From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-10.1 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id DCAFFC76188 for ; Fri, 19 Jul 2019 04:39:52 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id B2D3B2077C for ; Fri, 19 Jul 2019 04:39:52 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1563511192; bh=8VpvaTC8NGBlITD/Wn03BWKljQg/sjAOb1QSXenJhhk=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=cuP+Ek3Pass5mA3VTNlbM4/iSs1Wb9t7YOeDhVcGhDXZ1vf9rFhStSm3a0MbihwyO mjumlY2xgMRuHx2CabojFeD9bxsqU1g0242tWvYP6OMAVtITnFis5Fy4fuiJ463cqv 86NCLAiqCiUITyF2Q8gQh7MDVqhqVOIA0jGAyPog= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726781AbfGSEjr (ORCPT ); Fri, 19 Jul 2019 00:39:47 -0400 Received: from mail.kernel.org ([198.145.29.99]:57854 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728096AbfGSD63 (ORCPT ); Thu, 18 Jul 2019 23:58:29 -0400 Received: from sasha-vm.mshome.net (c-73-47-72-35.hsd1.nh.comcast.net [73.47.72.35]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id EE8BD21883; Fri, 19 Jul 2019 03:58:27 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1563508708; bh=8VpvaTC8NGBlITD/Wn03BWKljQg/sjAOb1QSXenJhhk=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=IfK1L2aRPJe+SmVnxRY49Xs2fzSDSxdvqCpQkZFwgRXW+K/RZWjVId929XL0kBDFH kbAiib1D+ZsPOJkucTqsZzXaSiaLGNPDfm/YHdtGOoepdsv6jPHh/I0ZzZ7wUdTOKG 1rEfanwEktf19MQ0NZp+2/ggmPIKyAE5lphUcXmk= From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Sebastian Reichel , Pavel Machek , Tony Lindgren , Tomi Valkeinen , Sasha Levin , dri-devel@lists.freedesktop.org Subject: [PATCH AUTOSEL 5.2 046/171] drm/omap: don't check dispc timings for DSI Date: Thu, 18 Jul 2019 23:54:37 -0400 Message-Id: <20190719035643.14300-46-sashal@kernel.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190719035643.14300-1-sashal@kernel.org> References: <20190719035643.14300-1-sashal@kernel.org> MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Sebastian Reichel [ Upstream commit ad9df7d91b4a6e8f4b20c2bf539ac09b3b2ad6eb ] 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 Signed-off-by: Tomi Valkeinen Signed-off-by: Sasha Levin --- 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 8712af79a49c..4c43dd282acc 100644 --- a/drivers/gpu/drm/omapdrm/omap_crtc.c +++ b/drivers/gpu/drm/omapdrm/omap_crtc.c @@ -384,10 +384,20 @@ 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) { -- 2.20.1