From: Razmik Karapetyan <razmik@xxxxxxxxxxxx>
Disabled only unmasked endpoints based on DAINTMSK register.
This will allow to minimize GINTSTS_GOUTNAKEFF interrupt handling.
Signed-off-by: Razmik Karapetyan <razmik@xxxxxxxxxxxx>
Signed-off-by: Minas Harutyunyan <hminas@xxxxxxxxxxxx>
Signed-off-by: Grigor Tovmasyan <tovmasya@xxxxxxxxxxxx>
---
drivers/usb/dwc2/gadget.c | 9 ++++++++-
1 file changed, 8 insertions(+), 1 deletion(-)
diff --git a/drivers/usb/dwc2/gadget.c b/drivers/usb/dwc2/gadget.c
index 7216549fa3af..80562786b809 100644
--- a/drivers/usb/dwc2/gadget.c
+++ b/drivers/usb/dwc2/gadget.c
@@ -3666,8 +3666,11 @@ 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;
@@ -3676,9 +3679,13 @@ 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));
--
2.11.0
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