linux-kernel - Re: [PATCH] drm/bridge: select DRM_KMS_HELPER for AUX

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Message-ID: <cd7fcaec-af16-4364-9a5d-77c5ee50bcc3@linaro.org>
Date: Mon, 14 Apr 2025 09:38:56 +0200
From: Neil Armstrong <neil.armstrong@...aro.org>
To: Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>,
 Andrzej Hajda <andrzej.hajda@...el.com>, Robert Foss <rfoss@...nel.org>,
 Laurent Pinchart <Laurent.pinchart@...asonboard.com>,
 Jonas Karlman <jonas@...boo.se>, Jernej Skrabec <jernej.skrabec@...il.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>
Cc: dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] drm/bridge: select DRM_KMS_HELPER for AUX_BRIDGE

On 11/04/2025 17:09, Dmitry Baryshkov wrote:
> The aux bridge uses devm_drm_of_get_bridge() from the panel bridge (and
> correctly selects DRM_PANEL_BRIDGE). However panel bridge is not a
> separate module, it is compiled into the drm_kms_helper.o. Select
> DRM_KMS_HELPER too to express this dependency.
> 
> Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>
> ---
>   drivers/gpu/drm/bridge/Kconfig | 1 +
>   1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/gpu/drm/bridge/Kconfig b/drivers/gpu/drm/bridge/Kconfig
> index 09a1be234f7173bdf88e385507bbe5e5c6d583a6..b9e0ca85226a603a24f90c6879d1499f824060cb 100644
> --- a/drivers/gpu/drm/bridge/Kconfig
> +++ b/drivers/gpu/drm/bridge/Kconfig
> @@ -16,6 +16,7 @@ config DRM_AUX_BRIDGE
>   	tristate
>   	depends on DRM_BRIDGE && OF
>   	select AUXILIARY_BUS
> +	select DRM_KMS_HELPER
>   	select DRM_PANEL_BRIDGE
>   	help
>   	  Simple transparent bridge that is used by several non-DRM drivers to
> 
> ---
> base-commit: 2bdde620f7f2bff2ff1cb7dc166859eaa0c78a7c
> change-id: 20250411-aux-select-kms-086618b92d6e
> 
> Best regards,

Reviewed-by: Neil Armstrong <neil.armstrong@...aro.org>