1 files changed, 39 insertions, 8 deletions

diff --git a/drivers/usb/dwc2/hcd.c b/drivers/usb/dwc2/hcd.c
index 14925fedb..9c32a64bc 100644
--- a/drivers/usb/dwc2/hcd.c
+++ b/drivers/usb/dwc2/hcd.c
@@ -2736,8 +2736,11 @@ enum dwc2_transaction_type dwc2_hcd_select_transactions(
 			hsotg->available_host_channels--;
 		}
 		qh = list_entry(qh_ptr, struct dwc2_qh, qh_list_entry);
-		if (dwc2_assign_and_init_hc(hsotg, qh))
+		if (dwc2_assign_and_init_hc(hsotg, qh)) {
+			if (hsotg->params.uframe_sched)
+				hsotg->available_host_channels++;
 			break;
+		}
 
 		/*
 		 * Move the QH from the periodic ready schedule to the
@@ -2770,8 +2773,11 @@ enum dwc2_transaction_type dwc2_hcd_select_transactions(
 			hsotg->available_host_channels--;
 		}
 
-		if (dwc2_assign_and_init_hc(hsotg, qh))
+		if (dwc2_assign_and_init_hc(hsotg, qh)) {
+			if (hsotg->params.uframe_sched)
+				hsotg->available_host_channels++;
 			break;
+		}
 
 		/*
 		 * Move the QH from the non-periodic inactive schedule to the
@@ -4125,6 +4131,8 @@ void dwc2_host_complete(struct dwc2_hsotg *hsotg, struct dwc2_qtd *qtd,
 			 urb->actual_length);
 
 	if (usb_pipetype(urb->pipe) == PIPE_ISOCHRONOUS) {
+		if (!hsotg->params.dma_desc_enable)
+			urb->start_frame = qtd->qh->start_active_frame;
 		urb->error_count = dwc2_hcd_urb_get_error_count(qtd->urb);
 		for (i = 0; i < urb->number_of_packets; ++i) {
 			urb->iso_frame_desc[i].actual_length =
@@ -5319,9 +5327,16 @@ int dwc2_backup_host_registers(struct dwc2_hsotg *hsotg)
 	/* Backup Host regs */
 	hr = &hsotg->hr_backup;
 	hr->hcfg = dwc2_readl(hsotg, HCFG);
+	hr->hflbaddr = dwc2_readl(hsotg, HFLBADDR);
 	hr->haintmsk = dwc2_readl(hsotg, HAINTMSK);
-	for (i = 0; i < hsotg->params.host_channels; ++i)
+	for (i = 0; i < hsotg->params.host_channels; ++i) {
+		hr->hcchar[i] = dwc2_readl(hsotg, HCCHAR(i));
+		hr->hcsplt[i] = dwc2_readl(hsotg, HCSPLT(i));
 		hr->hcintmsk[i] = dwc2_readl(hsotg, HCINTMSK(i));
+		hr->hctsiz[i] = dwc2_readl(hsotg, HCTSIZ(i));
+		hr->hcidma[i] = dwc2_readl(hsotg, HCDMA(i));
+		hr->hcidmab[i] = dwc2_readl(hsotg, HCDMAB(i));
+	}
 
 	hr->hprt0 = dwc2_read_hprt0(hsotg);
 	hr->hfir = dwc2_readl(hsotg, HFIR);
@@ -5355,10 +5370,17 @@ int dwc2_restore_host_registers(struct dwc2_hsotg *hsotg)
 	hr->valid = false;
 
 	dwc2_writel(hsotg, hr->hcfg, HCFG);
+	dwc2_writel(hsotg, hr->hflbaddr, HFLBADDR);
 	dwc2_writel(hsotg, hr->haintmsk, HAINTMSK);
 
-	for (i = 0; i < hsotg->params.host_channels; ++i)
+	for (i = 0; i < hsotg->params.host_channels; ++i) {
+		dwc2_writel(hsotg, hr->hcchar[i], HCCHAR(i));
+		dwc2_writel(hsotg, hr->hcsplt[i], HCSPLT(i));
 		dwc2_writel(hsotg, hr->hcintmsk[i], HCINTMSK(i));
+		dwc2_writel(hsotg, hr->hctsiz[i], HCTSIZ(i));
+		dwc2_writel(hsotg, hr->hcidma[i], HCDMA(i));
+		dwc2_writel(hsotg, hr->hcidmab[i], HCDMAB(i));
+	}
 
 	dwc2_writel(hsotg, hr->hprt0, HPRT0);
 	dwc2_writel(hsotg, hr->hfir, HFIR);
@@ -5523,10 +5545,12 @@ int dwc2_host_exit_hibernation(struct dwc2_hsotg *hsotg, int rem_wakeup,
 	dwc2_writel(hsotg, hr->hcfg, HCFG);
 
 	/* De-assert Wakeup Logic */
-	gpwrdn = dwc2_readl(hsotg, GPWRDN);
-	gpwrdn &= ~GPWRDN_PMUACTV;
-	dwc2_writel(hsotg, gpwrdn, GPWRDN);
-	udelay(10);
+	if (!(rem_wakeup && hsotg->hw_params.snpsid >= DWC2_CORE_REV_4_30a)) {
+		gpwrdn = dwc2_readl(hsotg, GPWRDN);
+		gpwrdn &= ~GPWRDN_PMUACTV;
+		dwc2_writel(hsotg, gpwrdn, GPWRDN);
+		udelay(10);
+	}
 
 	hprt0 = hr->hprt0;
 	hprt0 |= HPRT0_PWR;
@@ -5551,6 +5575,13 @@ int dwc2_host_exit_hibernation(struct dwc2_hsotg *hsotg, int rem_wakeup,
 		hprt0 |= HPRT0_RES;
 		dwc2_writel(hsotg, hprt0, HPRT0);
 
+		/* De-assert Wakeup Logic */
+		if ((rem_wakeup && hsotg->hw_params.snpsid >= DWC2_CORE_REV_4_30a)) {
+			gpwrdn = dwc2_readl(hsotg, GPWRDN);
+			gpwrdn &= ~GPWRDN_PMUACTV;
+			dwc2_writel(hsotg, gpwrdn, GPWRDN);
+			udelay(10);
+		}
 		/* Wait for Resume time and then program HPRT again */
 		mdelay(100);
 		hprt0 &= ~HPRT0_RES;