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usb: dwc2: Update GINTSTS_GOUTNAKEFF interrupt handling

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Disabled only unmasked endpoints based on DAINTMSK register.
This will allow to minimize GINTSTS_GOUTNAKEFF 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 14:41:42 +04:00 committed by Felipe Balbi
parent 689efb2619
commit d84845522d
1 changed files with 8 additions and 1 deletions
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9
drivers/usb/dwc2/gadget.c
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@ -3628,8 +3628,11 @@ static irqreturn_t dwc2_hsotg_irq(int irq, void *pw)
u8 idx;
u32 epctrl;
u32 gintmsk;
u32 daintmsk;
struct dwc2_hsotg_ep *hs_ep;
daintmsk = dwc2_readl(hsotg->regs + DAINTMSK);
daintmsk >>= DAINT_OUTEP_SHIFT;
/* Mask this interrupt */
gintmsk = dwc2_readl(hsotg->regs + GINTMSK);
gintmsk &= ~GINTSTS_GOUTNAKEFF;
@ -3638,9 +3641,13 @@ static irqreturn_t dwc2_hsotg_irq(int irq, void *pw)
dev_dbg(hsotg->dev, "GOUTNakEff triggered\n");
for (idx = 1; idx <= hsotg->num_of_eps; idx++) {
hs_ep = hsotg->eps_out[idx];
/* Proceed only unmasked ISOC EPs */
if (!hs_ep->isochronous || (BIT(idx) & ~daintmsk))
continue;
epctrl = dwc2_readl(hsotg->regs + DOEPCTL(idx));
if ((epctrl & DXEPCTL_EPENA) && hs_ep->isochronous) {
if (epctrl & DXEPCTL_EPENA) {
epctrl |= DXEPCTL_SNAK;
epctrl |= DXEPCTL_EPDIS;
dwc2_writel(epctrl, hsotg->regs + DOEPCTL(idx));