From patchwork Mon Mar 21 13:52:54 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg Kroah-Hartman X-Patchwork-Id: 12787291 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 7BFE7C433F5 for ; Mon, 21 Mar 2022 14:00:28 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id D5C5010E470; Mon, 21 Mar 2022 14:00:27 +0000 (UTC) Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by gabe.freedesktop.org (Postfix) with ESMTPS id 5DB6410E470 for ; Mon, 21 Mar 2022 14:00:26 +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 dfw.source.kernel.org (Postfix) with ESMTPS id 1CB5D612EC; Mon, 21 Mar 2022 14:00:24 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id EF5F9C340F2; Mon, 21 Mar 2022 14:00:22 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1647871223; bh=l/4aaPMy5P3KEVoiyumRgPHI+RSe1kw9SKejYd4DT4E=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=nMqWhC+RzVVyr5AFfcq9GQlpRpmN2Q10jRoxiP6ihfv7KJ6Q6kT0NpGi1u3fBBGNJ fTb0IAk7TMxRuF9v5OI2LvIQZ/6AiDF6KEcCPOVggjiVCRu3avJh+ytSva/smU3TV9 z1ly1ovtY/h1S0D/H7DMKtlK0OAmfVPWwQUjbhX0= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Subject: [PATCH 5.15 18/32] drm: Dont make DRM_PANEL_BRIDGE dependent on DRM_KMS_HELPERS Date: Mon, 21 Mar 2022 14:52:54 +0100 Message-Id: <20220321133221.091073183@linuxfoundation.org> X-Mailer: git-send-email 2.35.1 In-Reply-To: <20220321133220.559554263@linuxfoundation.org> References: <20220321133220.559554263@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 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: dri-devel@lists.freedesktop.org, Sasha Levin , kernel test robot , Greg Kroah-Hartman , Naresh Kamboju , Brian Masney , stable@vger.kernel.org, Thierry Reding , Thomas Zimmermann , Dave Airlie , Linux Kernel Functional Testing , Sam Ravnborg Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" From: Thomas Zimmermann [ Upstream commit 3c3384050d68570f9de0fec9e58824decfefba7a ] 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") Acked-by: Sam Ravnborg Tested-by: Brian Masney 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 Link: https://patchwork.freedesktop.org/patch/478296/ Signed-off-by: Sasha Levin --- drivers/gpu/drm/bridge/Kconfig | 2 +- drivers/gpu/drm/panel/Kconfig | 1 + 2 files changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/bridge/Kconfig b/drivers/gpu/drm/bridge/Kconfig index 431b6e12a81f..68ec45abc1fb 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 @@ -30,6 +29,7 @@ config DRM_CDNS_DSI config DRM_CHIPONE_ICN6211 tristate "Chipone ICN6211 MIPI-DSI/RGB Converter bridge" depends on OF + 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 f63fd0f90360..af1402d83d51 100644 --- a/drivers/gpu/drm/panel/Kconfig +++ b/drivers/gpu/drm/panel/Kconfig @@ -84,6 +84,7 @@ config DRM_PANEL_SIMPLE select VIDEOMODE_HELPERS select DRM_DP_AUX_BUS select DRM_DP_HELPER + select DRM_KMS_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