linux-kernel - Re: [PATCH RFC v2 16/20] drm/mediatek: Set post-blend color pipeline driver cap

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Message-ID: <58869a61-12f4-40de-8a24-dbfbf47695bc@bootlin.com>
Date: Fri, 19 Sep 2025 14:50:34 +0200
From: Louis Chauvet <louis.chauvet@...tlin.com>
To: Nícolas F. R. A. Prado <nfraprado@...labora.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>,
 Chun-Kuang Hu <chunkuang.hu@...nel.org>,
 Philipp Zabel <p.zabel@...gutronix.de>,
 Matthias Brugger <matthias.bgg@...il.com>,
 AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>,
 Haneen Mohammed <hamohammed.sa@...il.com>,
 Melissa Wen <melissa.srw@...il.com>
Cc: Alex Hung <alex.hung@....com>, wayland-devel@...ts.freedesktop.org,
 harry.wentland@....com, leo.liu@....com, ville.syrjala@...ux.intel.com,
 pekka.paalanen@...labora.com, contact@...rsion.fr, mwen@...lia.com,
 jadahl@...hat.com, sebastian.wick@...hat.com, shashank.sharma@....com,
 agoins@...dia.com, joshua@...ggi.es, mdaenzer@...hat.com, aleixpol@....org,
 xaver.hugl@...il.com, victoria@...tem76.com, uma.shankar@...el.com,
 quic_naseer@...cinc.com, quic_cbraga@...cinc.com, quic_abhinavk@...cinc.com,
 marcan@...can.st, Liviu.Dudau@....com, sashamcintosh@...gle.com,
 chaitanya.kumar.borah@...el.com, mcanal@...lia.com, kernel@...labora.com,
 daniels@...labora.com, leandro.ribeiro@...labora.com,
 dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org,
 linux-mediatek@...ts.infradead.org, linux-arm-kernel@...ts.infradead.org,
 Simona Vetter <simona.vetter@...ll.ch>
Subject: Re: [PATCH RFC v2 16/20] drm/mediatek: Set post-blend color pipeline
 driver cap

Le 18/09/2025 à 02:43, Nícolas F. R. A. Prado a écrit :
> Now that the driver implements post-blend color pipelines, set the
> driver cap so they can be used from userspace.
> 
> Signed-off-by: Nícolas F. R. A. Prado <nfraprado@...labora.com>

Reviewed-by: Louis Chauvet <louis.chauvet@...tlin.com>

> ---
>   drivers/gpu/drm/mediatek/mtk_drm_drv.c | 3 ++-
>   1 file changed, 2 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/gpu/drm/mediatek/mtk_drm_drv.c b/drivers/gpu/drm/mediatek/mtk_drm_drv.c
> index d5e6bab364143540e1f59df481b9a9d559c39199..73c0f448d7fcf25e473e2c3c6ddaaf28446570cf 100644
> --- a/drivers/gpu/drm/mediatek/mtk_drm_drv.c
> +++ b/drivers/gpu/drm/mediatek/mtk_drm_drv.c
> @@ -611,7 +611,8 @@ static struct drm_gem_object *mtk_gem_prime_import(struct drm_device *dev,
>   }
>   
>   static const struct drm_driver mtk_drm_driver = {
> -	.driver_features = DRIVER_MODESET | DRIVER_GEM | DRIVER_ATOMIC,
> +	.driver_features = DRIVER_MODESET | DRIVER_GEM | DRIVER_ATOMIC |
> +			   DRIVER_POST_BLEND_COLOR_PIPELINE,
>   
>   	.dumb_create = mtk_gem_dumb_create,
>   	DRM_FBDEV_DMA_DRIVER_OPS,
> 

-- 
--
Louis Chauvet, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com