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From: Maxime Ripard <mripard@kernel.org>
Date: Wed, 03 Apr 2024 12:56:19 +0200
Subject: [PATCH 1/7] drm/display: Select DRM_KMS_HELPER for DP helpers
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Message-Id: <20240403-fix-dw-hdmi-kconfig-v1-1-afbc4a835c38@kernel.org>
References: <20240403-fix-dw-hdmi-kconfig-v1-0-afbc4a835c38@kernel.org>
In-Reply-To: <20240403-fix-dw-hdmi-kconfig-v1-0-afbc4a835c38@kernel.org>
To: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>, 
 Thomas Zimmermann <tzimmermann@suse.de>, David Airlie <airlied@gmail.com>, 
 Daniel Vetter <daniel@ffwll.ch>, Jani Nikula <jani.nikula@intel.com>, 
 Andrzej Hajda <andrzej.hajda@intel.com>, 
 Neil Armstrong <neil.armstrong@linaro.org>, Robert Foss <rfoss@kernel.org>, 
 Laurent Pinchart <Laurent.pinchart@ideasonboard.com>, 
 Jonas Karlman <jonas@kwiboo.se>, Jernej Skrabec <jernej.skrabec@gmail.com>, 
 Javier Martinez Canillas <javierm@redhat.com>, 
 Russell King <linux@armlinux.org.uk>, Shawn Guo <shawnguo@kernel.org>, 
 Sascha Hauer <s.hauer@pengutronix.de>, 
 Pengutronix Kernel Team <kernel@pengutronix.de>, 
 Fabio Estevam <festevam@gmail.com>, Chen-Yu Tsai <wens@csie.org>, 
 Samuel Holland <samuel@sholland.org>, 
 Catalin Marinas <catalin.marinas@arm.com>, Will Deacon <will@kernel.org>, 
 Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Cc: Mark Brown <broonie@kernel.org>, 
 Alexander Stein <alexander.stein@ew.tq-group.com>, 
 dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, 
 linux-arm-kernel@lists.infradead.org, imx@lists.linux.dev, 
 linux-sunxi@lists.linux.dev, linux-mips@vger.kernel.org, 
 Maxime Ripard <mripard@kernel.org>, kernel test robot <lkp@intel.com>

The DisplayPort helpers rely on some
(__drm_atomic_helper_private_obj_duplicate_state,
drm_kms_helper_hotplug_event) helpers found in files compiled by
DRM_KMS_HELPER.

Prior to commit d674858ff979 ("drm/display: Make all helpers visible and
switch to depends on"), DRM_DISPLAY_DP_HELPER was only selectable so it
wasn't really a big deal. However, since that commit, it's now something
that can be enabled as is, and since there's no expressed dependency
with DRM_KMS_HELPER, it can break too.

Since DRM_KMS_HELPER is a selectable option for now, let's select it for
DRM_DISPLAY_DP_HELPER.

Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202404021556.0JVcNC13-lkp@intel.com/
Closes: https://lore.kernel.org/oe-kbuild-all/202404021700.LbyYZGFd-lkp@intel.com/
Fixes: d674858ff979 ("drm/display: Make all helpers visible and switch to depends on")
Signed-off-by: Maxime Ripard <mripard@kernel.org>
---
 drivers/gpu/drm/display/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/display/Kconfig b/drivers/gpu/drm/display/Kconfig
index 01f2a231aa5f..a38962a556c2 100644
--- a/drivers/gpu/drm/display/Kconfig
+++ b/drivers/gpu/drm/display/Kconfig
@@ -37,10 +37,11 @@ config DRM_DISPLAY_DP_AUX_CHARDEV
 	  channel.
 
 config DRM_DISPLAY_DP_HELPER
 	bool "DRM DisplayPort Helpers"
 	depends on DRM_DISPLAY_HELPER
+	select DRM_KMS_HELPER
 	default y
 	help
 	  DRM display helpers for DisplayPort.
 
 config DRM_DISPLAY_DP_TUNNEL

-- 
2.44.0