From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933894AbdDSLHi (ORCPT ); Wed, 19 Apr 2017 07:07:38 -0400 Received: from smtprelay.synopsys.com ([198.182.60.111]:41959 "EHLO smtprelay.synopsys.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933869AbdDSLHg (ORCPT ); Wed, 19 Apr 2017 07:07:36 -0400 Date: Wed, 19 Apr 2017 15:07:23 +0400 From: Razmik Karapetyan Subject: [PATCH 1/3] usb: dwc2: Update dwc2_handle_incomplete_isoc_in() function To: John Youn , Felipe Balbi , "Greg Kroah-Hartman" , , CC: Razmik Karapetyan MIME-Version: 1.0 Content-Type: text/plain Message-ID: <5595f8fe-647b-4bce-abb2-ac9cf91bebdb@US01WEHTC2.internal.synopsys.com> X-Originating-IP: [10.13.184.19] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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. Signed-off-by: Razmik Karapetyan --- 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 98a4a79..543ecf1 100644 --- a/drivers/usb/dwc2/gadget.c +++ b/drivers/usb/dwc2/gadget.c @@ -3449,14 +3449,21 @@ 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; -- 2.7.4