()
1230 		dwc2_hsotg_write_fifo(hsotg, hs_ep, hs_req);  in dwc2_hsotg_start_req()
1239 	if (!(dwc2_readl(hsotg, epctrl_reg) & DXEPCTL_EPENA))  in dwc2_hsotg_start_req()
1240 		dev_dbg(hsotg->dev,  in dwc2_hsotg_start_req()
1242 			 index, dwc2_readl(hsotg, epctrl_reg));  in dwc2_hsotg_start_req()
1244 	dev_dbg(hsotg->dev, "%s: DXEPCTL=0x%08x\n",  in dwc2_hsotg_start_req()
1245 		__func__, dwc2_readl(hsotg, epctrl_reg));  in dwc2_hsotg_start_req()
1248 	dwc2_hsotg_ctrl_epint(hsotg, hs_ep->index, hs_ep->dir_in, 1);  in dwc2_hsotg_start_req()
1263 static int dwc2_hsotg_map_dma(struct dwc2_hsotg *hsotg,  in dwc2_hsotg_map_dma()  argument
1270 	ret = usb_gadget_map_request(&hsotg->gadget, req, hs_ep->dir_in);  in dwc2_hsotg_map_dma()
1277 	dev_err(hsotg->dev, "%s: failed to map buffer %p, %d bytes\n",  in dwc2_hsotg_map_dma()
1283 static int dwc2_hsotg_handle_unaligned_buf_start(struct dwc2_hsotg *hsotg,  in dwc2_hsotg_handle_unaligned_buf_start()  argument
1290 	if (!using_dma(hsotg) || !((long)req_buf & 3))  in dwc2_hsotg_handle_unaligned_buf_start()
1295 	dev_dbg(hsotg->dev, "%s: %s: buf=%p length=%d\n", __func__,  in dwc2_hsotg_handle_unaligned_buf_start()
1301 		dev_err(hsotg->dev,  in dwc2_hsotg_handle_unaligned_buf_start()
1316 dwc2_hsotg_handle_unaligned_buf_complete(struct dwc2_hsotg *hsotg,  in dwc2_hsotg_handle_unaligned_buf_complete()  argument
1321 	if (!using_dma(hsotg) || !hs_req->saved_req_buf)  in dwc2_hsotg_handle_unaligned_buf_complete()
1324 	dev_dbg(hsotg->dev, "%s: %s: status=%d actual-length=%d\n", __func__,  in dwc2_hsotg_handle_unaligned_buf_complete()
1348 	struct dwc2_hsotg *hsotg = hs_ep->parent;  in dwc2_gadget_target_frame_elapsed()  local
1350 	u32 current_frame = hsotg->frame_number;  in dwc2_gadget_target_frame_elapsed()
1354 	if (hsotg->gadget.speed != USB_SPEED_HIGH)  in dwc2_gadget_target_frame_elapsed()
1375 static int dwc2_gadget_set_ep0_desc_chain(struct dwc2_hsotg *hsotg,  in dwc2_gadget_set_ep0_desc_chain()  argument
1378 	switch (hsotg->ep0_state) {  in dwc2_gadget_set_ep0_desc_chain()
1381 		hs_ep->desc_list = hsotg->setup_desc[0];  in dwc2_gadget_set_ep0_desc_chain()
1382 		hs_ep->desc_list_dma = hsotg->setup_desc_dma[0];  in dwc2_gadget_set_ep0_desc_chain()
1386 		hs_ep->desc_list = hsotg->ctrl_in_desc;  in dwc2_gadget_set_ep0_desc_chain()
1387 		hs_ep->desc_list_dma = hsotg->ctrl_in_desc_dma;  in dwc2_gadget_set_ep0_desc_chain()
1390 		hs_ep->desc_list = hsotg->ctrl_out_desc;  in dwc2_gadget_set_ep0_desc_chain()
1391 		hs_ep->desc_list_dma = hsotg->ctrl_out_desc_dma;  in dwc2_gadget_set_ep0_desc_chain()
1394 		dev_err(hsotg->dev, "invalid EP 0 state in queue %d\n",  in dwc2_gadget_set_ep0_desc_chain()
1395 			hsotg->ep0_state);  in dwc2_gadget_set_ep0_desc_chain()
1561 	struct dwc2_hsotg *hsotg = hs_ep->parent;  in dwc2_hsotg_complete_oursetup()  local
1563 	dev_dbg(hsotg->dev, "%s: ep %p, req %p\n", __func__, ep, req);  in dwc2_hsotg_complete_oursetup()
1576 static struct dwc2_hsotg_ep *ep_from_windex(struct dwc2_hsotg *hsotg,  in ep_from_windex()  argument
1585 	if (idx > hsotg->num_of_eps)  in ep_from_windex()
1588 	return index_to_ep(hsotg, idx, dir);  in ep_from_windex()
1597 int dwc2_hsotg_set_test_mode(struct dwc2_hsotg *hsotg, int testmode)  in dwc2_hsotg_set_test_mode()  argument
1599 	int dctl = dwc2_readl(hsotg, DCTL);  in dwc2_hsotg_set_test_mode()
1613 	dwc2_writel(hsotg, dctl, DCTL);  in dwc2_hsotg_set_test_mode()
1627 static int dwc2_hsotg_send_reply(struct dwc2_hsotg *hsotg,  in dwc2_hsotg_send_reply()  argument
1635 	dev_dbg(hsotg->dev, "%s: buff %p, len %d\n", __func__, buff, length);  in dwc2_hsotg_send_reply()
1638 	hsotg->ep0_reply = req;  in dwc2_hsotg_send_reply()
1640 		dev_warn(hsotg->dev, "%s: cannot alloc req\n", __func__);  in dwc2_hsotg_send_reply()
1644 	req->buf = hsotg->ep0_buff;  in dwc2_hsotg_send_reply()
1658 		dev_warn(hsotg->dev, "%s: cannot queue req\n", __func__);  in dwc2_hsotg_send_reply()
1670 static int dwc2_hsotg_process_req_status(struct dwc2_hsotg *hsotg,  in dwc2_hsotg_process_req_status()  argument
1673 	struct dwc2_hsotg_ep *ep0 = hsotg->eps_out[0];  in dwc2_hsotg_process_req_status()
1679 	dev_dbg(hsotg->dev, "%s: USB_REQ_GET_STATUS\n", __func__);  in dwc2_hsotg_process_req_status()
1682 		dev_warn(hsotg->dev, "%s: direction out?\n", __func__);  in dwc2_hsotg_process_req_status()
1688 		status = hsotg->gadget.is_selfpowered <<  in dwc2_hsotg_process_req_status()
1690 		status |= hsotg->remote_wakeup_allowed <<  in dwc2_hsotg_process_req_status()
1701 		ep = ep_from_windex(hsotg, le16_to_cpu(ctrl->wIndex));  in dwc2_hsotg_process_req_status()
1715 	ret = dwc2_hsotg_send_reply(hsotg, ep0, &reply, 2);  in dwc2_hsotg_process_req_status()
1717 		dev_err(hsotg->dev, "%s: failed to send reply\n", __func__);  in dwc2_hsotg_process_req_status()
1748 	struct dwc2_hsotg *hsotg = hs_ep->parent;  in dwc2_gadget_start_next_request()  local
1754 		dwc2_hsotg_start_req(hsotg, hs_ep, hs_req, false);  in dwc2_gadget_start_next_request()
1761 		dev_dbg(hsotg->dev, "%s: No more ISOC-IN requests\n",  in dwc2_gadget_start_next_request()
1764 		dev_dbg(hsotg->dev, "%s: No more ISOC-OUT requests\n",  in dwc2_gadget_start_next_request()
1774 static int dwc2_hsotg_process_req_feature(struct dwc2_hsotg *hsotg,  in dwc2_hsotg_process_req_feature()  argument
1777 	struct dwc2_hsotg_ep *ep0 = hsotg->eps_out[0];  in dwc2_hsotg_process_req_feature()
1787 	dev_dbg(hsotg->dev, "%s: %s_FEATURE\n",  in dwc2_hsotg_process_req_feature()
1799 				hsotg->remote_wakeup_allowed = 1;  in dwc2_hsotg_process_req_feature()
1801 				hsotg->remote_wakeup_allowed = 0;  in dwc2_hsotg_process_req_feature()
1810 			hsotg->test_mode = wIndex >> 8;  in dwc2_hsotg_process_req_feature()
1816 		ret = dwc2_hsotg_send_reply(hsotg, ep0, NULL, 0);  in dwc2_hsotg_process_req_feature()
1818 			dev_err(hsotg->dev,  in dwc2_hsotg_process_req_feature()
1825 		ep = ep_from_windex(hsotg, wIndex);  in dwc2_hsotg_process_req_feature()
1827 			dev_dbg(hsotg->dev, "%s: no endpoint for 0x%04x\n",  in dwc2_hsotg_process_req_feature()
1839 			ret = dwc2_hsotg_send_reply(hsotg, ep0, NULL, 0);  in dwc2_hsotg_process_req_feature()
1841 				dev_err(hsotg->dev,  in dwc2_hsotg_process_req_feature()
1861 						spin_unlock(&hsotg->lock);  in dwc2_hsotg_process_req_feature()
1864 						spin_lock(&hsotg->lock);  in dwc2_hsotg_process_req_feature()
1885 static void dwc2_hsotg_enqueue_setup(struct dwc2_hsotg *hsotg);
1893 static void dwc2_hsotg_stall_ep0(struct dwc2_hsotg *hsotg)  in dwc2_hsotg_stall_ep0()  argument
1895 	struct dwc2_hsotg_ep *ep0 = hsotg->eps_out[0];  in dwc2_hsotg_stall_ep0()
1899 	dev_dbg(hsotg->dev, "ep0 stall (dir=%d)\n", ep0->dir_in);  in dwc2_hsotg_stall_ep0()
1907 	ctrl = dwc2_readl(hsotg, reg);  in dwc2_hsotg_stall_ep0()
1910 	dwc2_writel(hsotg, ctrl, reg);  in dwc2_hsotg_stall_ep0()
1912 	dev_dbg(hsotg->dev,  in dwc2_hsotg_stall_ep0()
1914 		ctrl, reg, dwc2_readl(hsotg, reg));  in dwc2_hsotg_stall_ep0()
1920 	 dwc2_hsotg_enqueue_setup(hsotg);  in dwc2_hsotg_stall_ep0()
1932 static void dwc2_hsotg_process_control(struct dwc2_hsotg *hsotg,  in dwc2_hsotg_process_control()  argument
1935 	struct dwc2_hsotg_ep *ep0 = hsotg->eps_out[0];  in dwc2_hsotg_process_control()
1939 	dev_dbg(hsotg->dev,  in dwc2_hsotg_process_control()
1946 		hsotg->ep0_state = DWC2_EP0_STATUS_IN;  in dwc2_hsotg_process_control()
1949 		hsotg->ep0_state = DWC2_EP0_DATA_IN;  in dwc2_hsotg_process_control()
1952 		hsotg->ep0_state = DWC2_EP0_DATA_OUT;  in dwc2_hsotg_process_control()
1958 			hsotg->connected = 1;  in dwc2_hsotg_process_control()
1959 			dcfg = dwc2_readl(hsotg, DCFG);  in dwc2_hsotg_process_control()
1963 			dwc2_writel(hsotg, dcfg, DCFG);  in dwc2_hsotg_process_control()
1965 			dev_info(hsotg->dev, "new address %d\n", ctrl->wValue);  in dwc2_hsotg_process_control()
1967 			ret = dwc2_hsotg_send_reply(hsotg, ep0, NULL, 0);  in dwc2_hsotg_process_control()
1971 			ret = dwc2_hsotg_process_req_status(hsotg, ctrl);  in dwc2_hsotg_process_control()
1976 			ret = dwc2_hsotg_process_req_feature(hsotg, ctrl);  in dwc2_hsotg_process_control()
1983 	if (ret == 0 && hsotg->driver) {  in dwc2_hsotg_process_control()
1984 		spin_unlock(&hsotg->lock);  in dwc2_hsotg_process_control()
1985 		ret = hsotg->driver->setup(&hsotg->gadget, ctrl);  in dwc2_hsotg_process_control()
1986 		spin_lock(&hsotg->lock);  in dwc2_hsotg_process_control()
1988 			dev_dbg(hsotg->dev, "driver->setup() ret %d\n", ret);  in dwc2_hsotg_process_control()
1991 	hsotg->delayed_status = false;  in dwc2_hsotg_process_control()
1993 		hsotg->delayed_status = true;  in dwc2_hsotg_process_control()
2001 		dwc2_hsotg_stall_ep0(hsotg);  in dwc2_hsotg_process_control()
2016 	struct dwc2_hsotg *hsotg = hs_ep->parent;  in dwc2_hsotg_complete_setup()  local
2019 		dev_dbg(hsotg->dev, "%s: failed %d\n", __func__, req->status);  in dwc2_hsotg_complete_setup()
2023 	spin_lock(&hsotg->lock);  in dwc2_hsotg_complete_setup()
2025 		dwc2_hsotg_enqueue_setup(hsotg);  in dwc2_hsotg_complete_setup()
2027 		dwc2_hsotg_process_control(hsotg, req->buf);  in dwc2_hsotg_complete_setup()
2028 	spin_unlock(&hsotg->lock);  in dwc2_hsotg_complete_setup()
2038 static void dwc2_hsotg_enqueue_setup(struct dwc2_hsotg *hsotg)  in dwc2_hsotg_enqueue_setup()  argument
2040 	struct usb_request *req = hsotg->ctrl_req;  in dwc2_hsotg_enqueue_setup()
2044 	dev_dbg(hsotg->dev, "%s: queueing setup request\n", __func__);  in dwc2_hsotg_enqueue_setup()
2048 	req->buf = hsotg->ctrl_buff;  in dwc2_hsotg_enqueue_setup()
2052 		dev_dbg(hsotg->dev, "%s already queued???\n", __func__);  in dwc2_hsotg_enqueue_setup()
2056 	hsotg->eps_out[0]->dir_in = 0;  in dwc2_hsotg_enqueue_setup()
2057 	hsotg->eps_out[0]->send_zlp = 0;  in dwc2_hsotg_enqueue_setup()
2058 	hsotg->ep0_state = DWC2_EP0_SETUP;  in dwc2_hsotg_enqueue_setup()
2060 	ret = dwc2_hsotg_ep_queue(&hsotg->eps_out[0]->ep, req, GFP_ATOMIC);  in dwc2_hsotg_enqueue_setup()
2062 		dev_err(hsotg->dev, "%s: failed queue (%d)\n", __func__, ret);  in dwc2_hsotg_enqueue_setup()
2070 static void dwc2_hsotg_program_zlp(struct dwc2_hsotg *hsotg,  in dwc2_hsotg_program_zlp()  argument
2079 		dev_dbg(hsotg->dev, "Sending zero-length packet on ep%d\n",  in dwc2_hsotg_program_zlp()
2082 		dev_dbg(hsotg->dev, "Receiving zero-length packet on ep%d\n",  in dwc2_hsotg_program_zlp()
2084 	if (using_desc_dma(hsotg)) {  in dwc2_hsotg_program_zlp()
2089 			dwc2_gadget_set_ep0_desc_chain(hsotg, hs_ep);  in dwc2_hsotg_program_zlp()
2093 		dwc2_writel(hsotg, DXEPTSIZ_MC(1) | DXEPTSIZ_PKTCNT(1) |  in dwc2_hsotg_program_zlp()
2098 	ctrl = dwc2_readl(hsotg, epctl_reg);  in dwc2_hsotg_program_zlp()
2102 	dwc2_writel(hsotg, ctrl, epctl_reg);  in dwc2_hsotg_program_zlp()
2118 static void dwc2_hsotg_complete_request(struct dwc2_hsotg *hsotg,  in dwc2_hsotg_complete_request()  argument
2124 		dev_dbg(hsotg->dev, "%s: nothing to complete?\n", __func__);  in dwc2_hsotg_complete_request()
2128 	dev_dbg(hsotg->dev, "complete: ep %p %s, req %p, %d => %p\n",  in dwc2_hsotg_complete_request()
2139 	if (using_dma(hsotg))  in dwc2_hsotg_complete_request()
2140 		dwc2_hsotg_unmap_dma(hsotg, hs_ep, hs_req);  in dwc2_hsotg_complete_request()
2142 	dwc2_hsotg_handle_unaligned_buf_complete(hsotg, hs_ep, hs_req);  in dwc2_hsotg_complete_request()
2153 		spin_unlock(&hsotg->lock);  in dwc2_hsotg_complete_request()
2155 		spin_lock(&hsotg->lock);  in dwc2_hsotg_complete_request()
2159 	if (using_desc_dma(hsotg) && hs_ep->isochronous)  in dwc2_hsotg_complete_request()
2183 	struct dwc2_hsotg *hsotg = hs_ep->parent;  in dwc2_gadget_complete_isoc_request_ddma()  local
2197 			dev_warn(hsotg->dev, "%s: ISOC EP queue empty\n", __func__);  in dwc2_gadget_complete_isoc_request_ddma()
2222 		dwc2_hsotg_complete_request(hsotg, hs_ep, hs_req, 0);  in dwc2_gadget_complete_isoc_request_ddma()
2242 	struct dwc2_hsotg *hsotg = hs_ep->parent;  in dwc2_gadget_handle_isoc_bna()  local
2245 		dwc2_flush_rx_fifo(hsotg);  in dwc2_gadget_handle_isoc_bna()
2246 	dwc2_hsotg_complete_request(hsotg, hs_ep, get_ep_head(hs_ep), 0);  in dwc2_gadget_handle_isoc_bna()
2263 static void dwc2_hsotg_rx_data(struct dwc2_hsotg *hsotg, int ep_idx, int size)  in dwc2_hsotg_rx_data()  argument
2265 	struct dwc2_hsotg_ep *hs_ep = hsotg->eps_out[ep_idx];  in dwc2_hsotg_rx_data()
2272 		u32 epctl = dwc2_readl(hsotg, DOEPCTL(ep_idx));  in dwc2_hsotg_rx_data()
2275 		dev_dbg(hsotg->dev,  in dwc2_hsotg_rx_data()
2281 			(void)dwc2_readl(hsotg, EPFIFO(ep_idx));  in dwc2_hsotg_rx_data()
2290 	dev_dbg(hsotg->dev, "%s: read %d/%d, done %d/%d\n",  in dwc2_hsotg_rx_data()
2311 	dwc2_readl_rep(hsotg, EPFIFO(ep_idx),  in dwc2_hsotg_rx_data()
2327 static void dwc2_hsotg_ep0_zlp(struct dwc2_hsotg *hsotg, bool dir_in)  in dwc2_hsotg_ep0_zlp()  argument
2330 	hsotg->eps_out[0]->dir_in = dir_in;  in dwc2_hsotg_ep0_zlp()
2331 	hsotg->ep0_state = dir_in ? DWC2_EP0_STATUS_IN : DWC2_EP0_STATUS_OUT;  in dwc2_hsotg_ep0_zlp()
2333 	dwc2_hsotg_program_zlp(hsotg, hsotg->eps_out[0]);  in dwc2_hsotg_ep0_zlp()
2346 	struct dwc2_hsotg *hsotg = hs_ep->parent;  in dwc2_gadget_get_xfersize_ddma()  local
2369 			dev_err(hsotg->dev, "descriptor %d closed with %x\n",  in dwc2_gadget_get_xfersize_ddma()
2390 static void dwc2_hsotg_handle_outdone(struct dwc2_hsotg *hsotg, int epnum)  in dwc2_hsotg_handle_outdone()  argument
2392 	u32 epsize = dwc2_readl(hsotg, DOEPTSIZ(epnum));  in dwc2_hsotg_handle_outdone()
2393 	struct dwc2_hsotg_ep *hs_ep = hsotg->eps_out[epnum];  in dwc2_hsotg_handle_outdone()
2400 		dev_dbg(hsotg->dev, "%s: no request active\n", __func__);  in dwc2_hsotg_handle_outdone()
2404 	if (epnum == 0 && hsotg->ep0_state == DWC2_EP0_STATUS_OUT) {  in dwc2_hsotg_handle_outdone()
2405 		dev_dbg(hsotg->dev, "zlp packet received\n");  in dwc2_hsotg_handle_outdone()
2406 		dwc2_hsotg_complete_request(hsotg, hs_ep, hs_req, 0);  in dwc2_hsotg_handle_outdone()
2407 		dwc2_hsotg_enqueue_setup(hsotg);  in dwc2_hsotg_handle_outdone()
2411 	if (using_desc_dma(hsotg))  in dwc2_hsotg_handle_outdone()
2414 	if (using_dma(hsotg)) {  in dwc2_hsotg_handle_outdone()
2434 		dwc2_hsotg_start_req(hsotg, hs_ep, hs_req, true);  in dwc2_hsotg_handle_outdone()
2439 		dev_dbg(hsotg->dev, "%s: got %d/%d (short not ok) => error\n",  in dwc2_hsotg_handle_outdone()
2449 	if (!using_desc_dma(hsotg) && epnum == 0 &&  in dwc2_hsotg_handle_outdone()
2450 	    hsotg->ep0_state == DWC2_EP0_DATA_OUT) {  in dwc2_hsotg_handle_outdone()
2452 		if (!hsotg->delayed_status)  in dwc2_hsotg_handle_outdone()
2453 			dwc2_hsotg_ep0_zlp(hsotg, true);  in dwc2_hsotg_handle_outdone()
2457 	if (!using_desc_dma(hsotg) && hs_ep->isochronous) {  in dwc2_hsotg_handle_outdone()
2462 	dwc2_hsotg_complete_request(hsotg, hs_ep, hs_req, result);  in dwc2_hsotg_handle_outdone()
2481 static void dwc2_hsotg_handle_rx(struct dwc2_hsotg *hsotg)  in dwc2_hsotg_handle_rx()  argument
2483 	u32 grxstsr = dwc2_readl(hsotg, GRXSTSP);  in dwc2_hsotg_handle_rx()
2486 	WARN_ON(using_dma(hsotg));  in dwc2_hsotg_handle_rx()
2494 	dev_dbg(hsotg->dev, "%s: GRXSTSP=0x%08x (%d@%d)\n",  in dwc2_hsotg_handle_rx()
2499 		dev_dbg(hsotg->dev, "GLOBALOUTNAK\n");  in dwc2_hsotg_handle_rx()
2503 		dev_dbg(hsotg->dev, "OutDone (Frame=0x%08x)\n",  in dwc2_hsotg_handle_rx()
2504 			dwc2_hsotg_read_frameno(hsotg));  in dwc2_hsotg_handle_rx()
2506 		if (!using_dma(hsotg))  in dwc2_hsotg_handle_rx()
2507 			dwc2_hsotg_handle_outdone(hsotg, epnum);  in dwc2_hsotg_handle_rx()
2511 		dev_dbg(hsotg->dev,  in dwc2_hsotg_handle_rx()
2513 			dwc2_hsotg_read_frameno(hsotg),  in dwc2_hsotg_handle_rx()
2514 			dwc2_readl(hsotg, DOEPCTL(0)));  in dwc2_hsotg_handle_rx()
2520 		if (hsotg->ep0_state == DWC2_EP0_SETUP)  in dwc2_hsotg_handle_rx()
2521 			dwc2_hsotg_handle_outdone(hsotg, epnum);  in dwc2_hsotg_handle_rx()
2525 		dwc2_hsotg_rx_data(hsotg, epnum, size);  in dwc2_hsotg_handle_rx()
2529 		dev_dbg(hsotg->dev,  in dwc2_hsotg_handle_rx()
2531 			dwc2_hsotg_read_frameno(hsotg),  in dwc2_hsotg_handle_rx()
2532 			dwc2_readl(hsotg, DOEPCTL(0)));  in dwc2_hsotg_handle_rx()
2534 		WARN_ON(hsotg->ep0_state != DWC2_EP0_SETUP);  in dwc2_hsotg_handle_rx()
2536 		dwc2_hsotg_rx_data(hsotg, epnum, size);  in dwc2_hsotg_handle_rx()
2540 		dev_warn(hsotg->dev, "%s: unknown status %08x\n",  in dwc2_hsotg_handle_rx()
2543 		dwc2_hsotg_dump(hsotg);  in dwc2_hsotg_handle_rx()
2581 static void dwc2_hsotg_set_ep_maxpacket(struct dwc2_hsotg *hsotg,  in dwc2_hsotg_set_ep_maxpacket()  argument
2588 	hs_ep = index_to_ep(hsotg, ep, dir_in);  in dwc2_hsotg_set_ep_maxpacket()
2611 		reg = dwc2_readl(hsotg, DIEPCTL(ep));  in dwc2_hsotg_set_ep_maxpacket()
2614 		dwc2_writel(hsotg, reg, DIEPCTL(ep));  in dwc2_hsotg_set_ep_maxpacket()
2616 		reg = dwc2_readl(hsotg, DOEPCTL(ep));  in dwc2_hsotg_set_ep_maxpacket()
2619 		dwc2_writel(hsotg, reg, DOEPCTL(ep));  in dwc2_hsotg_set_ep_maxpacket()
2625 	dev_err(hsotg->dev, "ep%d: bad mps of %d\n", ep, mps);  in dwc2_hsotg_set_ep_maxpacket()
2633 static void dwc2_hsotg_txfifo_flush(struct dwc2_hsotg *hsotg, unsigned int idx)  in dwc2_hsotg_txfifo_flush()  argument
2635 	dwc2_writel(hsotg, GRSTCTL_TXFNUM(idx) | GRSTCTL_TXFFLSH,  in dwc2_hsotg_txfifo_flush()
2639 	if (dwc2_hsotg_wait_bit_clear(hsotg, GRSTCTL, GRSTCTL_TXFFLSH, 100))  in dwc2_hsotg_txfifo_flush()
2640 		dev_warn(hsotg->dev, "%s: timeout flushing fifo GRSTCTL_TXFFLSH\n",  in dwc2_hsotg_txfifo_flush()
2652 static int dwc2_hsotg_trytx(struct dwc2_hsotg *hsotg,  in dwc2_hsotg_trytx()  argument
2663 			dwc2_hsotg_ctrl_epint(hsotg, hs_ep->index,  in dwc2_hsotg_trytx()
2669 		dev_dbg(hsotg->dev, "trying to write more for ep%d\n",  in dwc2_hsotg_trytx()
2671 		return dwc2_hsotg_write_fifo(hsotg, hs_ep, hs_req);  in dwc2_hsotg_trytx()
2685 static void dwc2_hsotg_complete_in(struct dwc2_hsotg *hsotg,  in dwc2_hsotg_complete_in()  argument
2689 	u32 epsize = dwc2_readl(hsotg, DIEPTSIZ(hs_ep->index));  in dwc2_hsotg_complete_in()
2693 		dev_dbg(hsotg->dev, "XferCompl but no req\n");  in dwc2_hsotg_complete_in()
2698 	if (hs_ep->index == 0 && hsotg->ep0_state == DWC2_EP0_STATUS_IN) {  in dwc2_hsotg_complete_in()
2699 		dev_dbg(hsotg->dev, "zlp packet sent\n");  in dwc2_hsotg_complete_in()
2707 		dwc2_hsotg_complete_request(hsotg, hs_ep, hs_req, 0);  in dwc2_hsotg_complete_in()
2708 		if (hsotg->test_mode) {  in dwc2_hsotg_complete_in()
2711 			ret = dwc2_hsotg_set_test_mode(hsotg, hsotg->test_mode);  in dwc2_hsotg_complete_in()
2713 				dev_dbg(hsotg->dev, "Invalid Test #%d\n",  in dwc2_hsotg_complete_in()
2714 					hsotg->test_mode);  in dwc2_hsotg_complete_in()
2715 				dwc2_hsotg_stall_ep0(hsotg);  in dwc2_hsotg_complete_in()
2719 		dwc2_hsotg_enqueue_setup(hsotg);  in dwc2_hsotg_complete_in()
2732 	if (using_desc_dma(hsotg)) {  in dwc2_hsotg_complete_in()
2735 			dev_err(hsotg->dev, "error parsing DDMA results %d\n",  in dwc2_hsotg_complete_in()
2745 		dev_dbg(hsotg->dev, "%s: adjusting size done %d => %d\n",  in dwc2_hsotg_complete_in()
2749 	dev_dbg(hsotg->dev, "req->length:%d req->actual:%d req->zero:%d\n",  in dwc2_hsotg_complete_in()
2753 		dev_dbg(hsotg->dev, "%s trying more for req...\n", __func__);  in dwc2_hsotg_complete_in()
2754 		dwc2_hsotg_start_req(hsotg, hs_ep, hs_req, true);  in dwc2_hsotg_complete_in()
2761 		if (!using_desc_dma(hsotg)) {  in dwc2_hsotg_complete_in()
2762 			dwc2_hsotg_program_zlp(hsotg, hs_ep);  in dwc2_hsotg_complete_in()
2768 	if (hs_ep->index == 0 && hsotg->ep0_state == DWC2_EP0_DATA_IN) {  in dwc2_hsotg_complete_in()
2770 		dwc2_hsotg_ep0_zlp(hsotg, false);  in dwc2_hsotg_complete_in()
2775 	if (!using_desc_dma(hsotg) && hs_ep->isochronous) {  in dwc2_hsotg_complete_in()
2780 	dwc2_hsotg_complete_request(hsotg, hs_ep, hs_req, 0);  in dwc2_hsotg_complete_in()
2792 static u32 dwc2_gadget_read_ep_interrupts(struct dwc2_hsotg *hsotg,  in dwc2_gadget_read_ep_interrupts()  argument
2801 	mask = dwc2_readl(hsotg, epmsk_reg);  in dwc2_gadget_read_ep_interrupts()
2802 	diepempmsk = dwc2_readl(hsotg, DIEPEMPMSK);  in dwc2_gadget_read_ep_interrupts()
2806 	ints = dwc2_readl(hsotg, epint_reg);  in dwc2_gadget_read_ep_interrupts()
2826 	struct dwc2_hsotg *hsotg = hs_ep->parent;  in dwc2_gadget_handle_ep_disabled()  local
2831 	int dctl = dwc2_readl(hsotg, DCTL);  in dwc2_gadget_handle_ep_disabled()
2833 	dev_dbg(hsotg->dev, "%s: EPDisbld\n", __func__);  in dwc2_gadget_handle_ep_disabled()
2836 		int epctl = dwc2_readl(hsotg, epctl_reg);  in dwc2_gadget_handle_ep_disabled()
2838 		dwc2_hsotg_txfifo_flush(hsotg, hs_ep->fifo_index);  in dwc2_gadget_handle_ep_disabled()
2841 			int dctl = dwc2_readl(hsotg, DCTL);  in dwc2_gadget_handle_ep_disabled()
2844 			dwc2_writel(hsotg, dctl, DCTL);  in dwc2_gadget_handle_ep_disabled()
2850 			dwc2_writel(hsotg, dctl, DCTL);  in dwc2_gadget_handle_ep_disabled()
2858 		dev_dbg(hsotg->dev, "%s: complete_ep 0x%p, ep->queue empty!\n",  in dwc2_gadget_handle_ep_disabled()
2868 			dwc2_hsotg_complete_request(hsotg, hs_ep, hs_req,  in dwc2_gadget_handle_ep_disabled()
2873 		hsotg->frame_number = dwc2_hsotg_read_frameno(hsotg);  in dwc2_gadget_handle_ep_disabled()
2890 	struct dwc2_hsotg *hsotg = ep->parent;  in dwc2_gadget_handle_out_token_ep_disabled()  local
2897 	if (using_desc_dma(hsotg)) {  in dwc2_gadget_handle_out_token_ep_disabled()
2900 			ep->target_frame = hsotg->frame_number;  in dwc2_gadget_handle_out_token_ep_disabled()
2909 		ep->target_frame = hsotg->frame_number;  in dwc2_gadget_handle_out_token_ep_disabled()
2911 			ctrl = dwc2_readl(hsotg, DOEPCTL(ep->index));  in dwc2_gadget_handle_out_token_ep_disabled()
2917 			dwc2_writel(hsotg, ctrl, DOEPCTL(ep->index));  in dwc2_gadget_handle_out_token_ep_disabled()
2926 			dwc2_hsotg_complete_request(hsotg, ep, hs_req, -ENODATA);  in dwc2_gadget_handle_out_token_ep_disabled()
2931 		hsotg->frame_number = dwc2_hsotg_read_frameno(hsotg);  in dwc2_gadget_handle_out_token_ep_disabled()
2939 static void dwc2_hsotg_ep_stop_xfr(struct dwc2_hsotg *hsotg,
2958 	struct dwc2_hsotg *hsotg = hs_ep->parent;  in dwc2_gadget_handle_nak()  local
2968 		if (using_desc_dma(hsotg)) {  in dwc2_gadget_handle_nak()
2969 			hs_ep->target_frame = hsotg->frame_number;  in dwc2_gadget_handle_nak()
2975 			if (hsotg->params.service_interval) {  in dwc2_gadget_handle_nak()
2992 		hs_ep->target_frame = hsotg->frame_number;  in dwc2_gadget_handle_nak()
2994 			u32 ctrl = dwc2_readl(hsotg,  in dwc2_gadget_handle_nak()
3001 			dwc2_writel(hsotg, ctrl, DIEPCTL(hs_ep->index));  in dwc2_gadget_handle_nak()
3005 	if (using_desc_dma(hsotg))  in dwc2_gadget_handle_nak()
3008 	ctrl = dwc2_readl(hsotg, DIEPCTL(hs_ep->index));  in dwc2_gadget_handle_nak()
3010 		dwc2_hsotg_ep_stop_xfr(hsotg, hs_ep);  in dwc2_gadget_handle_nak()
3012 		dwc2_hsotg_txfifo_flush(hsotg, hs_ep->fifo_index);  in dwc2_gadget_handle_nak()
3019 			dwc2_hsotg_complete_request(hsotg, hs_ep, hs_req, -ENODATA);  in dwc2_gadget_handle_nak()
3024 		hsotg->frame_number = dwc2_hsotg_read_frameno(hsotg);  in dwc2_gadget_handle_nak()
3039 static void dwc2_hsotg_epint(struct dwc2_hsotg *hsotg, unsigned int idx,  in dwc2_hsotg_epint()  argument
3042 	struct dwc2_hsotg_ep *hs_ep = index_to_ep(hsotg, idx, dir_in);  in dwc2_hsotg_epint()
3048 	ints = dwc2_gadget_read_ep_interrupts(hsotg, idx, dir_in);  in dwc2_hsotg_epint()
3051 	dwc2_writel(hsotg, ints, epint_reg);  in dwc2_hsotg_epint()
3054 		dev_err(hsotg->dev, "%s:Interrupt for unconfigured ep%d(%s)\n",  in dwc2_hsotg_epint()
3059 	dev_dbg(hsotg->dev, "%s: ep%d(%s) DxEPINT=0x%08x\n",  in dwc2_hsotg_epint()
3072 	if (using_desc_dma(hsotg) && idx == 0 && !hs_ep->dir_in &&  in dwc2_hsotg_epint()
3073 	    hsotg->ep0_state == DWC2_EP0_SETUP && !(ints & DXEPINT_SETUP))  in dwc2_hsotg_epint()
3077 		dev_dbg(hsotg->dev,  in dwc2_hsotg_epint()
3079 			__func__, dwc2_readl(hsotg, epctl_reg),  in dwc2_hsotg_epint()
3080 			dwc2_readl(hsotg, epsiz_reg));  in dwc2_hsotg_epint()
3083 		if (using_desc_dma(hsotg) && hs_ep->isochronous) {  in dwc2_hsotg_epint()
3092 				dwc2_hsotg_complete_in(hsotg, hs_ep);  in dwc2_hsotg_epint()
3095 				dwc2_hsotg_enqueue_setup(hsotg);  in dwc2_hsotg_epint()
3096 		} else if (using_dma(hsotg)) {  in dwc2_hsotg_epint()
3102 				dwc2_hsotg_handle_outdone(hsotg, idx);  in dwc2_hsotg_epint()
3116 		dev_dbg(hsotg->dev, "%s: AHBErr\n", __func__);  in dwc2_hsotg_epint()
3119 		dev_dbg(hsotg->dev, "%s: Setup/Timeout\n",  __func__);  in dwc2_hsotg_epint()
3121 		if (using_dma(hsotg) && idx == 0) {  in dwc2_hsotg_epint()
3132 				dwc2_hsotg_handle_outdone(hsotg, 0);  in dwc2_hsotg_epint()
3137 		dev_dbg(hsotg->dev, "%s: StsPhseRcvd\n", __func__);  in dwc2_hsotg_epint()
3140 		if (hsotg->ep0_state == DWC2_EP0_DATA_OUT) {  in dwc2_hsotg_epint()
3142 			if (using_desc_dma(hsotg)) {  in dwc2_hsotg_epint()
3143 				if (!hsotg->delayed_status)  in dwc2_hsotg_epint()
3144 					dwc2_hsotg_ep0_zlp(hsotg, true);  in dwc2_hsotg_epint()
3153 					dwc2_set_bit(hsotg, DIEPCTL(0),  in dwc2_hsotg_epint()
3161 		dev_dbg(hsotg->dev, "%s: B2BSetup/INEPNakEff\n", __func__);  in dwc2_hsotg_epint()
3164 		dev_dbg(hsotg->dev, "%s: BNA interrupt\n", __func__);  in dwc2_hsotg_epint()
3172 			dev_dbg(hsotg->dev, "%s: ep%d: INTknTXFEmpMsk\n",  in dwc2_hsotg_epint()
3178 			dev_warn(hsotg->dev, "%s: ep%d: INTknEP\n",  in dwc2_hsotg_epint()
3183 		if (hsotg->dedicated_fifos &&  in dwc2_hsotg_epint()
3185 			dev_dbg(hsotg->dev, "%s: ep%d: TxFIFOEmpty\n",  in dwc2_hsotg_epint()
3187 			if (!using_dma(hsotg))  in dwc2_hsotg_epint()
3188 				dwc2_hsotg_trytx(hsotg, hs_ep);  in dwc2_hsotg_epint()
3200 static void dwc2_hsotg_irq_enumdone(struct dwc2_hsotg *hsotg)  in dwc2_hsotg_irq_enumdone()  argument
3202 	u32 dsts = dwc2_readl(hsotg, DSTS);  in dwc2_hsotg_irq_enumdone()
3211 	dev_dbg(hsotg->dev, "EnumDone (DSTS=0x%08x)\n", dsts);  in dwc2_hsotg_irq_enumdone()
3223 		hsotg->gadget.speed = USB_SPEED_FULL;  in dwc2_hsotg_irq_enumdone()
3229 		hsotg->gadget.speed = USB_SPEED_HIGH;  in dwc2_hsotg_irq_enumdone()
3235 		hsotg->gadget.speed = USB_SPEED_LOW;  in dwc2_hsotg_irq_enumdone()
3245 	dev_info(hsotg->dev, "new device is %s\n",  in dwc2_hsotg_irq_enumdone()
3246 		 usb_speed_string(hsotg->gadget.speed));  in dwc2_hsotg_irq_enumdone()
3256 		dwc2_hsotg_set_ep_maxpacket(hsotg, 0, ep0_mps, 0, 1);  in dwc2_hsotg_irq_enumdone()
3257 		dwc2_hsotg_set_ep_maxpacket(hsotg, 0, ep0_mps, 0, 0);  in dwc2_hsotg_irq_enumdone()
3258 		for (i = 1; i < hsotg->num_of_eps; i++) {  in dwc2_hsotg_irq_enumdone()
3259 			if (hsotg->eps_in[i])  in dwc2_hsotg_irq_enumdone()
3260 				dwc2_hsotg_set_ep_maxpacket(hsotg, i, ep_mps,  in dwc2_hsotg_irq_enumdone()
3262 			if (hsotg->eps_out[i])  in dwc2_hsotg_irq_enumdone()
3263 				dwc2_hsotg_set_ep_maxpacket(hsotg, i, ep_mps,  in dwc2_hsotg_irq_enumdone()
3270 	dwc2_hsotg_enqueue_setup(hsotg);  in dwc2_hsotg_irq_enumdone()
3272 	dev_dbg(hsotg->dev, "EP0: DIEPCTL0=0x%08x, DOEPCTL0=0x%08x\n",  in dwc2_hsotg_irq_enumdone()
3273 		dwc2_readl(hsotg, DIEPCTL0),  in dwc2_hsotg_irq_enumdone()
3274 		dwc2_readl(hsotg, DOEPCTL0));  in dwc2_hsotg_irq_enumdone()
3286 static void kill_all_requests(struct dwc2_hsotg *hsotg,  in kill_all_requests()  argument
3297 		dwc2_hsotg_complete_request(hsotg, ep, req, result);  in kill_all_requests()
3300 	if (!hsotg->dedicated_fifos)  in kill_all_requests()
3302 	size = (dwc2_readl(hsotg, DTXFSTS(ep->fifo_index)) & 0xffff) * 4;  in kill_all_requests()
3304 		dwc2_hsotg_txfifo_flush(hsotg, ep->fifo_index);  in kill_all_requests()
3315 void dwc2_hsotg_disconnect(struct dwc2_hsotg *hsotg)  in dwc2_hsotg_disconnect()  argument
3319 	if (!hsotg->connected)  in dwc2_hsotg_disconnect()
3322 	hsotg->connected = 0;  in dwc2_hsotg_disconnect()
3323 	hsotg->test_mode = 0;  in dwc2_hsotg_disconnect()
3326 	for (ep = 0; ep < hsotg->num_of_eps; ep++) {  in dwc2_hsotg_disconnect()
3327 		if (hsotg->eps_in[ep])  in dwc2_hsotg_disconnect()
3328 			kill_all_requests(hsotg, hsotg->eps_in[ep],  in dwc2_hsotg_disconnect()
3330 		if (hsotg->eps_out[ep])  in dwc2_hsotg_disconnect()
3331 			kill_all_requests(hsotg, hsotg->eps_out[ep],  in dwc2_hsotg_disconnect()
3335 	call_gadget(hsotg, disconnect);  in dwc2_hsotg_disconnect()
3336 	hsotg->lx_state = DWC2_L3;  in dwc2_hsotg_disconnect()
3338 	usb_gadget_set_state(&hsotg->gadget, USB_STATE_NOTATTACHED);  in dwc2_hsotg_disconnect()
3346 static void dwc2_hsotg_irq_fifoempty(struct dwc2_hsotg *hsotg, bool periodic)  in dwc2_hsotg_irq_fifoempty()  argument
3352 	for (epno = 0; epno < hsotg->num_of_eps; epno++) {  in dwc2_hsotg_irq_fifoempty()
3353 		ep = index_to_ep(hsotg, epno, 1);  in dwc2_hsotg_irq_fifoempty()
3365 		ret = dwc2_hsotg_trytx(hsotg, ep);  in dwc2_hsotg_irq_fifoempty()
3384 void dwc2_hsotg_core_init_disconnected(struct dwc2_hsotg *hsotg,  in dwc2_hsotg_core_init_disconnected()  argument
3394 	kill_all_requests(hsotg, hsotg->eps_out[0], -ECONNRESET);  in dwc2_hsotg_core_init_disconnected()
3397 		if (dwc2_core_reset(hsotg, true))  in dwc2_hsotg_core_init_disconnected()
3401 		for (ep = 1; ep < hsotg->num_of_eps; ep++) {  in dwc2_hsotg_core_init_disconnected()
3402 			if (hsotg->eps_in[ep])  in dwc2_hsotg_core_init_disconnected()
3403 				dwc2_hsotg_ep_disable(&hsotg->eps_in[ep]->ep);  in dwc2_hsotg_core_init_disconnected()
3404 			if (hsotg->eps_out[ep])  in dwc2_hsotg_core_init_disconnected()
3405 				dwc2_hsotg_ep_disable(&hsotg->eps_out[ep]->ep);  in dwc2_hsotg_core_init_disconnected()
3415 	usbcfg = dwc2_readl(hsotg, GUSBCFG);  in dwc2_hsotg_core_init_disconnected()
3421         dwc2_writel(hsotg, usbcfg, GUSBCFG);  in dwc2_hsotg_core_init_disconnected()
3423 	dwc2_phy_init(hsotg, true);  in dwc2_hsotg_core_init_disconnected()
3425 	dwc2_hsotg_init_fifo(hsotg);  in dwc2_hsotg_core_init_disconnected()
3428 		dwc2_set_bit(hsotg, DCTL, DCTL_SFTDISCON);  in dwc2_hsotg_core_init_disconnected()
3432 	switch (hsotg->params.speed) {  in dwc2_hsotg_core_init_disconnected()
3437 		if (hsotg->params.phy_type == DWC2_PHY_TYPE_PARAM_FS)  in dwc2_hsotg_core_init_disconnected()
3446 	if (hsotg->params.ipg_isoc_en)  in dwc2_hsotg_core_init_disconnected()
3449 	dwc2_writel(hsotg, dcfg,  DCFG);  in dwc2_hsotg_core_init_disconnected()
3452 	dwc2_writel(hsotg, 0xffffffff, GOTGINT);  in dwc2_hsotg_core_init_disconnected()
3455 	dwc2_writel(hsotg, 0xffffffff, GINTSTS);  in dwc2_hsotg_core_init_disconnected()
3463 	if (!using_desc_dma(hsotg))  in dwc2_hsotg_core_init_disconnected()
3466 	if (!hsotg->params.external_id_pin_ctl)  in dwc2_hsotg_core_init_disconnected()
3469 	dwc2_writel(hsotg, intmsk, GINTMSK);  in dwc2_hsotg_core_init_disconnected()
3471 	if (using_dma(hsotg)) {  in dwc2_hsotg_core_init_disconnected()
3472 		dwc2_writel(hsotg, GAHBCFG_GLBL_INTR_EN | GAHBCFG_DMA_EN |  in dwc2_hsotg_core_init_disconnected()
3473 			    hsotg->params.ahbcfg,  in dwc2_hsotg_core_init_disconnected()
3477 		if (using_desc_dma(hsotg))  in dwc2_hsotg_core_init_disconnected()
3478 			dwc2_set_bit(hsotg, DCFG, DCFG_DESCDMA_EN);  in dwc2_hsotg_core_init_disconnected()
3481 		dwc2_writel(hsotg, ((hsotg->dedicated_fifos) ?  in dwc2_hsotg_core_init_disconnected()
3493 	dwc2_writel(hsotg, ((hsotg->dedicated_fifos && !using_dma(hsotg)) ?  in dwc2_hsotg_core_init_disconnected()
3503 	dwc2_writel(hsotg, (using_dma(hsotg) ? (DIEPMSK_XFERCOMPLMSK |  in dwc2_hsotg_core_init_disconnected()
3510 	if (using_desc_dma(hsotg)) {  in dwc2_hsotg_core_init_disconnected()
3511 		dwc2_set_bit(hsotg, DOEPMSK, DOEPMSK_BNAMSK);  in dwc2_hsotg_core_init_disconnected()
3512 		dwc2_set_bit(hsotg, DIEPMSK, DIEPMSK_BNAININTRMSK);  in dwc2_hsotg_core_init_disconnected()
3516 	if (using_desc_dma(hsotg) && hsotg->params.service_interval)  in dwc2_hsotg_core_init_disconnected()
3517 		dwc2_set_bit(hsotg, DCTL, DCTL_SERVICE_INTERVAL_SUPPORTED);  in dwc2_hsotg_core_init_disconnected()
3519 	dwc2_writel(hsotg, 0, DAINTMSK);  in dwc2_hsotg_core_init_disconnected()
3521 	dev_dbg(hsotg->dev, "EP0: DIEPCTL0=0x%08x, DOEPCTL0=0x%08x\n",  in dwc2_hsotg_core_init_disconnected()
3522 		dwc2_readl(hsotg, DIEPCTL0),  in dwc2_hsotg_core_init_disconnected()
3523 		dwc2_readl(hsotg, DOEPCTL0));  in dwc2_hsotg_core_init_disconnected()
3526 	dwc2_hsotg_en_gsint(hsotg, GINTSTS_OEPINT | GINTSTS_IEPINT);  in dwc2_hsotg_core_init_disconnected()
3533 	if (!using_dma(hsotg))  in dwc2_hsotg_core_init_disconnected()
3534 		dwc2_hsotg_en_gsint(hsotg, GINTSTS_RXFLVL);  in dwc2_hsotg_core_init_disconnected()
3537 	dwc2_hsotg_ctrl_epint(hsotg, 0, 0, 1);  in dwc2_hsotg_core_init_disconnected()
3538 	dwc2_hsotg_ctrl_epint(hsotg, 0, 1, 1);  in dwc2_hsotg_core_init_disconnected()
3541 		dwc2_set_bit(hsotg, DCTL, DCTL_PWRONPRGDONE);  in dwc2_hsotg_core_init_disconnected()
3543 		dwc2_clear_bit(hsotg, DCTL, DCTL_PWRONPRGDONE);  in dwc2_hsotg_core_init_disconnected()
3546 	dev_dbg(hsotg->dev, "DCTL=0x%08x\n", dwc2_readl(hsotg, DCTL));  in dwc2_hsotg_core_init_disconnected()
3554 	dwc2_writel(hsotg, DXEPTSIZ_MC(1) | DXEPTSIZ_PKTCNT(1) |  in dwc2_hsotg_core_init_disconnected()
3557 	dwc2_writel(hsotg, dwc2_hsotg_ep0_mps(hsotg->eps_out[0]->ep.maxpacket) |  in dwc2_hsotg_core_init_disconnected()
3563 	dwc2_writel(hsotg, dwc2_hsotg_ep0_mps(hsotg->eps_out[0]->ep.maxpacket) |  in dwc2_hsotg_core_init_disconnected()
3570 	dwc2_set_bit(hsotg, DCTL, val);  in dwc2_hsotg_core_init_disconnected()
3573 	dwc2_gadget_init_lpm(hsotg);  in dwc2_hsotg_core_init_disconnected()
3576 	if (using_desc_dma(hsotg) && hsotg->params.service_interval)  in dwc2_hsotg_core_init_disconnected()
3577 		dwc2_gadget_program_ref_clk(hsotg);  in dwc2_hsotg_core_init_disconnected()
3582 	hsotg->lx_state = DWC2_L0;  in dwc2_hsotg_core_init_disconnected()
3584 	dwc2_hsotg_enqueue_setup(hsotg);  in dwc2_hsotg_core_init_disconnected()
3586 	dev_dbg(hsotg->dev, "EP0: DIEPCTL0=0x%08x, DOEPCTL0=0x%08x\n",  in dwc2_hsotg_core_init_disconnected()
3587 		dwc2_readl(hsotg, DIEPCTL0),  in dwc2_hsotg_core_init_disconnected()
3588 		dwc2_readl(hsotg, DOEPCTL0));  in dwc2_hsotg_core_init_disconnected()
3591 void dwc2_hsotg_core_disconnect(struct dwc2_hsotg *hsotg)  in dwc2_hsotg_core_disconnect()  argument
3594 	dwc2_set_bit(hsotg, DCTL, DCTL_SFTDISCON);  in dwc2_hsotg_core_disconnect()
3597 void dwc2_hsotg_core_connect(struct dwc2_hsotg *hsotg)  in dwc2_hsotg_core_connect()  argument
3600 	if (!hsotg->role_sw || (dwc2_readl(hsotg, GOTGCTL) & GOTGCTL_BSESVLD))  in dwc2_hsotg_core_connect()
3601 		dwc2_clear_bit(hsotg, DCTL, DCTL_SFTDISCON);  in dwc2_hsotg_core_connect()
3617 static void dwc2_gadget_handle_incomplete_isoc_in(struct dwc2_hsotg *hsotg)  in dwc2_gadget_handle_incomplete_isoc_in()  argument
3624 	dev_dbg(hsotg->dev, "Incomplete isoc in interrupt received:\n");  in dwc2_gadget_handle_incomplete_isoc_in()
3626 	daintmsk = dwc2_readl(hsotg, DAINTMSK);  in dwc2_gadget_handle_incomplete_isoc_in()
3628 	for (idx = 1; idx < hsotg->num_of_eps; idx++) {  in dwc2_gadget_handle_incomplete_isoc_in()
3629 		hs_ep = hsotg->eps_in[idx];  in dwc2_gadget_handle_incomplete_isoc_in()
3634 		epctrl = dwc2_readl(hsotg, DIEPCTL(idx));  in dwc2_gadget_handle_incomplete_isoc_in()
3639 			dwc2_writel(hsotg, epctrl, DIEPCTL(idx));  in dwc2_gadget_handle_incomplete_isoc_in()
3644 	dwc2_writel(hsotg, GINTSTS_INCOMPL_SOIN, GINTSTS);  in dwc2_gadget_handle_incomplete_isoc_in()
3660 static void dwc2_gadget_handle_incomplete_isoc_out(struct dwc2_hsotg *hsotg)  in dwc2_gadget_handle_incomplete_isoc_out()  argument
3669 	dev_dbg(hsotg->dev, "%s: GINTSTS_INCOMPL_SOOUT\n", __func__);  in dwc2_gadget_handle_incomplete_isoc_out()
3671 	daintmsk = dwc2_readl(hsotg, DAINTMSK);  in dwc2_gadget_handle_incomplete_isoc_out()
3674 	for (idx = 1; idx < hsotg->num_of_eps; idx++) {  in dwc2_gadget_handle_incomplete_isoc_out()
3675 		hs_ep = hsotg->eps_out[idx];  in dwc2_gadget_handle_incomplete_isoc_out()
3680 		epctrl = dwc2_readl(hsotg, DOEPCTL(idx));  in dwc2_gadget_handle_incomplete_isoc_out()
3684 			gintmsk = dwc2_readl(hsotg, GINTMSK);  in dwc2_gadget_handle_incomplete_isoc_out()
3686 			dwc2_writel(hsotg, gintmsk, GINTMSK);  in dwc2_gadget_handle_incomplete_isoc_out()
3688 			gintsts = dwc2_readl(hsotg, GINTSTS);  in dwc2_gadget_handle_incomplete_isoc_out()
3690 				dwc2_set_bit(hsotg, DCTL, DCTL_SGOUTNAK);  in dwc2_gadget_handle_incomplete_isoc_out()
3697 	dwc2_writel(hsotg, GINTSTS_INCOMPL_SOOUT, GINTSTS);  in dwc2_gadget_handle_incomplete_isoc_out()
3707 	struct dwc2_hsotg *hsotg = pw;  in dwc2_hsotg_irq()  local
3712 	if (!dwc2_is_device_mode(hsotg))  in dwc2_hsotg_irq()
3715 	spin_lock(&hsotg->lock);  in dwc2_hsotg_irq()
3717 	gintsts = dwc2_readl(hsotg, GINTSTS);  in dwc2_hsotg_irq()
3718 	gintmsk = dwc2_readl(hsotg, GINTMSK);  in dwc2_hsotg_irq()
3720 	dev_dbg(hsotg->dev, "%s: %08x %08x (%08x) retry %d\n",  in dwc2_hsotg_irq()
3726 		dev_dbg(hsotg->dev, "%s: USBRstDet\n", __func__);  in dwc2_hsotg_irq()
3728 		dwc2_writel(hsotg, GINTSTS_RESETDET, GINTSTS);  in dwc2_hsotg_irq()
3731 		if (hsotg->in_ppd && hsotg->lx_state == DWC2_L2)  in dwc2_hsotg_irq()
3732 			dwc2_exit_partial_power_down(hsotg, 0, true);  in dwc2_hsotg_irq()
3735 		if (hsotg->params.power_down ==  in dwc2_hsotg_irq()
3736 		    DWC2_POWER_DOWN_PARAM_NONE && hsotg->bus_suspended &&  in dwc2_hsotg_irq()
3737 		    !hsotg->params.no_clock_gating)  in dwc2_hsotg_irq()
3738 			dwc2_gadget_exit_clock_gating(hsotg, 0);  in dwc2_hsotg_irq()
3740 		hsotg->lx_state = DWC2_L0;  in dwc2_hsotg_irq()
3744 		u32 usb_status = dwc2_readl(hsotg, GOTGCTL);  in dwc2_hsotg_irq()
3745 		u32 connected = hsotg->connected;  in dwc2_hsotg_irq()
3747 		dev_dbg(hsotg->dev, "%s: USBRst\n", __func__);  in dwc2_hsotg_irq()
3748 		dev_dbg(hsotg->dev, "GNPTXSTS=%08x\n",  in dwc2_hsotg_irq()
3749 			dwc2_readl(hsotg, GNPTXSTS));  in dwc2_hsotg_irq()
3751 		dwc2_writel(hsotg, GINTSTS_USBRST, GINTSTS);  in dwc2_hsotg_irq()
3754 		dwc2_hsotg_disconnect(hsotg);  in dwc2_hsotg_irq()
3757 		dwc2_clear_bit(hsotg, DCFG, DCFG_DEVADDR_MASK);  in dwc2_hsotg_irq()
3760 			dwc2_hsotg_core_init_disconnected(hsotg, true);  in dwc2_hsotg_irq()
3764 		dwc2_writel(hsotg, GINTSTS_ENUMDONE, GINTSTS);  in dwc2_hsotg_irq()
3766 		dwc2_hsotg_irq_enumdone(hsotg);  in dwc2_hsotg_irq()
3770 		u32 daint = dwc2_readl(hsotg, DAINT);  in dwc2_hsotg_irq()
3771 		u32 daintmsk = dwc2_readl(hsotg, DAINTMSK);  in dwc2_hsotg_irq()
3779 		dev_dbg(hsotg->dev, "%s: daint=%08x\n", __func__, daint);  in dwc2_hsotg_irq()
3781 		for (ep = 0; ep < hsotg->num_of_eps && daint_out;  in dwc2_hsotg_irq()
3784 				dwc2_hsotg_epint(hsotg, ep, 0);  in dwc2_hsotg_irq()
3787 		for (ep = 0; ep < hsotg->num_of_eps  && daint_in;  in dwc2_hsotg_irq()
3790 				dwc2_hsotg_epint(hsotg, ep, 1);  in dwc2_hsotg_irq()
3797 		dev_dbg(hsotg->dev, "NPTxFEmp\n");  in dwc2_hsotg_irq()
3805 		dwc2_hsotg_disable_gsint(hsotg, GINTSTS_NPTXFEMP);  in dwc2_hsotg_irq()
3806 		dwc2_hsotg_irq_fifoempty(hsotg, false);  in dwc2_hsotg_irq()
3810 		dev_dbg(hsotg->dev, "PTxFEmp\n");  in dwc2_hsotg_irq()
3814 		dwc2_hsotg_disable_gsint(hsotg, GINTSTS_PTXFEMP);  in dwc2_hsotg_irq()
3815 		dwc2_hsotg_irq_fifoempty(hsotg, true);  in dwc2_hsotg_irq()
3825 		dwc2_hsotg_handle_rx(hsotg);  in dwc2_hsotg_irq()
3829 		dev_dbg(hsotg->dev, "GINTSTS_ErlySusp\n");  in dwc2_hsotg_irq()
3830 		dwc2_writel(hsotg, GINTSTS_ERLYSUSP, GINTSTS);  in dwc2_hsotg_irq()
3846 		daintmsk = dwc2_readl(hsotg, DAINTMSK);  in dwc2_hsotg_irq()
3849 		gintmsk = dwc2_readl(hsotg, GINTMSK);  in dwc2_hsotg_irq()
3851 		dwc2_writel(hsotg, gintmsk, GINTMSK);  in dwc2_hsotg_irq()
3853 		dev_dbg(hsotg->dev, "GOUTNakEff triggered\n");  in dwc2_hsotg_irq()
3854 		for (idx = 1; idx < hsotg->num_of_eps; idx++) {  in dwc2_hsotg_irq()
3855 			hs_ep = hsotg->eps_out[idx];  in dwc2_hsotg_irq()
3860 			epctrl = dwc2_readl(hsotg, DOEPCTL(idx));  in dwc2_hsotg_irq()
3866 				dwc2_writel(hsotg, epctrl, DOEPCTL(idx));  in dwc2_hsotg_irq()
3876 				dwc2_writel(hsotg, epctrl, DOEPCTL(idx));  in dwc2_hsotg_irq()
3884 		dev_info(hsotg->dev, "GINNakEff triggered\n");  in dwc2_hsotg_irq()
3886 		dwc2_set_bit(hsotg, DCTL, DCTL_CGNPINNAK);  in dwc2_hsotg_irq()
3888 		dwc2_hsotg_dump(hsotg);  in dwc2_hsotg_irq()
3892 		dwc2_gadget_handle_incomplete_isoc_in(hsotg);  in dwc2_hsotg_irq()
3895 		dwc2_gadget_handle_incomplete_isoc_out(hsotg);  in dwc2_hsotg_irq()
3906 	if (hsotg->params.service_interval)  in dwc2_hsotg_irq()
3907 		dwc2_gadget_wkup_alert_handler(hsotg);  in dwc2_hsotg_irq()
3909 	spin_unlock(&hsotg->lock);  in dwc2_hsotg_irq()
3914 static void dwc2_hsotg_ep_stop_xfr(struct dwc2_hsotg *hsotg,  in dwc2_hsotg_ep_stop_xfr()  argument
3925 	dev_dbg(hsotg->dev, "%s: stopping transfer on %s\n", __func__,  in dwc2_hsotg_ep_stop_xfr()
3929 		if (hsotg->dedicated_fifos || hs_ep->periodic) {  in dwc2_hsotg_ep_stop_xfr()
3930 			dwc2_set_bit(hsotg, epctrl_reg, DXEPCTL_SNAK);  in dwc2_hsotg_ep_stop_xfr()
3932 			if (dwc2_hsotg_wait_bit_set(hsotg, epint_reg,  in dwc2_hsotg_ep_stop_xfr()
3934 				dev_warn(hsotg->dev,  in dwc2_hsotg_ep_stop_xfr()
3938 			dwc2_set_bit(hsotg, DCTL, DCTL_SGNPINNAK);  in dwc2_hsotg_ep_stop_xfr()
3940 			if (dwc2_hsotg_wait_bit_set(hsotg, GINTSTS,  in dwc2_hsotg_ep_stop_xfr()
3942 				dev_warn(hsotg->dev,  in dwc2_hsotg_ep_stop_xfr()
3948 		dwc2_hsotg_disable_gsint(hsotg, GINTSTS_GOUTNAKEFF);  in dwc2_hsotg_ep_stop_xfr()
3950 		if (!(dwc2_readl(hsotg, GINTSTS) & GINTSTS_GOUTNAKEFF))  in dwc2_hsotg_ep_stop_xfr()
3951 			dwc2_set_bit(hsotg, DCTL, DCTL_SGOUTNAK);  in dwc2_hsotg_ep_stop_xfr()
3953 		if (!using_dma(hsotg)) {  in dwc2_hsotg_ep_stop_xfr()
3955 			if (dwc2_hsotg_wait_bit_set(hsotg, GINTSTS,  in dwc2_hsotg_ep_stop_xfr()
3957 				dev_warn(hsotg->dev, "%s: timeout GINTSTS.RXFLVL\n",  in dwc2_hsotg_ep_stop_xfr()
3964 				dwc2_readl(hsotg, GRXSTSP);  in dwc2_hsotg_ep_stop_xfr()
3969 		if (dwc2_hsotg_wait_bit_set(hsotg, GINTSTS,  in dwc2_hsotg_ep_stop_xfr()
3971 			dev_warn(hsotg->dev, "%s: timeout GINTSTS.GOUTNAKEFF\n",  in dwc2_hsotg_ep_stop_xfr()
3976 	dwc2_set_bit(hsotg, epctrl_reg, DXEPCTL_EPDIS | DXEPCTL_SNAK);  in dwc2_hsotg_ep_stop_xfr()
3979 	if (dwc2_hsotg_wait_bit_set(hsotg, epint_reg, DXEPINT_EPDISBLD, 100))  in dwc2_hsotg_ep_stop_xfr()
3980 		dev_warn(hsotg->dev,  in dwc2_hsotg_ep_stop_xfr()
3984 	dwc2_set_bit(hsotg, epint_reg, DXEPINT_EPDISBLD);  in dwc2_hsotg_ep_stop_xfr()
3989 		if (hsotg->dedicated_fifos || hs_ep->periodic)  in dwc2_hsotg_ep_stop_xfr()
3995 		dwc2_flush_tx_fifo(hsotg, fifo_index);  in dwc2_hsotg_ep_stop_xfr()
3998 		if (!hsotg->dedicated_fifos && !hs_ep->periodic)  in dwc2_hsotg_ep_stop_xfr()
3999 			dwc2_set_bit(hsotg, DCTL, DCTL_CGNPINNAK);  in dwc2_hsotg_ep_stop_xfr()
4003 		dwc2_set_bit(hsotg, DCTL, DCTL_CGOUTNAK);  in dwc2_hsotg_ep_stop_xfr()
4018 	struct dwc2_hsotg *hsotg = hs_ep->parent;  in dwc2_hsotg_ep_enable()  local
4032 	dev_dbg(hsotg->dev,  in dwc2_hsotg_ep_enable()
4039 		dev_err(hsotg->dev, "%s: called for EP 0\n", __func__);  in dwc2_hsotg_ep_enable()
4045 		dev_err(hsotg->dev, "%s: direction mismatch!\n", __func__);  in dwc2_hsotg_ep_enable()
4054 	if (using_desc_dma(hsotg) && ep_type == USB_ENDPOINT_XFER_ISOC &&  in dwc2_hsotg_ep_enable()
4056 		dev_err(hsotg->dev,  in dwc2_hsotg_ep_enable()
4062 	if (using_desc_dma(hsotg) && ep_type == USB_ENDPOINT_XFER_ISOC &&  in dwc2_hsotg_ep_enable()
4064 		dev_err(hsotg->dev,  in dwc2_hsotg_ep_enable()
4072 	epctrl = dwc2_readl(hsotg, epctrl_reg);  in dwc2_hsotg_ep_enable()
4074 	dev_dbg(hsotg->dev, "%s: read DxEPCTL=0x%08x from 0x%08x\n",  in dwc2_hsotg_ep_enable()
4077 	if (using_desc_dma(hsotg) && ep_type == USB_ENDPOINT_XFER_ISOC)  in dwc2_hsotg_ep_enable()
4083 	if (using_desc_dma(hsotg) && !hs_ep->desc_list) {  in dwc2_hsotg_ep_enable()
4084 		hs_ep->desc_list = dmam_alloc_coherent(hsotg->dev,  in dwc2_hsotg_ep_enable()
4093 	spin_lock_irqsave(&hsotg->lock, flags);  in dwc2_hsotg_ep_enable()
4105 	dwc2_hsotg_set_ep_maxpacket(hsotg, hs_ep->index, mps, mc, dir_in);  in dwc2_hsotg_ep_enable()
4125 			mask = dwc2_readl(hsotg, DIEPMSK);  in dwc2_hsotg_ep_enable()
4127 			dwc2_writel(hsotg, mask, DIEPMSK);  in dwc2_hsotg_ep_enable()
4130 			mask = dwc2_readl(hsotg, DOEPMSK);  in dwc2_hsotg_ep_enable()
4132 			dwc2_writel(hsotg, mask, DOEPMSK);  in dwc2_hsotg_ep_enable()
4144 		if (hsotg->gadget.speed == USB_SPEED_HIGH)  in dwc2_hsotg_ep_enable()
4159 	if (dir_in && hsotg->dedicated_fifos) {  in dwc2_hsotg_ep_enable()
4160 		unsigned fifo_count = dwc2_hsotg_tx_fifo_count(hsotg);  in dwc2_hsotg_ep_enable()
4166 			if (hsotg->fifo_map & (1 << i))  in dwc2_hsotg_ep_enable()
4168 			val = dwc2_readl(hsotg, DPTXFSIZN(i));  in dwc2_hsotg_ep_enable()
4179 			dev_err(hsotg->dev,  in dwc2_hsotg_ep_enable()
4185 		hsotg->fifo_map |= 1 << fifo_index;  in dwc2_hsotg_ep_enable()
4201 	if (hsotg->gadget.speed == USB_SPEED_FULL &&  in dwc2_hsotg_ep_enable()
4207 		u32 gsnpsid = dwc2_readl(hsotg, GSNPSID);  in dwc2_hsotg_ep_enable()
4216 	dev_dbg(hsotg->dev, "%s: write DxEPCTL=0x%08x\n",  in dwc2_hsotg_ep_enable()
4219 	dwc2_writel(hsotg, epctrl, epctrl_reg);  in dwc2_hsotg_ep_enable()
4220 	dev_dbg(hsotg->dev, "%s: read DxEPCTL=0x%08x\n",  in dwc2_hsotg_ep_enable()
4221 		__func__, dwc2_readl(hsotg, epctrl_reg));  in dwc2_hsotg_ep_enable()
4224 	dwc2_hsotg_ctrl_epint(hsotg, index, dir_in, 1);  in dwc2_hsotg_ep_enable()
4227 	spin_unlock_irqrestore(&hsotg->lock, flags);  in dwc2_hsotg_ep_enable()
4230 	if (ret && using_desc_dma(hsotg) && hs_ep->desc_list) {  in dwc2_hsotg_ep_enable()
4231 		dmam_free_coherent(hsotg->dev, desc_num *  in dwc2_hsotg_ep_enable()
4247 	struct dwc2_hsotg *hsotg = hs_ep->parent;  in dwc2_hsotg_ep_disable()  local
4253 	dev_dbg(hsotg->dev, "%s(ep %p)\n", __func__, ep);  in dwc2_hsotg_ep_disable()
4255 	if (ep == &hsotg->eps_out[0]->ep) {  in dwc2_hsotg_ep_disable()
4256 		dev_err(hsotg->dev, "%s: called for ep0\n", __func__);  in dwc2_hsotg_ep_disable()
4260 	if (hsotg->op_state != OTG_STATE_B_PERIPHERAL) {  in dwc2_hsotg_ep_disable()
4261 		dev_err(hsotg->dev, "%s: called in host mode?\n", __func__);  in dwc2_hsotg_ep_disable()
4267 	ctrl = dwc2_readl(hsotg, epctrl_reg);  in dwc2_hsotg_ep_disable()
4270 		dwc2_hsotg_ep_stop_xfr(hsotg, hs_ep);  in dwc2_hsotg_ep_disable()
4276 	dev_dbg(hsotg->dev, "%s: DxEPCTL=0x%08x\n", __func__, ctrl);  in dwc2_hsotg_ep_disable()
4277 	dwc2_writel(hsotg, ctrl, epctrl_reg);  in dwc2_hsotg_ep_disable()
4280 	dwc2_hsotg_ctrl_epint(hsotg, hs_ep->index, hs_ep->dir_in, 0);  in dwc2_hsotg_ep_disable()
4283 	kill_all_requests(hsotg, hs_ep, -ESHUTDOWN);  in dwc2_hsotg_ep_disable()
4285 	hsotg->fifo_map &= ~(1 << hs_ep->fifo_index);  in dwc2_hsotg_ep_disable()
4295 	struct dwc2_hsotg *hsotg = hs_ep->parent;  in dwc2_hsotg_ep_disable_lock()  local
4299 	spin_lock_irqsave(&hsotg->lock, flags);  in dwc2_hsotg_ep_disable_lock()
4301 	spin_unlock_irqrestore(&hsotg->lock, flags);  in dwc2_hsotg_ep_disable_lock()
4493 static void dwc2_hsotg_init(struct dwc2_hsotg *hsotg)  in dwc2_hsotg_init()  argument
4497 	dwc2_writel(hsotg, DIEPMSK_TIMEOUTMSK | DIEPMSK_AHBERRMSK |  in dwc2_hsotg_init()
4501 	dwc2_writel(hsotg, DOEPMSK_SETUPMSK | DOEPMSK_AHBERRMSK |  in dwc2_hsotg_init()
4505 	dwc2_writel(hsotg, 0, DAINTMSK);  in dwc2_hsotg_init()
4508 	dwc2_set_bit(hsotg, DCTL, DCTL_SFTDISCON);  in dwc2_hsotg_init()
4512 	dev_dbg(hsotg->dev, "GRXFSIZ=0x%08x, GNPTXFSIZ=0x%08x\n",  in dwc2_hsotg_init()
4513 		dwc2_readl(hsotg, GRXFSIZ),  in dwc2_hsotg_init()
4514 		dwc2_readl(hsotg, GNPTXFSIZ));  in dwc2_hsotg_init()
4516 	dwc2_hsotg_init_fifo(hsotg);  in dwc2_hsotg_init()
4518 	if (using_dma(hsotg))  in dwc2_hsotg_init()
4519 		dwc2_set_bit(hsotg, GAHBCFG, GAHBCFG_DMA_EN);  in dwc2_hsotg_init()
4533 	struct dwc2_hsotg *hsotg = to_hsotg(gadget);  in dwc2_hsotg_udc_start()  local
4537 	if (!hsotg) {  in dwc2_hsotg_udc_start()
4543 		dev_err(hsotg->dev, "%s: no driver\n", __func__);  in dwc2_hsotg_udc_start()
4548 		dev_err(hsotg->dev, "%s: bad speed\n", __func__);  in dwc2_hsotg_udc_start()
4551 		dev_err(hsotg->dev, "%s: missing entry points\n", __func__);  in dwc2_hsotg_udc_start()
4555 	WARN_ON(hsotg->driver);  in dwc2_hsotg_udc_start()
4557 	hsotg->driver = driver;  in dwc2_hsotg_udc_start()
4558 	hsotg->gadget.dev.of_node = hsotg->dev->of_node;  in dwc2_hsotg_udc_start()
4559 	hsotg->gadget.speed = USB_SPEED_UNKNOWN;  in dwc2_hsotg_udc_start()
4561 	if (hsotg->dr_mode == USB_DR_MODE_PERIPHERAL) {  in dwc2_hsotg_udc_start()
4562 		ret = dwc2_lowlevel_hw_enable(hsotg);  in dwc2_hsotg_udc_start()
4567 	if (!IS_ERR_OR_NULL(hsotg->uphy))  in dwc2_hsotg_udc_start()
4568 		otg_set_peripheral(hsotg->uphy->otg, &hsotg->gadget);  in dwc2_hsotg_udc_start()
4570 	spin_lock_irqsave(&hsotg->lock, flags);  in dwc2_hsotg_udc_start()
4571 	if (dwc2_hw_is_device(hsotg)) {  in dwc2_hsotg_udc_start()
4572 		dwc2_hsotg_init(hsotg);  in dwc2_hsotg_udc_start()
4573 		dwc2_hsotg_core_init_disconnected(hsotg, false);  in dwc2_hsotg_udc_start()
4576 	hsotg->enabled = 0;  in dwc2_hsotg_udc_start()
4577 	spin_unlock_irqrestore(&hsotg->lock, flags);  in dwc2_hsotg_udc_start()
4579 	gadget->sg_supported = using_desc_dma(hsotg);  in dwc2_hsotg_udc_start()
4580 	dev_info(hsotg->dev, "bound driver %s\n", driver->driver.name);  in dwc2_hsotg_udc_start()
4585 	hsotg->driver = NULL;  in dwc2_hsotg_udc_start()
4597 	struct dwc2_hsotg *hsotg = to_hsotg(gadget);  in dwc2_hsotg_udc_stop()  local
4601 	if (!hsotg)  in dwc2_hsotg_udc_stop()
4605 	for (ep = 1; ep < hsotg->num_of_eps; ep++) {  in dwc2_hsotg_udc_stop()
4606 		if (hsotg->eps_in[ep])  in dwc2_hsotg_udc_stop()
4607 			dwc2_hsotg_ep_disable_lock(&hsotg->eps_in[ep]->ep);  in dwc2_hsotg_udc_stop()
4608 		if (hsotg->eps_out[ep])  in dwc2_hsotg_udc_stop()
4609 			dwc2_hsotg_ep_disable_lock(&hsotg->eps_out[ep]->ep);  in dwc2_hsotg_udc_stop()
4612 	spin_lock_irqsave(&hsotg->lock, flags);  in dwc2_hsotg_udc_stop()
4614 	hsotg->driver = NULL;  in dwc2_hsotg_udc_stop()
4615 	hsotg->gadget.speed = USB_SPEED_UNKNOWN;  in dwc2_hsotg_udc_stop()
4616 	hsotg->enabled = 0;  in dwc2_hsotg_udc_stop()
4618 	spin_unlock_irqrestore(&hsotg->lock, flags);  in dwc2_hsotg_udc_stop()
4620 	if (!IS_ERR_OR_NULL(hsotg->uphy))  in dwc2_hsotg_udc_stop()
4621 		otg_set_peripheral(hsotg->uphy->otg, NULL);  in dwc2_hsotg_udc_stop()
4623 	if (hsotg->dr_mode == USB_DR_MODE_PERIPHERAL)  in dwc2_hsotg_udc_stop()
4624 		dwc2_lowlevel_hw_disable(hsotg);  in dwc2_hsotg_udc_stop()
4650 	struct dwc2_hsotg *hsotg = to_hsotg(gadget);  in dwc2_hsotg_set_selfpowered()  local
4653 	spin_lock_irqsave(&hsotg->lock, flags);  in dwc2_hsotg_set_selfpowered()
4655 	spin_unlock_irqrestore(&hsotg->lock, flags);  in dwc2_hsotg_set_selfpowered()
4669 	struct dwc2_hsotg *hsotg = to_hsotg(gadget);  in dwc2_hsotg_pullup()  local
4672 	dev_dbg(hsotg->dev, "%s: is_on: %d op_state: %d\n", __func__, is_on,  in dwc2_hsotg_pullup()
4673 		hsotg->op_state);  in dwc2_hsotg_pullup()
4676 	if (hsotg->op_state != OTG_STATE_B_PERIPHERAL) {  in dwc2_hsotg_pullup()
4677 		hsotg->enabled = is_on;  in dwc2_hsotg_pullup()
4681 	spin_lock_irqsave(&hsotg->lock, flags);  in dwc2_hsotg_pullup()
4683 		hsotg->enabled = 1;  in dwc2_hsotg_pullup()
4684 		dwc2_hsotg_core_init_disconnected(hsotg, false);  in dwc2_hsotg_pullup()
4686 		dwc2_enable_acg(hsotg);  in dwc2_hsotg_pullup()
4687 		dwc2_hsotg_core_connect(hsotg);  in dwc2_hsotg_pullup()
4689 		dwc2_hsotg_core_disconnect(hsotg);  in dwc2_hsotg_pullup()
4690 		dwc2_hsotg_disconnect(hsotg);  in dwc2_hsotg_pullup()
4691 		hsotg->enabled = 0;  in dwc2_hsotg_pullup()
4694 	hsotg->gadget.speed = USB_SPEED_UNKNOWN;  in dwc2_hsotg_pullup()
4695 	spin_unlock_irqrestore(&hsotg->lock, flags);  in dwc2_hsotg_pullup()
4702 	struct dwc2_hsotg *hsotg = to_hsotg(gadget);  in dwc2_hsotg_vbus_session()  local
4705 	dev_dbg(hsotg->dev, "%s: is_active: %d\n", __func__, is_active);  in dwc2_hsotg_vbus_session()
4706 	spin_lock_irqsave(&hsotg->lock, flags);  in dwc2_hsotg_vbus_session()
4712 	if (hsotg->lx_state == DWC2_L2 && hsotg->in_ppd)  in dwc2_hsotg_vbus_session()
4717 		dwc2_exit_partial_power_down(hsotg, 0, false);  in dwc2_hsotg_vbus_session()
4720 		hsotg->op_state = OTG_STATE_B_PERIPHERAL;  in dwc2_hsotg_vbus_session()
4722 		dwc2_hsotg_core_init_disconnected(hsotg, false);  in dwc2_hsotg_vbus_session()
4723 		if (hsotg->enabled) {  in dwc2_hsotg_vbus_session()
4725 			dwc2_enable_acg(hsotg);  in dwc2_hsotg_vbus_session()
4726 			dwc2_hsotg_core_connect(hsotg);  in dwc2_hsotg_vbus_session()
4729 		dwc2_hsotg_core_disconnect(hsotg);  in dwc2_hsotg_vbus_session()
4730 		dwc2_hsotg_disconnect(hsotg);  in dwc2_hsotg_vbus_session()
4733 	spin_unlock_irqrestore(&hsotg->lock, flags);  in dwc2_hsotg_vbus_session()
4746 	struct dwc2_hsotg *hsotg = to_hsotg(gadget);  in dwc2_hsotg_vbus_draw()  local
4748 	if (IS_ERR_OR_NULL(hsotg->uphy))  in dwc2_hsotg_vbus_draw()
4750 	return usb_phy_set_power(hsotg->uphy, mA);  in dwc2_hsotg_vbus_draw()
4755 	struct dwc2_hsotg *hsotg = to_hsotg(g);  in dwc2_gadget_set_speed()  local
4758 	spin_lock_irqsave(&hsotg->lock, flags);  in dwc2_gadget_set_speed()
4761 		hsotg->params.speed = DWC2_SPEED_PARAM_HIGH;  in dwc2_gadget_set_speed()
4764 		hsotg->params.speed = DWC2_SPEED_PARAM_FULL;  in dwc2_gadget_set_speed()
4767 		hsotg->params.speed = DWC2_SPEED_PARAM_LOW;  in dwc2_gadget_set_speed()
4770 		dev_err(hsotg->dev, "invalid speed (%d)\n", speed);  in dwc2_gadget_set_speed()
4772 	spin_unlock_irqrestore(&hsotg->lock, flags);  in dwc2_gadget_set_speed()
4797 static void dwc2_hsotg_initep(struct dwc2_hsotg *hsotg,  in dwc2_hsotg_initep()  argument
4821 		list_add_tail(&hs_ep->ep.ep_list, &hsotg->gadget.ep_list);  in dwc2_hsotg_initep()
4823 	hs_ep->parent = hsotg;  in dwc2_hsotg_initep()
4826 	if (hsotg->params.speed == DWC2_SPEED_PARAM_LOW)  in dwc2_hsotg_initep()
4836 		if (hsotg->params.speed != DWC2_SPEED_PARAM_LOW) {  in dwc2_hsotg_initep()
4853 	if (using_dma(hsotg)) {  in dwc2_hsotg_initep()
4857 			dwc2_writel(hsotg, next, DIEPCTL(epnum));  in dwc2_hsotg_initep()
4859 			dwc2_writel(hsotg, next, DOEPCTL(epnum));  in dwc2_hsotg_initep()
4869 static int dwc2_hsotg_hw_cfg(struct dwc2_hsotg *hsotg)  in dwc2_hsotg_hw_cfg()  argument
4877 	hsotg->num_of_eps = hsotg->hw_params.num_dev_ep;  in dwc2_hsotg_hw_cfg()
4880 	hsotg->num_of_eps++;  in dwc2_hsotg_hw_cfg()
4882 	hsotg->eps_in[0] = devm_kzalloc(hsotg->dev,  in dwc2_hsotg_hw_cfg()
4885 	if (!hsotg->eps_in[0])  in dwc2_hsotg_hw_cfg()
4888 	hsotg->eps_out[0] = hsotg->eps_in[0];  in dwc2_hsotg_hw_cfg()
4890 	cfg = hsotg->hw_params.dev_ep_dirs;  in dwc2_hsotg_hw_cfg()
4891 	for (i = 1, cfg >>= 2; i < hsotg->num_of_eps; i++, cfg >>= 2) {  in dwc2_hsotg_hw_cfg()
4895 			hsotg->eps_in[i] = devm_kzalloc(hsotg->dev,  in dwc2_hsotg_hw_cfg()
4897 			if (!hsotg->eps_in[i])  in dwc2_hsotg_hw_cfg()
4902 			hsotg->eps_out[i] = devm_kzalloc(hsotg->dev,  in dwc2_hsotg_hw_cfg()
4904 			if (!hsotg->eps_out[i])  in dwc2_hsotg_hw_cfg()
4909 	hsotg->fifo_mem = hsotg->hw_params.total_fifo_size;  in dwc2_hsotg_hw_cfg()
4910 	hsotg->dedicated_fifos = hsotg->hw_params.en_multiple_tx_fifo;  in dwc2_hsotg_hw_cfg()
4912 	dev_info(hsotg->dev, "EPs: %d, %s fifos, %d entries in SPRAM\n",  in dwc2_hsotg_hw_cfg()
4913 		 hsotg->num_of_eps,  in dwc2_hsotg_hw_cfg()
4914 		 hsotg->dedicated_fifos ? "dedicated" : "shared",  in dwc2_hsotg_hw_cfg()
4915 		 hsotg->fifo_mem);  in dwc2_hsotg_hw_cfg()
4924 static void dwc2_hsotg_dump(struct dwc2_hsotg *hsotg)  in dwc2_hsotg_dump()  argument
4927 	struct device *dev = hsotg->dev;  in dwc2_hsotg_dump()
4932 		 dwc2_readl(hsotg, DCFG), dwc2_readl(hsotg, DCTL),  in dwc2_hsotg_dump()
4933 		 dwc2_readl(hsotg, DIEPMSK));  in dwc2_hsotg_dump()
4936 		 dwc2_readl(hsotg, GAHBCFG), dwc2_readl(hsotg, GHWCFG1));  in dwc2_hsotg_dump()
4939 		 dwc2_readl(hsotg, GRXFSIZ), dwc2_readl(hsotg, GNPTXFSIZ));  in dwc2_hsotg_dump()
4943 	for (idx = 1; idx < hsotg->num_of_eps; idx++) {  in dwc2_hsotg_dump()
4944 		val = dwc2_readl(hsotg, DPTXFSIZN(idx));  in dwc2_hsotg_dump()
4950 	for (idx = 0; idx < hsotg->num_of_eps; idx++) {  in dwc2_hsotg_dump()
4953 			 dwc2_readl(hsotg, DIEPCTL(idx)),  in dwc2_hsotg_dump()
4954 			 dwc2_readl(hsotg, DIEPTSIZ(idx)),  in dwc2_hsotg_dump()
4955 			 dwc2_readl(hsotg, DIEPDMA(idx)));  in dwc2_hsotg_dump()
4957 		val = dwc2_readl(hsotg, DOEPCTL(idx));  in dwc2_hsotg_dump()
4960 			 idx, dwc2_readl(hsotg, DOEPCTL(idx)),  in dwc2_hsotg_dump()
4961 			 dwc2_readl(hsotg, DOEPTSIZ(idx)),  in dwc2_hsotg_dump()
4962 			 dwc2_readl(hsotg, DOEPDMA(idx)));  in dwc2_hsotg_dump()
4966 		 dwc2_readl(hsotg, DVBUSDIS), dwc2_readl(hsotg, DVBUSPULSE));  in dwc2_hsotg_dump()
4975 int dwc2_gadget_init(struct dwc2_hsotg *hsotg)  in dwc2_gadget_init()  argument
4977 	struct device *dev = hsotg->dev;  in dwc2_gadget_init()
4983 		hsotg->params.g_np_tx_fifo_size);  in dwc2_gadget_init()
4984 	dev_dbg(dev, "RXFIFO size: %d\n", hsotg->params.g_rx_fifo_size);  in dwc2_gadget_init()
4986 	switch (hsotg->params.speed) {  in dwc2_gadget_init()
4988 		hsotg->gadget.max_speed = USB_SPEED_LOW;  in dwc2_gadget_init()
4991 		hsotg->gadget.max_speed = USB_SPEED_FULL;  in dwc2_gadget_init()
4994 		hsotg->gadget.max_speed = USB_SPEED_HIGH;  in dwc2_gadget_init()
4998 	hsotg->gadget.ops = &dwc2_hsotg_gadget_ops;  in dwc2_gadget_init()
4999 	hsotg->gadget.name = dev_name(dev);  in dwc2_gadget_init()
5000 	hsotg->gadget.otg_caps = &hsotg->params.otg_caps;  in dwc2_gadget_init()
5001 	hsotg->remote_wakeup_allowed = 0;  in dwc2_gadget_init()
5003 	if (hsotg->params.lpm)  in dwc2_gadget_init()
5004 		hsotg->gadget.lpm_capable = true;  in dwc2_gadget_init()
5006 	if (hsotg->dr_mode == USB_DR_MODE_OTG)  in dwc2_gadget_init()
5007 		hsotg->gadget.is_otg = 1;  in dwc2_gadget_init()
5008 	else if (hsotg->dr_mode == USB_DR_MODE_PERIPHERAL)  in dwc2_gadget_init()
5009 		hsotg->op_state = OTG_STATE_B_PERIPHERAL;  in dwc2_gadget_init()
5011 	ret = dwc2_hsotg_hw_cfg(hsotg);  in dwc2_gadget_init()
5013 		dev_err(hsotg->dev, "Hardware configuration failed: %d\n", ret);  in dwc2_gadget_init()
5017 	hsotg->ctrl_buff = devm_kzalloc(hsotg->dev,  in dwc2_gadget_init()
5019 	if (!hsotg->ctrl_buff)  in dwc2_gadget_init()
5022 	hsotg->ep0_buff = devm_kzalloc(hsotg->dev,  in dwc2_gadget_init()
5024 	if (!hsotg->ep0_buff)  in dwc2_gadget_init()
5027 	if (using_desc_dma(hsotg)) {  in dwc2_gadget_init()
5028 		ret = dwc2_gadget_alloc_ctrl_desc_chains(hsotg);  in dwc2_gadget_init()
5033 	ret = devm_request_irq(hsotg->dev, hsotg->irq, dwc2_hsotg_irq,  in dwc2_gadget_init()
5034 			       IRQF_SHARED, dev_name(hsotg->dev), hsotg);  in dwc2_gadget_init()
5042 	if (hsotg->num_of_eps == 0) {  in dwc2_gadget_init()
5049 	INIT_LIST_HEAD(&hsotg->gadget.ep_list);  in dwc2_gadget_init()
5050 	hsotg->gadget.ep0 = &hsotg->eps_out[0]->ep;  in dwc2_gadget_init()
5054 	hsotg->ctrl_req = dwc2_hsotg_ep_alloc_request(&hsotg->eps_out[0]->ep,  in dwc2_gadget_init()
5056 	if (!hsotg->ctrl_req) {  in dwc2_gadget_init()
5062 	for (epnum = 0; epnum < hsotg->num_of_eps; epnum++) {  in dwc2_gadget_init()
5063 		if (hsotg->eps_in[epnum])  in dwc2_gadget_init()
5064 			dwc2_hsotg_initep(hsotg, hsotg->eps_in[epnum],  in dwc2_gadget_init()
5066 		if (hsotg->eps_out[epnum])  in dwc2_gadget_init()
5067 			dwc2_hsotg_initep(hsotg, hsotg->eps_out[epnum],  in dwc2_gadget_init()
5071 	dwc2_hsotg_dump(hsotg);  in dwc2_gadget_init()
5081 int dwc2_hsotg_remove(struct dwc2_hsotg *hsotg)  in dwc2_hsotg_remove()  argument
5083 	usb_del_gadget_udc(&hsotg->gadget);  in dwc2_hsotg_remove()
5084 	dwc2_hsotg_ep_free_request(&hsotg->eps_out[0]->ep, hsotg->ctrl_req);  in dwc2_hsotg_remove()
5089 int dwc2_hsotg_suspend(struct dwc2_hsotg *hsotg)  in dwc2_hsotg_suspend()  argument
5093 	if (hsotg->lx_state != DWC2_L0)  in dwc2_hsotg_suspend()
5096 	if (hsotg->driver) {  in dwc2_hsotg_suspend()
5099 		dev_info(hsotg->dev, "suspending usb gadget %s\n",  in dwc2_hsotg_suspend()
5100 			 hsotg->driver->driver.name);  in dwc2_hsotg_suspend()
5102 		spin_lock_irqsave(&hsotg->lock, flags);  in dwc2_hsotg_suspend()
5103 		if (hsotg->enabled)  in dwc2_hsotg_suspend()
5104 			dwc2_hsotg_core_disconnect(hsotg);  in dwc2_hsotg_suspend()
5105 		dwc2_hsotg_disconnect(hsotg);  in dwc2_hsotg_suspend()
5106 		hsotg->gadget.speed = USB_SPEED_UNKNOWN;  in dwc2_hsotg_suspend()
5107 		spin_unlock_irqrestore(&hsotg->lock, flags);  in dwc2_hsotg_suspend()
5109 		for (ep = 1; ep < hsotg->num_of_eps; ep++) {  in dwc2_hsotg_suspend()
5110 			if (hsotg->eps_in[ep])  in dwc2_hsotg_suspend()
5111 				dwc2_hsotg_ep_disable_lock(&hsotg->eps_in[ep]->ep);  in dwc2_hsotg_suspend()
5112 			if (hsotg->eps_out[ep])  in dwc2_hsotg_suspend()
5113 				dwc2_hsotg_ep_disable_lock(&hsotg->eps_out[ep]->ep);  in dwc2_hsotg_suspend()
5120 int dwc2_hsotg_resume(struct dwc2_hsotg *hsotg)  in dwc2_hsotg_resume()  argument
5124 	if (hsotg->lx_state == DWC2_L2)  in dwc2_hsotg_resume()
5127 	if (hsotg->driver) {  in dwc2_hsotg_resume()
5128 		dev_info(hsotg->dev, "resuming usb gadget %s\n",  in dwc2_hsotg_resume()
5129 			 hsotg->driver->driver.name);  in dwc2_hsotg_resume()
5131 		spin_lock_irqsave(&hsotg->lock, flags);  in dwc2_hsotg_resume()
5132 		dwc2_hsotg_core_init_disconnected(hsotg, false);  in dwc2_hsotg_resume()
5133 		if (hsotg->enabled) {  in dwc2_hsotg_resume()
5135 			dwc2_enable_acg(hsotg);  in dwc2_hsotg_resume()
5136 			dwc2_hsotg_core_connect(hsotg);  in dwc2_hsotg_resume()
5138 		spin_unlock_irqrestore(&hsotg->lock, flags);  in dwc2_hsotg_resume()
5151 int dwc2_backup_device_registers(struct dwc2_hsotg *hsotg)  in dwc2_backup_device_registers()  argument
5156 	dev_dbg(hsotg->dev, "%s\n", __func__);  in dwc2_backup_device_registers()
5159 	dr = &hsotg->dr_backup;  in dwc2_backup_device_registers()
5161 	dr->dcfg = dwc2_readl(hsotg, DCFG);  in dwc2_backup_device_registers()
5162 	dr->dctl = dwc2_readl(hsotg, DCTL);  in dwc2_backup_device_registers()
5163 	dr->daintmsk = dwc2_readl(hsotg, DAINTMSK);  in dwc2_backup_device_registers()
5164 	dr->diepmsk = dwc2_readl(hsotg, DIEPMSK);  in dwc2_backup_device_registers()
5165 	dr->doepmsk = dwc2_readl(hsotg, DOEPMSK);  in dwc2_backup_device_registers()
5167 	for (i = 0; i < hsotg->num_of_eps; i++) {  in dwc2_backup_device_registers()
5169 		dr->diepctl[i] = dwc2_readl(hsotg, DIEPCTL(i));  in dwc2_backup_device_registers()
5177 		dr->dieptsiz[i] = dwc2_readl(hsotg, DIEPTSIZ(i));  in dwc2_backup_device_registers()
5178 		dr->diepdma[i] = dwc2_readl(hsotg, DIEPDMA(i));  in dwc2_backup_device_registers()
5181 		dr->doepctl[i] = dwc2_readl(hsotg, DOEPCTL(i));  in dwc2_backup_device_registers()
5189 		dr->doeptsiz[i] = dwc2_readl(hsotg, DOEPTSIZ(i));  in dwc2_backup_device_registers()
5190 		dr->doepdma[i] = dwc2_readl(hsotg, DOEPDMA(i));  in dwc2_backup_device_registers()
5191 		dr->dtxfsiz[i] = dwc2_readl(hsotg, DPTXFSIZN(i));  in dwc2_backup_device_registers()
5207 int dwc2_restore_device_registers(struct dwc2_hsotg *hsotg, int remote_wakeup)  in dwc2_restore_device_registers()  argument
5212 	dev_dbg(hsotg->dev, "%s\n", __func__);  in dwc2_restore_device_registers()
5215 	dr = &hsotg->dr_backup;  in dwc2_restore_device_registers()
5217 		dev_err(hsotg->dev, "%s: no device registers to restore\n",  in dwc2_restore_device_registers()
5224 		dwc2_writel(hsotg, dr->dctl, DCTL);  in dwc2_restore_device_registers()
5226 	dwc2_writel(hsotg, dr->daintmsk, DAINTMSK);  in dwc2_restore_device_registers()
5227 	dwc2_writel(hsotg, dr->diepmsk, DIEPMSK);  in dwc2_restore_device_registers()
5228 	dwc2_writel(hsotg, dr->doepmsk, DOEPMSK);  in dwc2_restore_device_registers()
5230 	for (i = 0; i < hsotg->num_of_eps; i++) {  in dwc2_restore_device_registers()
5232 		dwc2_writel(hsotg, dr->dieptsiz[i], DIEPTSIZ(i));  in dwc2_restore_device_registers()
5233 		dwc2_writel(hsotg, dr->diepdma[i], DIEPDMA(i));  in dwc2_restore_device_registers()
5234 		dwc2_writel(hsotg, dr->doeptsiz[i], DOEPTSIZ(i));  in dwc2_restore_device_registers()
5240 		if (using_desc_dma(hsotg) &&  in dwc2_restore_device_registers()
5242 			dr->diepdma[i] = hsotg->eps_in[i]->desc_list_dma;  in dwc2_restore_device_registers()
5243 		dwc2_writel(hsotg, dr->dtxfsiz[i], DPTXFSIZN(i));  in dwc2_restore_device_registers()
5244 		dwc2_writel(hsotg, dr->diepctl[i], DIEPCTL(i));  in dwc2_restore_device_registers()
5246 		dwc2_writel(hsotg, dr->doeptsiz[i], DOEPTSIZ(i));  in dwc2_restore_device_registers()
5252 		if (using_desc_dma(hsotg) &&  in dwc2_restore_device_registers()
5254 			dr->doepdma[i] = hsotg->eps_out[i]->desc_list_dma;  in dwc2_restore_device_registers()
5255 		dwc2_writel(hsotg, dr->doepdma[i], DOEPDMA(i));  in dwc2_restore_device_registers()
5256 		dwc2_writel(hsotg, dr->doepctl[i], DOEPCTL(i));  in dwc2_restore_device_registers()
5268 void dwc2_gadget_init_lpm(struct dwc2_hsotg *hsotg)  in dwc2_gadget_init_lpm()  argument
5272 	if (!hsotg->params.lpm)  in dwc2_gadget_init_lpm()
5276 	val |= hsotg->params.hird_threshold_en ? GLPMCFG_HIRD_THRES_EN : 0;  in dwc2_gadget_init_lpm()
5277 	val |= hsotg->params.lpm_clock_gating ? GLPMCFG_ENBLSLPM : 0;  in dwc2_gadget_init_lpm()
5278 	val |= hsotg->params.hird_threshold << GLPMCFG_HIRD_THRES_SHIFT;  in dwc2_gadget_init_lpm()
5279 	val |= hsotg->params.besl ? GLPMCFG_ENBESL : 0;  in dwc2_gadget_init_lpm()
5282 	dwc2_writel(hsotg, val, GLPMCFG);  in dwc2_gadget_init_lpm()
5283 	dev_dbg(hsotg->dev, "GLPMCFG=0x%08x\n", dwc2_readl(hsotg, GLPMCFG));  in dwc2_gadget_init_lpm()
5286 	if (hsotg->params.service_interval)  in dwc2_gadget_init_lpm()
5287 		dwc2_set_bit(hsotg, GINTMSK2, GINTMSK2_WKUP_ALERT_INT_MSK);  in dwc2_gadget_init_lpm()
5296 void dwc2_gadget_program_ref_clk(struct dwc2_hsotg *hsotg)  in dwc2_gadget_program_ref_clk()  argument
5301 	val |= hsotg->params.ref_clk_per << GREFCLK_REFCLKPER_SHIFT;  in dwc2_gadget_program_ref_clk()
5302 	val |= hsotg->params.sof_cnt_wkup_alert <<  in dwc2_gadget_program_ref_clk()
5305 	dwc2_writel(hsotg, val, GREFCLK);  in dwc2_gadget_program_ref_clk()
5306 	dev_dbg(hsotg->dev, "GREFCLK=0x%08x\n", dwc2_readl(hsotg, GREFCLK));  in dwc2_gadget_program_ref_clk()
5316 int dwc2_gadget_enter_hibernation(struct dwc2_hsotg *hsotg)  in dwc2_gadget_enter_hibernation()  argument
5322 	hsotg->lx_state = DWC2_L2;  in dwc2_gadget_enter_hibernation()
5323 	dev_dbg(hsotg->dev, "Start of hibernation completed\n");  in dwc2_gadget_enter_hibernation()
5324 	ret = dwc2_backup_global_registers(hsotg);  in dwc2_gadget_enter_hibernation()
5326 		dev_err(hsotg->dev, "%s: failed to backup global registers\n",  in dwc2_gadget_enter_hibernation()
5330 	ret = dwc2_backup_device_registers(hsotg);  in dwc2_gadget_enter_hibernation()
5332 		dev_err(hsotg->dev, "%s: failed to backup device registers\n",  in dwc2_gadget_enter_hibernation()
5339 	dwc2_writel(hsotg, gpwrdn, GPWRDN);  in dwc2_gadget_enter_hibernation()
5343 	hsotg->hibernated = 1;  in dwc2_gadget_enter_hibernation()
5346 	gpwrdn = dwc2_readl(hsotg, GPWRDN);  in dwc2_gadget_enter_hibernation()
5348 	dwc2_writel(hsotg, gpwrdn, GPWRDN);  in dwc2_gadget_enter_hibernation()
5352 	gpwrdn = dwc2_readl(hsotg, GPWRDN);  in dwc2_gadget_enter_hibernation()
5356 	dwc2_writel(hsotg, gpwrdn, GPWRDN);  in dwc2_gadget_enter_hibernation()
5360 	gpwrdn = dwc2_readl(hsotg, GPWRDN);  in dwc2_gadget_enter_hibernation()
5362 	dwc2_writel(hsotg, gpwrdn, GPWRDN);  in dwc2_gadget_enter_hibernation()
5366 	gpwrdn = dwc2_readl(hsotg, GPWRDN);  in dwc2_gadget_enter_hibernation()
5368 	dwc2_writel(hsotg, gpwrdn, GPWRDN);  in dwc2_gadget_enter_hibernation()
5372 	hsotg->gr_backup.gpwrdn = dwc2_readl(hsotg, GPWRDN);  in dwc2_gadget_enter_hibernation()
5373 	dev_dbg(hsotg->dev, "Hibernation completed\n");  in dwc2_gadget_enter_hibernation()
5389 int dwc2_gadget_exit_hibernation(struct dwc2_hsotg *hsotg,  in dwc2_gadget_exit_hibernation()  argument
5399 	gr = &hsotg->gr_backup;  in dwc2_gadget_exit_hibernation()
5400 	dr = &hsotg->dr_backup;  in dwc2_gadget_exit_hibernation()
5402 	if (!hsotg->hibernated) {  in dwc2_gadget_exit_hibernation()
5403 		dev_dbg(hsotg->dev, "Already exited from Hibernation\n");  in dwc2_gadget_exit_hibernation()
5406 	dev_dbg(hsotg->dev,  in dwc2_gadget_exit_hibernation()
5410 	dwc2_hib_restore_common(hsotg, rem_wakeup, 0);  in dwc2_gadget_exit_hibernation()
5414 		dwc2_writel(hsotg, 0xffffffff, GINTSTS);  in dwc2_gadget_exit_hibernation()
5418 	gpwrdn = dwc2_readl(hsotg, GPWRDN);  in dwc2_gadget_exit_hibernation()
5420 	dwc2_writel(hsotg, gpwrdn, GPWRDN);  in dwc2_gadget_exit_hibernation()
5424 		pcgcctl = dwc2_readl(hsotg, PCGCTL);  in dwc2_gadget_exit_hibernation()
5426 		dwc2_writel(hsotg, pcgcctl, PCGCTL);  in dwc2_gadget_exit_hibernation()
5430 	dwc2_writel(hsotg, gr->gusbcfg, GUSBCFG);  in dwc2_gadget_exit_hibernation()
5431 	dwc2_writel(hsotg, dr->dcfg, DCFG);  in dwc2_gadget_exit_hibernation()
5432 	dwc2_writel(hsotg, dr->dctl, DCTL);  in dwc2_gadget_exit_hibernation()
5436 		dwc2_clear_bit(hsotg, DCFG, DCFG_DEVADDR_MASK);  in dwc2_gadget_exit_hibernation()
5439 	gpwrdn = dwc2_readl(hsotg, GPWRDN);  in dwc2_gadget_exit_hibernation()
5441 	dwc2_writel(hsotg, gpwrdn, GPWRDN);  in dwc2_gadget_exit_hibernation()
5446 		dwc2_writel(hsotg, dr->dctl | DCTL_RMTWKUPSIG, DCTL);  in dwc2_gadget_exit_hibernation()
5450 		dctl = dwc2_readl(hsotg, DCTL);  in dwc2_gadget_exit_hibernation()
5452 		dwc2_writel(hsotg, dctl, DCTL);  in dwc2_gadget_exit_hibernation()
5457 	dwc2_writel(hsotg, 0xffffffff, GINTSTS);  in dwc2_gadget_exit_hibernation()
5460 	ret = dwc2_restore_global_registers(hsotg);  in dwc2_gadget_exit_hibernation()
5462 		dev_err(hsotg->dev, "%s: failed to restore registers\n",  in dwc2_gadget_exit_hibernation()
5468 	ret = dwc2_restore_device_registers(hsotg, rem_wakeup);  in dwc2_gadget_exit_hibernation()
5470 		dev_err(hsotg->dev, "%s: failed to restore device registers\n",  in dwc2_gadget_exit_hibernation()
5477 		dctl = dwc2_readl(hsotg, DCTL);  in dwc2_gadget_exit_hibernation()
5479 		dwc2_writel(hsotg, dctl, DCTL);  in dwc2_gadget_exit_hibernation()
5482 	hsotg->hibernated = 0;  in dwc2_gadget_exit_hibernation()
5483 	hsotg->lx_state = DWC2_L0;  in dwc2_gadget_exit_hibernation()
5484 	dev_dbg(hsotg->dev, "Hibernation recovery completes here\n");  in dwc2_gadget_exit_hibernation()
5499 int dwc2_gadget_enter_partial_power_down(struct dwc2_hsotg *hsotg)  in dwc2_gadget_enter_partial_power_down()  argument
5504 	dev_dbg(hsotg->dev, "Entering device partial power down started.\n");  in dwc2_gadget_enter_partial_power_down()
5507 	ret = dwc2_backup_global_registers(hsotg);  in dwc2_gadget_enter_partial_power_down()
5509 		dev_err(hsotg->dev, "%s: failed to backup global registers\n",  in dwc2_gadget_enter_partial_power_down()
5514 	ret = dwc2_backup_device_registers(hsotg);  in dwc2_gadget_enter_partial_power_down()
5516 		dev_err(hsotg->dev, "%s: failed to backup device registers\n",  in dwc2_gadget_enter_partial_power_down()
5525 	dwc2_writel(hsotg, 0xffffffff, GINTSTS);  in dwc2_gadget_enter_partial_power_down()
5528 	pcgcctl = dwc2_readl(hsotg, PCGCTL);  in dwc2_gadget_enter_partial_power_down()
5531 	dwc2_writel(hsotg, pcgcctl, PCGCTL);  in dwc2_gadget_enter_partial_power_down()
5535 	dwc2_writel(hsotg, pcgcctl, PCGCTL);  in dwc2_gadget_enter_partial_power_down()
5539 	dwc2_writel(hsotg, pcgcctl, PCGCTL);  in dwc2_gadget_enter_partial_power_down()
5542 	hsotg->in_ppd = 1;  in dwc2_gadget_enter_partial_power_down()
5543 	hsotg->lx_state = DWC2_L2;  in dwc2_gadget_enter_partial_power_down()
5545 	dev_dbg(hsotg->dev, "Entering device partial power down completed.\n");  in dwc2_gadget_enter_partial_power_down()
5561 int dwc2_gadget_exit_partial_power_down(struct dwc2_hsotg *hsotg,  in dwc2_gadget_exit_partial_power_down()  argument
5569 	dr = &hsotg->dr_backup;  in dwc2_gadget_exit_partial_power_down()
5571 	dev_dbg(hsotg->dev, "Exiting device partial Power Down started.\n");  in dwc2_gadget_exit_partial_power_down()
5573 	pcgcctl = dwc2_readl(hsotg, PCGCTL);  in dwc2_gadget_exit_partial_power_down()
5575 	dwc2_writel(hsotg, pcgcctl, PCGCTL);  in dwc2_gadget_exit_partial_power_down()
5577 	pcgcctl = dwc2_readl(hsotg, PCGCTL);  in dwc2_gadget_exit_partial_power_down()
5579 	dwc2_writel(hsotg, pcgcctl, PCGCTL);  in dwc2_gadget_exit_partial_power_down()
5581 	pcgcctl = dwc2_readl(hsotg, PCGCTL);  in dwc2_gadget_exit_partial_power_down()
5583 	dwc2_writel(hsotg, pcgcctl, PCGCTL);  in dwc2_gadget_exit_partial_power_down()
5587 		ret = dwc2_restore_global_registers(hsotg);  in dwc2_gadget_exit_partial_power_down()
5589 			dev_err(hsotg->dev, "%s: failed to restore registers\n",  in dwc2_gadget_exit_partial_power_down()
5594 		dwc2_writel(hsotg, dr->dcfg, DCFG);  in dwc2_gadget_exit_partial_power_down()
5596 		ret = dwc2_restore_device_registers(hsotg, 0);  in dwc2_gadget_exit_partial_power_down()
5598 			dev_err(hsotg->dev, "%s: failed to restore device registers\n",  in dwc2_gadget_exit_partial_power_down()
5605 	dctl = dwc2_readl(hsotg, DCTL);  in dwc2_gadget_exit_partial_power_down()
5607 	dwc2_writel(hsotg, dctl, DCTL);  in dwc2_gadget_exit_partial_power_down()
5610 	hsotg->in_ppd = 0;  in dwc2_gadget_exit_partial_power_down()
5611 	hsotg->lx_state = DWC2_L0;  in dwc2_gadget_exit_partial_power_down()
5613 	dev_dbg(hsotg->dev, "Exiting device partial Power Down completed.\n");  in dwc2_gadget_exit_partial_power_down()
5626 void dwc2_gadget_enter_clock_gating(struct dwc2_hsotg *hsotg)  in dwc2_gadget_enter_clock_gating()  argument
5630 	dev_dbg(hsotg->dev, "Entering device clock gating.\n");  in dwc2_gadget_enter_clock_gating()
5633 	pcgctl = dwc2_readl(hsotg, PCGCTL);  in dwc2_gadget_enter_clock_gating()
5635 	dwc2_writel(hsotg, pcgctl, PCGCTL);  in dwc2_gadget_enter_clock_gating()
5639 	pcgctl = dwc2_readl(hsotg, PCGCTL);  in dwc2_gadget_enter_clock_gating()
5641 	dwc2_writel(hsotg, pcgctl, PCGCTL);  in dwc2_gadget_enter_clock_gating()
5644 	hsotg->lx_state = DWC2_L2;  in dwc2_gadget_enter_clock_gating()
5645 	hsotg->bus_suspended = true;  in dwc2_gadget_enter_clock_gating()
5656 void dwc2_gadget_exit_clock_gating(struct dwc2_hsotg *hsotg, int rem_wakeup)  in dwc2_gadget_exit_clock_gating()  argument
5661 	dev_dbg(hsotg->dev, "Exiting device clock gating.\n");  in dwc2_gadget_exit_clock_gating()
5664 	pcgctl = dwc2_readl(hsotg, PCGCTL);  in dwc2_gadget_exit_clock_gating()
5666 	dwc2_writel(hsotg, pcgctl, PCGCTL);  in dwc2_gadget_exit_clock_gating()
5670 	pcgctl = dwc2_readl(hsotg, PCGCTL);  in dwc2_gadget_exit_clock_gating()
5672 	dwc2_writel(hsotg, pcgctl, PCGCTL);  in dwc2_gadget_exit_clock_gating()
5677 		dctl = dwc2_readl(hsotg, DCTL);  in dwc2_gadget_exit_clock_gating()
5679 		dwc2_writel(hsotg, dctl, DCTL);  in dwc2_gadget_exit_clock_gating()
5683 	call_gadget(hsotg, resume);  in dwc2_gadget_exit_clock_gating()
5684 	hsotg->lx_state = DWC2_L0;  in dwc2_gadget_exit_clock_gating()
5685 	hsotg->bus_suspended = false;  in dwc2_gadget_exit_clock_gating()