diff options
| author | Razmik Karapetyan <razmik@synopsys.com> | 2018-01-19 14:40:49 +0400 |
|---|---|---|
| committer | Felipe Balbi <felipe.balbi@linux.intel.com> | 2018-03-13 10:47:41 +0200 |
| commit | 1b4977c793d3d9818ff04df1a09f3c60166626fa (patch) | |
| tree | fbf33c9011abed1ef52065f17082b46ece9d0346 /drivers/usb/dwc2/gadget.c | |
| parent | 1b52d2fac4075e8e32a95ad81b521fdab1e1678c (diff) | |
| download | lwn-1b4977c793d3d9818ff04df1a09f3c60166626fa.tar.gz lwn-1b4977c793d3d9818ff04df1a09f3c60166626fa.zip | |
usb: dwc2: Update dwc2_handle_incomplete_isoc_in() function
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>
Diffstat (limited to 'drivers/usb/dwc2/gadget.c')
| -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 3cc1e3747b7d..8e42537847d4 100644 --- a/drivers/usb/dwc2/gadget.c +++ b/drivers/usb/dwc2/gadget.c @@ -3412,14 +3412,21 @@ static void dwc2_gadget_handle_incomplete_isoc_in(struct dwc2_hsotg *hsotg) { struct dwc2_hsotg_ep *hs_ep; u32 epctrl; + u32 daintmsk; u32 idx; 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++) { 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)); - if ((epctrl & DXEPCTL_EPENA) && hs_ep->isochronous && + if ((epctrl & DXEPCTL_EPENA) && dwc2_gadget_target_frame_elapsed(hs_ep)) { epctrl |= DXEPCTL_SNAK; epctrl |= DXEPCTL_EPDIS; |