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 AC66FC433EF for ; Tue, 15 Mar 2022 08:46:07 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id C0B7C10E7BB; Tue, 15 Mar 2022 08:46:06 +0000 (UTC) Received: from smtp-out1.suse.de (smtp-out1.suse.de [195.135.220.28]) by gabe.freedesktop.org (Postfix) with ESMTPS id 0D1D710E7BA for ; Tue, 15 Mar 2022 08:46:04 +0000 (UTC) Received: from imap2.suse-dmz.suse.de (imap2.suse-dmz.suse.de [192.168.254.74]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-521) server-digest SHA512) (No client certificate requested) by smtp-out1.suse.de (Postfix) with ESMTPS id 8993E2190B; Tue, 15 Mar 2022 08:46:02 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_rsa; t=1647333962; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version: content-transfer-encoding:content-transfer-encoding; bh=yvPN6roiO4z3frFQDCW98CaeGK9o4a+xs3+m3hDjxmQ=; b=oF5TPl0+p0Bh2Qht15jdn+wLYmUXKoocS4z2/okf5Dsh5MtXijxWI/k4Zq2ZLOGln9C9Eb /uoYxIS1BMhO9jrcx8s+z+/IMEIcHChqbNKDyC9VdiJ5PjWfyBeNdz0k36yA140jebQxEs fgVXkj+4JFvnsmF6W9o4ZAu3h/NdzOI= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_ed25519; t=1647333962; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version: content-transfer-encoding:content-transfer-encoding; bh=yvPN6roiO4z3frFQDCW98CaeGK9o4a+xs3+m3hDjxmQ=; b=ZATfUsn/fcUJwwBuHjfRIASpeEdXBZDqdrOkvEViWxhpuD5owFQ3M2XUChyQ/1OsiIvMT0 sjt3VZfMT8KN20BQ== Received: from imap2.suse-dmz.suse.de (imap2.suse-dmz.suse.de [192.168.254.74]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-521) server-digest SHA512) (No client certificate requested) by imap2.suse-dmz.suse.de (Postfix) with ESMTPS id 2988813B4E; Tue, 15 Mar 2022 08:46:02 +0000 (UTC) Received: from dovecot-director2.suse.de ([192.168.254.65]) by imap2.suse-dmz.suse.de with ESMTPSA id YjDtCEpSMGK8bAAAMHmgww (envelope-from ); Tue, 15 Mar 2022 08:46:02 +0000 From: Thomas Zimmermann To: daniel@ffwll.ch, airlied@linux.ie, lyude@redhat.com, airlied@redhat.com, sam@ravnborg.org, thierry.reding@gmail.com, jernej.skrabec@gmail.com, andrzej.hajda@intel.com, narmstrong@baylibre.com, robert.foss@linaro.org, Laurent.pinchart@ideasonboard.com, jonas@kwiboo.se Subject: [PATCH] drm: Don't make DRM_PANEL_BRIDGE dependent on DRM_KMS_HELPERS Date: Tue, 15 Mar 2022 09:45:59 +0100 Message-Id: <20220315084559.23510-1-tzimmermann@suse.de> X-Mailer: git-send-email 2.35.1 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 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: kernel test robot , Naresh Kamboju , dri-devel@lists.freedesktop.org, Thomas Zimmermann , Linux Kernel Functional Testing Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" Fix a number of undefined references to drm_kms_helper.ko in drm_dp_helper.ko: arm-suse-linux-gnueabi-ld: drivers/gpu/drm/dp/drm_dp_mst_topology.o: in function `drm_dp_mst_duplicate_state': drm_dp_mst_topology.c:(.text+0x2df0): undefined reference to `__drm_atomic_helper_private_obj_duplicate_state' arm-suse-linux-gnueabi-ld: drivers/gpu/drm/dp/drm_dp_mst_topology.o: in function `drm_dp_delayed_destroy_work': drm_dp_mst_topology.c:(.text+0x370c): undefined reference to `drm_kms_helper_hotplug_event' arm-suse-linux-gnueabi-ld: drivers/gpu/drm/dp/drm_dp_mst_topology.o: in function `drm_dp_mst_up_req_work': drm_dp_mst_topology.c:(.text+0x7938): undefined reference to `drm_kms_helper_hotplug_event' arm-suse-linux-gnueabi-ld: drivers/gpu/drm/dp/drm_dp_mst_topology.o: in function `drm_dp_mst_link_probe_work': drm_dp_mst_topology.c:(.text+0x82e0): undefined reference to `drm_kms_helper_hotplug_event' This happens if panel-edp.ko has been configured with DRM_PANEL_EDP=y DRM_DP_HELPER=y DRM_KMS_HELPER=m which builds DP helpers into the kernel and KMS helpers sa a module. Making DRM_PANEL_EDP select DRM_KMS_HELPER resolves this problem. To avoid a resulting cyclic dependency with DRM_PANEL_BRIDGE, don't make the latter depend on DRM_KMS_HELPER and fix the one DRM bridge drivers that doesn't already select DRM_KMS_HELPER. As KMS helpers cannot be selected directly by the user, config symbols should avoid depending on it anyway. Signed-off-by: Thomas Zimmermann Fixes: 3755d35ee1d2 ("drm/panel: Select DRM_DP_HELPER for DRM_PANEL_EDP") Reported-by: kernel test robot Cc: Thomas Zimmermann Cc: Naresh Kamboju Cc: Linux Kernel Functional Testing Cc: Lyude Paul Cc: Sam Ravnborg Cc: Daniel Vetter Cc: Maarten Lankhorst Cc: Maxime Ripard Cc: dri-devel@lists.freedesktop.org Cc: Dave Airlie Cc: Thierry Reding --- drivers/gpu/drm/bridge/Kconfig | 3 +-- drivers/gpu/drm/panel/Kconfig | 1 + 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/bridge/Kconfig b/drivers/gpu/drm/bridge/Kconfig index c86f5be4dfe0..007e5a282f67 100644 --- a/drivers/gpu/drm/bridge/Kconfig +++ b/drivers/gpu/drm/bridge/Kconfig @@ -8,7 +8,6 @@ config DRM_BRIDGE config DRM_PANEL_BRIDGE def_bool y depends on DRM_BRIDGE - depends on DRM_KMS_HELPER select DRM_PANEL help DRM bridge wrapper of DRM panels @@ -30,7 +29,7 @@ config DRM_CDNS_DSI config DRM_CHIPONE_ICN6211 tristate "Chipone ICN6211 MIPI-DSI/RGB Converter bridge" depends on OF - depends on DRM_KMS_HELPER + select DRM_KMS_HELPER select DRM_MIPI_DSI select DRM_PANEL_BRIDGE help diff --git a/drivers/gpu/drm/panel/Kconfig b/drivers/gpu/drm/panel/Kconfig index bb2e47229c68..ddf5f38e8731 100644 --- a/drivers/gpu/drm/panel/Kconfig +++ b/drivers/gpu/drm/panel/Kconfig @@ -107,6 +107,7 @@ config DRM_PANEL_EDP select VIDEOMODE_HELPERS select DRM_DP_AUX_BUS select DRM_DP_HELPER + select DRM_KMS_HELPER help DRM panel driver for dumb eDP panels that need at most a regulator and a GPIO to be powered up. Optionally a backlight can be attached so -- 2.35.1