From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754873AbcEBTZl (ORCPT ); Mon, 2 May 2016 15:25:41 -0400 Received: from bhuna.collabora.co.uk ([46.235.227.227]:58624 "EHLO bhuna.collabora.co.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754511AbcEBTZd (ORCPT ); Mon, 2 May 2016 15:25:33 -0400 From: robert.foss@collabora.com To: daniel.vetter@ffwll.ch, airlied@linux.ie, eric@anholt.net, aniel.vetter@ffwll.ch, fengguang.wu@intel.com, maarten.lankhorst@linux.intel.com, julia.lawall@lip6.fr, alexander.deucher@amd.com, daniels@collabora.com, derekf@osg.samsung.com, varadgautam@gmail.com Cc: dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, Robert Foss Subject: [PATCH] drm/vc4: Return -EBUSY if there's already a pending flip event. Date: Mon, 2 May 2016 15:25:21 -0400 Message-Id: <1462217122-13071-1-git-send-email-robert.foss@collabora.com> X-Mailer: git-send-email 2.5.0 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Robert Foss As per the docs, atomic_commit should return -EBUSY "if an asycnhronous update is requested and there is an earlier update pending". This patch is based on the rockchip patch below: http://article.gmane.org/gmane.comp.video.dri.devel/151678 Note: This patch was resent as the original submission wasn't addressed to the apparopriate recipients. Robert Foss (1): drm/vc4: Return -EBUSY if there's already a pending flip event. drivers/gpu/drm/vc4/vc4_crtc.c | 6 ++++++ drivers/gpu/drm/vc4/vc4_drv.h | 1 + drivers/gpu/drm/vc4/vc4_kms.c | 20 ++++++++++++++++++-- 3 files changed, 25 insertions(+), 2 deletions(-) -- 2.5.0