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=-20.2 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI,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 89982C433F5 for ; Mon, 20 Sep 2021 18:28:47 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 71DD16121E for ; Mon, 20 Sep 2021 18:28:47 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1352656AbhITSaN (ORCPT ); Mon, 20 Sep 2021 14:30:13 -0400 Received: from mail.kernel.org ([198.145.29.99]:46128 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1378263AbhITSYT (ORCPT ); Mon, 20 Sep 2021 14:24:19 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 2291A61A86; Mon, 20 Sep 2021 17:24:43 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1632158684; bh=3qHHijCYxJm+P+XXOkVa9sKBdREAC2QdlWEg93aqQQU=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=kBjgPlKME93p7XsgDbsSTY3AsuH3iQBhaODJ03yFR8Hm0f7pX2nLsQvEPHKcLzWu6 wW9gqe4LPM1K/Dh+K5TQ4nBvENihouUBZKVwrFC8aa1AE5HnBJhjbxeU30I3f0dJmp kcnQa0n40vIe1wd0w3/w2gx2YdE69qESiUriYmsA= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Peter Collingbourne , Robert Foss , John Stultz , Anibal Limon , Bjorn Andersson , Vinod Koul Subject: [PATCH 5.10 001/122] drm/bridge: lt9611: Fix handling of 4k panels Date: Mon, 20 Sep 2021 18:42:53 +0200 Message-Id: <20210920163915.808718406@linuxfoundation.org> X-Mailer: git-send-email 2.33.0 In-Reply-To: <20210920163915.757887582@linuxfoundation.org> References: <20210920163915.757887582@linuxfoundation.org> User-Agent: quilt/0.66 X-stable: review X-Patchwork-Hint: ignore MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Robert Foss commit d1a97648ae028a44536927c87837c45ada7141c9 upstream. 4k requires two dsi pipes, so don't report MODE_OK when only a single pipe is configured. But rather report MODE_PANEL to signal that requirements of the panel are not being met. Reported-by: Peter Collingbourne Suggested-by: Peter Collingbourne Signed-off-by: Robert Foss Tested-by: John Stultz Tested-by: Anibal Limon Tested-by: Peter Collingbourne Reviewed-by: Bjorn Andersson Acked-by: Vinod Koul Link: https://patchwork.freedesktop.org/patch/msgid/20201217140933.1133969-1-robert.foss@linaro.org Cc: Peter Collingbourne Signed-off-by: Greg Kroah-Hartman --- drivers/gpu/drm/bridge/lontium-lt9611.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) --- a/drivers/gpu/drm/bridge/lontium-lt9611.c +++ b/drivers/gpu/drm/bridge/lontium-lt9611.c @@ -867,8 +867,14 @@ static enum drm_mode_status lt9611_bridg const struct drm_display_mode *mode) { struct lt9611_mode *lt9611_mode = lt9611_find_mode(mode); + struct lt9611 *lt9611 = bridge_to_lt9611(bridge); - return lt9611_mode ? MODE_OK : MODE_BAD; + if (!lt9611_mode) + return MODE_BAD; + else if (lt9611_mode->intfs > 1 && !lt9611->dsi1) + return MODE_PANEL; + else + return MODE_OK; } static void lt9611_bridge_pre_enable(struct drm_bridge *bridge)