47 lines
1.5 KiB
Diff
47 lines
1.5 KiB
Diff
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From 48dac4e4a5eed3fa478db2c59945b6283281566d Mon Sep 17 00:00:00 2001
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From: Grigor Tovmasyan <Grigor.Tovmasyan@synopsys.com>
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Date: Wed, 29 Aug 2018 21:00:33 +0400
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Subject: [PATCH 09/53] usb: dwc2: Update target (u)frame calculation
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In service interval based scheduling target (u)frame must be
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set as a last frame in this the service interval.
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Acked-by: Minas Harutyunyan <hminas@synopsys.com>
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Signed-off-by: Grigor Tovmasyan <tovmasya@synopsys.com>
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Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
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---
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drivers/usb/dwc2/gadget.c | 17 +++++++++++++++++
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1 file changed, 17 insertions(+)
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diff --git a/drivers/usb/dwc2/gadget.c b/drivers/usb/dwc2/gadget.c
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index 71f097d89001..9de16453a890 100644
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--- a/drivers/usb/dwc2/gadget.c
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+++ b/drivers/usb/dwc2/gadget.c
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@@ -2830,6 +2830,23 @@ static void dwc2_gadget_handle_nak(struct dwc2_hsotg_ep *hs_ep)
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if (using_desc_dma(hsotg)) {
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hs_ep->target_frame = hsotg->frame_number;
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dwc2_gadget_incr_frame_num(hs_ep);
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+
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+ /* In service interval mode target_frame must
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+ * be set to last (u)frame of the service interval.
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+ */
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+ if (hsotg->params.service_interval) {
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+ /* Set target_frame to the first (u)frame of
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+ * the service interval
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+ */
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+ hs_ep->target_frame &= ~hs_ep->interval + 1;
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+
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+ /* Set target_frame to the last (u)frame of
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+ * the service interval
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+ */
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+ dwc2_gadget_incr_frame_num(hs_ep);
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+ dwc2_gadget_dec_frame_num_by_one(hs_ep);
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+ }
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+
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dwc2_gadget_start_isoc_ddma(hs_ep);
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return;
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}
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--
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2.11.0
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