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author | 2024-12-18 19:36:47 +0200 | |
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committer | 2025-01-28 18:33:20 +0200 | |
commit | 35e1aacfe536d6e8d8d440cd7155366da2541ad4 (patch) | |
tree | 8fece76dc94627b12345503ef200d206bbf216ae /drivers/gpu/drm/i915/display/intel_dp_mst.c | |
parent | drm/i915/lspcon: do not hardcode settle timeout (diff) | |
download | wireguard-linux-35e1aacfe536d6e8d8d440cd7155366da2541ad4.tar.xz wireguard-linux-35e1aacfe536d6e8d8d440cd7155366da2541ad4.zip |
drm/i915: Drop 64bpp YUV formats from ICL+ SDR planes
I'm seeing underruns with these 64bpp YUV formats on TGL.
The weird details:
- only happens on pipe B/C/D SDR planes, pipe A SDR planes
seem fine, as do all HDR planes
- somehow CDCLK related, higher CDCLK allows for bigger plane
with these formats without underruns. With 300MHz CDCLK I
can only go up to 1200 pixels wide or so, with 650MHz even
a 3840 pixel wide plane was OK
- ICL and ADL so far appear unaffected
So not really sure what's the deal with this, but bspec does
state "64-bit formats supported only on the HDR planes" so
let's just drop these formats from the SDR planes. We already
disallow 64bpp RGB formats.
Cc: stable@vger.kernel.org
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241218173650.19782-2-ville.syrjala@linux.intel.com
Reviewed-by: Juha-Pekka Heikkila <juhapekka.heikkila@gmail.com>
Diffstat (limited to 'drivers/gpu/drm/i915/display/intel_dp_mst.c')
0 files changed, 0 insertions, 0 deletions