Re: [PATCH v4 11/14] drm/bridge: analogix_dp: Use bridge->next_bridge instead of plat_data field

From: "Heiko Stübner" <heiko@sntech.de>
To: Damon Ding <damon.ding@rock-chips.com>,
	Andrzej Hajda <andrzej.hajda@intel.com>,
	Neil Armstrong <neil.armstrong@linaro.org>,
	Robert Foss <rfoss@kernel.org>,
	Maarten Lankhorst <maarten.lankhorst@linux.intel.com>,
	Maxime Ripard <mripard@kernel.org>,
	Thomas Zimmermann <tzimmermann@suse.de>,
	David Airlie <airlied@gmail.com>, Simona Vetter <simona@ffwll.ch>,
	Jingoo Han <jingoohan1@gmail.com>,
	Inki Dae <inki.dae@samsung.com>,
	Seung-Woo Kim <sw0312.kim@samsung.com>,
	Kyungmin Park <kyungmin.park@samsung.com>,
	Krzysztof Kozlowski <krzk@kernel.org>,
	Peter Griffin <peter.griffin@linaro.org>,
	Alim Akhtar <alim.akhtar@samsung.com>,
	kernel test robot <lkp@intel.com>
Cc: oe-kbuild-all@lists.linux.dev,
	Laurent Pinchart <Laurent.pinchart@ideasonboard.com>,
	Jonas Karlman <jonas@kwiboo.se>,
	Jernej Skrabec <jernej.skrabec@gmail.com>,
	Luca Ceresoli <luca.ceresoli@bootlin.com>,
	Dmitry Baryshkov <lumag@kernel.org>,
	linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org,
	linux-arm-kernel@lists.infradead.org,
	linux-samsung-soc@vger.kernel.org,
	linux-rockchip@lists.infradead.org,
	Damon Ding <damon.ding@rock-chips.com>
Subject: Re: [PATCH v4 11/14] drm/bridge: analogix_dp: Use bridge->next_bridge instead of plat_data field
Date: Tue, 20 Oct 2026 12:38:50 +0200	[thread overview]
Message-ID: <3789853.R56niFO833@diego> (raw)
In-Reply-To: <202610201309.w3JSXlP5-lkp@intel.com>

Am Dienstag, 20. Oktober 2026, 07:36:21 Mitteleuropäische Sommerzeit schrieb kernel test robot:
> Hi Damon,
> 
> kernel test robot noticed the following build errors:
> 
> [auto build test ERROR on drm-misc/drm-misc-next]
> [also build test ERROR on drm/drm-next next-20261019]
> [cannot apply to daeinki-drm-exynos/exynos-drm-next linus/master v7.3]
> [If your patch is applied to the wrong git tree, kindly drop us a note.
> And when submitting patch, we suggest to use '--base' as documented in
> https://git-scm.com/docs/git-format-patch#_base_tree_information]
> 
> url:    https://github.com/intel-lab-lkp/linux/commits/Damon-Ding/drm-bridge-analogix_dp-Return-bitmask-from-analogix_dp_get_irq_type/20261019-165823
> base:   https://gitlab.freedesktop.org/drm/misc/kernel.git drm-misc-next
> patch link:    https://lore.kernel.org/r/20261019085836.3065008-12-damon.ding%40rock-chips.com
> patch subject: [PATCH v4 11/14] drm/bridge: analogix_dp: Use bridge->next_bridge instead of plat_data field
> config: nios2-randconfig-1000-20261020 (https://download.01.org/0day-ci/archive/20261020/202610201309.w3JSXlP5-lkp@intel.com/config)
> compiler: nios2-linux-gcc (GCC) 11.5.0
> reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20261020/202610201309.w3JSXlP5-lkp@intel.com/reproduce)
> 
> If you fix the issue in a separate patch/commit (i.e. not just a new version of
> the same patch/commit), kindly add following tags
> | Reported-by: kernel test robot <lkp@intel.com>
> | Closes: https://lore.kernel.org/oe-kbuild-all/202610201309.w3JSXlP5-lkp@intel.com/
> 
> All errors (new ones prefixed by >>):
> 
>    nios2-linux-ld: drivers/gpu/drm/bridge/analogix/analogix_dp_core.o: in function `analogix_dp_aux_done_probing':
> >> drivers/gpu/drm/bridge/analogix/analogix_dp_core.c:1669:(.text+0xb80): undefined reference to `devm_drm_of_display_mode_bridge'
> >> drivers/gpu/drm/bridge/analogix/analogix_dp_core.c:1669:(.text+0xb80): relocation truncated to fit: R_NIOS2_CALL26 against `devm_drm_of_display_mode_bridge'

I guess the Rockchip kconfig for the Analogix-DP also needs a

	select DRM_OF_DISPLAY_MODE_BRIDGE

similar to exynos and imx.

Heiko