From patchwork Mon Aug 24 08:28:20 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg KH X-Patchwork-Id: 264930 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=-13.7 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED, DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS, 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 A7631C433DF for ; Mon, 24 Aug 2020 10:01:00 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 7D1612074D for ; Mon, 24 Aug 2020 10:01:00 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1598263260; bh=hk0rrmN0UrDD5bnIQHnlzMyy8SmbjiJM9k2H25JwJCk=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=aDTZdNacHgdUfGSjLMebq1ISOp59r51GZ6Gg8O3tLtplON2cx9XDqPQu6QL/JJc+n K/HwnzcSppih98tPDmY1GmAH7H68YUPpQfLdRqxqBmnZnJtod6qFMfJveuCt4vC8Lu ZRLDrPLSq9k6oIslHHwOaqbFwCamcsgUJywTpa2k= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726739AbgHXIcb (ORCPT ); Mon, 24 Aug 2020 04:32:31 -0400 Received: from mail.kernel.org ([198.145.29.99]:39366 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726718AbgHXIca (ORCPT ); Mon, 24 Aug 2020 04:32:30 -0400 Received: from localhost (83-86-89-107.cable.dynamic.v4.ziggo.nl [83.86.89.107]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 86108207D3; Mon, 24 Aug 2020 08:32:29 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1598257950; bh=hk0rrmN0UrDD5bnIQHnlzMyy8SmbjiJM9k2H25JwJCk=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=RteBJJVmISZA1ItDSZ22tR+KzV094kheRr1bQA/CVQB1G5+DZuByJ4yTbxq2y43pG O+iwASOPXv9XHtftH/CLa/Zbm8rljm1kRizzsAUkXtHkzVdxhALf/K22Oj7F8zGYYe ts1DU5HuEM3g+9krUiWc9W33iP9ObIlM15jUIZXk= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Paul Cercueil , Sam Ravnborg , Sasha Levin Subject: [PATCH 5.8 002/148] drm/panel-simple: Fix inverted V/H SYNC for Frida FRD350H54004 panel Date: Mon, 24 Aug 2020 10:28:20 +0200 Message-Id: <20200824082414.038213682@linuxfoundation.org> X-Mailer: git-send-email 2.28.0 In-Reply-To: <20200824082413.900489417@linuxfoundation.org> References: <20200824082413.900489417@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Sender: stable-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Paul Cercueil [ Upstream commit bad20a2dbfdfaf01560026909506b6ed69d65ba2 ] The FRD350H54004 panel was marked as having active-high VSYNC and HSYNC signals, which sorts-of worked, but resulted in the picture fading out under certain circumstances. Fix this issue by marking VSYNC and HSYNC signals active-low. v2: Rebase on drm-misc-next Fixes: 7b6bd8433609 ("drm/panel: simple: Add support for the Frida FRD350H54004 panel") Cc: stable@vger.kernel.org # v5.5 Signed-off-by: Paul Cercueil Signed-off-by: Sam Ravnborg Link: https://patchwork.freedesktop.org/patch/msgid/20200716125647.10964-1-paul@crapouillou.net Signed-off-by: Sasha Levin --- drivers/gpu/drm/panel/panel-simple.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/panel/panel-simple.c b/drivers/gpu/drm/panel/panel-simple.c index 444b77490a42a..7debf2ca42522 100644 --- a/drivers/gpu/drm/panel/panel-simple.c +++ b/drivers/gpu/drm/panel/panel-simple.c @@ -1717,7 +1717,7 @@ static const struct drm_display_mode frida_frd350h54004_mode = { .vsync_end = 240 + 2 + 6, .vtotal = 240 + 2 + 6 + 2, .vrefresh = 60, - .flags = DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC, + .flags = DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC, }; static const struct panel_desc frida_frd350h54004 = {