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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id A9FAFC7EE2C for ; Sun, 28 May 2023 19:30:16 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230204AbjE1TaQ (ORCPT ); Sun, 28 May 2023 15:30:16 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:46868 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230198AbjE1TaP (ORCPT ); Sun, 28 May 2023 15:30:15 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 313ABA7 for ; Sun, 28 May 2023 12:30:14 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id BA21B61D4A for ; Sun, 28 May 2023 19:30:13 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id D28F0C433D2; Sun, 28 May 2023 19:30:12 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1685302213; bh=1Ig8BMvkRJpcP8F17hoOAFO/uCOYzFEkcIE5+D5NYEg=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=WJWoFYhsCQyfJxCfzDnM1EToFiRMPX6TbCaIlvEcu2jkXGFKEV4rAOGKV8qRZBvtV 6HwRwfkNUAdrUmbjGLI01jkYSXuc0kTWHEjwr1IkJl0kKuvWx+FLHyI22AvYbTfnLz ipcn9iYmcVZbxYQAxEcBUqFNpDAMlDmOL/uP0/iU= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Phil Oester , Thomas Zimmermann , Jocelyn Falempe Subject: [PATCH 6.3 045/127] drm/mgag200: Fix gamma lut not initialized. Date: Sun, 28 May 2023 20:10:21 +0100 Message-Id: <20230528190837.818789183@linuxfoundation.org> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20230528190836.161231414@linuxfoundation.org> References: <20230528190836.161231414@linuxfoundation.org> User-Agent: quilt/0.67 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Jocelyn Falempe commit ad81e23426a651eb89a4b306e1c4169e6308c124 upstream. When mgag200 switched from simple KMS to regular atomic helpers, the initialization of the gamma settings was lost. This leads to a black screen, if the bios/uefi doesn't use the same pixel color depth. v2: rebase on top of drm-misc-fixes, and add Cc stable tag. Link: https://bugzilla.redhat.com/show_bug.cgi?id=2171155 Fixes: 1baf9127c482 ("drm/mgag200: Replace simple-KMS with regular atomic helpers") Cc: Tested-by: Phil Oester Reviewed-by: Thomas Zimmermann Signed-off-by: Jocelyn Falempe Link: https://patchwork.freedesktop.org/patch/msgid/20230510131034.284078-1-jfalempe@redhat.com Signed-off-by: Greg Kroah-Hartman --- drivers/gpu/drm/mgag200/mgag200_mode.c | 5 +++++ 1 file changed, 5 insertions(+) --- a/drivers/gpu/drm/mgag200/mgag200_mode.c +++ b/drivers/gpu/drm/mgag200/mgag200_mode.c @@ -640,6 +640,11 @@ void mgag200_crtc_helper_atomic_enable(s if (funcs->pixpllc_atomic_update) funcs->pixpllc_atomic_update(crtc, old_state); + if (crtc_state->gamma_lut) + mgag200_crtc_set_gamma(mdev, format, crtc_state->gamma_lut->data); + else + mgag200_crtc_set_gamma_linear(mdev, format); + mgag200_enable_display(mdev); if (funcs->enable_vidrst)