linux-kernel - Re: [PATCH] drm/hisilicon/hibmc: select CONFIG_DRM_DISPLAY_DP

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Message-ID: <173906639943.8625.1474098563019119282.b4-ty@linaro.org>
Date: Sun,  9 Feb 2025 04:00:07 +0200
From: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
To: Xinliang Liu <xinliang.liu@...aro.org>,
	Tian Tao <tiantao6@...ilicon.com>,
	Arnd Bergmann <arnd@...nel.org>
Cc: Arnd Bergmann <arnd@...db.de>,
	Xinwei Kong <kong.kongxinwei@...ilicon.com>,
	Sumit Semwal <sumit.semwal@...aro.org>,
	Yongqin Liu <yongqin.liu@...aro.org>,
	John Stultz <jstultz@...gle.com>,
	Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
	Maxime Ripard <mripard@...nel.org>,
	Thomas Zimmermann <tzimmermann@...e.de>,
	David Airlie <airlied@...il.com>,
	Simona Vetter <simona@...ll.ch>,
	Javier Martinez Canillas <javierm@...hat.com>,
	dri-devel@...ts.freedesktop.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] drm/hisilicon/hibmc: select CONFIG_DRM_DISPLAY_DP_HELPER

On Mon, 27 Jan 2025 08:10:02 +0100, Arnd Bergmann wrote:
> Without the DP helper code, the newly added displayport support
> causes a link failure:
> 
> x86_64-linux-ld: drivers/gpu/drm/hisilicon/hibmc/dp/dp_aux.o: in function `hibmc_dp_aux_init':
> dp_aux.c:(.text+0x37e): undefined reference to `drm_dp_aux_init'
> x86_64-linux-ld: drivers/gpu/drm/hisilicon/hibmc/dp/dp_link.o: in function `hibmc_dp_link_set_pattern':
> dp_link.c:(.text+0xae): undefined reference to `drm_dp_dpcd_write'
> x86_64-linux-ld: drivers/gpu/drm/hisilicon/hibmc/dp/dp_link.o: in function `hibmc_dp_link_get_adjust_train':
> dp_link.c:(.text+0x121): undefined reference to `drm_dp_get_adjust_request_voltage'
> x86_64-linux-ld: dp_link.c:(.text+0x12e): undefined reference to `drm_dp_get_adjust_request_pre_emphasis'
> x86_64-linux-ld: drivers/gpu/drm/hisilicon/hibmc/dp/dp_link.o: in function `hibmc_dp_link_training':
> dp_link.c:(.text+0x2b0): undefined reference to `drm_dp_dpcd_write'
> x86_64-linux-ld: dp_link.c:(.text+0x2e3): undefined reference to `drm_dp_dpcd_write'
> 
> [...]

Applied to drm-misc-fixes, thanks!

[1/1] drm/hisilicon/hibmc: select CONFIG_DRM_DISPLAY_DP_HELPER
      commit: 9ab127a18018fb06bd42a54ed38bb7b8c449d686

Best regards,
-- 
With best wishes
Dmitry