From nobody Fri Dec 19 18:52:10 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 6F90D30AABE for ; Thu, 4 Dec 2025 09:47:41 +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=1764841661; cv=none; b=jqf9ZLYQCk9tChMJKVLQwtLVRSp4LQ95cX2ybTTAPHXRmdnOIfIl5pZi57PTjwWuDpaO2vnwIpMZJP3SCQ/n0Iv8OGxOru34j2OhK3DzUDcPeUC9DkpfS5xa2c/l6MT0webxiFyvqU7UGiifrIQmsNXKz2U4vrix9HJPuLF2lQ4= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1764841661; c=relaxed/simple; bh=4XTFLiGe3rteiGnr+N5SWr/pwuXlcKOACJghGkoqs1s=; h=From:To:Cc:Subject:Date:Message-Id:MIME-Version; b=mAgAEo4hCPAtgpsyFZIAQRAVoY8ZebsdaLYlS+CAaB/75qWZMpBxjFYSvLDs7BgZh5BlQLkiZeeDOH0X8aiic0rHYEgM6VUBjur1GvtTpEvQOVVky+Bxmj0GZh5xdeJM41SirxAeoi5XQySLuBW4xpaPDU9qFdc6RCZ1EUxnxWs= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=jlXgHREn; 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="jlXgHREn" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 291C6C4CEFB; Thu, 4 Dec 2025 09:47:36 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1764841660; bh=4XTFLiGe3rteiGnr+N5SWr/pwuXlcKOACJghGkoqs1s=; h=From:To:Cc:Subject:Date:From; b=jlXgHREnNSskCk60DdQVCUNvuZ/t/Hyyb05zjg+1wxhHMOEXokbzb27RaOMztmy4e GHJ9L2D8U7xKWSI3YarCyAU2OJ5UsrJoYOhw8ObAYMw76VNVNjegSAIX4o8zejuhkZ nG9uO6YEbMDmC8bZfTjsH04yzJgBkZ83iu2wCDNj5CpyVXJCcANbgnybsNgVIsPXMg kdzcF+t3bfVjTxo6Az6L5mfCCXk6gN2JMTERPKB3l2ANtTzyTd+Oec699mNiYr66rt lXcvPe83eZ+UaaAKmeAVMeQO9R+dV/fvegdhWoUrbL3tSfsU2QOUqGQyhEADR2/fUv lfHNujFpx/pZQ== From: Arnd Bergmann To: Neil Armstrong , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Simona Vetter , =?UTF-8?q?Guido=20G=C3=BCnther?= , Dmitry Baryshkov Cc: Arnd Bergmann , Jessica Zhang , Svyatoslav Ryhel , David Heidelberg , Linus Walleij , Kaustabh Chakraborty , Maxim Schwalm , AngeloGioacchino Del Regno , Colin Ian King , dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org Subject: [PATCH] drm/panel: visionox-rm69299: add backlight dependency Date: Thu, 4 Dec 2025 10:47:26 +0100 Message-Id: <20251204094734.1031114-1-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 The recently added backlight support breaks when CONFIG_BACKLIGHT_CLASS_DEV= ICE is turned off: arm-linux-gnueabi-ld: drivers/gpu/drm/panel/panel-visionox-rm69299.o: in fu= nction `visionox_rm69299_probe': panel-visionox-rm69299.c:(.text.visionox_rm69299_probe+0x92): undefined ref= erence to `devm_backlight_device_register' arm-linux-gnueabi-ld: (devm_backlight_device_register): Unknown destination= type (ARM/Thumb) in drivers/gpu/drm/panel/panel-visionox-rm69299.o Add the appropriate Kconfig dependency. Fixes: 7911d8cab554 ("drm/panel: visionox-rm69299: Add backlight support") Signed-off-by: Arnd Bergmann --- drivers/gpu/drm/panel/Kconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/gpu/drm/panel/Kconfig b/drivers/gpu/drm/panel/Kconfig index 76f6af819037..2923148dcf07 100644 --- a/drivers/gpu/drm/panel/Kconfig +++ b/drivers/gpu/drm/panel/Kconfig @@ -1163,6 +1163,7 @@ config DRM_PANEL_VISIONOX_R66451 =20 config DRM_PANEL_VISIONOX_RM69299 tristate "Visionox RM69299" + depends on BACKLIGHT_CLASS_DEVICE depends on OF depends on DRM_MIPI_DSI help --=20 2.39.5