linux-kernel - [PATCH 0/3] drm/simpledrm: Apple M1 / DT platform support fixes

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Message-Id: <20211117145829.204360-1-marcan@marcan.st>
Date:   Wed, 17 Nov 2021 23:58:26 +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>
Cc:     Alyssa Rosenzweig <alyssa@...enzweig.io>,
        dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org,
        Hector Martin <marcan@...can.st>
Subject: [PATCH 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).

Hector Martin (3):
  drm/simpledrm: Bind to OF framebuffers in /chosen
  drm/format-helper: Add drm_fb_xrgb8888_to_xrgb2101010_dstclip()
  drm/simpledrm: Enable XRGB2101010 format

 drivers/gpu/drm/drm_format_helper.c | 64 +++++++++++++++++++++++++++++
 drivers/gpu/drm/tiny/simpledrm.c    | 19 ++++++++-
 include/drm/drm_format_helper.h     |  4 ++
 3 files changed, 86 insertions(+), 1 deletion(-)

-- 
2.33.0