diff options
| author | Razmik Karapetyan <razmik@synopsys.com> | 2018-01-19 13:41:42 +0300 |
|---|---|---|
| committer | Felipe Balbi <felipe.balbi@linux.intel.com> | 2018-03-13 11:47:41 +0300 |
| commit | d84845522d93f92e2278c082f195f83ebd7dfe26 (patch) | |
| tree | 005a84f3f56925a011cb092db4a4269f5d2d3c97 /drivers/usb/dwc2 | |
| parent | 689efb2619b58fa21da6c9b96b74f5d1fb8d2b46 (diff) | |
| download | linux-d84845522d93f92e2278c082f195f83ebd7dfe26.tar.xz | |
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: 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>
Diffstat (limited to 'drivers/usb/dwc2')
| -rw-r--r-- | drivers/usb/dwc2/gadget.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/drivers/usb/dwc2/gadget.c b/drivers/usb/dwc2/gadget.c index 2ffc380ddb62..4509b2eb3eca 100644 --- a/drivers/usb/dwc2/gadget.c +++ b/drivers/usb/dwc2/gadget.c @@ -3628,8 +3628,11 @@ irq_retry: 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 @@ irq_retry: 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)); |