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authorMinas Harutyunyan <Minas.Harutyunyan@synopsys.com>2024-03-13 12:21:32 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2024-03-26 16:56:23 +0300
commitb258e42688501cadb1a6dd658d6f015df9f32d8f (patch)
tree48c0b6b69ed4872c10628c2f18ec02c8ef516e46 /drivers/usb/dwc2/hcd.c
parentbae2bc73a59c200db53b6c15fb26bb758e2c6108 (diff)
downloadlinux-b258e42688501cadb1a6dd658d6f015df9f32d8f.tar.xz
usb: dwc2: host: Fix ISOC flow in DDMA mode
Fixed ISOC completion flow in DDMA mode. Added isoc descriptor actual length value and update urb's start_frame value. Fixed initialization of ISOC DMA descriptors flow. Fixes: 56f5b1cff22a ("staging: Core files for the DWC2 driver") Fixes: 20f2eb9c4cf8 ("staging: dwc2: add microframe scheduler from downstream Pi kernel") Fixes: c17b337c1ea4 ("usb: dwc2: host: program descriptor for next frame") Fixes: dc4c76e7b22c ("staging: HCD descriptor DMA support for the DWC2 driver") Fixes: 762d3a1a9cd7 ("usb: dwc2: host: process all completed urbs") CC: stable@vger.kernel.org Signed-off-by: Minas Harutyunyan <Minas.Harutyunyan@synopsys.com> Link: https://lore.kernel.org/r/a8b1e1711cc6cabfb45d92ede12e35445c66f06c.1708944698.git.Minas.Harutyunyan@synopsys.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/dwc2/hcd.c')
-rw-r--r--drivers/usb/dwc2/hcd.c12
1 files changed, 10 insertions, 2 deletions
diff --git a/drivers/usb/dwc2/hcd.c b/drivers/usb/dwc2/hcd.c
index 6de999c7513e..70b389125f63 100644
--- a/drivers/usb/dwc2/hcd.c
+++ b/drivers/usb/dwc2/hcd.c
@@ -2701,8 +2701,11 @@ 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
@@ -2735,8 +2738,11 @@ 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
@@ -4143,6 +4149,8 @@ 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 =