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Thomas Anderson 9d54646059 drm/amd/display: Reduce HDMI pixel encoding if max clock is exceeded 
[ Upstream commit 840c90fce6 ]

For high-res (8K) or HFR (4K120) displays, using uncompressed pixel
formats like YCbCr444 would exceed the bandwidth of HDMI 2.0, so the
"interesting" modes would be disabled, leaving only low-res or low
framerate modes.

This change lowers the pixel encoding to 4:2:2 or 4:2:0 if the max TMDS
clock is exceeded. Verified that 8K30 and 4K120 are now available and
working with a Samsung Q900R over an HDMI 2.0b link from a Radeon 5700.

Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Thomas Anderson <thomasanderson@google.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-02-01 09:34:45 +00:00
arch arc: eznps: fix allmodconfig kconfig warning 2020-02-01 09:34:40 +00:00
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drivers drm/amd/display: Reduce HDMI pixel encoding if max clock is exceeded 2020-02-01 09:34:45 +00:00
fs cifs: Fix memory allocation in __smb2_handle_cancelled_cmd() 2020-02-01 09:34:37 +00:00
include udp: segment looped gso packets correctly 2020-02-01 09:34:39 +00:00
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net rxrpc: Fix use-after-free in rxrpc_receive_data() 2020-02-01 09:34:40 +00:00
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sound ASoC: topology: Prevent use-after-free in snd_soc_get_pcm_runtime() 2020-02-01 09:34:42 +00:00
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README 

Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.