From patchwork Wed Apr 3 20:13:24 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sebastian Reichel X-Patchwork-Id: 10884429 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 5D77017E9 for ; Wed, 3 Apr 2019 20:13:58 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 4788E28449 for ; Wed, 3 Apr 2019 20:13:58 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 3BB36285B7; Wed, 3 Apr 2019 20:13:58 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI,UNPARSEABLE_RELAY autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id C76DD28449 for ; Wed, 3 Apr 2019 20:13:57 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726099AbfDCUNm (ORCPT ); Wed, 3 Apr 2019 16:13:42 -0400 Received: from bhuna.collabora.co.uk ([46.235.227.227]:52002 "EHLO bhuna.collabora.co.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726531AbfDCUNk (ORCPT ); Wed, 3 Apr 2019 16:13:40 -0400 Received: from [127.0.0.1] (localhost [127.0.0.1]) (Authenticated sender: sre) with ESMTPSA id E46BC2827FC From: Sebastian Reichel To: Sebastian Reichel , Tomi Valkeinen , Tony Lindgren , Pavel Machek , Laurent Pinchart Cc: "H. Nikolaus Schaller" , dri-devel@lists.freedesktop.org, linux-omap@vger.kernel.org, linux-kernel@vger.kernel.org, kernel@collabora.com, Sebastian Reichel Subject: [PATCHv6 2/4] drm/omap: don't check dispc timings for DSI Date: Wed, 3 Apr 2019 22:13:24 +0200 Message-Id: <20190403201326.3127-3-sebastian.reichel@collabora.com> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190403201326.3127-1-sebastian.reichel@collabora.com> References: <20190403195413.djfrgzuj7povdksi@earth.universe> <20190403201326.3127-1-sebastian.reichel@collabora.com> MIME-Version: 1.0 Sender: linux-omap-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-omap@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP While most display types only forward their VM to the DISPC, this is not true for DSI. DSI calculates the VM for DISPC based on its own, but it's not identical. Actually the DSI VM is not even a valid DISPC VM making this check fail. Let's restore the old behaviour and avoid checking the DISPC VM for DSI here. Fixes: 7c27fa57ef31 ("drm/omap: Call dispc timings check operation directly") Acked-by: Pavel Machek Tested-by: Tony Lindgren Tested-by: Pavel Machek Signed-off-by: Sebastian Reichel --- drivers/gpu/drm/omapdrm/omap_crtc.c | 18 ++++++++++++++---- 1 file changed, 14 insertions(+), 4 deletions(-) diff --git a/drivers/gpu/drm/omapdrm/omap_crtc.c b/drivers/gpu/drm/omapdrm/omap_crtc.c index 5a29bf01c0e8..86827a061b0b 100644 --- a/drivers/gpu/drm/omapdrm/omap_crtc.c +++ b/drivers/gpu/drm/omapdrm/omap_crtc.c @@ -395,10 +395,20 @@ static enum drm_mode_status omap_crtc_mode_valid(struct drm_crtc *crtc, int r; drm_display_mode_to_videomode(mode, &vm); - r = priv->dispc_ops->mgr_check_timings(priv->dispc, omap_crtc->channel, - &vm); - if (r) - return r; + + /* + * DSI might not call this, since the supplied mode is not a + * valid DISPC mode. DSI will calculate and configure the + * proper DISPC mode later. + */ + if (omap_crtc->pipe->output->next == NULL || + omap_crtc->pipe->output->next->type != OMAP_DISPLAY_TYPE_DSI) { + r = priv->dispc_ops->mgr_check_timings(priv->dispc, + omap_crtc->channel, + &vm); + if (r) + return r; + } /* Check for bandwidth limit */ if (priv->max_bandwidth) {