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usb: dwc2: Update dwc2_handle_incomplete_isoc_in() function

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Disabled only that ISOC endpoints,for which interrupt bit was set
in the DAINTMSK register. This will allow to minimize incomplete
ISOC IN interrupt handling.

Acked-by: John Youn <johnyoun@synopsys.com>
Signed-off-by: Razmik Karapetyan <razmik@synopsys.com>
Signed-off-by: Minas Harutyunyan <hminas@synopsys.com>
Signed-off-by: Grigor Tovmasyan <tovmasya@synopsys.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
This commit is contained in:
Razmik Karapetyan 2018-01-19 14:40:49 +04:00 committed by Felipe Balbi
parent 1b52d2fac4
commit 1b4977c793
1 changed files with 8 additions and 1 deletions
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9
drivers/usb/dwc2/gadget.c
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@ -3412,14 +3412,21 @@ static void dwc2_gadget_handle_incomplete_isoc_in(struct dwc2_hsotg *hsotg)
{ {
struct dwc2_hsotg_ep *hs_ep; struct dwc2_hsotg_ep *hs_ep;
u32 epctrl; u32 epctrl;
u32 daintmsk;
u32 idx; u32 idx;
dev_dbg(hsotg->dev, "Incomplete isoc in interrupt received:\n"); dev_dbg(hsotg->dev, "Incomplete isoc in interrupt received:\n");
daintmsk = dwc2_readl(hsotg->regs + DAINTMSK);
for (idx = 1; idx <= hsotg->num_of_eps; idx++) { for (idx = 1; idx <= hsotg->num_of_eps; idx++) {
hs_ep = hsotg->eps_in[idx]; hs_ep = hsotg->eps_in[idx];
/* Proceed only unmasked ISOC EPs */
if (!hs_ep->isochronous || (BIT(idx) & ~daintmsk))
continue;
epctrl = dwc2_readl(hsotg->regs + DIEPCTL(idx)); epctrl = dwc2_readl(hsotg->regs + DIEPCTL(idx));
if ((epctrl & DXEPCTL_EPENA) && hs_ep->isochronous && if ((epctrl & DXEPCTL_EPENA) &&
dwc2_gadget_target_frame_elapsed(hs_ep)) { dwc2_gadget_target_frame_elapsed(hs_ep)) {
epctrl |= DXEPCTL_SNAK; epctrl |= DXEPCTL_SNAK;
epctrl |= DXEPCTL_EPDIS; epctrl |= DXEPCTL_EPDIS;