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Commit d8484552 authored by Razmik Karapetyan's avatar Razmik Karapetyan Committed by Felipe Balbi
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usb: dwc2: Update GINTSTS_GOUTNAKEFF interrupt handling 



Disabled only unmasked endpoints based on DAINTMSK register.
This will allow to minimize GINTSTS_GOUTNAKEFF interrupt handling.

Acked-by: default avatarJohn Youn <johnyoun@synopsys.com>
Signed-off-by: default avatarRazmik Karapetyan <razmik@synopsys.com>
Signed-off-by: default avatarMinas Harutyunyan <hminas@synopsys.com>
Signed-off-by: default avatarGrigor Tovmasyan <tovmasya@synopsys.com>
Signed-off-by: default avatarFelipe Balbi <felipe.balbi@linux.intel.com>
parent 689efb26

drivers/usb/dwc2/gadget.c

+8 −1
Original line number Diff line number Diff line
@@ -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));