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Date: Sun, 12 Dec 2021 15:24:04 +0900
From: Hector Martin <marcan@...can.st>
To: Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
Maxime Ripard <mripard@...nel.org>,
Thomas Zimmermann <tzimmermann@...e.de>,
David Airlie <airlied@...ux.ie>,
Daniel Vetter <daniel@...ll.ch>,
Rob Herring <robh+dt@...nel.org>,
Hans de Goede <hdegoede@...hat.com>
Cc: Alyssa Rosenzweig <alyssa@...enzweig.io>,
Javier Martinez Canillas <javier@...hile0.org>,
Pekka Paalanen <ppaalanen@...il.com>,
devicetree@...r.kernel.org, dri-devel@...ts.freedesktop.org,
linux-kernel@...r.kernel.org, Hector Martin <marcan@...can.st>
Subject: [PATCH v3 0/3] drm/simpledrm: Apple M1 / DT platform support fixes
Hi DRM folks,
This short series makes simpledrm work on Apple M1 (including Pro/Max)
platforms the way simplefb already does, by adding XRGB2101010 support
and making it bind to framebuffers in /chosen the same way simplefb
does.
This avoids breaking the bootloader-provided framebuffer console when
simpledrm is selected to replace simplefb, as these FBs always seem to
be 10-bit (at least when a real screen is attached).
Changes since v2:
- Made 10-bit conversion code fill the LSBs
- Added ARGB2101010 to supported formats list
- Simplified OF core code per review feedback
Hector Martin (3):
of: Move simple-framebuffer device handling from simplefb to of
drm/format-helper: Add drm_fb_xrgb8888_to_xrgb2101010_toio()
drm/simpledrm: Add [AX]RGB2101010 formats
drivers/gpu/drm/drm_format_helper.c | 64 +++++++++++++++++++++++++++++
drivers/gpu/drm/tiny/simpledrm.c | 4 +-
drivers/of/platform.c | 4 ++
drivers/video/fbdev/simplefb.c | 21 +---------
include/drm/drm_format_helper.h | 3 ++
5 files changed, 74 insertions(+), 22 deletions(-)
--
2.33.0
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