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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (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 28D4FD1D89F for ; Thu, 4 Dec 2025 09:46:47 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: MIME-Version:Message-Id:Date:Subject:Cc:To:From:Reply-To:Content-Type: Content-ID:Content-Description:Resent-Date:Resent-From:Resent-Sender: Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References:List-Owner; bh=zGD85ppqylFct/OoiQ7VLAJO/LH5DCFl+tlA0JNCPB8=; b=cdjOCrLqTjUrln1Ph3AvvBVtWb itLqB20j4BAZSi0SJ0zTT8mA0RU2tmm9LNxVqIdSHFRBL66ROv7fXGZ6N7k88voMTHjP7wq7MTVN/ 2g1p+71tiKfO0IP6f6cVkw7rvz1VyRkNpAcuWgxZF5AzaW2aqCcyshOAik+4KrV9MZq5JMY3bamtv to5EQ1u25XNN8y77i+daOYRDKTjNyC9fWUoel9CtceAAQ5TweOpaLU4M4qEScgooMFGT77nFJyBDQ LSBS424slTqmXKhU04FEEE22NB2qd1Egb0s5paoQBuFHw9u1G5IdKET333Ee8Qexu6wsoBUP9ZA+q 9KdW+22w==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1vR5v9-00000007mbv-0zFQ; Thu, 04 Dec 2025 09:46:43 +0000 Received: from tor.source.kernel.org ([2600:3c04:e001:324:0:1991:8:25]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1vR5v8-00000007mbo-1NRw for linux-arm-kernel@lists.infradead.org; Thu, 04 Dec 2025 09:46:42 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by tor.source.kernel.org (Postfix) with ESMTP id 71C4D601B0; Thu, 4 Dec 2025 09:46:41 +0000 (UTC) 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 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org 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_connector_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_bridge / drm_bridge_connector") Signed-off-by: Arnd Bergmann --- 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 -- 2.39.5