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 gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id B4B4AC433EF for ; Mon, 14 Mar 2022 08:12:19 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id E0FF310E97B; Mon, 14 Mar 2022 08:12:18 +0000 (UTC) Received: from ams.source.kernel.org (ams.source.kernel.org [145.40.68.75]) by gabe.freedesktop.org (Postfix) with ESMTPS id E313C10E97B for ; Mon, 14 Mar 2022 08:12:17 +0000 (UTC) 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 ams.source.kernel.org (Postfix) with ESMTPS id AEDB0B80D26; Mon, 14 Mar 2022 08:12:13 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 94E4BC340E9; Mon, 14 Mar 2022 08:12:11 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1647245532; bh=L7AcIZU5JxT/Szs10vuxf1DRbsgGGv1OHiaXKKbOxok=; h=Subject:To:Cc:From:Date:From; b=XYFrVQduVhJBv3FA+hbNPTs/uKWb8JSPD3NnO0bWCeTPugn/eH/zpCCNivTFjZmPC LO9GUcqvz2poMeuQKw49vmu+vWHWNzd6A6+NavXS9dF3DC4QLtySOmnemm2IE7QKgD 1a8NqC0pSnyx3QBjRuiag44FKTmDJW0RQGP+qvIQ= Subject: Patch "drm/panel: Select DRM_DP_HELPER for DRM_PANEL_EDP" has been added to the 5.15-stable tree To: airlied@redhat.com, daniel@ffwll.ch, dri-devel@lists.freedesktop.org, gregkh@linuxfoundation.org, lkft@linaro.org, lyude@redhat.com, maarten.lankhorst@linux.intel.com, mripard@kernel.org, naresh.kamboju@linaro.org, sam@ravnborg.org, tzimmermann@suse.de From: Date: Mon, 14 Mar 2022 09:12:09 +0100 Message-ID: <1647245529179246@kroah.com> MIME-Version: 1.0 Content-Type: text/plain; charset=ANSI_X3.4-1968 Content-Transfer-Encoding: 8bit X-stable: commit X-Patchwork-Hint: ignore X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: stable-commits@vger.kernel.org Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" This is a note to let you know that I've just added the patch titled drm/panel: Select DRM_DP_HELPER for DRM_PANEL_EDP to the 5.15-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: drm-panel-select-drm_dp_helper-for-drm_panel_edp.patch and it can be found in the queue-5.15 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let know about it. >From 3755d35ee1d2454b20b8a1e20d790e56201678a4 Mon Sep 17 00:00:00 2001 From: Thomas Zimmermann Date: Thu, 3 Feb 2022 10:39:22 +0100 Subject: drm/panel: Select DRM_DP_HELPER for DRM_PANEL_EDP From: Thomas Zimmermann commit 3755d35ee1d2454b20b8a1e20d790e56201678a4 upstream. As reported in [1], DRM_PANEL_EDP depends on DRM_DP_HELPER. Select the option to fix the build failure. The error message is shown below. arm-linux-gnueabihf-ld: drivers/gpu/drm/panel/panel-edp.o: in function `panel_edp_probe': panel-edp.c:(.text+0xb74): undefined reference to `drm_panel_dp_aux_backlight' make[1]: *** [/builds/linux/Makefile:1222: vmlinux] Error 1 The issue has been reported before, when DisplayPort helpers were hidden behind the option CONFIG_DRM_KMS_HELPER. [2] v2: * fix and expand commit description (Arnd) Signed-off-by: Thomas Zimmermann Fixes: 9d6366e743f3 ("drm: fb_helper: improve CONFIG_FB dependency") Reported-by: Naresh Kamboju Reported-by: Linux Kernel Functional Testing Reviewed-by: Lyude Paul Acked-by: Sam Ravnborg Link: https://lore.kernel.org/dri-devel/CA+G9fYvN0NyaVkRQmA1O6rX7H8PPaZrUAD7=RDy33QY9rUU-9g@mail.gmail.com/ # [1] Link: https://lore.kernel.org/all/20211117062704.14671-1-rdunlap@infradead.org/ # [2] Cc: Thomas Zimmermann Cc: Lyude Paul Cc: Daniel Vetter Cc: Maarten Lankhorst Cc: Maxime Ripard Cc: dri-devel@lists.freedesktop.org Link: https://patchwork.freedesktop.org/patch/msgid/20220203093922.20754-1-tzimmermann@suse.de Signed-off-by: Dave Airlie Signed-off-by: Greg Kroah-Hartman --- drivers/gpu/drm/panel/Kconfig | 1 + 1 file changed, 1 insertion(+) --- a/drivers/gpu/drm/panel/Kconfig +++ b/drivers/gpu/drm/panel/Kconfig @@ -83,6 +83,7 @@ config DRM_PANEL_SIMPLE depends on PM select VIDEOMODE_HELPERS select DRM_DP_AUX_BUS + select DRM_DP_HELPER help DRM panel driver for dumb panels that need at most a regulator and a GPIO to be powered up. Optionally a backlight can be attached so Patches currently in stable-queue which might be from tzimmermann@suse.de are queue-5.15/drm-panel-select-drm_dp_helper-for-drm_panel_edp.patch