linux-kernel - Re: [PATCH v2 0/2] drm: vc4: Add support for additional 10/12/16bit YUV plane formats

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Message-ID: <26f31ab8-1b9f-466e-aa9e-2b76bec7a364@collabora.com>
Date: Mon, 18 Aug 2025 12:46:15 +0200
From: Robert Mader <robert.mader@...labora.com>
To: Dave Stevenson <dave.stevenson@...pberrypi.com>,
 Maxime Ripard <mripard@...nel.org>, Maíra Canal
 <mcanal@...lia.com>,
 Raspberry Pi Kernel Maintenance <kernel-list@...pberrypi.com>,
 Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
 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 v2 0/2] drm: vc4: Add support for additional 10/12/16bit
 YUV plane formats

On 07.08.25 15:28, Dave Stevenson wrote:
> We'd been asked if the S01x YUV formats could be supported on Pi5 as some
> software codecs produce them.
> The answer was yes, so this patch adds them and the P01x formats.

I tested this with the Gstreamer MR from 1 and can confirm that the 
formats P010, P012, P016, S010 and S012 work as expected.

Unfortunately S016 is not supported by Gstreamer yet - however chances 
seem high that it works as well.

Thus the series is:

Tested-by: Robert Mader <robert.mader@...labora.com>

1: https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/8540

>
> Signed-off-by: Dave Stevenson <dave.stevenson@...pberrypi.com>
> ---
> Changes in v2:
> - Swapped from adding an extra bool hvs6_only to having a min_gen for
>    each format (suggested by Maíra)
> - Link to v1: https://lore.kernel.org/r/20250724-drm-vc4-extra-formats-v1-1-67fa80597fad@raspberrypi.com
>
> ---
> Dave Stevenson (2):
>        drm/vc4: plane: Flag formats as having a minimum generation
>        drm/vc4: plane: Add support for P01[026] and S01[026] formats
>
>   drivers/gpu/drm/vc4/vc4_plane.c | 56 +++++++++++++++++++++++++++++++++++------
>   drivers/gpu/drm/vc4/vc4_regs.h  |  9 +++++++
>   2 files changed, 58 insertions(+), 7 deletions(-)
> ---
> base-commit: d2b48f2b30f25997a1ae1ad0cefac68c25f8c330
> change-id: 20250724-drm-vc4-extra-formats-1f53e6491cc1
>
> Best regards,

-- 
Robert Mader
Consultant Software Developer

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