From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Cyrus-Session-Id: sloti22d1t05-1420212-1518184662-2-8218032074986435407 X-Sieve: CMU Sieve 3.0 X-Spam-known-sender: no X-Spam-score: 0.0 X-Spam-hits: BAYES_00 -1.9, HEADER_FROM_DIFFERENT_DOMAINS 0.001, ME_NOAUTH 0.01, RCVD_IN_DNSWL_HI -5, T_RP_MATCHES_RCVD -0.01, LANGUAGES en, BAYES_USED global, SA_VERSION 3.4.0 X-Spam-source: IP='209.132.180.67', Host='vger.kernel.org', Country='US', FromHeader='org', MailFrom='org' X-Spam-charsets: plain='UTF-8' X-Resolved-to: greg@kroah.com X-Delivered-to: greg@kroah.com X-Mail-from: stable-owner@vger.kernel.org ARC-Seal: i=1; a=rsa-sha256; cv=none; d=messagingengine.com; s=arctest; t=1518184662; b=JHsgJt4YBFXK/2hiNDG/ZpHGtVT7H5iYCYjdvKeVbiDFY7a DWHF3Z/gtjlHAdxYTl9rHdKVm5gYchKv46NhINehZ8XtY6VcCq88jIPiq3irD3e2 6wqHbq/91e4m18oP9ePS01/MZdVzwXwhx7aR0mlf0wu8odsgS0r7aAFszibfke21 WQz65lXkf4M9Ovms/lvM2JL53cPI/81HmRdZ8+0HyBTMlPstczaVGkJGf0OPzVw2 zFguJgrClvk/jwPrgo5IiA5QNhTctynYMMX/Fr6Pn0+oIYoHnVfxB4vE6Ok7N8qo isfoSs8WwDbSbF5sU893MbcmqWx0uRtbmrLr0LQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=from:to:cc:subject:date:message-id :in-reply-to:references:mime-version:content-type:sender :list-id; s=arctest; t=1518184662; bh=KUp81ry4A4fey7TckUDF3+3bWo qYMZL0PZkVIwqbf6Q=; b=I8pEnQfCVv+k1CpzbKwBK2Hn1piJ3jvemAgBCxqKMk UrUYxJRFZMVVvseL9YblS9GYR48p4RA0HXgwBlS7oofCkhr9JTdgB0hu62Pagojz 4g/MkgzHhUzpe40Rjdld+E8UHc1stctcvTSXkbBHQIBVRcwhfSOTiaiGOlrZ+1iZ LBkECqT/PAIuyHIJy9iDnU9xDwHTGk35L/ZYQHUF4DAANQNUZGE0QEpKIazrY7sj Sk9Nk2Ke7sHr+pdfuKxiWDxmHR6VUjSaVuVdHvUY25S3Dm1ToPdCuA8vFkGurDDD fBG9+ouc5NRTr86c3OTuPQBmfSJvLA36q1cT6CSuHWSQ== ARC-Authentication-Results: i=1; mx4.messagingengine.com; arc=none (no signatures found); dkim=none (no signatures found); dmarc=none (p=none,has-list-id=yes,d=none) header.from=linuxfoundation.org; iprev=pass policy.iprev=209.132.180.67 (vger.kernel.org); spf=none smtp.mailfrom=stable-owner@vger.kernel.org smtp.helo=vger.kernel.org; x-aligned-from=fail; x-ptr=pass x-ptr-helo=vger.kernel.org x-ptr-lookup=vger.kernel.org; x-return-mx=pass smtp.domain=vger.kernel.org smtp.result=pass smtp_org.domain=kernel.org smtp_org.result=pass smtp_is_org_domain=no header.domain=linuxfoundation.org header.result=pass header_is_org_domain=yes Authentication-Results: mx4.messagingengine.com; arc=none (no signatures found); dkim=none (no signatures found); dmarc=none (p=none,has-list-id=yes,d=none) header.from=linuxfoundation.org; iprev=pass policy.iprev=209.132.180.67 (vger.kernel.org); spf=none smtp.mailfrom=stable-owner@vger.kernel.org smtp.helo=vger.kernel.org; x-aligned-from=fail; x-ptr=pass x-ptr-helo=vger.kernel.org x-ptr-lookup=vger.kernel.org; x-return-mx=pass smtp.domain=vger.kernel.org smtp.result=pass smtp_org.domain=kernel.org smtp_org.result=pass smtp_is_org_domain=no header.domain=linuxfoundation.org header.result=pass header_is_org_domain=yes Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753190AbeBINov (ORCPT ); Fri, 9 Feb 2018 08:44:51 -0500 Received: from mail.linuxfoundation.org ([140.211.169.12]:51560 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753475AbeBINos (ORCPT ); Fri, 9 Feb 2018 08:44:48 -0500 From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Laurent Pinchart , Kieran Bingham , thongsyho , Nhan Nguyen Subject: [PATCH 4.9 90/92] drm: rcar-du: Use the VBK interrupt for vblank events Date: Fri, 9 Feb 2018 14:39:59 +0100 Message-Id: <20180209133937.523989272@linuxfoundation.org> X-Mailer: git-send-email 2.16.1 In-Reply-To: <20180209133931.211869118@linuxfoundation.org> References: <20180209133931.211869118@linuxfoundation.org> User-Agent: quilt/0.65 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Sender: stable-owner@vger.kernel.org X-Mailing-List: stable@vger.kernel.org X-getmail-retrieved-from-mailbox: INBOX X-Mailing-List: linux-kernel@vger.kernel.org List-ID: 4.9-stable review patch. If anyone has any objections, please let me know. ------------------ From: Laurent Pinchart commit cbbb90b0c084d7dfb2ed8e3fecf8df200fbdd2a0 upstream. When implementing support for interlaced modes, the driver switched from reporting vblank events on the vertical blanking (VBK) interrupt to the frame end interrupt (FRM). This incorrectly divided the reported refresh rate by two. Fix it by moving back to the VBK interrupt. Fixes: 906eff7fcada ("drm: rcar-du: Implement support for interlaced modes") Signed-off-by: Laurent Pinchart Reviewed-by: Kieran Bingham Signed-off-by: thongsyho Signed-off-by: Nhan Nguyen Signed-off-by: Greg Kroah-Hartman --- drivers/gpu/drm/rcar-du/rcar_du_crtc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/gpu/drm/rcar-du/rcar_du_crtc.c +++ b/drivers/gpu/drm/rcar-du/rcar_du_crtc.c @@ -551,7 +551,7 @@ static irqreturn_t rcar_du_crtc_irq(int status = rcar_du_crtc_read(rcrtc, DSSR); rcar_du_crtc_write(rcrtc, DSRCR, status & DSRCR_MASK); - if (status & DSSR_FRM) { + if (status & DSSR_VBK) { drm_crtc_handle_vblank(&rcrtc->crtc); rcar_du_crtc_finish_page_flip(rcrtc); ret = IRQ_HANDLED;