From nobody Fri Dec 19 18:54:20 2025 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 83FA62652AF; Thu, 4 Dec 2025 09:46:41 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1764841601; cv=none; b=UT8ye6EMgJhKcP2odzFKdgNzBjazmW1bpJrcPAz6c6b465xyhQCysbxxr35sFukREalPlVB0XN6jvHWhHq7379I5TWaoRrgkUZFNdgiVMgVg91VXaow+sXk2yfgpsQV4qBz5V659a5tqM9VftIoIqG+ojfnts4lDcZLIY5YLUjI= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1764841601; c=relaxed/simple; bh=3Xo6KEFNNleLs7NQbRdlOybDeYxGnm96HhQ7ttb1sa4=; h=From:To:Cc:Subject:Date:Message-Id:MIME-Version; b=PIHte1el5VMEKwBQ6tu7ytV9oBMTOEaTFtzPGQafsQQbHnVifNUraOKiSon2dLufTftIsw5WJTbupX3SDHPl9WHqJBkCqMDjDSpm4kpaoxVUbDpH/C4yk2i7cN5vjsoKNcaWLgztVKf45rjrNP2Qi2j08d/xTbl5/KkB54U4ASE= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=qumC81uX; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="qumC81uX" Received: by smtp.kernel.org (Postfix) with ESMTPSA id E51CFC4CEFB; Thu, 4 Dec 2025 09:46:37 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1764841601; bh=3Xo6KEFNNleLs7NQbRdlOybDeYxGnm96HhQ7ttb1sa4=; h=From:To:Cc:Subject:Date:From; b=qumC81uXbcWCwG/Jll8DFkNziiV0b8/vPnQBlJ04lGwHHzGWUFixsy1daHL5jZjcX fwdaSlJ/2UV+bUwlSJ89XbTwiordBco22NN1g7Lu/FLMOLeACPJF4lIAM7SEfAe+PJ vW532CoWcoOjz1dPWVHPSK+qLw5lnVYG7kURBf7/SJBthZqAYSfQPKySL4ohENGJLd JdN+lRwBfBfxLjYYZXijwlyrLORrrmT1SDQYyS/9Q6urK5sySCmtUHx1I+cSSM7/PE M9KiK7UAvHFmt6SS0wuCdeOCAJVch8U0PQOpRU8YhC8y7HDNdA1NvozuCVQp/24y4g 41l/SwBo0Zcfg== From: Arnd Bergmann To: Philipp Zabel , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Simona Vetter , Shawn Guo , Sascha Hauer , Dmitry Baryshkov Cc: Arnd Bergmann , Pengutronix Kernel Team , Fabio Estevam , dri-devel@lists.freedesktop.org, imx@lists.linux.dev, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: [PATCH] drm/imx: select DRM_DISPLAY_HELPER as needed Date: Thu, 4 Dec 2025 10:46:26 +0100 Message-Id: <20251204094635.1030724-1-arnd@kernel.org> X-Mailer: git-send-email 2.39.5 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" From: Arnd Bergmann CONFIG_DRM_BRIDGE_CONNECTOR is a bool option that turns on features of the display helpers, which are in a module controlled by the (tristate) CONFIG_DRM_DISPLAY_HELPER. If the display helpers are in a loadable module, a built-in driver trying to use the bridge connectors fails to link: x86_64-linux-ld: drivers/gpu/drm/imx/ipuv3/parallel-display.o: in function = `imx_pd_bind': parallel-display.c:(.text+0xcd): undefined reference to `drm_bridge_connect= or_init' x86_64-linux-ld: drivers/gpu/drm/imx/ipuv3/imx-ldb.o: in function `imx_ldb_= bind': imx-ldb.c:(.text+0x224): undefined reference to `drm_bridge_connector_init' Select the DRM_BRIDGE_CONNECTOR symbol as well, to ensure it's built-in if anything needs it. Fixes: f94b9707a1c9 ("drm/imx: parallel-display: switch to imx_legacy_bridg= e / drm_bridge_connector") Signed-off-by: Arnd Bergmann Reviewed-by: Dmitry Baryshkov --- drivers/gpu/drm/imx/ipuv3/Kconfig | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/gpu/drm/imx/ipuv3/Kconfig b/drivers/gpu/drm/imx/ipuv3/= Kconfig index acaf25089001..1c3825a86380 100644 --- a/drivers/gpu/drm/imx/ipuv3/Kconfig +++ b/drivers/gpu/drm/imx/ipuv3/Kconfig @@ -13,6 +13,7 @@ config DRM_IMX config DRM_IMX_PARALLEL_DISPLAY tristate "Support for parallel displays" depends on DRM_IMX + select DRM_DISPLAY_HELPER select DRM_BRIDGE select DRM_BRIDGE_CONNECTOR select DRM_IMX_LEGACY_BRIDGE @@ -33,6 +34,7 @@ config DRM_IMX_LDB depends on DRM_IMX depends on COMMON_CLK select MFD_SYSCON + select DRM_DISPLAY_HELPER select DRM_BRIDGE select DRM_BRIDGE_CONNECTOR select DRM_PANEL_BRIDGE --=20 2.39.5