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(parent: d9ce4e4) | patch
drm/i915: Fix CHV CGM CSC coefficient sign handling
authorVille Syrjälä <ville.syrjala@linux.intel.com>
Thu, 13 Apr 2023 16:49:12 +0000 (19:49 +0300)
committerVille Syrjälä <ville.syrjala@linux.intel.com>
Fri, 26 May 2023 15:02:09 +0000 (18:02 +0300)
commit2587c63aaaf47f6f4ea9d90047910534a3ecf432
treea9f2cdcb4dfe3dc452c286b3a4bc747b95a4a7f4tree | snapshot
parentd9ce4e430790ba4f45e5febd7b4bd87b0f23563ecommit | diff
drm/i915: Fix CHV CGM CSC coefficient sign handling

The CHV CGM CSC coefficients are in s4.12 two's complement
format. Fix the CTM->CGM conversion to handle that correctly
instead of pretending that the hw coefficients are also
in some sign-magnitude format.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230413164916.4221-4-ville.syrjala@linux.intel.com
Reviewed-by: Uma Shankar <uma.shankar@intel.com>
drivers/gpu/drm/i915/display/intel_color.c diff | blob | history
Domain: System / Kernel;